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mmu 0102, mma 0204, mmb 0207 - professional www.vishay.com vishay beyschlag revision: 15-may-13 1 document number: 28713 for technical questions, contact: melf@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 professional thin film melf resistors mmu 0102, mma 0204 and mmb 0207 professional thin film melf resistors are the perfect choice for most fields of modern professional electr onics where reliability and stability is of major concern. the typical applications in the fields of automotive, telecommunication and medical equipment reflect the outstand ing level of proven reliability. features ? approved according to en 140401-803 ? aec-q200 qualified ? advanced metal film technology ? excellent overall stability: exceeds class 0.25 ? matte sn termination on ni barrier layer ? material categorization: ? for definitions of co mpliance please see www.vishay.com/doc?99912 applications ? automotive ? telecommunication ? industrial ? medical equipment note (1) please refer to application information below. application information the power dissipation on the re sistor generates a tempe rature rise against the local ambi ent, depending on the heat flow support of the printed-circuit bo ard (thermal resistance). the ra ted dissipation applies only if the permitted film temperature is not exceeded. furthermore, a high level of ambient temperature or of po wer dissipation may raise the temperature of the solder joint, hence special solder alloys or board materials may be required to maintain the reliability of the assembly. these resistors do not feature a limited lifetime when operated within the permissibl e limits. however, re sistance value drift increasing over operating time may result in exceeding a limit acceptable to the specific application, thereby establishing a functional lifetime. at the maxi mum permissible film tempe rature of 155 c the useful lifetime is specified for 8000 h. the designer may estimate the performance of the particular resi stor application or set certain lo ad and temperature limits in orde r to maintain a desired stability. technical specifications description mmu 0102 mma 0204 mmb 0207 din size 0102 0204 0207 metric cecc size rc 2211m rc 3715m rc 6123m resistance range 0.22 ? to 2.21 m ? ; 0 ?? 0.22 ? to 10 m ? ; 0 ?? 0.1 ? to 15 m ? ; 0 ? resistance tolerance ? 5 %; 2 %; 1 %; 0.5 % ? 5 %; 1 %; 0.5 % ? 5 %; 2 %; 1 %; 0.5 % temperature coefficient 50 ppm/k; 25 ppm/k 100 ppm/k; 50 ppm/k; 25 ppm/k rated dissipation, p 70 (1) 0.3 w 0.4 w 1.0 w operating voltage, u max. ac/dc 150 v 200 v 300 v operating temperature range - 55 c to 155 c - 55 c to 125 c - 55 c to 125 c permissible voltage against ambient (insulation): 1 min, u ins 200 v 300 v 500 v continuous 75 v 75 v 75 v failure rate: fit observed ?? 0.1 x 10 ? 9 /h
mmu 0102, mma 0204, mmb 0207 - professional www.vishay.com vishay beyschlag revision: 15-may-13 2 document number: 28713 for technical questions, contact: melf@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 maximum resistance change at rated dissipation operating mode standard power rated dissipation, p 70 mmu 0102 0.2 w 0.3 w mma 0204 0.25 w 0.4 w mmb 0207 0.4 w 1.0 w operating temperature range - 55 c to 125 c - 55 c to 155 c permissible film temperature, ? f max. 125 c 155 c max. resistance change at p 70 for resistance range, ? r / r after: mmu 0102 0.22 ? to 221 k ? 0.22 ? to 221 k ? mma 0204 0.22 ? to 332 k ? 