WCA Series WCA Series • 8 Terminal package With 4 isolated resistors • Automatic Placement Capabilities • Operating Temperature -55°C to +125°C • Wrap-around, 100% Tin (Pb-free) Terminations Specifications Environmental Data Resistance Range 1% 22W - 1MW Operating Temperature Range Temprature Coefficient Maximum ∆R Test 5% 10W - 1MW zero ohm jumper Thermal Shock ±1.0% -55°C to +125°C Short Time Overload ±1.0% High Temperature Exposure ±3.0% Resistance to Solder Heat ±1.0% Moisture Resistance ±2.0% Load Life ±3.0% Low Temperature Operation ±0.5% ±200ppm/°C Power Dissipation (@70°C) 0.65 Watts Maximum Working Voltage 50 Volts Solderability 95% Coverage Power Derating Data Dimensions R1 R2 R3 R4 R1 =R 2 = R3 =R 4 L 0.126” ±0.008 A 0.024” ±0.006 B 0.012” ±0.008 D 0.016” ±0.006 P 0.031” ±0.008 W 0.063” ±0.008 T 0.016” ±0.004 % Of Rated Power 100 50 10 25° 70° 125° Temperature in °C 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. Advanced Film Division • 4222 South Staples Street • Corpus Christi Texas 78411 USA Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com A subsidiary of TT electronics plc WCA Series Issue July 2008 WCA Series Ordering Data Prefix WCA - 08 04 - 1002 - J PLT Terminal Count 08 = 8 pins Resistor Count 04 = 4 Isolated Resistor Resistance Value Three digit EIA E-24 resistance values Example: 102 = 1000 ohms Tolerance J = ±5% Packaging Paper Tape, Tape & Reel (5000/reel) For additional information or to discuss your specific requirements, please contact our Applications Team using the contact details below. Advanced Film Division • 4222 South Staples Street • Corpus Christi Texas 78411 USA Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com WCA Series Issue July 2008