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ge data sheet october 31, 2013 ?2012 general electric company. all rights reserved. page 1 qbvs050a0b barracud a* series; dc-dc converter power modules 52-60vdc input; 12.0vdc, 50.0a, 600w output features ? compliant to rohs ii eu ?directive 2011/65/eu? (-z versions) ? compliant to reach directive (ec) no 1907/2006 ? high and flat efficiency profile >96.5% at 12.0v dc , 50% load to 100% output ? input voltage range: 52-60v dc ? delivers up to 50.0a dc output current ? fully very tightly regulated output voltage ? low output ripple and noise ? industry standard, dosa compliant quarter brick: ? 58.4 mm x 36.8 mm x 12.7 mm ? (2.30 in x 1.45 in x 0.50 in) ? base plate (-h=option code, must be ordered) ? constant switching frequency ? positive remote on/off logic ? output over current/voltage protection ? over temperature protection ? wide operating temperature range -5c to 85c, continuous -20c to 90c, short term, 96hrs/year ? ul # 60950-1, 2nd ed. recognized, csa? c22.2 no. 60950-1- 07 certified, and vde? (en60950-1, 2nd ed.) licensed ? ce mark to 2006/96/ec directive ? 750vdc functional isolation ? iso** 9001 and iso14001 certified manufacturing facilities applications ? distributed power architectures ? intermediate bus voltage applications ? servers and storage applications options ? negative remote on/off logic (1=option code, factory preferred) ? auto-restart after fault shutdown (4=option code, factory preferred) ? pin trim description the qbvs050a0b barracuda series of dc-dc converters are a new generation of fully regulated dc/dc power modules designed to support 12.0vdc intermediate bus applications where multiple low voltages are subsequently generated using point of load (pol) converters, as well as other application requiring a tightly regulated output voltage. the qbvs050a0b series operate from an in put voltage range of 52 to 60vdc and provide up to 50.0a output current at output voltages of 12.0v dc in an industry standard, dosa compliant quarter brick. the converter incorporates digital control, synchronous rectification technology, a fully regulated co ntrol topology, and innovative packaging techniques to achieve efficiency exceeding 97% at 12.0v output. this leads to lower power dissipations such that for many applications a heat sink is not required. standard features include on/off control, output overcurrent and over voltage protection, over temperature protection, input under and over voltage lockout. the output is fully isolated from the input, allowing versatile polarity configurations and grounding connections. built-in fil tering for both input and output minimizes the need for external filtering. * trademark of general electric company # ul is a registered trademark of underwriters laboratories, inc. ? csa is a registered trademark of canadian standards association. ? vde is a trademark of verband deutscher elektrotechniker e.v. this product is intended for integration into end-user equipm ent . all of the required proced ures of end-use equipment shoul d be followed. ** iso is a registered trademark of the international organization of standards. rohs compliant
ge data sheet qbvs050a0b barracuda serie s; dc-dc converter power modules 52-60vdc input; 12.0vdc, 50.0a, 600w output october 31, 2013 ?2012 general electric company. all rights reserved. page 2 absolute maximum ratings stresses in excess of the absolute maximum ratings can cause permanent damage to the device. these are absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operat ions sections of the data sheet. exposure to absolute maximum ratings for extended periods can adversely affect device reliability. parameter device symbol min max unit input voltage* continuous v in -0.3 60 v dc non- operating continuous v in 75 v dc operating ambient temperature all t a -20 85 c (see thermal considerations section) storage temperature all t stg -55 125 c i/o isolation voltage (100% factory hi-pot tested) all ? ? 