0.22 ? to 332 k ? mmb 0207 0.22 ? to 1 m ? 0.22 ? to 1 m ? 1000 h ???? 0.15 % ? 0.25 % 8000 h ?? 0.3 % ? 0.5 % 225 000 h ?? 1.0 % - temperature coefficient and resistance range type tcr tolerance resistance e-series mmu 0102 50 ppm/k 5 % 0.22 ? to 0.91 ? e24 2 % 1 ? to 9.1 ? e24 1 % 10 ? to 2.21 m ? e24, e96 0.5 % 10 ? to 221 k ? e24, e96 25 ppm/k 1 % 10 ? to 221 k ? e24, e96 0.5 % 10 ? to 221 k ? e24, e96 jumper - ? 10 mw; i max. = 2 a - mmu 0102 50 ppm/k 5 % 0.22 ? to 0.91 ? e24 1 % 1 ? to 10 m ? e24 0.5 % 10 ? to 2.21 m ? e24, e96 25 ppm/k 1 % 10 ? to 511 k ? e24, e96 0.5 % 10 ? to 511 k ? e24, e96 jumper - ? 10 mw; i max. = 3 a - mmu 0102 100 ppm/k 5 % 0.1 ? to 0.2 ? e24 50 ppm/k 5 % 0.22 ? to 0.91 ? e24 2 % 0.2 ? to 0.91 ? e24 1 % 1 ? to 15 m ? e24 25 ppm/k 0.5 % 10 ? to 1 m ? e24 jumper - ? 10 m ? ; i max. = 5 a -
mmu 0102, mma 0204, mmb 0207 - professional www.vishay.com vishay beyschlag revision: 15-may-13 3 document number: 28713 for technical questions, contact: melf@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 note ? products can be ordered using either the part number or the product description. packaging type code quantity carrier tape width pitch reel diameter mmu 0102 b3 = bl 3000 antistatic blis ter tape acc. iec 60286-3 type ii 8 mm 4 mm 180 mm/7" b0 10 000 330 mm/13" m8 8000 bulk case acc. iec 60286-6 -- - mma 0204 b3 = bl 3000 antistatic blis ter tape acc. iec 60286-3 type ii 8 mm 4 mm 180 mm/7" b0 10 000 330 mm/13" m3 3000 bulk case acc. iec 60286-6 -- - mmb 0207 b2 2000 antistatic blis ter tape acc. iec 60286-3 type ii 12 mm 4 mm 180 mm/7" b7 7000 330 mm/13" part number and product description part number: mmb02070d5620db200 ? part number: mmb02070z0000zb200 type/size version tcr resistance tolerance packaging mmu0102 mma0204 mmb0207 0 = en 140401-803, version a d = 25 ppm/k c = 50 ppm/k b = 100 ppm/k z = jumper 3 digit value 1 digit multiplier multiplier 7 = *10 -3 8 = *10 -2 9 = *10 -1 0 = *10 0 1 = *10 1 2 = *10 2 3 = *10 3 4 = *10 4 5 = *10 5 0000 = jumper d = 0.5 % f = 1 % g = 2 % j = 5 % z = jumper b3 b0 b2 b7 m3 m8 product description: mmb 0207-25 0.5% b2 562r ? product description: mmb 0207 b2 0r0 mmb 0207 -25 0.5 % b2 562r mma 0207 - - b2 0r0 type size tcr tolerance packaging resistance mmu mma mmb 0102 0204 0207 25 ppm/k 50 ppm/k 100 ppm/k 0.5 % 1 % 2 % 5 % bl b0 b2 b7 m3 m8 562r = 562 ? 0r0 = jumper mb02070z0 m 00zb2 00 0 mb02070d5 m 20db2 00 6
mmu 0102, mma 0204, mmb 0207 - professional www.vishay.com vishay beyschlag revision: 15-may-13 4 document number: 28713 for technical questions, contact: melf@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 description production is strictly controll ed and follows an extensive set of instructions establishe d for reproducibility. a homogeneous film of metal al loy is deposited on a high grade ceramic body (al 2 o 3 ) and conditioned to achieve the desired temperature coefficient. nickel plated steel termination caps are firmly pre ssed on the metallised rods. a special laser is used to achieve the target value by smoothly cutting a helical groove in the resistive layer without damaging the ceramics. the resistor elements are covered by a protective coatin g designed for electrical, mechanical and climatic protection. the terminations receive a final pure tin on nickel plating. five colour code rings designate the resistan ce value and tolerance in accordance with iec 60062 (3) . the result of