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vicor corp. tel: 800-735-6200, 978-470-2900 fax: 978-475-6715 enmods system: farm3 and miniham rev. 2.9 page 1 of 13 set your site on vicor at vicorpower.com parameter rating unit notes farm3 l to n voltage 264 v rms continuous 280 v rms 100 ms +out to ?out voltage 400 vdc bok to ?out voltage 16 vdc en to ?out voltage 16 vdc mounting torque 4 ? 6 (0.45 ? 0.68) in-lbs (n-m) 6 each, 4-40 screw operating temperature - 40 to +100 c h-grade storage temperature - 55 to +125 c h-grade pin soldering temperature 500 (260) f (c) < 5 sec; wave solder 750 (390) f (c) < 7 sec; hand solder output current 3.5 a baseplate temperature 100 c features ? rohs compliant (with f or g pin style) ? passive harmonic current attenuation to en61000-3-2 ? 575 w rated power output ? autoranging 115/230 vac input ? inrush current limiting product highlights the enmod system is a new ac front-end solution for compliance to electromagnetic compatibility (emc) standards. it consists of the miniham passive harmonic attenuation module and the farm3 autoranging ac-dc front-end module. combined with the filtering and hold-up capacitors as specified herein, the enmod system provides full compliance to: en61000-3-2 harmonic current en55022, level b conducted emissions en61000-4-5 surge immunity en61000-4-11 line disturbances en61000-3-3 inrush current the miniham is the first passive product specifically designed for compliance to en harmonic current limits. unlike active pfc solutions, the miniham generates no emi, greatly simplifying and reducing system noise filtering requirements. it is also considerably smaller and more efficient than active alternatives and improves mtbf by an order of magnitude. optimized for operation on the dc bus (provided by the farm3) rather than directly on the ac line, it will provide harmonic current compliance at up to 600 w of input power at 230 vac. the 115/230 vac input farm3 is a new member of vicor?s filter and autoranging module product line that has been optimized for use as the front-end for the miniham. both modules are in vicor?s standard mini half-brick package. together with vicor?s 300 v input dc-dc converters, they form the basis of a low noise, high efficiency, rugged, simple and reliable en compliant power system. data sheet enmods tm component power front-end system for en compliance each module: 2.28 x 2.2 x 0.5 in 57,9 x 55,9 x 12,7 mm absolute maximum ratings thermal resistance parameter min typ max unit baseplate to sink flat, greased surface 0.16 c/watt with thermal pad (p/n 20264) 0.14 c/watt baseplate to ambient free convection 8.0 c/watt 1000 lfm 1.9 c/watt product type* baseplate 1 = slotted 2 = threaded 3 = thru-hole pin style ** 1 = short pin 2 = long pin s = short modumate n = long modumate f = short rohs g = long rohs product grade temperatures (c) grade operating storage c = ? 20 to +100 ? 40 to +125 t = ? 40 to +100 ? 40 to +125 h = ? 40 to +100 ? 55 to +125 part numbering *en1 product includes one each miniham and farm3 with same product grade, pin and baseplate style. **pin styles s & n are compatible with the modumate interconnect system for socketing and surface mounting. en1 c 1 1
vicor corp. tel: 800-735-6200, 978-470-2900 fax: 978-475-6715 enmods system: farm3 and miniham rev. 2.9 page 2 of 13 set your site on vicor at vicorpower.com parameter min typ max unit notes operating input voltage low range 90 115 132 vac autoranging (doubler mode) high range 180 230 264 vac autoranging (bridge mode) input undervoltage 90 vac shutdown ac line frequency 47 63 hz c-, and t-grade power factor 0.68 0.72 typical line inrush current 30 amps 264 vac line voltage input specifications (see figure 3 thru figure 7 for operating characteristics) electrical characteristics electrical characteristics apply over the full operating range of input voltage, output power and baseplate temperature, unless otherwise specified. all temperatures refer to the operating temperature at the center of the baseplate. performance specifications are b ased on the enmod system as shown in figure 1a . * tracking error between bus ok and enable thresholds electromagnetic compatibility (configured as illustrated in figures 1a and 1b) parameter standard notes harmonic currents en61000-3-2, amendment 14 50 ? 