type s series tyco introduces a range of surface mount power resistors to meet today's circuit design needs. one design concept allows an engineer to choose from three styles (lo ohm, power, or ultra precision) while staying within the new standard circuit board land pattern guidelines now accepted by the wirewound resistor industry. each size offers low profile case design with flexible tinned copper terminations for reliable solder joints. all styles utilise a fully welded construction technique, unlike other designs that rely solely on tinned termination connections. these features allow the s series to withstand the higher temperatures associated with reflow, vapour phase, or infrared (ir) manufacturing processes without degradation. key features low profile design available on tape (3 reel sizes) very wide value range ideal for current sensing up to 3.0 watts power high tcr versions (to 6000ppm) stable to 5ppm/c characteristics - electrical "sl" lo ohm "sp" power "su" precision values s1/2: r01 - r05 r06 - 1k4 ---- values s1: r005 - r075 r10 - 5k0 1r0 - 300k values s2: r005 - r099 r10 - 10k 1r0 - 1 meg values s3: r005 - r099 r10 - 45k 1r0 - 2 meg grid: e24 e96 e192 resistance tolerances: 1%, 3%, 5%. 0.1% to 5%. 0.005% to 1%. power rating @ 25c s1/2: 0.5 watt 0.75 watts ---- power rating @ 25c s1: 1 watt 1.5 watt 0.125 watts power rating @ 25c s2: 2 watts 2.5 watts 0.250 watts power rating @ 25c s3: 3 watts 3.5 watts 0.500 watts derating: see curve below see curve below see curve below max. operating voltage s1/2: power x resistance 33 volts ---- max operating voltage s1: power x resistance 58 volts 100 volts max operating voltage s2: power x resistance 127 volts 300 volts max operating voltage s3: power x resistance 212 volts 400 volts inductance: < 7 nanohenries ---- ---- temperature coefficient of resistance range (l) low ohm (p) power (u) precision r005 - r20 <100 ppm r10 - r99 90ppm 1r0 - 10r 50ppm 25ppm 11r - 100r 30ppm 10ppm 102r and over 20ppm 10ppm characteristics - electrical typical r solder immersion: 260c for 10 seconds. 0.1% load life: 2000 hours at rated power at 25c. 0.2% moisture resistance: 240 hours with humidity ranging from 80% rh to 98% rh. 0.1% thermal shock: -55c for 15 minutes no load. 0.1% dielectric withstand: 1000 volts. short term overload: 5 times rated power for 5 seconds 0.1% solderability: 95% coverage within 1/16" of contact point. ---- flammability: ul94v rating. ---- power derating 25 50 75 100 125 150 175 200 225 250 275 100 75 50 25 0 percent rated power ambient temperature (c) 0.1%, 0.25%, 0.5%, 1.0% 0.02%, 0.05% 0.01% 0.005% note: u style derates to 145c. all others derate to 275c smd precision current sense resistor type s series literature no. 1773276 issued: 03-08 dimensions are shown for reference purposes only. dimensions are in millimetres unless otherwise specified. specifications subject to change. tycoelectronics.com passives.tycoelectronics.com
dimensions size length width height stand off pad width pad length (l) (w) (h) (s) (pw) (pl) s 1/2 5.46 3.18 2.54 n/a 1.27 1.02 s1 6.48 3.81 2.84 0.50 1.27 1.25 s2 12.14 5.84 5.33 0.50 2.54 2.54 s3 15.24 7.00 6.48 0.50 2.29 1.27 pl s l w h pw .006 flat lead thickness type h j x y s 1/2 1.91 4.45 1.78 2.54 s1 3.43 5.97 2.03 2.54 s2 6.98 10.54 3.05 3.56 s3 10.42 14.78 2.80 3.56 land pattern s l 1 1r0 j t common part l - low ohmic p - power u - precision resistor type case size s - standard part 1/2 - 5.5 x 3.2 1 - 6.5 x 3.8 2 - 12.1 x 5.9 3 - 15.3 x 7.0 resistance value k 10% j 5% e 3% f 1% d 0.5% c 0.25% b 0.1% a 0.05% q 0.02% t 0.01% z 0.005% absolute tol. at +25c pack style 0.1 ohm (100 milli ohms) r10 1 ohm (1000 milli ohms) 1r0 1k ohm (1000 ohms) 1k0 l - loose piece t - 7 reel r - 13 reel how to order cleaning conditions after soldering use cleaning solvents such as chlorosen, dyefreon, suitable aqueous or semi aqueous cleaner. storage to prevent damage to the electrode, be sure to observe the following cautions for storage. ? store in 40c maximum ambient temperature, and 70% maximum r.h. ? for maximum possible shelf life do not disturb polythene sleeve until you are ready to use. ? store where there are no harmful gases containing sulphur or chlorine. h smd precision current sense resistor type s series literature no. 1773276 issued: 03-08 dimensions are shown for reference purposes only. dimensions are in millimetres unless otherwise specified. specifications subject to change. tycoelectronics.com passives.tycoelectronics.com
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