50 Series Economical Silicone Coated Wirewound F e at u r e s 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 products. •Rugged construction •Optimized for Medium to High volume production •Custom resistance values can also be produced on request. S e r i e s s p e c i f i c at i o n s Series 53J 55J Power at 25°C 3W 5W Resistance Limiting Element Voltage 0R1 to 10K 150 0R1 to 20K 200 Characteristics Temp. Coefficient ±90 ppm/°C for below 1.0 Ω of Resistance ±50 for 1.0 Ω to 99 Ω ±30 for 100 Ω and above Short Term 53J 5X for 5 seconds Overload 55J 10X for 5 seconds Leads Tin Coated Copper % Rated Power <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 Band 1 2 100 4 ColorDigit Multiplier Tolerance Black 1Ω Brown 80 Red 60 Orange Yellow 40 Green 20 0 25 50 100 150 200 250 300 350 Ambient Temperature, °C 123 4 3 0 0 x 1 1 x 2 2 x 3 3 x 4 4 x 5 5 x Blue 6 6 Grey 8 8 Violet White 10Ω 100Ω 1KΩ 10KΩ 100KΩ ± ± ± ± 1% 2% 3% (F) (G) 4% 7 7 9 9 Gold x Silver x 6 Maximum ∆R Key to four-band code Derating 0 Test Condition Short term overload 5X Rated power for 5 seconds (3W); 10X Rated power for 5 seconds (5W) 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] 0.1Ω 0.01Ω ± ± 5% 10% (J) (K) 50 Series Low Cost Silicone Coated Axial Dimensions (mm) d D max. L 38mm** 0-3mm Type L nom D max* d nom 53J 14±1.5 5.6 0.80±0.05 55J 21±1.5 8 1.0±0.05 OR D ERIN G IN F ORMATION 50 Series Non-Inductive Winding Optional (blank RoHS = std. winding) Compliant Tape & reel 1000 per reel Modified lead length 53NJR10E-TR Wattage Tolerance Resistance Value 3 or 5 watt J = 5% R10 = 0.10Ω 1R0 = 1.0Ω 10R = 10.0Ω 250 = 250Ω 1K0 = 1,000Ω 7K5 = 7500 20K = 20000 Standard Part Numbers 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 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] 7 *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.