SCW-SC3LF-33R0-G

High Power Dissipation SMT Chip Resistor SC3 Series • • • • Tolerances to ±1% 3 watt rating at 70°C Resistance range from 1 to 100KΩ Standard Sn/Pb and matte tin (Pb-free) terminations available Electrical Data Resistance Range Resistance Tolerance Temperature Coefficient Power Dissipation Maximum Voltage Rating _____ (not to exceed √ P X R ) Operating Temperature Range Termination 1Ω to 100KΩ ±1%, ±2%, ±5% ±100 ppm/°C 3.0 Watts* @70°C 100 Volts -55°C to +150°C Leach-resistant nickel barrier under solder-plated wraparound Power Derating Chart 100 % Of Rated Power 50 10 25° 70° 150° Temperature in °C *Note: With 1” square copper area as heat spreader. Physical Data TOP 0.020”±.005” BOTTOM (Board Side) RECOMMENDED SOLDER PAD LAYOUT 0.032” ±.005” 0.30” 7 .6mm 0.250” ± .005” 33R0 Plating wrap-around 0.090” ±.005” 0.030” ±.005” thickness 0.08” (2.0mm) 0.125” ±.005” SCHEMATIC 0.04” (1mm) 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 SC3 Series Issue October 2008 High Power Dissipation SMT Chip Resistor Temperature Rise vs Pad Area 1000 Temper ture Rise (°C) a 100 10 2 100mm 200mm 2 1000mm 2 Termination Pad Area (each end) 1 watt 2 watts 3 watts Pulse Power Rating 100 Power (watts) 10 1 0.1 1.0 Time (sec) 10.0 Advanced Film Division • 4222 South Staples Street • Corpus Christi Texas 78411 USA Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com SC3 Series Issue October 2008 High Power Dissipation SMT Chip Resistor Environmental Data Environmental Test Thermal Shock Short-time Overload High Temperature Exposure Moisture Resistance Load Life Low Temperature Operation Resistance To Solder Heat Solderability Test Method MIL-STD-202 Method 107 Condition B, -65°C + 125°C 2x rated power for 5 seconds 100 Hours, 150°C MIL-STD-202 Method 106 Rated Power @ 70°C for 1000 hours; 1.5 hours ‘on’, 0.5 hours ‘off’ 1 hour @ -65°C followed by Rated power for 45 minutes MIL-STD-202 Method 210 260°C, 5 seconds MIL-STD-202 Method 208 245°C, 5 seconds Specification ∆R ±0.5% + 0.01Ω ∆R ±0.5% + 0.01Ω ∆R ±0.5% + 0.01Ω ∆R ±0.5% + 0.01Ω ∆R ±1.0% + 0.01Ω ∆R ±0.5% + 0.01Ω ∆R ±0.25% + 0.01Ω 95% coverage Ordering Data Prefix SCW SC3LF 33R0 F Model SC3 = 3 watt chip with standard Sn/Pb termination SC3LF = 3 watt chip with matte tin (Pb-free) termination Resistance Code Standard 4-digit resistance code Example: 33R0 = 33Ω; 10K0 = 10,000Ω Resistance Tolerance Code J = ±5%; G = ±2%; F = ±1% Packaging Available in both bulk and tape & 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 SC3 Series Issue October 2008