1/4 0.25w 1/2 0.5w rc 1/4 102 j b style kamaya ohm fixed carbon composition resistors rc features 1. improved pulse endurance characteristics compared to carbon-film devices. 2. wide resistance range is available, 1 ohm ~ 22m ohm. 3. stability class : 10% dimensions 0.6 0.05 2.4 0.1 6.3 0.7 rc1/4 3.6 0.2 rc1/2 *unit weight/pc. 422mg 222mg unit : mm d 28 3 30 3 d l style + 0.07 ? 0.05 0.7 + 0.8 ? 0.7 9.5 d h hh l d *values for reference part number description example product type rated resistance e24, 12, 6 series e.g. : 2r2=2.2 ohm 102=1k ohm *refer to tape and packaging information on pages 64. *packaging b h tb horizontal forming 52 mm width tape (ammo box) td 52 mm width tape (reel) bulk (straight) rated dissipation j 5% k 10% m 20% tolerance on rated resistance 58 product specifications contained in this catalogue are subject to change at any time without notice. please confirm specificati ons with your order. 2 rohs 3
rc1/2 rc1/4 0.5 0.25 500 100 ?5~+125 1 ohm~22m ohm 1 ohm~5.6m ohm 350 250 j( 5%) : e24 k( 10%) : e12 m( 20%) : e6 at ?5 c at +125 c 1 ohm 1.1k ohm 11k ohm 110k ohm 1.1m ohm ~ ~ ~ ~ ~ 1k ohm 10k ohm 100k ohm 1m ohm 22m ohm +6.5 +10 +13 +15 +20 ~0 ~0 ~0 ~0 ~0 +1 0 0 0 0 ~ ~ ~ ~ ~ ? ? ?.5 ?0 ?5 100 0 -55 125 70 kamaya ohm fixed carbon composition resistors rc style rated dissipation at 70 c w rated resistance range rated resistance range limiting element voltage v tolerance on rated resistance and perferred number series for resistors combination of rated resistance range and temperature coefficient of resistance isolation voltage v category temperature range c ratings temperature coefficient of resistance % note1. rated voltage = (rated dissipation) (rated resistance). (d.c. or a.c. r.m.s. voltage) note2. limiting element voltage can only be applied to resistors when the resistance value is equal to or higher than the crit ical resistance value. note3. critical resistance value is the resistance value at which the rated voltage is equal to the limiting element voltage. derating curve the derated values of dissipation for temperatures in excess of 70 c shall be indicated by the following curve. storage temperature 20 15 c, humidity 60%r.h. max, recommendation storing term 6 months after shipped from factory. climatic category 55/125/56 lower category temperature ? 55 c upper category temperature + 125 c duration of the damp heat, steady-state test 56 days ambient temperature( c) percentage of the rated dissipation(%) area of recommended operation performance characteristics jis c 5201-1 : 1998 description requirements test methods clause 4.13 clause 4.23 clause 4.25.1 clause 4.8 clause 4.17 clause 4.18 clause 4.19 clause 4.24 clause 4.25.3 the applied voltage shall be 2.5 times of the rated voltage or twice of the limiting element voltage, whichever is the less severe, 5s. clause 4.7 clause 4.16.2 10n for 5 10s clause 4.16.4 180 c, 2 rotation rated voltage, 1.5h "on", 0.5h "off", 70 c, 1,000h. measuring temperature : + 20 c/ ? 55 c/ + 20 c/ + 125 c/ + 20 c 235 c, 5s after immersion into the flux, the immersion into solder shall be carried out 4mm from the body at 350 c for 3.5s. 5 cycles between ? 