750 v dc * input over voltage protection will shutdown the output voltage when the input voltage exceeds threshold level. electrical specifications unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. parameter device symbol min typ max unit operating input voltage v in 52 54 60 v dc maximum input current i in,max - - 13 a dc (v in =45v, i o =i o, max ) input no load current all i in,no load 175 ma (v in = v in, nom , i o = 0, module enabled) input stand-by current all i in,stand-by 20 ma (v in = v in, nom , module disabled) external input capacitance all 120 600 - f inrush transient all i 2 t - - 1 a 2 s input reflected ripple current, peak-to-peak (5hz to 20mhz, 12 h source impedance; v in = 48v, i o = i omax ; see figure 9) all - 40 - ma p-p input terminal ripple current (measured at module input pin with maximum specified input capacitance and o 500uh inductance between voltage source and input capacitance) 5hz to 20mhz, v in = 52v to 60v, i o = i omax all - - 800 ma rms input ripple rejection (120hz) all - 25 - db caution: this power module is not internally fu sed. an input line fuse must always be used. this power module can be used in a wide variety of applications, ranging from simple standalone operation to an integrated part of sophisticated power architecture. to preserve maximum flexibility, internal fusing is not included, however, to achieve maxi mum safety and system protection, always use an input line fuse. the safety agencies require a fast-acting fuse with a maximum rati ng of 25a in the ungrounded input lead of the power supply (see safety considerations section). based on the information provided in this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be used. refer to the fuse manufacturer?s data sheet for further information.
ge data sheet qbvs050a0b barracuda serie s; dc-dc converter power modules 52-60vdc input; 12.0vdc, 50.0a, 600w output october 31, 2013 ?2012 general electric company. all rights reserved. page 3 electrical specifications (continued) parameter device symbol min typ max unit output voltage set-point (v in =v in,nom , i o =25.0a, t a =25c) all v o, set 11.95 12.00 12.05 v dc output voltage (over all operating input voltage (52v to 60v), resistive load, and temperature conditions until end of life) all v o 11.70 ? 12.30 v dc output regulation line (v in = v in, min to v in, max ) all ? 0.2 ? % v o, set load (i o =i o, min to i o, max ) all ? 0.2 ? % v o, set temperature (t a = -20oc to +85oc) all ? 2 ? % v o, set output ripple and noise on nominal output (v in =v in, nom and i o =i o, min to i o, max ) rms (5hz to 20mhz bandwidth) all ? 70 ? mv rms peak-to-peak (5hz to 20mhz bandwidth) 750uf all ? 150 ? mv pk-pk external output capacitance all c o, max 0 ? 4,500 f output current all i o 0 ? 50 a dc output current limit inception all i o,lim 55 ? 65 a dc output power all p o 0 ? 600 w efficiency v in =v in, nom , t a =25c i o =100% i o, max, v o = v o,set all 97.1 % i o =50% i o, max to 100% i o, max , v o = v o,set all 96.5 % switching frequency (primary fets) f sw 150 khz dynamic load response di o /d t =1a/10 ? s; v in =v in , nom ; t a =25c; (tested with a 1.0 f ceramic,, and 750 f capacitor and across the load.) load change from i o = 50% to 75% of i o,max : peak deviation settling time (v o <10% peak deviation) all v pk t s ? __ 350 700 ? __ mv pk ? s load change from i o = 75% to 50% of i o,max : peak deviation settling time (v o <10% peak deviation) all v pk t s ? __ 350 700 ? __ mv pk ? s isolation specifications parameter symbol min typ max unit isolation capacitance c iso ? 0.01 ? ? f isolation resistance r iso 10 ? ? m ? general specifications parameter symbol device typ unit calculated reliability based upon telcordia sr-332 issue 2: method i, case 3, (i o =80%i o, max , t a =40c, airflow = 200 lfm), 90% confidence mtbf all 2,615,767 hours fit all 382.3 10 9 /hours weight ? with base plate option 73.6 (2.60) g (oz.)
