Sp e c i f i cat i on s F e at u r e s Material Core: Ceramic. Coating: Vitreous enamel except for values above 4.7K (3W) and 7.5K (5W), which are supplied in silicone-ceramic coatings. Terminals: Solder coated radial. #20 ga. tinned terminals require 0.046 in. (1.168 mm) holes (2). RoHS solder composition is 96% Sn, 3.5% Ag, 0.5% Cu Derating: Linearly from 100% @ +25°C to 0% @ +350°C. Note: Values above 3.9K (3W) and 8.2K (5W) involve very fine resistance wire and should not be used in critical applications without burn-in and/or thermal cycling. Electrical Tolerance: ±5% (J) (other tolerances available). Power rating: Based on 25°C free air rating. Overload: 3 watt: 5 times rated wattage for 5 seconds. 5.25 watt: 10 times rated wattage for 5 seconds. Temperature coefficient: ±260 ppm/°C. To calculate max. amps: use the formula √P/R. • Radial construction for direct insertion into printed circuit boards; fit standard 0.10 inch matrix boards with standard 0.046 inch diameter holes. Provides a built in stand-off to reduce board temperature. • Space saving radial terminals reduce the total length requirement compared to axial terminal resistors and increase packaging density possibilities. • Flame resistant lead free vitreous enamel coating. • RoHS compliant; add “E” suffix to part number to specify. 0.25"±0.031 6.35 mm ±0.794 A ±0.010" 0.031" min. 0.79 mm Dim. A Voltage 0.30 / 7.62 103 0.50 /12.70 1R0 1R5 2R0 2R4 3R0 3R9 5R0 5R1 5R6 7R5 10R 15R 18R 20R 22R 25R 30R 0R 50R 51 56 68 75 82 100 120 150 160 200 220 250 270 300 330 350 390 00 51R 56R 68R 75R 82R 100 120 150 160 200 220 250 270 300 330 350 390 00 30 500 510 560 600 620 750 800 820 910 1000 1200 1300 1500 1800 2000 2200 2400 30 500 510 560 600 620 750 800 820 910 1K0 1K2 1K3 1K5 1K8 2K0 2K2 2K4 2500 2700 3000 3300 3900 700 5000 5600 6200 6800 7500 8200 9000 9100 10,000 12,000 15,000 20,000 Wattage Part No. Prefix Suffix 2K5 2K7 3K0 3K3 3K9 K7 5K0 5K6 6K2 6K8 7K5 8K2 9K0 9K1 10K 12K 15K 20K R3J––– 3 R5J––– 5 Part No. Prefix Suffix Ohmic value Wattage R3J––– 3 R5J––– 5 Ohmic value Part No. Prefix Suffix R3J––– 3 R5J––– 5 Ohmic value R3J––– 3 R5J––– 5 Ohmic value 1 1.5 2 2.4 3 3.9 5 5.1 5.6 7.5 10 15 18 20 22 25 30 0 50 Part No. Prefix Suffix Wattage PC-58 Wattage Tolerance Ohm Value Example: Series J = 5% 1R0 = 1.0Ω 10R = 10.0Ω 250 = 250Ω 4K7 = 4,700Ω H ±0.031" R5J1K0E D max. L ±0.016" 187 S ta n d a r d pa rt n u m b e r s f o r p c - 5 8 s e r i e s Wattage RoHS Compliant Tubular Radial Terminal Wirewound for PC Board Applications Dimensions (in. / mm) Series Wattage Ohms Length Height Diam. R3 (vitreous) 3 1-3.9K 0.438 / 11.13 0.469 / 11.91 0.313 / 7.95 (silicone) 4K-10K R5 (vitreous) 5.25 1-7.4K 0.625 / 15.88 0.516 / 13.11 0.344 / 8.74 (silicone) 7.5K-20K o r d e r i n g i n f o r m at i o n PC-58 Series = Standard values Values above 3.9K (3W) and 8.2K (5W) involve very fine resistance wire and should not be used in critical applications without burnin and/or thermal cycling. Values above 4.7K (3W) and 7.5K (5W) supplied in siliconeceramic coatings instead of vitreous enamel. Check product availability at www.ohmite.com Our friendly Customer Service team can be reached at 866-9-OHMITE Ohmite Mfg. Co. 1600 Golf Rd., Rolling Meadows, IL 60008 • 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] 29