625 w, 230 vac input 575 w output (see figure 2) line disturbance / immunity en61000-4-11 interruptions and brownouts transient / surge immunity en61000-4-5 2 kv ? 50 s line or neutral to earth 1 kv ? 50 s line to neutral conducted emissions en55022, level b with filter (see figures 1a and 1b) flicker / inrush en6100-3-3 parameter min typ max unit notes output power 0 575 watts efficiency @115 vac 93 94 % full load @ 230 vac 96 97 % full load output voltage 250 375 vdc external hold-up capacitance 1,750 f 2-3300 f in series?hub 3300s output specifications parameter min typ max unit notes ac bus ok (bok) low state resistance 15 to negative output ? bus normal low state voltage 0.1 vdc 50 ma maximum high state voltage 14.8 15.0 15.2 vdc bus abnormal, 27 k internal pull up to 15 vdc (see fig.12) bok true threshold 235 240 245 vdc output bus voltage bok false threshold 200 205 210 vdc output bus voltage module enable (en) low state resistance 15 to negative output ? converters disabled low state voltage 0.1 vdc 50 ma maximum high state voltage 14.8 15.0 15.2 vdc 150 k internal pull up to 15 vdc (see figure 11) enable threshold 235 240 vdc output bus voltage disable threshold 185 190 195 vdc output bus voltage ac bus ok - module enable, 15 17 20 vdc ac bus ok and module enable thresholds track differential error* control specifications
vicor corp. tel: 800-735-6200, 978-470-2900 fax: 978-475-6715 enmods system: farm3 and miniham rev. 2.9 page 3 of 13 set your site on vicor at vicorpower.com electrical characteristics (cont.) agency approvals safety standards agency markings notes farm3 en60950, ul60950, csa 60950 ct vus see license conditions on the safety certificate ce marked low voltage directive miniham en60950, ul60950, csa 60950 ct vus see license conditions on the safety certificate ce marked low voltage directive parameter min typ max unit notes baseplate material aluminum miniham cover dupont zenite / aluminum farm3 cover polyethermide pin material style 1 & 2 copper, tin/lead solder plating style s & n (modumate compatible), style f & g (rohs compliant) copper, nickel/gold plating weight farm3 3.1 (88) ounces (grams) miniham 5.1 (145) ounces (grams) size 2.25 x 2.2 x 0.5 inches vicor?s standard mini half-brick package 57,9 x 55,9 x 12,7 mm mtbf >1,000,000 hours 25?c, ground benign mil hdbk 217f general specifications safety specifications (with baseplate earthed and quick acting line fuse 10 a max.) parameter min typ max unit notes isolation (in to out) none isolation provided by dc-dc converter(s) dielectric withstand 2,121 vdc baseplate earthed (i/o to baseplate) leakage current 2.5 ma 264 vac
vicor corp. tel: 800-735-6200, 978-470-2900 fax: 978-475-6715 enmods system: farm3 and miniham rev. 2.9 page 4 of 13 set your site on vicor at vicorpower.com c2 r4 c4 l2/n l1 pe l1 r 3 l2 r1 r2 l 3 c1 c 3 f1 v1 n l pe inp u t o u tp u t vicor part description part number c1 1.0 0257 3 c2, c 3 4,700 pf (y2 type) 01000 c4 0. 33 f 00927 f1 10 a wickm a n 194 s erie s or b uss m a n abc-10 l1, l2 27 h 3 2012 l 3 1. 3 mh 3 2006 r1, r2 10 r 3 150 k , 0.5 w r4 2.2 , 2 w v1 mov 3 0076 figure 1b input emi filter for en55022, level b compliance harmonic current 0.01 0.10 1.00 10.00 2345678910111213141516171819202122232425262728293031323334353637383940 harmonic number current (a) measured values odd harmonic limits even harmonic limits * figure 2 measured harmonic current at 230 vac, 575 w vs. en spec limits *measured values of even harmonics are below 0.01a operating characteristics figure 1a offline power supply configuration farm3 n s r l + bok s t en ? mini ham n/+ l/? filter ac line inp u t emi gnd l n +in pc pr ?in +in pc pr ?in vicor 300 vin dc-dc converter r1 r2 c1 c2 d2 d1 c 3 c5 c4 c6 f1 f2 to a ddition a l converter s part c1,2 c 3 ? 6 c7, 8 c9,c10 r1,2 r 3 , r4 v1,2 v 3 v5,v6 f1,2 d1,2 d 3 ,d4 description hold u p c a p a citor s 4,700 pf (y2 type) film c a p., 0.61 f 0.001 f 150 k , 0.5 w 250 , 0.125 w mov 220 v 270 v mov bidirection a l tv s diode u s e recommended f us ing for s pecific converter s diode (1n4006) 1n5 8 17 vicor part number 01000 3 4610 3 02 3 4-220 3 0076 1.5ke51ca 00670 2610 8 sizing pcb traces: all tr a ce s s hown in b old c a rry s ignific a nt c u rrent a nd s ho u ld b e s ized a ccordingly. holdup box (hub) 410 f hub 8 20- s 1100 f hub2200- s 600 f hub1200- s 1 3 50 f hub2700- s 900 f hub1 8 00- s 1650 f hub 33 00- s nc nc nc nc nc n n l l pe v1 v2 (fig.1b) c7 c 8 vicor 300 vin dc-dc converter n/+ l/? v 3 d 3 c9 c10 d4 v5 v6 r 3 r4 pe