ge data sheet qbvs050a0b barracuda serie s; dc-dc converter power modules 52-60vdc input; 12.0vdc, 50.0a, 600w output october 31, 2013 ?2012 general electric company. all rights reserved. page 4 feature specifications unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. see feature descriptions for additional information. parameter device symbol min typ max unit remote on/off signal interface (v in =v in, min to v in, max , signal referenced to v in- terminal) negative logic: device code suffix ?1? logic low = module on, logic high = module off positive logic: no device code suffix required logic low = module off, logic high = module on logic low specification on/off thresholds: remote on/off current ? logic low (vin =60v) all i on/off ? ? 200 a logic low voltage all v on/off -0.3 ? 0.8 v dc logic high voltage ? (typ = open collector) all v on/off 2.4 ? 14.5 v dc logic high maximum allowable leakage current (v on/off = 2.4v) all i on/off ? ? 130 a maximum voltage allowed on on/off pin all v on/off ? ? 14.5 v dc turn-on delay and rise times (i o =i o, max ) t delay =time until v o = 10% of v o,set from either application of vin with remote on/off set to on (enable with vin); or operation of remote on/off from off to on with vin already applied for at least 30 milli-seconds (enable with on/off). all t delay , enable with vin ? ? 30 ms all t delay, enable with on/off ? ? 5 ms t rise =time for v o to rise from 10% to 90% of v o,set , for c o >5000uf, i o must be < 50% i o, max during t rise . all t rise ? 5 ? ms output overvoltage protection all v o,limit 13.0 16.0 v dc overtemperature protection all t ref ? 130 ? c (see feature descriptions) input undervoltage lockout turn-on threshold 50 51 52 v dc turn-off threshold 47 48 49 v dc hysteresis 2 3 v dc input overvoltage lockout turn-off threshold ? 64 ? v dc turn-on threshold 60 61 ? v dc
ge data sheet qbvs050a0b barracuda serie s; dc-dc converter power modules 52-60vdc input; 12.0vdc, 50.0a, 600w output october 31, 2013 ?2012 general electric company. all rights reserved. page 5 characteristic curves, 12.0v dc output the following figures provide typical characteristics for the qbvs050a0b (12.0v, 50a) at 25oc. the figures are identical for ei ther positive or negative remote on/off logic. input current, i i (a) effciency, (%) input voltage, v o (v) output current, i o (a) figure 1. typical input characteristic. figure 2. typical converter efficiency vs. output current. output voltage, v o (v) (50mv/div) output current output voltage i o (a) (10a/div ) v o (v) (200mv/div) time, t (2 ? s/div) time, t (500 s/div) figure 3. typical output ripple and noise, i o = i o,max c o =750f. figure 4. typical transient response to 0.1a/s step change in load from 50% to 75% to 50% of full load, c o =750f and 48 v dc input. o utput v o lta g e input v o lta g e v o (v) (5v/div) v in (v) (20v/div) output voltage on/off voltage v o (v) (5v/div) v on/off (v) (2v/div) time, t (5 ms/div) time, t (5 ms/div) figure 5. typical start-up using vin with remote on/off enabled, negative logic version shown, i o = i o,max . figure 6. typical start-up using remote on/off with vin applied, negative logic version shown i o = i o,max .
ge data sheet qbvs050a0b barracuda serie s; dc-dc converter power modules 52-60vdc input; 12.0vdc, 50.0a, 600w output october 31, 2013 ?2012 general electric company. all rights reserved. page 6 characteristic curves, 12.0v dc output (continued) the following figures provide typical characteristics for the qbvs050a0b (12.0v, 60a) at 25oc. the figures are identical for ei ther positive or negative remote on/off logic. output voltage, v o (v) output voltage, v o (v) input voltage, v in (v) output current, i o (a) figure 7. typical output voltage regulation vs. input voltage. figure 8. typical output voltage regulation vs. output current. .