the determined production is verified by an extensive testing procedure performed on 100 % of the individual resistors. only accepted products are laid directly into the blister tape in accordance with iec 60286-3, type ii (3) or bulk case in accordance with iec 60286-6 (3) . assembly tthe resistors are suitable for processing on automatic smd assembly systems. they are suitable for automatic soldering using wave, reflow or vapour phase as shown in iec 61760-1 (3) . solderability is specified for 2 years after production or requalificat ion, however, excellent solderability is proven after extended storage in excess of 10 years. the permitted storage time is 20 years. the resistors are completely lead (pb)-free, the pure tin plating provides compatibility with lead (pb)-free soldering processes. the immunity of the plating against tin whisker growth has been proven under extensive testing. the encapsulation is resistant to all cleaning solvents commonly used in the electro nics industry, including alcohols, esters and aqueous so lutions. the suitability of conformal coatings, if applie d, shall be qualified by appropriate means to ensure the long-term stability of the whole system. all products comply with the gadsl (1) and the cefic-eeca-eicta (2) list of legal restrictions on hazardous substances. this includes full compliance with the following directives: ? 2000/53/ec end of vehicle life directive (elv) and annex ii (elv ii) ? 2011/65/eu restriction of the use of hazardous substances directive (rohs) ? 2002/96/ec waste electrical and electronic equipment directive (weee) approvals the resistors are approved wi thin the iecq-cecc quality assessment system for electronic components to the detail specification en 140401-803 which refers to en 60115-1 , en 140400 and the variety of envi ronmental test procedures of the iec 60068 (3) series. conformity is attested by the use of the cecc logo ( ) as the mark of conformity on the package label. vishay beyschlag has achieved approval of manufacturer in accordance with iec qc 001002-3, clause 2 . the release certificate for technology approval schedule in accordance with cecc 240001 based on iec qc 001002-3, clause 6 is granted for the vishay beyschlag ma nufacturing process. ? the resistors are qualified according to aec-q200. related products for products with precision sp ecification see the datasheet: ? precision thin film melf resistors ? ( www.vishay.com/doc?28714 ) ? high precision thin film melf resistors ? ( www.vishay.com/doc?28715 ) resistors are available with established reliability in accordance with en 140 401-803 version e . please refer to datasheet melf resistors with established reliability ( www.vishay.com/doc?28707 ). ? notes (1) global automotive declarable substance list, see www.gadsl.org . (2) cefic (european chemical industry council), eeca (european electr onic component manufacturers as sociation), eict a (european tra de organisation representing the information and communications technology and consumer electronics), see www.eicta.org ? issues ? environment policy ? chemicals ? chemicals for electronics. (3) the quoted iec standards are also released as en st andards with the same number and identical contents.