vicor corp. tel: 800-735-6200, 978-470-2900 fax: 978-475-6715 enmods system: farm3 and miniham rev. 2.9 page 5 of 13 set your site on vicor at vicorpower.com operating characteristics (farm3) figure 3 start-up at 120 vac input figure 5 power-down from 120 vac figure 6 power-down from 240 vac figure 4 start-up at 240 vac input vdc output strap engaged i ac input @2a / mv i ac input @2a / mv enable enable b ok vdc output b ok vdc output enable b ok vdc output enable b ok figure 7 output overvoltage protection 240 vac range vdc output ? enable b ok
vicor corp. tel: 800-735-6200, 978-470-2900 fax: 978-475-6715 enmods system: farm3 and miniham rev. 2.9 page 6 of 13 set your site on vicor at vicorpower.com typical conducted emissions with v300 series converter and filter (see figure 1b) quasi peak and average limits 230 v input, 575 w output figure 8a peak detection figure 8c average detection figure 8b quasi peak detection
vicor corp. tel: 800-735-6200, 978-470-2900 fax: 978-475-6715 enmods system: farm3 and miniham rev. 2.9 page 7 of 13 set your site on vicor at vicorpower.com the enmod component power front-end system for en compliance provides an effective solution for an ac front end of a power supply enabled with vicor dc-dc converters. the enmod system?s basic building blocks are the miniham passive harmonic attenuation module, the farm3 autoranging ac-dc front-end module (figure 9) and a discrete emi filter. the enmod system provides transient/surge immunity, harmonic current attenuation and emi filtering, in addition to all of the power switching and control circuitry necessary for autoranging rectification, inru sh current limiting, and overvoltage protection. converter enable and status functions for orderly power up/down control or sequencing are also provided. to complete the ac front-end configurati on, the user only needs to add hold-up capacitors, a simple emi filter, and a few discrete components (see fig. 1a) . functional description (farm3, see figures 9 & 10) power-up sequence. upon application of input power, the hold-up capacitors begin to charge. the thermistor limits the charge current, and the exponential time constant is determined by the hold-up capacitor value and the thermistor cold resistance. the slope (dv/dt) of the capacitor voltage versus time approaches zero as the capacitors become charged to the peak of the ac line voltage. the switch that bypasses the inrush limiting ptc (positive temperature coefficient) thermistor is open when power is applied, as is the switch that engages the strap for voltage doubling. in addition, the converter modules are disabled via the enable (en) line, and bus- ok (bok) is high. if the bus voltage is less than 200 v as the slope nears zero, the voltage doubler is activated, and the bus voltage climbs exponentially to twice the peak line voltage. if the bus voltage is greater than 200 v, the doubler is not activated. if the bus voltage is greater than 235 v as the slope approaches zero, the inrush limiting thermistor is bypassed. below 235 v, it is not bypassed. the converters are enabled ~150 milliseconds after the thermistor bypass switch is closed. bus-ok is asserted after an additional ~150 millisecond delay to allow the converter outputs to settle within specification. power-down sequence. when input power is turned off or fails, the following sequence occurs as the bus voltage decays: bus-ok is deasserted when the bus voltage falls below 210 vdc. the converters are disabled when the bus voltage falls below 190 vdc. if power is reapplied after the converters are disabled, the entire power-up sequence is repeated. if a momentary power interruption occurs and power is reestablished before the bus reaches the disable threshold, the power-up sequence is not repeated, i.e., the power conversion system ?rides through? the momentary interruption. application note microcontroller n l ptc thermistor +out ?out strap en bok strap sr emi filter emi gnd 400 300 200 100 0 90?32 v ac line output bus (vdc) strap ptc thermistor bypass converter enable bus ok ~150 ms power up power down 4.1 1.1 2.1 3.1 5.1 2.2 1.2 ~150 ms figure 9 functional block diagram: farm3 module figure 10 timing diagram: power-up/down sequence 1.1 2.1 3.1 4.1 5.1 1.2 2.2