ge data sheet qbvs050a0b barracuda serie s; dc-dc converter power modules 52-60vdc input; 12.0vdc, 50.0a, 600w output october 31, 2013 ?2012 general electric company. all rights reserved. page 7 test configurations note: measure input reflected-ripple current with a simulated source inductance (ltest) of 12 h. capacitor cs offsets possible battery impedance. me asure current as shown above. figure 9. input reflected ripple current test setup. note: use a 1.0 f ceramic capacitor and a 10 f aluminum or tantalum capacitor. scope measurement should be made using a bnc socket. posi tion the load between 51 mm and 76 mm (2 in. and 3 in.) from the module. figure 10. output ripple and noise test setup. note: all measurements are taken at the module terminals. when socketing, place kelvin connections at module terminals to avoid measurement errors due to socket contact resistance. figure 11. output voltage and efficiency test setup. design considerations input source impedance the power module should be connected to a low ac-impedance source. highly inductive source impedance can affect the stability of the power module. for the test configuration in figure 9, a 680 f electrolytic capacitor, c in , (esr<0.7 ? at 100khz), mounted close to the power module helps ensure the stability of the unit. safety considerations for safety-agency approval of the system in which the power module is used, the power module must be installed in compliance with the spacing and separation requirements of the end-use safety agency standard, i.e., ul60950-1 2 nd ed., csa c22.2 no. 60950-1 2 nd ed., and vde0805-1 en60950-1 2 nd ed. if the input source is non-selv (elv or a hazardous voltage greater than 60 vdc and less than or equal to 75vdc), for the module?s output to be considered as meeting the requirements for safety extra-low voltage (selv), all of the following must be true: ? the input source is to be provided with reinforced insulation from any other hazardous voltages, including the ac mains. ? one v in pin and one v out pin are to be grounded, or both the input and output pins are to be kept floating. ? the input pins of the module are not operator accessible. ? another selv reliability test is conducted on the whole system (combination of supply source and subject module), as required by the safety agencies, to verify that under a single fault, hazardous voltages do not appear at the module?s output. note: do not ground either of the input pins of the module without grounding one of the output pins. this may allow a non-selv voltage to appear between the output pins and ground. the power module has safety extra-low voltage (selv) outputs when all inputs are selv. the input to these units is to be provided with a maximum 25a fast-acting (or time-delay) fuse in the ungrounded input lead. load contact and supply i i contact v i (+) v i (?) v o1 distribution losses resistance i o v o2
ge data sheet qbvs050a0b barracuda serie s; dc-dc converter power modules 52-60vdc input; 12.0vdc, 50.0a, 600w output october 31, 2013 ?2012 general electric company. all rights reserved. page 8 feature descriptions overcurrent protection to provide protection in a fault output overload condition, the module is equipped with internal current-limiting circuitry and can endure current limiting continuously. if the overcurrent condition causes the output voltage to fall greater than 3.0v from v o,set , the module will shut down and remain latched off. the overcurrent latch is reset by either cycling the input power or by toggling the on/off pin for one second. if the output overload condition still exists when the module restarts, it will shut down again. this operation will continue indefinitely until the overcurrent condition is corrected. a factory configured auto-restart option (with overcurrent and overvoltage auto-restart managed as a group) is also available. an auto-restart feature continually attempts to restore the operation until fault condition is cleared. remote on/off the module contains a standard on/off control circuit reference to the v in (-) terminal. two factory configured remote on/off logic options are available. positive logic remote on/off turns the modu le on during a logic-high voltage on the on/off pin, and off during a logic low. negative logic remote on/off turns the module off during a logic high, and on during a logic low. negative logic, device code suffix "1," is the factory-preferred configuration. the on/off circuit is powered from an internal bias supply, derived from the input voltage terminals. to turn the power module on and off, the user must supply a switch to control the voltage between the on/off terminal and the v in (-) terminal (v on/off ). the switch can be an open collector or equivalent (see figure 12). a logic low is v on/off = -0.3v to 0.8v. the typical i on/off during a logic low (vin=48v, on/off terminal=0.3v) is 147a. the switch should maintain a logic- low voltage while sinking 200a. during a logic high, the maximum v on/off generated by the power module is 8.2v. the