SPH1505LF

SPH/SPF SERIES GENERAL-PURPOSE FAILSAFE MOLDED WIREWOUND RESISTOR • • • • • • • • SPF is Fusible 2 watt rated with 1 watt dimensions ±5%, ±10% tolerance 0.1 ohm to 2400 ohms TCR's as low as ±150 ppm/°C std (custom TC's available) Drop-in replacement for BWH/BWF Weldable and solderable leads Lead Free, ROHS Compliant Construction Available 3 1 4 2 See notes below SPECIFICATIONS: IRC Type EIA RS-344 Style MIL-R-11 Style Resistance - Std. Tolerance - Std. Power Rating SPH CRU 2 RC32/RC42 0.1Ω to 2400Ω ±5%, ±10% 2 watt @ 70°C 1 watt @ 115°C Derating to 0 @ 160°C SPF CRU 2 RC32/RC42 0.1Ω to 1000Ω ±5%, ±10% 2 watt @ 70°C 1 watt @ 115°C Derating to 0 @ 160°C 1. Resistive Element All resistor types have resistance alloy winding on a braided fiberglass substrate. Intermediate silicone coatings are used to enhance processibility and to provide protection to the resistive element. 2. Termination The SPH and SPF resistors are terminated using an alloy coated copper flashed steel lead welded to a cap of the same material. This termination assembly is mechanically crimped, utilizing an improved crimp design, to the resistive element. 3. Encapsulation The SPH and SPF are encapsulated utilizing a compression molded phenolic plastic material. The SPF has a flame-resistance coating applied over the resistive element to provide flammability protection when destructive overloads may occur. 4. Marking All products are marked utilizing heat and solvent resistant color code bands consistent with EIA/MIL requirements. The first band is double width to designate wirewound construction. A fifth band, blue in color, is used for flameproof identification. Max. Continuous Working Voltage Min. Insulation Dry Resistance Wet Min. Dielectric ATM Withstanding Volts (RMS) Reduced Pressure Hotspot Temperature Rise Typical Load Life Current Noise √PR 10,000 Meg 100 Meg 1000 V 625V 145°C @ 2 watts 5% Negligible √PR 10,000 Meg 100 Meg 1000 V 625V 145°C @ 2 watts 5% Negligible DIMENSIONS (Inches and (mm)): IRC TYPE SPH SPF A 0.562±0.010 (14.3±0.25) 0.562±0.010 (14.3±0.25) B 0.225±0.008 (5.72±0.20) 0.225±0.008 (5.72±0.20) C 0.032±0.002 (0.813±0.05) 0.032±0.002 (0.813±0.05) D 1.50±0.126 (38.1±3.2) 1.50±0.126 (38.1±3.2) General Note IRC reserves the right to make changes in product specification without notice or liability. All information is subject to IRC’s own data and is considered accurate at time of going to print. WIREWOUND AND FILM TECHNOLOGIES DIVISION 736 Greenway Road • Boone, North Carolina 28607-1860 • Tel: 828-264-8861 • Fax: 828-264-8866 • www.irctt.com A subsidiary of TT electronics plc SPH/SPF CHARACTERISTICS (TYPICAL PERFORMANCE): Test Temperature Coefficient (ppm)* SPH 0.1Ω - 0.16Ω ±1000 0.18Ω - 0.68Ω ±800 0.75Ω - 2400Ω ±400 1000V 5% 5% 5% 5% 5% 5% 5% No Failures SPF 0.10Ω ±1700 0.11Ω - 0.16Ω ±1000 0.18Ω - 0.68Ω ±800 0.75Ω - 1000Ω ±400 1000V 5% 5% 5% 5% 5% 5% 5% No Failures *All ppm levels listed are maximum. Dielectric Withstanding Voltage (RMS) Momentary Overload Low Temperature Operation Temperature Cycle Humidity Load Life Terminal Strength Resistance to Solder Heat Solderability SPH POWER DERATING: SPF POWER DERATING: SPF TYPICAL FUSING: Power (watts) Power (watts) Ambient Temperature (°C) Ambient Temperature (°C) Power (watts) Time (seconds) SPH AND SPF TEMPERATURE RISE: Temperature Rise (°C) HOW TO ORDER: Sample Part No.: SPH 150Ω 5% LF IRC Type Resistance Range Tolerance Power Input (watts) Lead Free Construction WIREWOUND AND FILM TECHNOLOGIES DIVISION 736 Greenway Road • Boone, North Carolina 28607-1860 • Tel: 828-264-8861 • Fax: 828-264-8866 • www.irctt.com