vicor corp. tel: 800-735-6200, 978-470-2900 fax: 978-475-6715 enmods system: farm3 and miniham rev. 2.9 page 8 of 13 set your site on vicor at vicorpower.com application note (cont.) off-line power supply configuration the enmod system maintains the dc output bus voltage between 250 and 370 vdc over the entire input voltage range, which is compatible with all vicor 300 v input converters. autoranging automatically switches to the proper bridge or doubler mode at startup depending on the input voltage, eliminating the possibility of damage due to improper line connection. the enmod system is rated at 575 w output power. these modules can serve as the ac front-end for any number and combination of compatible converters as long as the maximum power rating is not exceeded. farm3 module pin descriptions (see figures 1a, 18a and 18b) strap (st) pin. in addition to input and output power pin connections, it is necessary to connect the strap pin to the center junction of the series hold-up capacitors (c1, c2) for proper (autoranging) operation. varistors v1 and v2 provide capacitor protection. the bleeder resistors (r1, r2) discharge the hold-up capacitors when power is switched off. capacitors c7 and c8 are recommended if the hold-up capacitors are located more than 3 inches (75mm) from the output pins. enable (en) pin. the enable pin must be connected to the pc or gate-in pin of all converter modules to disable the c onverters during power-up. otherwise, the c onverters would attempt to start while the hold-up capacitors are being charged through the current limiting thermistor, prev enting the bus voltage from reaching the thermistor bypass threshold, thus disabling the power supply. the enable output (the drain of an n channel mosfet) is internally pulled up to 15 v through a 150 k resistor. (see figure 11) a signal diode should be placed close to and in series with the pc or (gate-in) pin of each converter to eliminate the possibility of control interference between converters. the enable pin switches to the high state (15 v) with respect to the sr pin to turn on the converters after the power-up inrush is over. the enable function also provides input overvoltage protection for the converters by turning off the converters if the dc bus voltage exceeds 400 vdc. the thermistor bypass switch opens if this condition occurs, placing the thermistor in series with the input voltage, reducing the bus voltage to a safe level while limiting input current in case the varistors conduct. the thermistor bypass switch also opens if a fault or overload reduces the bus voltage to less than 180 vdc. (see figure 9) caution: there is no input to output isolation in the enmods, hence the Cout of the enmods and thus the Cin of the downstream dc-dc converter(s) are at a high potential. if it is necessary to provide an external enable / disab le function by controlling the dc-dc converters pc pin (referenced to the Cin) of the converter an opto-isolator or isolated relay should be employed. bus-ok (bok) pin. (see figure 12) the bus-ok pin is intended to provide early-warning power fail information and is also referenced to the sr pin. caution: there is no input to output isolation in the enmods. it is necessary to monitor bus-ok via an optoisolator if it is to be used on the secondary (output) side of the converters. a line isolation transformer should be used when performing scope measurements. scope probes should never be applied simultaneously to the input and output as this will destroy the unit. l, n pins. line and neutral input. +, C pins. positive and negative outputs. sr pin. signal return for bok and en outputs. miniham module pin (see figures 1a, 18a, and 18b) filter (see figure 1b) the input emi filter consists of differential and common mode chokes,y? rated capacitors (line-ground) and x? rated capacitors (line-line). this filter configuration provides sufficient common mode and differential mode insertion loss in the frequency range between 100 khz and 30 mhz to comply with the level b conducted emissions limit, as illustrated in figures 8a thru 8c .