maximum allowable leakage current of the switch at v on/off = 2.4v is 130a. if using an external voltage source, the maximum voltage v on/off on the pin is 14.5v with respect to the v in (-) terminal. if not using the remote on/off feature, perform one of the following to turn the unit on: for negative logic, short on/off pin to v in (-). for positive logic: leave on/off pin open. figure 12. remote on/off implementation. output overvoltage protection the module contains circuitry to detect and respond to output overvoltage conditions. if the overvoltage condition causes the output voltage to rise above the limit in the specifications table, the module will shut down and remain latched off. the overvoltage latch is reset by either cycling the input power, or by toggling the on/off pin for one second. if the output overvoltage condition still exists when the module restarts, it will shut down again. this operation will continue indefinitely until the overvoltage condition is corrected. a factory configured auto-restart option (with overcurrent and overvoltage auto-restart managed as a group) is also available. an auto-restart feature continually attempts to restore the operation until fault condition is cleared. overtemperature protection these modules feature an overtemperature protection circuit to safeguard against thermal damage. the circuit shuts down the module when the maximum device reference temperature is exceeded. the module will automatically restart once the reference temperature cools by ~25c. input under/over voltage lockout at input voltages above or below the input under/over voltage lockout limits, module operation is disabled. the module will begin to operate when the input voltage level changes to within the under and overvoltage lockout limits. thermal considerations the power modules operate in a variety of thermal environments and sufficient cooling should be provided to help ensure reliable operation. thermal considerations include ambient temperature, airflow, module power dissipation, and the need for increased reliability. a reduction in the operating temperature of the module will result in an increase in reliability. the thermal data presented here is based on physical measurements taken in a wind tunnel. heat-dissipating components are mounted on the top side of the module. heat is removed by conduction, convection and radiation to the surrounding environment. proper cooling can be verified by measuring the thermal reference temperature (th 1 ). peak temperature occurs at the position indicated in figure 16. for reliable operation this temperature should not exceed th 1 =100c. for extremely high reliability you can limit this temperature to a lower value. the output power of the module should not exceed the rated power for the module as listed in the ordering information table.
ge data sheet qbvs050a0b barracuda series; dc-dc converter power modules 52-60vdc input; 12.0vdc, 50.0a, 600w output october 31, 2013 ?2012 general electric company. all rights reserved. page 9 feature descriptions (continued) figure 16. location of the thermal reference temperature th 1 for base plate module. heat transfer via convection the thermal data presented here is based on physical measurements taken in a wind tunnel, using automated thermo-couple instrumentation to monitor key component temperatures: fets, diodes, control ics, magnetic cores, ceramic capacitors, opto-isolators, and module pwb conductors, while controlling the ambient airflow rate and temperature. for a given airflow and ambient temperature, the module output power is increased, until one (or more) of the components reaches its maximum derated operating temperature, as defined in ipc-9592a. this procedure is then repeated for a different airflow or ambient temperature until a family of module output derating curves is obtained. please refer to the application note ?thermal characterization process for open-frame board-mounted power modules? for a detailed discussion of thermal aspects including maximum device temperatures. figure 17. thermal test setup . increased airflow over the module enhances the heat transfer via convection. the thermal derating of figure 18- 21 shows the maximum output current that can be delivered by each module in the indicated orientation without exceeding the maximum th x temperature versus local ambient temperature (t a ) for several air flow conditions. output current, i o (a) local ambient temperature, t a ( ? c) figure 18. output current derating for the qbvs050a0bxx-h in the transverse orientation; airflow direction from vin(-) to vin(+); vin = 54v. output current, i o (a) local ambient temperature, t a ( ? c) figure 19. output current derating for the qbvs050a0bxx-h + 0.5? heat sink in the transverse orientation; airflow direction from vin(-) to vin(+); vin = 54v. output current, i o (a) local ambient temperature, t a ( ? c) figure 20. output current derating for the qbvs050a0bxx-h in the longitudinal orientation; airflow direction from vout to vin; vin = 54v.