mmu 0102, mma 0204, mmb 0207 - professional www.vishay.com vishay beyschlag revision: 15-may-13 5 document number: 28713 for technical questions, contact: melf@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 functional performance c 100 150 0 - 50 0 50 0.5 1 w 70 power dissipation p ? ambient temperature amb mmb 0207 mmu 0102 mma 0204 derating - standard operation c 100 150 0 - 50 0 50 0.5 1 w 70 power dissipation p mmb 0207 mmu 0102 mma 0204 (1) amb ? ambient temperature derating - power operation note (1) specified power rating requires dedicated heat sink pads 100 s 1 ms 10 ms 1 1 s 10 s 0.1 w 10 s 100 ms 100 10 mmb 0207 mmu 0102 mma 0204 pulse load p max. single pulse maximum pulse load, single pulse; applicable if p 0 and n 1000 and u u max. ; for permissible resistance change equivalent to 8000 h operation pulse duration t i
mmu 0102, mma 0204, mmb 0207 - professional www.vishay.com vishay beyschlag revision: 15-may-13 6 document number: 28713 for technical questions, contact: melf@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 100 s 1 ms 10 ms 1 1 s 10 s 0.1 w 10 s 100 ms 10 100 mmb 0207 mmu 0102 mma 0204 continuous pulse maximum pulse load, continuous pulses; applicable if p p ( ? amb ) and u u max. ; for permissible resistance change equivalent to 8000 h operation continuous pulse load p max. pulse duration t i 100 s 1 ms 10 ms 1 s 10 s s m 0 0 1 s 0 1 100 v 1 kv pulse duration t i pulse voltage maximum pulse voltage, single and continuous pulses; applicable if p p max. ; for permissible resistance change equivalent to 8000 h operation pulse voltage u max. mmb 0207 mmu 0102 mma 0204 100 v 1 kv 10 v 10 kv pulse voltage u 100 1 k 10 k 100 k 1 m 10 10 m alue r resistance v 1.2/50 pulse pulse load rating in accordance with iec 60 115-1, 4.27; 1.2 s/50 s; 5 pulses at 12 s intervals; for permissible resistance change 0.5 % mmb 0207 mmu 0102 mma 0204
mmu 0102, mma 0204, mmb 0207 - professional www.vishay.com vishay beyschlag revision: 15-may-13 7 document number: 28713 for technical questions, contact: melf@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 100 1 k 10 k 100 v 100 k 1 m 1 kv 10 v 10 kv 10 10 m resistance value r 10/700 pulse pulse load rating in accordance with iec 60115-1, 4.27; 10 s/700 s; 10 pulses at 1 minute intervals; for permissible resistance change 0.5 % pulse voltage u mmb 0207 mmu 0102 mma 0204 current noise a 1 0.01 100 0.1 1 v/v resistance value r current noise - a 1 accordance with iec 60195 1 k 10 k 100 k 1 m 10 m mmb 0207 mmu 0102 mma 0204 0.1 0.3 1 ghz 3 0.5 1.0 1.5 1.8 i z i/ r frequency f rf - behaviour | z |/ r for 49.9 melf resistors mmb 0207 mmu 0102 mma 0204
mmu 0102, mma 0204, mmb 0207 - professional www.vishay.com vishay beyschlag revision: 15-may-13 8 document number: 28713 for technical questions, contact: melf@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 tests and requirements all tests are carried out in accordance with the following specifications: en 60 115-1, generic specification en 140 400, sectional specification en 140 401-803, detail specification the components are approved in accordance with the iecq-cecc-system, where appl icable. for the full test schedule refer to the docume nts listed above. the testing also covers most of the requirements specified by eia/is 703 and jis-c-5202. the tests are carried out in accordance with iec 60068 and under standard atmospheric conditions in accordance with iec 60068-1, 5.3. climatic category lct/uct/56 (rated temperature range: lower category temperature, upper category temperature; damp heat , long term, 56 days) is valid. unless otherwise specified th e following values apply: temperature: 