PRODUCT BULLETIN GP-SERIES WILLOW TECHNOLOGIES LTD. SHAWLANDS COURT, NEWCHAPEL ROAD LINGFIELD, SURREY, RH7 6BL, ENGLAND Tel. + 44 (0) 1342 835234 Fax. + 44 (0) 1342 834306 E-mail [email protected] Website http://www.willow.co.uk GENERAL PURPOSE PRECISION METAL FILM RESISTORS Economical High Performance Very Stable Low Noise CL - CL MAX L. Dimensions Style LL LEAD D. MAX D. Dimensional Correlation In. mm .016 .025 .032 .062 .072 .102 .125 .150 .170 .200 .280 .325 .400 .450 .600 .685 1.250 1.500 .406 .635 .813 1.57 1.83 2.59 3.18 3.81 4.32 5.08 7.11 8.26 10.16 11.43 15.24 17.40 31.75 38.10 GP1/8B GP1/4 GP1/2 GP¾ GP1 Inches Max. L. Max. Dia. CL to CL Lead Dia. Lead Length .170 .280 .400 .600 .600 .072 .102 .150 .200 .200 .200 .325 .450 .685 .685 .020 AWG #24 .025 AWG #22 .025 AWG #22 .025 AWG #22 .032 AWG #20 1.25±.065 1.50±.125 1.50±.125 1.50±.125 1.50±.125 Specifications PRP Style GP1/8B GP1/4 GP1/2 GP3/4 GP1 Mil. Style Resistance Range (Ohms) RN 50 RN 55 RN 60 RN 65 RN 70 10R-500K 2.5R-1M 4.99R-1M 10R-1.5M 10R-1.5M Wattage Rating @70 C @125 C 1/8 1/4 1/2 3/4 1 1/10 1/8 1/4 1/2 1/2 Voltage Rating 200V 300V 500V 500V 750V Typical Performance (100 ohms – 250K) Ref: EIA RS-186 (where applicable) % R % R Thermal Shock………………….……. 0.05 Low Temperature Operation.………....... 0.03 Thermal Strength, 5 lb. Load...……… 0.02 Resist. To Soldering Heat………………. 0.04 Dielectric Withstanding Volt…..…...... 0.02 Short Time Overload ………………….… 0.05 Humidity...……………………….......... 0.20 1000 Hr. Load Life @125 ..…………….. 0.15 Temperature Coefficients TC25=0 TC50=0 T100=0 T250=0 25 PPM/ C – 20 to +85 C 50 PPM/ C – 20 to +85 C 100 PPM/ C – 20 to +85 C 250 PPM/ C – 20 to +85 C Resistance Tolerances 5.0%, 2.0%, 1.0%, 0.5%, 2.5%, 0.1%, .01% Lead Material The core material is O.F.H.C. and is electroplated with a coating of 60/40 tin/lead. Note: The GP-Series of resistors is conformally coated and fully protected against moisture by a multi-paint coat system and a hard epoxy outer coating. Marking is alpha-numeric and meets the most demanding marking requirements. Special marking is available upon request. Consult the factory concerning failsafe, flameproof, and requirements. DEDICATION TO EXCELLENCE Subject to change without notice