ge data sheet qbvs050a0b barracuda serie s; dc-dc converter power modules 52-60vdc input; 12.0vdc, 50.0a, 600w output october 31, 2013 ?2012 general electric company. all rights reserved. page 10 output current, i o (a) local ambient temperature, t a ( ? c) figure 21. output current derating for the qbvs050a0bxx-h + 0.5? heat sink in the longitudinal orientation; airflow direction from vout to vin; vin = 54v. layout considerations the qbvs050a0b power module series are low profile in order to be used in fine pitch system card architectures. as such, component clearance between the bottom of the power module and the mounting board is limited. avoid placing copper areas on the outer layer directly underneath the power module. also avoid placing via interconnects underneath the power module. for additional layout guide-lines, refer to flt012a0z data sheet. through-hole lead-free soldering information the rohs-compliant, z version, through-hole products use the sac (sn/ag/cu) pb-free solder and rohs-compliant components. the module is designed to be processed through single or dual wave soldering machines. the pins have a rohs-compliant, pure tin finish that is compatible with both pb and pb-free wave soldering processes. a maximum preheat rate of 3 ? c/s is suggested. the wave preheat process should be such that the temperature of the power module board is kept below 210 ? c. for pb solder, the recommended pot temperature is 260 ? c, while the pb-free solder pot is 270 ? c max. reflow lead-free soldering information the rohs-compliant through-hole products can be processed with the following paste-through-hole pb or pb- free reflow process. max. sustain temperature : 245 ? c (j-std-020c table 4-2: packaging thickness>=2.5 mm / volume > 2000 mm 3 ), peak temperature over 245 ? c is not suggested due to the potential reliability risk of components under continuous high-temperature. min. sustain duration above 217 ? c : 90 seconds min. sustain duration above 180 ? c : 150 seconds max. heat up rate: 3 ? c/sec max. cool down rate: 4 ? c/sec in compliance with jedec j-std-020c spec for 2 times reflow requirement. pb-free reflow profile bmp module will comply with j-std-020 rev. d (moisture/reflow sensitivity classification for nonhermetic solid state surface mount devices) for both pb-free solder profiles and msl classification procedures. bmp will comply with jedec j-std-020c specification for 3 times reflow requirement. the suggested pb-free solder paste is sn/ag/cu (sac). the recommended linear reflow profile using sn/ag/cu solder is shown in figure 24. figure 22. recommended linear reflow profile using sn/ag/cu solder. msl rating the qbvs050a0b modules have a msl rating of 2a. storage and handling the recommended storage environment and handling procedures for moisture-sensitive surface mount packages is detailed in j-std-033 rev. a (handling, packing, shipping and use of moisture/reflow sensitive surface mount devices). moisture barrier bags (mbb) with desiccant are required for msl ratings of 2 or greater. these sealed packages should not be broken until time of use. once the original package is broken, the floor life of the product at conditions of ? 30c and 60% relative humidity varies according to the msl rating (see j-std-060a). the shelf life for dry packed smt packages will be a minimum of 12 months from the bag seal date, when stored at the following conditions: < 40 c, < 90% relative humidity.