15 c to 35 c relative humidity: 45 % to 75 % air pressure: 86 kpa to 106 kpa (860 mbar to 1060 mbar). the components are mounted for testing on printed-circuit boards in accordance with en 140400, 2.3.3, unless otherwise specified. the requirements stated in the test procedures and requirements table are based on the required tests and permitted limits of en 140401-803. however, some additional tests and a numbe r of improvements against those minimum requirements have been included. the stated requirements for long-term tests are typically fulfilled with a statistical safety of at least + 5 s. x test procedures and requirements en 60 115-1 clause iec 60 068-2 test method test procedure requirements permissible change ( ? r ) stability for product types: stability class 0.25 or better stability class 0.5 or better stability class 1 or better stability class 2 or better mmu 0102 10 ? to 221 k ? 1 ? to < 10 ? < 1 ? > 221 k ? mma 0204 10 ? to 332 k ? 1 ? to < 10 ? < 1 ? > 332 k ? mmb 0207 10 ? to 1 m ? 1 ? to < 10 ? < 1 ? > 1 m ? 4.5 - resistance - 1 % r ; ? 0.5 % r 2 % r ; ? 1 % r 5 % r 1 % r 4.8.4.2 - temperature coefficient at (20/- 55/20) c and (20/125/20) c 50 ppm/k, 25 ppm/k 4.25.1 - endurance at 70 c: standard operation mode u = ??? u max. ; 1.5 h on; 0.5 h off; 70 c; 1000 h (0.15 % r + 10 m ? ) (0.5 % r + 10 m ? ) 70 c; 8000 h (0.3 % r + 10 m ? ) (1 % r + 10 m ? ) endurance at 70 c: power operation mode u = ??? u max. ; 1.5 h on; 0.5 h off; 70 c; 1000 h (0.25 % r + 10 m ? ) (0.5 % r + 10 m ? ) 70 c; 8000 h (0.5 % r + 10 m ? ) (1 % r + 10 m ? ) 4.25.3 ? endurance at upper category temperature 125 c; 1000 h ? (0.15 % r + 5 m ? ) ? (0.25 % r + 5 m ? ) ? (0.5 % r + 5 m ? ) ? (1 % r + 5 m ? ) 155 c; 1000 h ? (0.3 % r + 5 m ? ) ? (0.5 % r + 5 m ? ) ? (0.1 % r + 5 m ? ) ? (02 % r + 5 m ? ) 4.24 78 (cab) damp heat, steady state (40 2) c; 56 days; (93 3) % rh ? (0.15 % r + 10 m ? ) ? (0.5 % r + 10 m ? ) ? (0.1 % r + 10 m ? ) ? (1 % r + 10 m ? ) 4.39 67 (cy) damp heat, steady state, accelerated (85 2) ?? c; (85 5) % rh; u = u = 0.3 x u max. ; 1000 h ? (0.25 % r + 10 m ? ) ? (0.5 % r + 10 m ? ) ? (1 % r + 10 m ? ) ? (2 % r + 10 m ? ) p 70 x r p 70 x r 0.3 x p 70 x r
mmu 0102, mma 0204, mmb 0207 - professional www.vishay.com vishay beyschlag revision: 15-may-13 9 document number: 28713 for technical questions, contact: melf@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 4.23 climatic sequence: (0.15 % r + 10 m ? ) (0.5 % r + 10 m ? ) (1 % r + 10 m ? )l (1 % r + 10 m ? ) 4.23.2 2 (bb) dry heat uct; 16 h 4.23.3 30 (db) damp heat, cyclic 55 c; 24 h; ?? 90 % rh; 1 cycle 4.23.4 1 (ab) cold lct; 2 h 4.23.5 13 (m) low air pressure 8.5 kpa; 2 h; (25 10) c 4.23.6 30 (db) damp heat, cyclic 55 c; 24 h; ?? ? 90 % rh; 5 cycles 4.23.7 - dc load u = ??? u max. ; 1 min. lct = - 55 c; uct = 155 c - 1 (ab) cold - 55 c; 2 h ? (0.05 % r + 5 m ? ) ? (0.1 % r + 5 m ? ) 4.19 14 (na) rapid change of temperature 30 min at lct; 30 min at uct; lct = - 55 c; uct = 125 c 5 cycles ? (0.05 % r + 10 m ? ) ? (0.1 % r + 10 m ? ) 1000 cycles ? (0.15 % r + 10 m ? ) ? (0.25 % r + 10 m ? ) lct = - 55 c; uct = 155 c 1000 cycles ? (0.25 % r + 10 m ? ) ? (0.5 % r + 10 m ? ) 4.13 - short time overload: standard operation mode u = 2.5 x ? ?? 2 x u max. ; 5 s ? (0.03 % r + 5 m ? ) ? (0.15 % r + 5 m ? ) short time overload: power operation mode ? (0.05 % r + 5 m ? ) ? (0.15 % r + 5 m ? ) 4.27 - single pulse high voltage overload: standard operation mode severity no. 4: u = 2.5 x ? ?? 