SPP11001J IRCTT | Alldatasheet

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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. A subsidiary of TT electronics plc• 4222 South Staples Street • Corpus Christi T exas 78411 USAWire and Film Technologies Division T elephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com Alloy resistance wirewound on fiberglass core Mechanically crimped termination assembly EIA/MIL color code: first wide band indicates wirewound construction, blue indicator indicates flameproof SPP Series

  • Coated or uncoated units
  • Positive high TC’s upon request
  • Color band standard identification
  • Lower ranges available - contact factory
  • Weldable and solderable magnetic leads Low-Cost General Purpose Conformal Coated Wirewound Resistor Notes: Unless specified otherwise, standard test centers are 1 ¾ inches. Electrical Data IRC Type SPP-1 SPP-2 SPP-3 Resistance - Std. 0.1Ω to 1200Ω 0.1Ω to 2400Ω 0.1Ω to 2400Ω Tolerance - Std. ±5%, ±10% ±5%, ±10% ±5%, ±10% Power Rating 1 watt @ 85°C 3/4 watt @ 105°C 1/2 watt @ 125°C Derating to 0 @ 160°C 2 watt @ 85°C 1 watt @ 140°C --- --- 3 watt @ 85°C 2 watt @ 145°C 1 watt @ 190°C --- Load Life Stability 1 watt @ 85°C ± 10% 2 watt @ 85°C ± 10% 3 watt @ 85°C ± 10% Max. Continuous Working Voltage √PR √PR √PR Min. Insulation Resistance 10,000 Meg

100 Meg

10,000 Meg 10,000 Meg Min. Dielectric Withstanding Volts (RMS) 600V 600V 600V Current Noise Negligible Negligible Negligible Temperature Rise at Rated Load, 25°C Ambient Approx. 150°C Approx. 200°C Approx. 225°C Temperature Coefficient ±600/°C 0.10Ω - 0.91Ω ±300/°C 1Ω - 1200Ω ±600/°C 0.10Ω - 0.91Ω ±300/°C 1Ω - 2400Ω ±600/°C 0.10Ω - 0.91Ω ±300/°C 1Ω - 2400Ω Dry Wet SPP Series Issue December 2008 Sheet 1 of 3

  • 4222 South Staples Street • Corpus Christi T exas 78411 USAWire and Film Technologies Division T elephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com Dimensions (Inches and (mm)) IRC Type A B C ± .002 SPP-3 0.570 max 0.170 max. 0.032 Physical Data Characteristics Maximum Limits Temperature Coefficient (ppm/°C) ±300/°C 1.0Ω - 1200Ω ±300/°C 1.0Ω - 2400Ω ±600/°C 1.0Ω - 2400Ω Thermal Shock ±5% Low Shock ±5% Short Time Overload ±5% Commercial Short Time Overload ±5% Resistance to Solder Immersion ±3% Solderability 95% minimum coverage Moisture Resistance ±5% Life Test ±5% Test Method EIA Specification RS-344 Environmental Data Low-Cost General Purpose Conformal Coated Wirewound Resistor SPP-1 SPP-2 SPP-3 C A max. 1.125 min. B SPP Series Issue December 2008 Sheet 2 of 3
  • 4222 South Staples Street • Corpus Christi T exas 78411 USAWire and Film Technologies Division T elephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com Power Derating Curve Sample Part No. IRC Type Power (See Electrical Data chart for other power ratings) Resistance Value Expressed in ohms (Standard EIA/MIL values) Tolerance J = ±5%, K = ±10% standard Ordering Data SPP 1 1001 J Low-Cost General Purpose Conformal Coated Wirewound Resistor Temperature Rise Curve 100 Ambient Temperature (°C) Percent Rated Power 0 5 0 100 150 200 250 300 SPP-3 SPP-1, 2 200 300 100 Percent Rated Power Temperature Rise (°C) 0 20 40 60 8 0 100 SPP-3 SPP-2 SPP-1 SPP Series Issue December 2008 Sheet 3 of 3