ge data sheet qbvs050a0b barracuda serie s; dc-dc converter power modules 52-60vdc input; 12.0vdc, 50.0a, 600w output october 31, 2013 ?2012 general electric company. all rights reserved. page 11 post solder cleaning and drying considerations post solder cleaning is usually the final circuit board assembly process prior to electrical board testing. the result of inadequate cleaning and drying can affect both the reliability of a power module and the testability of the finished circuit board assembly. for guidance on appropriate soldering, cleaning and drying procedures, refer to lineage power board mounted power modules: soldering and cleaning application note (an04-001). if additional information is needed, please consult with your ge sales representative for more details
ge data sheet qbvs050a0b barracuda serie s; dc-dc converter power modules 52-60vdc input; 12.0vdc, 50.0a, 600w output october 31, 2013 ?2012 general electric company. all rights reserved. page 12 emc considerations the circuit and plots in figure 23 shows a suggested configuration to meet the conducted emission limits of en55022 class a. for further information on designing for emc compliance, please refer to the flt012a0z data sheet. c1 & c2 = 2.2uf 100v 1210 c4 = 330uf 100v nichicon vr series c5 & c8 = 1uf 100v 1210 c6 & c7 = total of six 0.01uf 1500v 1210 caps c9 = 1000uf 100v kme series figure 23. emc considerations
ge data sheet qbvs050a0b barracuda series; dc-dc converter power modules 52-60vdc input; 12.0vdc, 50.0a, 600w output october 31, 2013 ?2012 general electric company. all rights reserved. page 13 mechanical outline for qbvs050a0b-h (base plate) through-hole module dimensions are in millimeters and [inches]. tolerances: x.x mm ? 0.5 mm [x.xx in. ? 0.02 in.] (unless otherwise indicated) x.xx mm ? 0.25 mm [x.xxx in ? 0.010 in.] top view* side views *side side label includes ge name, product designation, and data code ** standard pin tail length. optional pin tail lengths shown in table 2, device options. bottom view*** pin number pin name 1 * vin(+) 2 * on/off 3 * vin(-) 4 * vout(-) 8 * vout(+) ***bottom side label includes ge name, product designation, and data code
ge data sheet qbvs050a0b barracuda serie s; dc-dc converter power modules 52-60vdc input; 12.0vdc, 50.0a, 600w output october 31, 2013 ?2012 general electric company. all rights reserved. page 14 recommended pad layouts dimensions are in millimeters and (inches). tolerances: x.x mm ? 0.5 mm [x.xx in. ? 0.02 in.] (unless otherwise indicated) x.xx mm ? 0.25 mm [x.xxx in ? 0.010 in.] through-hole modules pin number pin name 1 * vin(+) 2 * on/off 3 * vin(-) 4 * vout(-) 8 * vout(+) hole and pad diameter recommendations: pin number hole dia (mm) pad dia (mm) 1, 2, 3 1.6 2.1 4, 8 2.2 3.2
ge data sheet qbvs050a0b barracuda serie s; dc-dc converter power modules 52-60vdc input; 12.0vdc, 50.0a, 600w output october 31, 2013 ?2012 general electric company. all rights reserved. page 15 packaging details all versions of the qbvs050a0b are supplied as standard in the plastic trays shown in figure 24. tray specification material pet (1mm) max surface resistivity 10 9 -10 11 ? /pet color clear capacity 12 power modules min order quantity 24 pcs (1 box of 2 full trays + 1 empty top tray) each tray contains a total of 12 power modules. the trays are self-stacking and each shipping box for the qbvs050a0b module contains 2 full trays plus one empty hold-down tray giving a total number of 24 power modules. base plate module tray figure 24. qbvs050a0b packaging tray
ge data sheet qbvs050a0b barracuda serie s; dc-dc converter power modules 52-60vdc input; 12.0vdc, 50.0a, 600w output contact us for more information, call us at usa/canada: +1 888 546 3243 , or +1 972 244 9288 asia-pacific: +86.021.54279977*808 europe, middle-east and africa: +49.89.878067-280 india: +91.80.28411633 www.ge.com/powerelectronics october 31, 2013 ?2012 general electric company. all rights reserved. version 1.0 ordering information please contact your ge sales representative for pricing, availability and optional features. table 1. device codes product codes input voltage output voltage output current efficiency connector type comcodes qbvs050a0b41-hz 54v (52 ? 60vdc) 12.0v 50.0a 97.1% through hole 150031297 table 2. device options

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