2 x u max. ; 10 pulses 10 s/700 s (0.25 % r + 5 m ? ) single pulse high voltage overload: power operation mode (0.5 % r + 5 m ? ) test procedures and requirements en 60 115-1 clause iec 60 068-2 test method test procedure requirements permissible change ( ? r ) stability for product types: stability class 0.25 or better stability class 0.5 or better stability class 1 or better stability class 2 or better mmu 0102 10 ? to 221 k ? 1 ? to < 10 ? < 1 ? > 221 k ? mma 0204 10 ? to 332 k ? 1 ? to < 10 ? < 1 ? > 332 k ? mmb 0207 10 ? to 1 m ? 1 ? to < 10 ? < 1 ? > 1 m ? p 70 x r p 70 x r p 70 x r
mmu 0102, mma 0204, mmb 0207 - professional www.vishay.com vishay beyschlag revision: 15-may-13 10 document number: 28713 for technical questions, contact: melf@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 notes (1) the tests are performed at standard operation mode conditions. (2) the quoted iec standards are also released as en st andards with the same number and identical contents. (3) special requirements appl y to micro-melf, mmu 0102: ? ? r < 100 ?? (0.25 % r + 10 m ? ) ? ? 100 ? ? r ? 221 k ?? 0.1 % r ? ? 221 k ? < r : 0.25 % r 4.37 - periodic electric overload; standard operation mode u = ?? 2 x u max. 0.1 s on; 2.5 s off; 1000 cycles (0.5 % r + 5 m ? ) periodic electric overload; power operation mode (1 % r + 5 m ? ) 4.22 6 (fc) vibration endurance by sweeping; 10 hz to 2000 hz; no resonance; amplitude ?? 1.5 mm or ? 200 m/s 2 ; 7.5 h ? (0.05 % r + 5 m ? ) ? (0.1 % r + 5 m ? ) 4.40 - electrostatic discharge (human body model) iec 61340-3-1 (2) ; 3 pos. + 3 neg. discharges mmu 0102: 1.5 kv mma 0204: 2 kv mmb 0207: 4 kv (0.5 % r + 0.05 ? ) 4.17.2 58 (td) solderability solder bath method; snpb40; non-activated flux; (215 3) c; (3 0.3) s good tinning ( ? 95 % covered); no visible damage solder bath method; snag3cu0.5 or snag3.5; non-activated flux; (235 3) c; (2 0.2) s good tinning ( ? 95 % covered); no visible damage 4.18.2 58 (td) resistance to soldering heat solder bath method; (260 5) c; (10 1) s ? (0.05 % r + 10 m ? ) ? (0.1 % r + 10 m ? ) ? (0.25 % r + 10 m ? ) ? (0.25 % r + 10 m ? ) reflow method 2 (ir/forced gas convection); (260 5) c; (10 1) s ? (0.02 % r + 10 m ? ) ? (0.05 % r + 10 m ? ) ? (0.05 % r + 10 m ? ) ? (0.1 % r + 10 m ? ) 4.29 45 (xa) component solvent resistance isopropyl alcohol; 50 c; method 2 no visible damage 4.30 45 (xa) solvent resistance of marking isopropyl alcohol; 50 c; method 1, toothbrush marking legible; no visible damage 4.32 21 (ue 3 ) shear (adhesion) 45 n no visible damage 4.33 21 (ue 1 ) substrate bending depth 2 mm, 3 times no visible damage, no open circuit in bent position (0.05 % r + 10 m ? ) 4.7 - voltage proof u rms = u ins ; 60 s no flashover or breakdown 4.35 - flammability iec 60695-11-5, needle flame test; 10 s no burning after 30 s test procedures and requirements en 60 115-1 clause iec 60 068-2 test method test procedure requirements permissible change ( ? r ) stability for product types: stability class 0.25 or better stability class 0.5 or better stability class 1 or better stability class 2 or better mmu 0102 10 ? to 221 k ? 1 ? to < 10 ? < 1 ? > 221 k ? mma 0204 10 ? to 332 k ? 1 ? to < 10 ? < 1 ? > 332 k ? mmb 0207 10 ? to 1 m ? 1 ? to < 10 ? < 1 ? > 1 m ? 15 x p 70 x r
