CPSM Vishay Dale Wirewound Resistors, Commercial Power, Surface Mount FEATURES • Direct mounting on printed circuit board • High wattage capabilities, low board temperatures • Meets or exceeds EIA-RS-344 requirements • Special inorganic potting compound and ceramic case provide high thermal conductivity in a fireproof package • Superior surge capability STANDARD ELECTRICAL SPECIFICATIONS MODEL RESISTANCE RANGE CPSM-3 POWER RATING P40°C W 3 CPSM-5 5 0.1 - 1k Ω ± 5%, ± 10% 0.1 - 1k TECHNICAL SPECIFICATIONS PARAMETER UNIT CPSM RESISTOR CHARACTERISTICS ppm/°C ± 600 below 1.0Ω, ± 300 1.0Ω and above Short Time Overload – 5 x rated power for 5 seconds Operating Temperature °C - 65/+ 275 Dielectric Withstanding Voltage VAC 1000 Maximum Working Voltage V (P x R)1/2 Weight (typical) g CPSM-3 = 5.5; CPSM-5 = 6.5 Temperature Coefficient ORDERING INFORMATION CPSM-5 MODEL www.vishay.com 112 100Ω RESISTANCE Ω 5% TOLERANCE ±% For technical questions, contact [email protected] B31 PACKAGING B31 = Bulk Pack Document Number 30106 Revision 07-Feb-02 CPSM Wirewound Resistors, Commercial Power, Surface Mount DIMENSIONS MODEL Vishay Dale DIMENSIONS in inches [millimeters] ± 0.032 L ± 0.031 ± 0.062 [0.813] [0.787] [1.57] W1 + 0.032 [0.813] - 0.012 [0.305] CPSM-3 0.906 [23.01] 0.374 [9.50] 0.480 [12.19] 0.287 [7.29] 0.374 [9.50] CPSM-5 1.060 [26.92] 0.374 [9.50] 0.590 [14.99] 0.287 [7.29] 0.374 [9.50] W L W L1 H 0.080 [2.03] Maximum 0.020 ± 0.005 [0.508 ± 0.127] L1 W1 MODEL I a b l CPSM-3 0.420 [10.67] 0.340 [8.64] 0.380 [9.65] CPSM-5 0.440 [11.18] 0.340 [8.64] 0.490 [12.45] 150 CPSM-5 100 Rated Power in % Temperature Rise in °C 200 [0.787] SOLDER PAD DIMENSIONS in inches [millimeters] b a H ± 0.031 120 100 80 60 CPSM-3 40 50 20 0 0 1.0 2.0 3.0 4.0 Power in W Temperature Rise 0 5.0 -65 -25 25 40 Derating 75 125 175 225 275 Ambient Temperature in °C MATERIAL SPECIFICATIONS Element Copper-nickel alloy or nickel-chrome alloy, depending on resistance value Core Woven fiberglass Body Steatite ceramic case with inorganic potting compound Terminals Tin/lead plated steel Part Marking DALE, Model, Wattage, Value, Tolerance, Date Code PERFORMANCE TEST CONDITIONS OF TEST TEST LIMITS (EIA RS-344) Thermal Shock - 55°C to + 165°C, 5 cycles, 30 minute dwell time ± (5.0% + 0.05Ω)∆R Short Time Overload 5 x rated power for 5 seconds ± (4.0% + 0.05Ω)∆R Dielectric Withstanding Voltage 1000Vrms for one minute ± (2.0% + 0.05Ω)∆R Low Temperature Operation - 65°C, full rated working voltage for 45 minutes ± (3.0% + 0.05Ω)∆R Humidity 75°C, 90% - 100% RH, 240 hours ± (5.0% + 0.05Ω)∆R Load Life 1000 hours at rated power, + 40°C, 1.5 hours “ON”, 0.5 hours “OFF” ± (10.0% + 0.05Ω)∆R Resistance to Solder Heat + 260°C solder, 10-12 second dwell, 25mm/second emergence ± (4.0% + 0.05Ω)∆R Document Number 30106 Revision 07-Feb-02 For technical questions, contact [email protected] www.vishay.com 113