30J33R中文资料

High Energy Wirewound

Axial Terminal / Surface Mount /

Heat Sinkable Packaging

Ohmite Manufacturing’s family of High Energy Wirewound Resistors employ special winding techniques to maxi-mize the effective joule rating of each resistor. Most wire-wound 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 sub-stitution of resistance wire, depending on material avail-ability. 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 rat-ing 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

33J: 0.593 / 15.135J: 0.987 / 25.130J:

1.842 / 46.8

30J: 18 ga.

0.273 / 6.934

825JxxxH: 1.938 / 49.230.546 / 13.87

in. / mm S T A N D A R D P A R T N U M B E R S F O R 30 S E R I E S

Energy Fusing Current Power to Part Number Ohms Power (J) Energy (J) to fuse (A) fuse (W)33J1R0 1 3 12.70 53.26 23.93 572.6033J5R0 5 3 6.25 26.20 10.03 502.9633J10R 10 3 4.94 20.73 7.08 501.7033J15R 15 3 4.66 19.55 5.95 531.4733J20R 20 3 3.91 16.40 5.00 500.4533J25R 25 3 3.07 12.89 4.20 441.7933J30R 30 3 2.97 12.46 3.92 460.8033J50R 50 3 2.43 10.20 2.97 440.6833J100 100 3 1.92 8.07 2.10 439.5835J1R5 1.5 5 76.55 321.19 40.32 2438.4835J2R5 2.5 5 64.65 271.23 31.59 2494.7535J7R5 7.5 5 37.66 158.01 16.90 2141.8935J12R 12 5 37.90 158.99 14.20 2420.2535J18R 18 5 28.80 120.84 11.13 2228.5035J22R 22 5 27.48 115.29 10.03 2213.0235J36R 36 5 22.78 95.59 7.86 2222.9335J47R 47 5 23.22 97.42 7.08 2358.0035J75R 75 5 18.77 78.77 5.55 2309.7730J2R0 2 10 162.30 680.93 47.98 4603.7930J4R7 4.7 10 150.86 632.92 33.88 5395.9430J6R8 6.8 10 137.27 575.91 28.47 5513.4130J15R 15 10 119.76 502.47 20.11 6065.7730J27R 27 10 85.27 357.74 14.20 5445.5630J33R 33 10 65.54 274.98 11.93 4700.4030J50R 50 10 62.45 262.03 10.03 5029.5930J82R 82 10 51.90 217.74 7.86 5063.3430J100 100 10 49.41 207.28 7.08 5017.0330J150 150 10 46.61 195.54 5.95 5314.71825J1R0H 1 25 51.04 214.12 40.32 1625.65825J5R0H 5 25 39.92 167.49 20.11 2021.92825J10RH 10 25 31.58 132.50 14.20 2016.87825J25RH 25 25 19.64 82.40 8.43 1776.01825J36RH 36 25 17.79 74.62 7.08 1806.13825J47RH 47 25 18.71 78.49 6.60 2049.57825J75RH 75 25 14.66 61.49 5.00 1876.69825J100H 100 25 12.29 51.56 4.20 1767.15825J150H 150 25 11.59 48.64 3.53 1872.00RH3R0DBR500J 0.5 3 12.93 54.25 31.59 498.95RH3R0DB1R00J 1 3 10.23 42.91 22.31 497.70RH3R0DB2R70J 2.7 3 6.87 28.82 13.24 473.33RH3R0DB4R70J 4.7 3 5.87 24.63 10.03 472.78RH3R0DB6R80J 6.8 3 5.34 22.41 8.43 483.07RH3R0DB7R50J 7.5 3 4.75 19.91 7.86 463.11RH3R0DB10R0J 10 3 3.98 16.70 6.60 436.08RH3R0DB15R0J 15 3 3.75 15.75 5.55 461.95RH3R0DB25R0J 25 3 3.07 12.89 4.20 441.79RH3R0DB47R0J 47 3 2.28 9.59 2.97 414.24RH3R0DB68R0J 68 3 2.08 8.72 2.49 423.26RH3R0DB75R0J 75 3

2.29

9.62

2.49

466.83

RoHS compliant product available; Add “E” suffix to part number to specify.

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 packag-ing, 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.

30J, 33J, 35J and 825J

Series: Non-inductive versions can also be supplied, along with the calculated joule rating, fusing current, and inductance.

(continued)

High Energy Wirewound

Axial Terminal / Surface Mount / Heat Sinkable Packaging (continued)