High Energy Wirewound Axial Terminal / Surface Mount / Heat Sinkable Packaging Ohmite Manufacturing’s family of High Energy Wirewound Resistors employ special winding techniques to maximize the effective joule rating of each resistor. Most wirewound resistors are wound with the objective of meeting the stated power (wattage) rating and keeping cost low through the use of automatic winding equipment. Typically, manufacturers will allow substitution of resistance wire, depending on material availability. On tight tolerance wirewounds some type of abrasive adjustment to the resistance wire is often used to maximize production yields. Both of these procedures can adversely affect the joule rating and fusing current of a wirewound resistor, and this is often the reason that the manufacturer does not publish a fixed joule rating. Ohmite High Energy Wirewounds are hand wound in order to maintain the tightest possible pitch (space between windings) and thereby maximize the mass of the resistive element. Since no wire substitutions are allowed, and no abrasive adjusting is permitted in this family, Ohmite can publish a fixed joule rating and fusing current for each part number in the series. This technique can be applied to any wirewound product. In order to provide the broadest selection of packaging, Ohmite has developed standard offerings in three different package types-axial, SMD, and heat sinkable. Other sizes and types can be quoted on request, such as tubular power resistors. SE R IES S P E C I F I C A T IONS Series 33Jxxx 35Jxxx 30Jxxx 825JxxxH RH3R0DBxxxJ Type Axial Axial Axial Heat Sinkable Surface Mount Watts 3 5 10 25 3 Tolerance 5% 5% 5% 5% 5% Voltage 200 460 1000 520 200 Dimensions 1.5 / 38.1 33J: 0.593 / 15.1 35J: 1.000 / 25.4 30J: 1.900 / 46.8 825JxxxH: 1.938 / 49.23 33J: 0.218 / 5.5 35J: 0.343 / 8.7 30J: 0.406 / 10.3 33J: 20 ga. 35J: 18 ga. 30J: 18 ga. 0.273 / 6.934 0.226 / 5.740 RH3R0DBxxxJ: 0.612 / 15.545 60 0.546 / 13.87 1.080 / 27.43 in. / mm 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] 33 J1 33 R0 J5 33 R0 J1 33 0R J1 33 5R J2 33 0R J2 33 5R J3 33 0R J5 33 0R J1 35 00 J1 35 R5 J2 35 R5 J7 35 R5 J1 35 2R J1 35 8R J2 35 2R J3 35 6R J4 35 7R J7 30 5R J2 30 R0 J4 30 R7 J6 30 R8 J1 30 5R J2 30 7R J3 30 3R J5 30 0R J8 30 2R J1 30 00 J1 50 100 80 60 40 20 0 50 Fusing Energy (J) 600 500 200 100 0 Fusing Current (A) 40 30 20 825J- 250 825J- 45 825J- 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] -R 50 -1R 0J 0 -2R 0J 7 -4R 0J 7 -6R 0J 8 -7R 0J 5 -10 0J R -15 0J R -25 0J R -47 0J R -68 0J R -75 0J R0 J 120 -R 50 -1R 0J 0 -2R 0J 7 -4R 0J 7 -6R 0J 8 -7R 0J 5 -10 0J R -15 0J R -25 0J R -47 0J R -68 0J R -75 0J R0 J 140 -1R 0 -5R H 0 -10 H R -25 H R -36 H R -47 H R -75 H R -10 H 0 -15 H 0H 160 60 -R 50 -1R 0J 0 -2R 0J 7 -4R 0J 7 -6R 0J 8 -7R 0J 5 -10 0J R -15 0J R -25 0J R -47 0J R -68 0J R -75 0J R0 J 700 Energy (J) -1R 0 -5R H 0 -10 H R -25 H R -36 H R -47 H R -75 H R -10 H 0 -15 H 0H 33 J1 33 R0 J5 33 R0 J1 33 0R J1 33 5R J2 33 0R J2 33 5R J3 33 0R J5 33 0R J1 35 00 J1 35 R5 J2 35 R5 J7 35 R5 J1 35 2R J1 35 8R J2 35 2R J3 35 6R J4 35 7R J7 30 5R J2 30 R0 J4 30 R7 