1-866-9-ohmite ? intl 1-847-258-0300 ? fax 1-847-574-7522 ? www.ohmite.com ? info@ohmite.com 50 characteristics ceramic core ceramtec rubalit? 96% alumina end caps stainless steel, precision formed leads copper wire, 100% sn (lead free) coated resistance wire cn49w alloy tc 20ppm/c encapsulation sumicon 1100/1200 epoxy molding compound for ic encapsulation standard tolerance f (1.0%), j (5.0%) temperature coefficient 300ppm/c for 0.03; 100ppm/c for 0.033 maximum working voltage pxr wl series miniature wirewound current sense type power rating (watts) resistance range ( ) wla 0.5 0.005-0.100 wlb 1 0.005-0.100 wlc 2 0.010-0.100 test conditions of test performance thermal shock rated power applied until thermal stability, -55c +0c,-5c,15min. 2.0% short-time overload 5 times rated wattage for 5 seconds 2.0% solderability method 208 of mil-std-202 2.0% terminal strength pull test:10 pounds, 5 to10 seconds, twist test: 1080, 5 second/rotation 1.0% dielectric withstanding voltage 500 volts rms for 1w. 1 minute 1.0% high temperature exposure exposed to an ambient temperature of 275 +5/-0c for 250 8 hours, 5.0% moisture resistance mil-std-202 method 106, 7b not applicable 2.0% low temperature storage cold chamber at a temperature of -65 2c for 24 4 hours 2.0% vibration, high frequency frequency varied 10 to 2000hz, 200g peak, 2 directions 6 hours each 1.0% load life 1000/2000 hours at rated power, +25c, 1.5 hours on, 0.5 hours off 5.0% 100 percent rated power ambient te mperature, ? c 60 20 0 80 40 25 50 100 175 75 0 125 150 features ? ultra-low ohmic value series for current sensing applications ? very low inductance (<1nh at 1mhz test) ? miniaturized dimensions, better power to dimen- sion ratios ? use of the highest quality standard (96% alumina) ceramic core ? manufacturing processCwire winding/spot weldingCby computer numerical control (cnc) machine tools to ensure consistency of product quality. ? encapsulated by epoxy molding compound ? advanced ic encapsulation mold/die technologies derating performance d ata series specif ications (continued)
1-866-9-ohmite ? intl 1-847-258-0300 ? fax 1-847-574-7522 ? www.ohmite.com ? info@ohmite.com 51 type power rating (watts) l d d wla 0.5 5.08 / 0.200 2.54 / 0.100 0.60 / 0.024 wlb 1 7.00 / 0.276 3.30 / 0.130 0.60 / 0.024 wlc 2 11.4 / 0.450 4.57 / 0.180 0.80 / 0.031 ld 0.984 / 25 d ?? ??????????? series ohms power a = 0.5 b = 1 c = 2 t olerance f = 1% j = 5% package t = t ape blank = 25pc pack rohs compliant standard part numbers for wl series wattage: 0.5 1.0 2.0 series: wla wlb wlc ohms 0.005 wlar005fe wlbr005fe 0.01 wlar010fe wlbr010fe wlcr010fe 0.015 wlar015fe wlbr015fe wlcr015fe 0.02 wlar020fe wlbr020fe wlcr020fe 0.025 wlar025fe wlbr025fe wlcr025fe 0.03 WLAR030FE wlbr030fe wlcr030fe 0.05 wlar050fe wlbr050fe wlcr050fe 0.10 wlar100fe wlbr100fe wlcr100fe key to five-band code band 1 2 3 4 5 color digit multiplier tolerance black 0 0 0 x 1 brown 1 1 1 x 10 1% (f) red 2 2 2 x 100 2% (g) orange 3 3 3 x 1k yellow 4 4 4 x 10k green 5 5 5 x 100k 0.5% (d) blue 6 6 6 x 1m 0.25% (c) violet 7 7 7 x 10m 0.10% (b) grey 8 8 8 0.05% white 9 9 9 x 0.001 gold x 0.1 5% (j) silver x 0.01 10% (k) 15 234 wl series miniature wirewound current sense dmnson s (in./mm)
|
