Ohmite 280 Application Information

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Application Notes
Core and Terminal Selection for Made to Order Type 280 Corrib Resistors
Free Air Wattage
Rating O.D. I.D. Length
1500 2.50” (63.5mm) 1.75” (44.45mm) 20.0” (508.00mm) S 0.56 358 45 1000 15.0” (381.00mm) S 0.41 258 750 12.0” (304.80mm) S 0.31 198 380 6.0” (152.40mm) S 0.13 78
550 1.625” (41.28mm) 1.125” (28.58mm) 11.75” (298.45mm) R 0.21 133 45 500 10.50” (266.70mm) R 0.19 117 400 8.5” (215.90mm) R 0.14 91
270 1.50” (38.10mm) 1.125” (28.58mm) 5.0” (127.00mm) Q 0.065 41 45
395 1.125” (28.58mm) 0.75” (19.05mm) 11.25” (285.75mm) P 0.14 87 45 375 10.5” (266.70mm) P 0.13 80 300 8.5” (215.90mm) P 0.099 63 220 6.0” (152.40mm) P 0.063 39 185 5.0” (127.00mm) P 0.05 30 155 4.25” (107.95mm) P 0.038 25
Core Dimensions
for
Core
Dia.
Ohms
Min. Max.
Term.
Type
Free Air Wattage
Rating O.D. I.D. Length
315 1.00” (25.40mm) 0.625” (15.88mm) 10.0” (254.00mm) N 0.11 67 45 215 7.0” (177.60mm) N 0.068 43 190 6.0” (152.40mm) N 0.056 35 150 5.0” (127.00mm) N 0.043 27 125 4.0” (101.60mm) N 0.031 19
180 0.75” (19.05mm) 0.50” (12.70mm) 6.5” (165.10mm) M 0.031 29 45 160 6.0” (152.40mm) M 0.038 26 140 5.0” (127.00mm) M 0.028 20 105 4.0” (101.60mm) M 0.020 14 100 3.5” (88.90mm) M 0.021 11
135 0.563” (14.30mm) 0.313” (7.95mm) 6.0” (152.40mm) K 0.028 21 46 110 5.0” (127.00mm) K 0.029 16 90 4.0” (101.60mm) K 0.021 12 46 35 2.0” (50.80mm) K 0.0097 0.11
35 0.563” (14.30mm) 0.313” (7.95mm) 2.0” (50.80mm) K 0.12 5.6 40
Core Dimensions
for
Core
Dia.
Ohms
Min. Max.
Term.
Type
Ohmite Mfg. Co. 1600 Golf Rd., Suite 850, Rolling Meadows, IL 60008 • Tel. 1-866-9-OHMITE • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 43
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