55 c and + 125 c. 40 c, 95%r.h., 56 days, test a) , b) and c) of clause 4.24.2.1 125 c, no-load, 1,000h. voltage proof overload robustness of terminations tensile torsion clause 4.16.3 5n twice bending climatic sequence endurance at 70 c variation of resistance with temperature solderability resistance to soldering heat rapid change of temperature damp test, steady state endurance at the upper category temperature no breakdown or flashover see ratings table ? r (2% + 0.1 ohm) no visible damage, legible marking ? r (2% + 0.1 ohm) no visible damage ? r (2% + 0.1 ohm) no visible damage ? r (2% + 0.1 ohm) no visible damage in accordance with clause 4.17.4.5 ? r (3% + 0.1 ohm) no visible damage, legible marking ? r (2% + 0.1 ohm) no visible damage ? r (10% + 0.5 ohm) insulation resistance : r 100m ohm no visible damage ? r (10%+0.5 ohm) no visible damage insulation resistance : r 1g ohm ? r (10% + 0.5 ohm) no visible damage insulation resistance : r 1g ohm ? r (10%+0.5 ohm) insulation resistance : r 100m ohm no visible damage, legible marking dry/damp heat(12 + 12h cycle), first cycle./ cold/damp heat(12 + 12h cycle), remaining cycle./ d.c.load. rc1/4 100va.c.,60s rc1/2 500va.c.,60s v ? block method 59 product specifications contained in this catalogue are subject to change at any time without notice. please confirm specificati ons with your order. 2 rohs 3
total total 100 60 20 0 1.20x10 7 1.196x10 7 2.992x10 6 2.997x10 6 2.990x10 6 2.984x10 6 0 15 3 2 4 6 0.0055 0.125 0.100 0.067 0.134 0.201 0.007 0.138 0.139 0.104 0.176 0.244 1.299 10 7 7.209 10 5 7.194 10 5 9.615 10 5 5.682 10 5 4.098 10 5 criterion (%) ? r/r 5 load ratio p/pn (%) total testing time t(hrs. ) number of failures r(pcs.) failure ratio cl(60%) average lifetime (60% reliability level) (hrs.) 10 typical characteristics ?urge resistance characteristics charging and discharging a 2,000 pf capacitor for 100 cycles. "typical characteristics indicate the mean values of ? r/r etc." ? r/r(%) voltage(kv) 10 0 -20 -30 -10 0246810 c b a 12 14 rc1/4 a : 1.2m ohm b : 33k ohm c : 1k ohm ?elationship between load ratio and category temperature ? r/r(%) ambient temperrature( c) 0 ? 5 ? 15 ? 10 30 50 70 90 110 130 rc1/2 100k ohm n=50 2,500 hours ? r/r(%) voltage(kv) 10 0 ? 20 ? 30 ? 10 0246810 c b a 12 14 rc1/2 a : 1.2m ohm b : 10k ohm c : 1k ohm load factorp/ph=1.25 1.0 0.75 0.5 0 0.25 ?ndurance at 70 c ? r/r(%) testing time(hrs.) 0 ? 1 ? 3 ? 2 0 100 500 1000 rc1/4 rc1/2 220k ohm in an atomosphere of 70 c ?ariation with time condition : 5~35 c , 45~85% r.h. ? r/r(%) variation with time(month) 3 2 1 ? 1 0 2 0 46810 12 a : rc1/4 100k ohm b : rc1/4 1k ohm c : rc1/2 1m ohm a b c ?requency characteristics ? rac/rdc(%) (mhz . m ohm) 100 75 25 0 50 0.1 0.5 1 5 10 50 100 a b a : rc1/4 b : rc1/2 kamaya ohm fixed carbon composition resistors rc reliability test endurance in humidity samples : rc1/4j,100 ohm,1k ohm,10k ohm,100k ohm 150 each. total 2,400. conditions : direct current voltage equivalent to the following load ratings in cycles on "on" for 1.5h and "off" for 0.5h for a total of 5,000h in an atmosphere of 40 c, 90 to 95%r.h. 60 product specifications contained in this catalogue are subject to change at any time without notice. please confirm specificati ons with your order. 2 rohs 3
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