High energy Wirewound Axial Terminal / Surface Mount / Heat Sinkable Packaging Ohmite Manufacturings family of High Energy Wirewound Resistors employ special winding tech- niques to maximize the effective joule rating of each resistor. Most wirewound resistors are wound with the objective of meeting the stated power (watt- age) rating and keeping cost low through the use of automatic winding equipment. Typically, manu- facturers 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 in this family, Ohmite can publish a fixed joule rat- the joule rating and fusing current of a wirewound ing and fusing current for each part number in the resistor, and this is often the reason that the manu- series. facturer does not publish a fixed joule rating. This technique can be applied to any wirewound Ohmite High Energy Wirewounds are wound so product. In order to provide the broadest selection of as to maintain the tightest possible pitch (space packaging, Ohmite has developed standard offerings between windings) and thereby maximize the mass in three different package types-axial, SMD, and heat of the resistive element. Since no wire substitutions sinkable. Other sizes and types can be quoted on are allowed, and no abrasive adjusting is permitted request, such as tubular power resistors. seRies sPeCiFiCATions Series Type Watts Tolerance Voltage 33Jxxx Axial 3 5% 200 35Jxxx Axial 5 5% 460 30Jxxx Axial 10 5% 1000 825JxxxH Heat Sinkable 25 5% 520 RH3R0DBxxxJ Surface Mount 3 5% 200 Dimensions 33J: 0.593 / 15.1 825JxxxH: 1.938 / 49.23 0.546 / 13.87 in. / mm 35J: 1.000 / 25.4 30J: 1.900 / 46.8 33J: 0.218 / 5.5 35J: 0.343 / 8.7 1.5 / 38.1 30J: 0.406 / 10.3 33J: 20 ga. 35J: 18 ga. 30J: 18 ga. RH3R0DBxxxJ: 0.612 / 15.545 0.273 / 6.934 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.com 61 0.226 / 5.740 1.080 / 27.43High energy Wirewound Axial Terminal / Surface Mount / Heat Sinkable Packaging PeRFoRmAnCe CHARACTeRisiCs Energy (J) Energy (J) Energy (J) 180 60 14 160 12 50 140 10 120 40 8 100 30 80 6 60 20 4 40 10 2 20 0 0 0 825J- RH3R0DB- Fusing Energy (J) Fusing Energy (J) Fusing Energy (J) 700 250 60 600 50 200 500 40 150 400 30 300 20 100 200 10 50 100 0 0 0 0 825J- RH3R0DB- Fusing Current (A) Fusing Current (A) Fusing Current (A) 50 45 35 40 30 40 35 25 30 30 20 25 20 15 20 15 10 10 10 5 5 0 0 0 825J- RH3R0DB- (continued) 62 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.com 33J1R0 33J5R0 33J10R 33J15R 33J20R 33J25R 33J30R 33J50R 33J100 35J1R5 33J1R0 35J2R5 33J5R0 35J7R5 33J10R 35J12R 33J15R 35J18R 33J20R 35J22R 33J25R 35J36R 33J30R 35J47R 33J50R 35J75R 33J100 30J2R0 35J1R5 33J1R0 30J4R7 35J2R5 33J5R0 30J6R8 35J7R5 33J10R 30J15R 35J12R 33J15R 30J27R 35J18R 33J20R 30J33R 35J22R 33J25R 30J50R 35J36R 33J30R 30J82R 35J47R 33J50R 30J100 35J75R 33J100 30J150 30J2R0 35J1R5 30J4R7 35J2R5 30J6R8 35J7R5 30J15R 35J12R 30J27R -1R0H 35J18R 30J33R -5R0H 35J22R 30J50R -10RH 35J36R 30J82R -25RH 35J47R 30J100 -36RH 35J75R 30J150 -47RH 30J2R0 -75RH 30J4R7 -100H 30J6R8 30J15R -150H 30J27R -1R0H 30J33R -5R0H 30J50R -10RH 30J82R -25RH 30J100 -36RH 30J150 -47RH -R500J -75RH -1R00J -100H -2R70J -150H -4R70J -1R0H -6R80J -5R0H -7R50J -10RH -10R0J -25RH -15R0J -36RH -25R0J -47RH -47R0J -R500J -75RH -68R0J -1R00J -100H -75R0J -2R70J -150H -4R70J -6R80J -7R50J -10R0J -15R0J -25R0J -47R0J -R500J -68R0J -1R00J -75R0J -2R70J -4R70J -6R80J -7R50J -10R0J -15R0J -25R0J -47R0J -68R0J -75R0J