J6 30 R8 J1 30 5R J2 30 7R J3 30 3R J5 30 0R J8 30 2R J1 30 00 J1 50 180 -1R 0 -5R H 0 -10 H R -25 H R -36 H R -47 H R -75 H R -10 H 0 -15 H 0H 33 J1 33 R0 J5 33 R0 J1 33 0R J1 33 5R J2 33 0R J2 33 5R J3 33 0R J5 33 0R J1 35 00 J1 35 R5 J2 35 R5 J7 35 R5 J1 35 2R J1 35 8R J2 35 2R J3 35 6R J4 35 7R J7 30 5R J2 30 R0 J4 30 R7 J6 30 R8 J1 30 5R J2 30 7R J3 30 3R J5 30 0R J8 30 2R J1 30 00 J1 50 High Energy Wirewound Axial Terminal / Surface Mount / Heat Sinkable Packaging p e rf o r m a n c e charact e r i s i c s Energy (J) 14 50 40 30 20 10 2 0 0 Fusing Energy (J) 60 200 400 150 30 300 100 20 50 0 Fusing Current (A) 35 40 35 30 15 25 20 20 15 10 10 5 5 0 0 0 61 Energy (J) 12 10 8 6 4 RH3R0DB- Fusing Energy (J) 50 40 10 0 0 RH3R0DB- Fusing Current (A) 30 25 10 RH3R0DB- (continued) High Energy Wirewound Axial Terminal / Surface Mount / Heat Sinkable Packaging o rd e r i n g i n f o r m at i o n Standard Part Numbers Part Number Ohms Power Energy Fusing Current (J) Energy (J) to fuse (A) Power to fuse (W) 33J1R0 33J5R0 33J10R 33J15R 33J20R 1 5 10 15 20 3 3 3 3 3 12.70 6.25 4.94 4.66 3.91 53.26 26.20 20.73 19.55 16.40 23.93 10.03 7.08 5.95 5.00 572.60 502.96 501.70 531.47 500.45 33J25R 33J30R 33J50R 33J100 35J1R5 25 30 50 100 1.5 3 3 3 3 5 3.07 2.97 2.43 1.92 76.55 12.89 12.46 10.20 8.07 321.19 4.20 3.92 2.97 2.10 40.32 441.79 460.80 440.68 439.58 2438.48 35J2R5 35J7R5 35J12R 35J18R 35J22R 2.5 7.5 12 18 22 5 5 5 5 5 64.65 37.66 37.90 28.80 27.48 271.23 158.01 158.99 120.84 115.29 31.59 16.90 14.20 11.13 10.03 2494.75 2141.89 2420.25 2228.50 2213.02 35J36R 35J47R 35J75R 30J2R0 30J4R7 36 47 75 2 4.7 5 5 5 10 10 22.78 23.22 18.77 162.30 150.86 95.59 97.42 78.77 680.93 632.92 7.86 7.08 5.55 47.98 33.88 2222.93 2358.00 2309.77 4603.79 5395.94 30J6R8 30J15R 30J27R 30J33R 30J50R 6.8 15 27 33 50 10 10 10 10 10 137.27 119.76 85.27 65.54 62.45 575.91 502.47 357.74 274.98 262.03 28.47 20.11 14.20 11.93 10.03 5513.41 6065.77 5445.56 4700.40 5029.59 30J82R 30J100 30J150 825J1R0H 825J5R0H 82 100 150 1 5 10 10 10 25 25 51.90 49.41 46.61 51.04 39.92 217.74 207.28 195.54 214.12 167.49 7.86 7.08 5.95 40.32 20.11 5063.34 5017.03 5314.71 1625.65 2021.92 825J10RH 825J25RH 825J36RH 825J47RH 825J75RH 10 25 36 47 75 25 25 25 25 25 31.58 19.64 17.79 18.71 14.66 132.50 82.40 74.62 78.49 61.49 14.20 8.43 7.08 6.60 5.00 2016.87 1776.01 1806.13 2049.57 1876.69 25 25 3 3 3 12.29 11.59 12.93 10.23 6.87 51.56 48.64 54.25 42.91 28.82 4.20 3.53 31.59 22.31 13.24 1767.15 1872.00 498.95 497.70 473.33 825J100H 100 825J150H 150 RH3R0DBR500J 0.5 RH3R0DB1R00J 1 RH3R0DB2R70J 2.7 RH3R0DB4R70J RH3R0DB6R80J RH3R0DB7R50J RH3R0DB10R0J RH3R0DB15R0J 4.7 6.8 7.5 10 15 3 3 3 3 3 5.87 5.34 4.75 3.98 3.75 24.63 22.41 19.91 16.70 15.75 10.03 8.43 7.86 6.60 5.55 472.78 483.07 463.11 436.08 461.95 RH3R0DB25R0J RH3R0DB47R0J RH3R0DB68R0J RH3R0DB75R0J 25 47 68 75 3 3 3 3 3.07 2.28 2.08 2.29 12.89 9.59 8.72 9.62 4.20 2.97 2.49 2.49 441.79 414.24 423.26 466.83 RoHS compliant product available; Add “E” suffix to part number to specify. Other values available, contact Ohmite for details. 62 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected]