metal glaze? high power density surface mount power resistor MRC series 1/2 wat in 1/8 wat package MRC1/2: 0.05 to 1.0 (contact factory for higher values) 150c maximum operatng temperature superior surge handling capability rohs compliant versions available ? 1/2 w att in 1/8 w att pac kage ? 1 w att in 1/2 w att pac kage (2010 f ootpr int) ? MRC1/2: 0.05 ? to 1.0 ? (contact f actor y f or higher v alues) ? 150c maxim um oper ating temper ature ? super ior surge handling capability metal glaz e ? thic k film element fired at 1000c to solid cer amic substr ate high temper ature dielectr ic coating 60/40 solder o v er nic k el barr ier en vironmental data MRC series metal glaz e tm high p o w er density surf ace mount p o w er resistor MRC applications: the MRC1/2 will dissipate 1/2 w att at 70c on a 1206 f ootpr int. the MRC is recommended f or applications where board real estate is a major concer n. due to high po w er density and super ior surge handling capability , it is also recommended as a direct replacement on e xisting board designs where standard 1206 resistors are marginal or f ailing. d o h t e m t s e t e g n a h c m u m i x a m s c i t s i r e t c a r a h c t emperature coef? cient as speci? ed mil-r-55342e p ar 4.7.9 (-55c + 125c) thermal shoc k (0.5% + 0.01?) mil-r-55342e p ar 4.7.3 (-65c + 150c , 5 cycles) lo w t emperature operation (0.25% + 0.01?) mil-r-55342e p ar 4.7.4 (-65c @ w or king v oltage) shor t time overload (1.0% + 0.01?) mil-r-55342e p ar 4.7.5 2.5 x pxr f or 5 seconds high t emperature exposure (0.5% + 0.01?) mil-r-55342e p ar 4.7.6 (+150c f or 100 hours) resistance to bonding exposure (0.25% + 0.01?) mil-r-55342e p ar 4.7.7 (re? o w soldered to board at 260c f or 10 seconds) solderability 95% minim um co v er age mil-std-202, method 208 (245c f or 5 seconds) moisture resistance (0.5% + 0.01?) mil-r-55342e p ar 4.7.8 (10 cycles , total 240 hours) lif e t est (1.0% + 0.01?) mil-r-55342e p ar 4.7.10 (2000 hours @ 70c inter mittent) t erminal adhesion strength (1% + 0.01?) no mechanical damage 1200 gram push from underside of mounted chip f or 60 seconds resistance to boar d bending (1% + 0.01?) no mechanical damage chip mounted in center of 90mm long board, de? ected 5mm so as to e x er t pull on chip contacts f or 10 seconds siz e code 1 industr y footprint irc t ype max. p o wer rating w orking v olta g e 2 max. v olta g e resistance rang e (ohms) 3 t olerance (%) 3 tcr (ppm/c) 3 pr oduct cata gor y c 1206 MRC1/2 1/2w @ 70c 200 400 0.1 to 0.99 1,2,5 100 lo w range 1.0 to 10k 1,2,5 50,100 standard 20 to 10k 0.25, 0.5 50,100 tight t oler ance electrical data resistors ma ke p ossibl e 01.16 general note tt electronics reserves the right to make changes in product specifcation without notice or liability. all information is subject to tt electronics own data and is considered accurate at time of going to print. ? tt electronics plc www.ttelectronicsresistors.com all pb-free parts comply with eu directve 2011/65/eu (rohs2)
metal glaze? high power density surface mount power resistor MRC series ? 4222 south staples street ? cor pus chr isti t e xas 78411 usa ? irc wire w ound and film t ec hnologies division t elephone: 361 992 7900 ? f acsimile: 361 992 3377 ? w ebsite: www .irctt.com MRC series metal glaz e tm high p o w er density surf ace mount p o w er resistor MRC ser ies issue apr il 2010 sheet 2 of 2 sample p ar t no. irc t ype (MRC 1/2) t emperature coef? cient 50 ppm, 100 ppm, 200 ppm resistance v alue (100? and g reater - first 3 signi? cant ? gures plus 4th digit m ultiplier) example: 100? = 1000, 1000? = 1001, 150,000? = 1503 (less than 100? - "r" is used to designate decimal) example: 51 ? = 51r0, 1? = 1r00, 0.25? = r250 t olerance (c = 0.25%, d = 0.5%, f = 1.0%, g = 2.0%, j = 5.0%) p ac ka ging code* (blk = bulk, 7 = 7" reel, 13 = 13" reel) rohs compliance lf = rohs compliant v ersion order ing data p o w er der ating cur v e repetitiv e surge cur v e MRC 1/2 1 1 0 1 0 0 1 0 0 0 0 . 0 0 0 1 0 . 001 0 . 0 1 0 . 1 1 surg e or pu l s e d u r a t i o n ( s econds) p e ak p o w e r ( watts) note: use f or repetitiv e pulses where the a v er age po w er dissipation is not to e xceed the component r ating at 70c . surge handling capacity f or lo w-repetitiv e surges ma y be significantly g reater than sho wn abo v e . contact f actor y f or recommendations . 0 5 1 0 7 5 2 100 60 0 a r f o % ted r e w o p ambient temperature (c) MRC1/2 100 1000 f 13 lf ? 4222 south staples street ? cor pus chr isti t e xas 78411 usa ? irc wire w ound and film t ec hnologies division t elephone: 361 992 7900 ? f acsimile: 361 992 3377 ? w ebsite: www .irctt.com MRC series metal glaz e tm high p o w er density surf ace mount p o w er resistor MRC ser ies issue apr il 2010 sheet 2 of 2 sample p ar t no. irc t ype (MRC 1/2) t emperature coef? cient 50 ppm, 100 ppm, 200 ppm resistance v alue (100? and g reater - first 3 signi? cant ? gures plus 4th digit m ultiplier) example: 100? = 1000, 1000? = 1001, 150,000? = 1503 (less than 100? - "r" is used to designate decimal) example: 51 ? = 51r0, 1? = 1r00, 0.25? = r250 t olerance (c = 0.25%, d = 0.5%, f = 1.0%, g = 2.0%, j = 5.0%) p ac ka ging code* (blk = bulk, 7 = 7" reel, 13 = 13" reel) rohs compliance lf = rohs compliant v ersion order ing data p o w er der ating cur v e repetitiv e surge cur v e MRC 1/2 1 1 0 1 0 0 1 0 0 0 0 . 0 0 0 1 0 . 001 0 . 0 1 0 . 1 1 surg e or pu l s e d u r a t i o n ( s econds) p e ak p o w e r ( watts) note: use f or repetitiv e pulses where the a v er age po w er dissipation is not to e xceed the component r ating at 70c . surge handling capacity f or lo w-repetitiv e surges ma y be significantly g reater than sho wn abo v e . contact f actor y f or recommendations . 0 5 1 0 7 5 2 100 60 0 a r f o % ted r e w o p ambient temperature (c) MRC1/2 100 1000 f 13 lf ma ke p ossibl e 01.16 general note tt electronics reserves the right to make changes in product specifcation without notice or liability. all information is subject to tt electronics own data and is considered accurate at time of going to print. ? tt electronics plc www.ttelectronicsresistors.com ph ysical data irc t ype siz e code industr y footprint actual siz e dimensions (inc hes and (mm)) l w c MRC 1/2 c 1206 0.128 0.007 (3.25 0.18) 0.063 0.010 (1.60 0.25) 0.020 0.010 (0.51 0.25) l c w
|
