1-866-9-ohmite ? intl 1-847-258-0300 ? fax 1-847-574-7522 ? www.ohmite.com ? info@ohmite.com 6 test condition maximum ?r short term overload 5x rated power for 5 sec - onds (3w); 10x rated power for 5 seconds (5w) <2% + 0r05 load life at rated power 1000 hours (1.5 hrs on, 0.5 hrs off cycle) <5% + 0r05 robustness of termination as per bs-cecc 40201-002 <1% + 0r05 temp. coefficient of resistance 90 ppm/c for below 1.0 50 for 1.0 to 99 30 for 100 and above short term overload 53j 5x for 5 seconds 55j 10x for 5 seconds leads tin coated copper 50 series economical silicone coated wirewound automated winding, in-line color banding, and testing allow for an economically priced, industrial grade wirewound power resistor. these resistors feature an all welded construction with a high purity alumina ceramic core and high quality rohs grade tinned copper wire instead of copper weld which produces better thermal characteristics. the 50 series accompanies ohmite's wide range of axial leaded prod - ucts. series power at 25c resistance limiting element voltage 53j 3w 0r1 to 10k 150 55j 5w 0r1 to 20k 200 feature s ? rugged construction ? optimized for medium to high volume pro - duction ? custom resistance values can also be produced on request. series specif ications characteristics 123 4 key to four-band code band 1 2 3 4 color digit multiplier tolerance black 0 0 x 1 brown 1 1 x 10 1% (f) red 2 2 x 100 2% (g) orange 3 3 x 1k 3% yellow 4 4 x 10k 4% green 5 5 x 100k blue 6 6 violet 7 7 grey 8 8 white 9 9 gold x 0.1 5% (j) silver x 0.01 10% (k) % rated power ambient temperature, c 350 0 50 25 100 150 200 250 300 40 0 60 80 20 100 derating
1-866-9-ohmite ? intl 1-847-258-0300 ? fax 1-847-574-7522 ? www.ohmite.com ? info@ohmite.com 7 standard part numbers 50 series low cost silicone coated axial dimensions (mm) ordering inf ormation d max. l 38mm** 0-3mm d *d max. will be 6mm max. for 53j and 8.5mm for 55j for values less than or equal to 1r0. **when ordered on tape and reel, lead length will be 36mm 3 for 53j and 34mm 3 for 55j. type l nom d max* d nom 53j 141.5 5.6 0.800.05 55j 211.5 8 1.00.05 53n jr10e-tr 50 series tolerance j=5% rohs compliant wattage 3 or 5 watt non-inductive winding optional (blank = std. winding) tape & reel 1000 per reel modified lead length resistance value r10 = 0.10? 1r0 = 1.0? 10r = 10.0? 250 = 250 ? 1k0 = 1,000? 7k5 = 7500 20k = 20000 53jr10e 53jr50e 53j1r0e 53j5r0e 53j7r5e 53j10re 53j25re 53j50re 53j75re 53j100e 53j250e 53j500e 53j750e 53j1k0e 53j2k0e 53j5k0e 53j10ke 55jr10e 55jr50e 55j1r0e 55j5r0e 55j7r5e 55j10re 55j25re 55j50re 55j75re 55j100e 55j250e 55j500e 55j750e 55j1k0e 55j2k0e 55j5k0e 55j10ke 55j20ke
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