vicor corp. tel: 800-735-6200, 978-470-2900 fax: 978-475-6715 enmods system: farm3 and miniham rev. 2.9 page 9 of 13 set your site on vicor at vicorpower.com operating power (w) 0 5 10 15 20 25 3 0 3 5 40 500 250 * power fail warning time (ms) 2,200 f 1,600 f 1, 3 00 f * 1,100 f 8 20 f 6 8 0 f figure 13 power fail warning time vs. operating power and total bus capacitance, series combination of c1, c2 (see figure 1a) operating power (w) ride-through time (ms) 0 10 20 30 40 50 60 70 80 90 100 90 vac 115 vac 500 250 application note (cont.) n emi gnd sr l + bok st en micro- controller 15 vdc 2 +5 vdc secondary referenced farm3 figure 12 bus ok (bok) isolated power status indicator +in pc (gate in) pr (gate out) ?in n emi gnd sr l + b ok st en ? 150 k 15 vdc vicor dc-dc converter micro- controller farm3 250 figure 11 enable (en) function figure 14 ride-through time vs. operating power hold-up capacitors hold-up capacitor values shoul d be determined according to output bus voltage ripple, power fail hold-up time, and ride-through time (see figure 15) . many applications require the power supply to maintain output regulation during a momentary power failure of specified duration, i.e., the converters must hold-up or ride through such an event while maintaining undisturbed output voltage regulation. similarly, many of these same systems require notification of an impending power failure in order to allow time to perform an orderly shutdown. the energy stored on a capacitor which has been charged to voltage v is: = 1/2(cv 2 )(1) where: = stored energy c = capacitance v = voltage across the capacitor energy is given up by the capacitors as they are discharged by the converters. the energy expended (the pow er-time product) is: = p t = c(v 1 2 ?v 2 2 ) / 2 (2) where: p = operating power t = discharge interval v 1 = capacitor voltage at the beginning of t v 2 = capacitor voltage at the end of t rearranging equation 2 to solve for the required capacitance: c = 2p t / (v 1 2 ?v 2 2 )(3)
vicor corp. tel: 800-735-6200, 978-470-2900 fax: 978-475-6715 enmods system: farm3 and miniham rev. 2.9 page 10 of 13 set your site on vicor at vicorpower.com output voltage ripple rejection (db) 40 45 50 55 60 65 70 75 80 50 30 15 5 2 figure 17 converter ripple rejection vs. output voltage (typical) operating power (w) p-p ripple voltage (vac) 0 5 10 15 20 25 3 0 500 250 * 2,200 f 1,600 f 1, 3 00 f * 1,100 f 8 20 f 6 8 0 f figure 16 ripple voltage vs. operating power and bus capacitance, series combination of c1, c2 (see figure 1a) figure 15 hold-up time application note (cont.) 205 v 10 v power f a il power f a il w a rning b us ok converter s h u t down hold- u p time 254 v ride-thro u gh time ripple (v p-p) ? ?
vicor corp. tel: 800-735-6200, 978-470-2900 fax: 978-475-6715 enmods system: farm3 and miniham rev. 2.9 page 11 of 13 set your site on vicor at vicorpower.com example in this example, the output required from the dc-dc converter at the point of load is 12 vdc at 320 w. therefore, the output power from the enmods would be 375 w (assuming a converter efficiency of 85%). the desired hold-up time is 9 ms over an input range of 90 to 264 vac. determining required capacitance for power fail warning. figure 13 is used to determine capacitance for a given power fail warning time and power level, and shows that the total bus capacitance should be at least 820 f. since two capacitors are used in series, each capacitor should be at least 1,640 f. note that warning time is not dependent on line voltage. a hold-up capacitor calculator is available on the vicor website, at vicorpower.com/hubcalc . determining ride-through time. figure 14 illustrates ride-through time as a function of line voltage and output power, and shows that at a nominal line of 90 vac, ride- through would be 68 ms. rid e-through time is a function of line voltage. determining ripple voltage on the hold-up capacitors. figure 16 is used to determine ripple voltage as a function of operating power and bus capacitance, and shows that the ripple voltage across the hold-up capacitors will be 12 vp-p. determining the ripple on the output of the dc-dc converter. figure 17 is used to determine the ripple rejection of the dc-dc converter and indicates a ripple rejection of approximately 60 db for a 12 v output. since the ripple on the bus voltage is 12 vac and the ripple rejection of the converter is 60 db, the output ripple of the converter due to ripple on its input (primarily 120 hz) will be 12 m vp-p. a variety of hold-up capacitor assemblies (hubs) are available. please visit the vicor website at vicorpower.com/hub . for more information about designing an autoranging ac input power supply using the enmods and vicor dc-dc converter modules, contact vicor applications engineering at the nearest vicor technical support center, or send e-mail to apps@vicorpower.com. ? ? ? the power fail warning time ( t) is defined as the interval between bok and converter shutdown (en) as illustrated in figure 15 . the bus-ok and enable thresholds are 205 v and 190 v, respectively. a simplified relationship between power fail warning time, operating power, and bus capacitance is obtained by inserting these constants in equation (3): c = 2p t / (205 2 ? 190 2 ) c = 2p t / (5,925) it should be noted that the series combination (c1, c2, see figure 1a) requires each capacitor to be twice the calculated value, but the required voltage rating of each capacitor is reduced to 200 v. allowable ripple voltage on the bus (or ripple current in the capacitors) may define the capacitance requirement. consideration should be given to converter ripple rejection. equation 3 is again used to determine the required capacitance. in this case, v 1 and v 2 are the instantaneous values of bus voltage at the peaks and valleys (see figure 15) of the ripple, respectively. the capacitors must hold up the bus voltage for the time interval ( t) between peaks of the rectified line as given by: t = ( ? ) / 2 f (5) where: f = line frequency = rectifier conduction angle the approximate conduction angle is given by: = cos -1 ( v 2 /v 1 ) (6) another consideration in hold-up capacitor selection is their ripple current rating. the capacitors? rating must be higher than the maximum operating ripple current. the approximate operating ripple current (rms) is given by: i rms = 2p/vac (7) where: p = total output power vac = operating line voltage calculated values of bus capacitance for various hold-up time, ride-through time, and ripple voltage requirements are given as a function of operating power level in figures 13, 14, and 16 , respectively. application note (cont.)