mmu 0102, mma 0204, mmb 0207 - professional www.vishay.com vishay beyschlag revision: 15-may-13 11 document number: 28713 for technical questions, contact: melf@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 dimensions note ? color code marking is a pplied according to iec 60062 (3) in four bands (e24 series ) or five bands (e96 or e192 series). each color band appears as a single solid line, voids are permissible if at least 2 / 3 of the band is visible from each radial angle of view. the last color band for tolerance is approximately 50 % wider than the ot her bands. an interrupted band between the 4 th and 5 th full band indicates tc25. pattern styles for melf resistors note ? the given solder pad dimensions reflect the considerations for board design and assembly as outlined e.g. in standards iec 611 88-5-x, or in publication ipc-7351. they do not guarante e any supposed thermal properti es, however, they will be found adequate for most g eneral applications. dimensions and mass type l (mm) d (mm) l 1 min. (mm) d 1 (mm) k (mm) mass (mg) mmu 0102 2.2 + 0/- 0.1 1.1 + 0/- 0.1 1.2 d + 0/- 0.1 0.4 0.05 8 mma 0204 3.6 + 0/- 0.2 1.4 + 0/- 0.1 1.8 d + 0/- 0.15 0.8 0.1 22 mmb 0207 5.8 + 0/- 0.15 2.2 + 0/- 0.2 3.2 d + 0/- 0.2 1.25 0.1 80 recommended solder pad dimensions type wave soldering reflow soldering g (mm) y (mm) x (mm) z (mm) g (mm) y (mm) x (mm) z (mm) mmu 0102 0.7 1.2 1.5 3.1 1.1 0.8 1.3 2.7 mma 0204 1.5 1.5 1.8 4.5 1.7 1.2 1.6 4.1 mmb 0207 2.8 2.1 2.6 7.0 3.2 1.7 2.4 6.6 l 1 k d 1 d l g x y z
mmu 0102, mma 0204, mmb 0207 - professional www.vishay.com vishay beyschlag revision: 15-may-13 12 document number: 28713 for technical questions, contact: melf@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 historical 12nc information ? the resistors had a 12-digit numeric code starting with 2312. ? the subsequent 4 digits in dicated the resistor type, specification and packaging; see the 12nc table. ? the remaining 4 digits indicated the resistance value: - the first 3 digits indica ted the resistance value. - the last digit indicated the resistance decade in accordance with the 12nc indicating resistance decade table. last digit of 12nc indi cating resistance decade historical 12nc the 12nc of a mmu 0102 resistor, value 47 k ? . and tcr 50 with 1 % tolerance, supplied in blister tape of 3000 units per reel is: 2312 165 14703. resistance decade last digit 0.1 ? to 0.999 ? 7 1 ? to 9.99 ? 8 10 ? to 99.9 ? 9 100 ? to 999.9 ? 1 1 k ? to 9.99 k ? 2 10 k ? to 99.9 k ? 3 100 k ? to 999 k ? 4 1 m ? to 9.99 m ? 5 10 m ? to 99.9 m ? 6 historical 12nc - resistor type and packaging description 2312 ... ..... blister tape on reel bulk case type tcr tol. bl 3000 units b0 10 000 units m8 8000 units mmu 0102 50 ppm/k 5 % 165 3.... 175 3.... 060 3.... 2 % 165 2.... 175 2.... 060 2.... 1 % 165 1.... 175 1.... 060 1.... 0.5 % 165 5.... 175 5.... 060 5.... 25 ppm/k 1 % 166 1.... 176 1.... 061 1.... 0.5 % 166 5.... 176 5.... 061 5.... jumper 165 90001 175 90001 060 90001 type tcr tol. bl 3000 units b0 10 000 units m3 3000 units mma 0204 50 ppm/k 5 % 155 3.... 145 3.... 040 3.... 1 % 155 1.... 145 1.... 040 1.... 0.5 % 155 5.... 145 5.... 040 5.... 25 ppm/k 1 % 156 1.... 146 1.... 041 1.... 0.5 % 156 5.... 146 5.... 041 5.... jumper 155 90001 145 90001 040 90001 type tcr tol. b2 2000 units b7 7000 units mmb 0207 100 ppm/k 5 % 195 3.... 185 3.... 50 ppm/k 5 % 195 3.... 185 3.... 2 % 195 2.... 185 2.... 1 % 195 1.... 185 1.... 25 ppm/k 0.5 % 196 5.... 186 5.... jumper 195 90001. 185 90001
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