Nichrome Resistor Networks on Ceramic Substrates Models 664, 667, 668 Isolated and bussed circuits Thin film resistor network 0.150 SOIC packages RoHS compliant Not Recommended for New Designs For alternative see Nichrome Resistor Networks on Ceramic Substrates Models 664, 667, 668 Package Power And Derating Curve 3 Model Package Power 70C(watts) 664 0.4 667 0.5 3 Model Package Power 70C(watts) 668 0.5 664 0.4 667 0.5 668 0.5 Environmental (Mil-R-83401) Thermal Shock plus Power Conditioning R 0.25% Thermal Shock plus Power Conditioning R 0.25% Short Time Overload Short Time Overload R 0.1% R 0.1% Terminal Strength R 0.1% Terminal Strength R 0.1% Moisture Resistance R 0.2% Mechanical Shock R 0.25% Moisture Resistance R 0.2% Vibration R 0.25% Mechanical Shock R 0.25% Low Temperature Operation R 0.1% High Temperature Exposure R 0.1% Vibration R 0.25% Load Life, 1,000 Hours R 0.1% Resistance to Solder Heat R 0.1% Low Temperature Operation R 0.1% Dielectric Withstanding Voltage 100V for 1 minute High Temperature Exposure R 0.1% Temperature Exposure, Maximum 215C for 3 minutes Marking Permanency MIL-STD-202, Method 215 Load Life, 1,000 Hours R 0.1% Lead Solderability MIL-STD-202, Method 208 Resistance to Solder Heat Flammability UL-94V-0 Rated R 0.1% Storage Temperature Range -65C to +125C Dielectric Withstanding Voltage 100V for 1 minute Temperature Exposure, Maximum Mechanical 215C for 3 minutes Lead Plating 100 matte Tin (RoHS) Marking Permanency MIL-STD-202, Method 215 Lead Material Copper Alloy Lead Solderability MIL-STD-202, Method 208 Lead Configuration Gull Wing Lead Coplanarity 0.004 (0.102 mm) Flammability UL-94V-0 Rated Substrate Material Alumina Storage Temperature Range Resistor Material Passivated Nichrome -65C to +125C Body Material Molded Epoxy 3 Maximum power per resistor 70C is 100 mW, not to exceed package power Lead Plating 80/20 Tin Lead (Standard) 100 matte Tin (RoHS) General Note TT electronics reserves the right to make changes in product specification without notice or liability. Lead Material Copper Alloy All information is subject to TT electronics own data and is considered accurate at time of going to print. www.bitechnologies.com www.irctt.com www.welwyn-tt.com Lead Configuration Gull Wing TT electronics plc 10.13 Lead Coplanarity 0.004 (0.102 mm) Substrate Material Alumina Resistor Material Passivated Nichrome Body Material Molded Epoxy 3 Maximum power per resistor 70C is 100 mW, not to exceed package power BI Technologies Corporation 4200 Bonita Place Fullerton, CA 92835 USA Website: www.bitechnologies.com BI technologies May 29, 2008 page 2 of 3