vicor corp. tel: 800-735-6200, 978-470-2900 fax: 978-475-6715 enmods system: farm3 and miniham rev. 2.9 page 12 of 13 set your site on vicor at vicorpower.com (2x) full r (6x) (6x) (ref.) 0.10 2,5 2.000 50, 8 0 1. 3 0 33 ,0 2.2 8 57,9 2.20 55,9 0.1 3 0 3 , 3 0 0.10 2,5 0.49 12,4 0.65 16,5 0.06 1,5 r( 3 x) x 45? chamfer u s e a 4-40 s crew (6x) to r qu e to: 5 in-l bs 0.57 n-m (2x) 0.01 0. 3 5 8 , 8 0.20 ** 5,1 0.12 * 3 ,1 dia,(7x) 0.150 3 , 8 1 (ref) dia,(2x) 0.0 8 0 2,0 3 4 3 1 9 8 2 76 5 0.2 3 5, 8 0.400 10,16 1.400 3 5,56 1.000 25,40 0.700 17,7 8 2.20 55,9 1.76 44,7 0.54 1 3 ,7 0.4 3 10,9 pin s tyle 2&n (long pin) 0.62 15,7 pin s tyle 1& s ( s hort pin) (9x) (9x) (all marking s thi s s urface) aluminum ba s eplate 0.50 0.02 12,7 0,5 * s tyle 1 bas epl a te only ** s tyle 2 & 3 bas epl a te s *** re s erved for vicor a cce ss orie s not for mounting pin center line s tyle 2 & 3 bas epl a te s only (4x) *** 0. 3 00 0.015 7,62 0, 38 0. 3 00 0.015 7,62 0, 38 1.900 4 8 ,26 pin c l c l s lotted thre a ded 4-40 unc-2b (6x) thr u hole # 3 0 drill thr u (6x) (0.12 8 5) 0.1 3 3 , 3 full r (6x) (6x) 0.195 4,95 1.400* 35,56 1.000* 25,40 0.700* 17,78 0.400* 10,16 1.790 45,47 0.06 1,5 r (4x) 0.158 4,01 5 6 7 8 9 12 34 0.003 0,08 * denotes tol = pcb thickness 0.062 0.010 1,57 0,25 pin style 1 0.094 0.003 2,39 0,08 inboard solder mount 0.43 10,9 0.53 13,5 1.900* 48.26 1.900* 48,26 1.584* 40,23 0.164 0.003 4,16 0,08 pin style 2 0.094 0.003 2,39 0,08 onboard solder mount 0.164 0.003 4,16 0,08 plated thru hole dia (7x) (2x) note: pin styles s & n require use of modumate interconnection socketing systems. see surfmate or inmate design guides for pcb specifications. aluminum baseplate all markings this surface farm3 miniham pin no. function label function label 1 neutral n neutral /+ in n /+ 2 emi gnd nc nc 3 signal return sr nc nc 4 line l line /? in l /? 5 ?out ? line /? out l /? 6 enable en nc nc 7 strap st nc nc 8 bus ok bok nc nc 9 +out + neutral /+ out n /+ mechanical drawings figure 18a mechanical diagram figure 18b pcb mounting specifications
vicor corp. tel: 800-735-6200, 978-470-2900 fax: 978-475-6715 enmods system: farm3 and miniham rev. 2.9 6/10 set your site on vicor at vicorpower.com vicor corporation 25 frontage road andover, ma, usa 01810 tel: 800-735-6200 fax: 978-475-6715 email customer service: custserv@vicorpower.com technical support: apps@vicorpower.com vicors comprehensive line of power solutions includes high density ac-dc and dc-dc modules and accessory components, fully configurable ac-dc and dc-dc power supplies, and complete custom power systems. information furnished by vicor is believed to be accurate and reliable. however, no responsibility is assumed by vicor for its use. vicor components are not designed to be used in applications, such as life support systems, wherein a failure or malfunction could result in injury or death. all sales are subject to vicor?s terms and conditions of sale, which are available upon request. specifications are subject to change without notice. intellectual property notice vicor and its subsidiaries own intellectual property (including issued u.s. and foreign patents and pending patent applications) relating to the products described in this data sheet. interested parties should contact vicor's intellectual property department. warranty vicor products are guaranteed for two years from date of shipment against defects in material or workmanship when in normal use and service. this warranty does not extend to products subjected to misuse, accident, or improper application or maintenance. vicor shall not be liable for collateral or consequential damage. this warranty is extended to the original purchaser only. except for the foregoing express warranty, vicor makes no warranty, express or implied, including, but not limited to, the warranty of merchantability or fitness for a particular purpose. vicor will repair or replace defective products in accordance with its own best judgement. for service under this warranty, the buyer must contact vicor to obtain a return material authorization (rma) number and shipping instructions. products returned without prior authorization will be returned to the buyer. the buyer will pay all charges incurred in returning the product to the factory. vicor will pay all reshipment charges if the product was defective within the terms of this warranty. information published by vicor has been carefully checked and is believed to be accurate; however, no responsibility is assumed for inaccuracies. vicor reserves the right to make changes to any products without further notice to improve reliabilit y, function, or design. vicor does not assume any liability arising out of the application or use of any product or circuit; neith er does it convey any license under its patent rights nor the rights of others. vicor general policy does not recommend the use of its components in life support applications wherein a failure or malfunction may directly threaten life or injury. per vicor terms and conditions of sale, the user of vicor components in life support applications assumes all risks of such use and indemnifies vicor against all damages.

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