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5251-10
POWER TYPE RESISTORS TECHNOLOGY OF TOMORROW WIREWOUND MINIATURE TYPE POWER RW STRUCTURE Insulation coating Resistive element (wire) Lead wire Electrode cap Ceramic core POWER TYPE RESISTORS 1 2 3 4 5 IDENTIFICATION PRODUCT CODE COATING COLOR MARKING RW Black Alpha Numeric (Type, R-value and tolerance) TYPE DESIGNATION (HOW TO ORDER) Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. New Part No. (Pb-free) * RW 1/2 T T52 A PRODUCT CODE POWER RATING TERMINATION SURFACE MATERIAL TAPING & FORMING PACKAGING Unit: Watt 1/2 … 10 2611 NOMINAL RESISTANCE T: Sn RESISTANCE TOLERANCE D, F: 4 digits H, J: 3 digits A: Ammo “Blank”: Bulk F D: ±0.5% F: ±1% H: ±3% J: ±5% *Please see “PACKAGING” DIMENSIONS (mm) FEATURES ■ ■ ■ ■ ■ ■ ■ Wirewound high power type resistor (0.5W to 10W) Precision type resistor in a wide resistance range with light tolerances Excellent long term stability Excellent environment performance Axial taping is available for RW1/2 and RW1 Tolerance ±0.1% is available on request Meets or exceeds MIL-R-26E (U and V characteristics) and surface temp. (hot spot) 350 °C max. ■ Rated ambient temperature: +25°C ■ Operating temperature range: -55°C … +275°C (characteristics U) ■ Operating temperature range: -55°C … +350°C (characteristics V) DERATING CURVE 1 2 TYPE L RW 1/2 RW 1 RW 2 RW 3 RW 5 RW 7 RW 10 8 ± 1.0 10.5 ± 1.0 13 ± 1.0 16.5 ± 1.0 22 ± 1.0 31.5 ± 1.0 46 ± 1.5 ØD + 1.0 - 0 1.6 2.7 ± 1.0 5.2 ± 1.0 6.4 ± 1.0 7.8 ± 1.5 7.8 ± 1.5 9.3 ± 1.5 Ød (nominal) l 0.5 0.5 0.8 1.0 1.0 1.0 1.0 38±3 SURFACE TEMPERATURE RISE Characteristic U: Recommended maximum wattage rating for best long term stability. Allows 275°C hot spot and ±0.5% load life stability. Characteristic V: Dual wattage rating allows 350°C hot spot and ±3% ∆R after 1000 Hrs load life stability. RATING TYPE RW 1/2 RW 1 RW 2 RW 3 RW 5 RW 7 RW 10 T.C.R. (ppm/K) ±90: R<1Ω ±50: 1Ω
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