POWER TYPE RESISTORS TECHNOLOGY OF TOMORROW METAL FILM STRUCTURE STANDARD SN 3A * SN 3D 1 2 3 4 5 6 7 POWER TYPE RESISTORS W NE Ceramic core Trimmed metal film Steel cap (Cu, Sn plated) Lead wire Welding joint Expoxy resin overcoating Marking IDENTIFICATION PRODUCT CODE SN 3A, SN 3D COATING COLOR MARKING Light Grey Color Code (R-value and tolerance) All these products have Pb-free terminations and meet RoHS requirements TYPE DESIGNATION (HOW TO ORDER) 3A PRODUCT CODE POWER RATING T.C.R. 3A: 1W 3D: 2W C: 50ppm/K D: 100ppm/K L: 200ppm/K D C F 1002 TERMINATION SURFACE MATERIAL C: SnCu NOMINAL RESISTANCE RESISTANCE TOLERANCE D, F: 4 digits G: 3 digits D: 0.5% F: 1% G: 2% DIMENSIONS (mm) FEATURES Metal film resistors for high power High precision and low T.C.R. metal film resistor Excellent long term stability Meets or exceeds IEC 60 115-1, JIS C 5201-1 Rated ambient temperature: +70C Operating temperature range: -55C ... +155C TYPE L SN 3A SN 3D 14.1 2 16.5 2 C Max. 18.3 21.5 D d (nominal) l 4.8 1 8.4 1 1.0 38 3 DERATING CURVE Ambient temperature (C) RATING TYPE SN 3A SN 3D T.C.R. (ppm/K) C (50) D (100) L (200) D (100) L (200) POWER RATING* MAX. WORKING VOLTAGE MAX. OVERLOAD VOLTAGE DIELECTRIC WITHSTANDING VOLTAGE 1W 500 V 2W 1000 V 1000 V RESISTANCE RANGE E24 * E192 E24 * E96 E24 D (0.5%) F (1%) G (2%) 10 ... 1 M 10 ... 1 M 4.99 ... 10 10 ... 1.5 M - - 10 ... 1 M 1 ... 10 10 ... 1.5 M 5.1 ... 10 - 10 ... 1 M - 10 ... 1.5 M - * For resistors operated in ambient temperature over +70C, power rating shall be derated like shown in above DERATING CURVE". EUROPE GmbH * Kaddenbusch 6 * D-25578 Dageling / ITZEHOE * PHONE: +49 (0) 48 21 / 89 89-0 * FAX: +49 (0) 48 21/ 89 89 89 * Internet: www.koaeurope.de Revision: 12. Dec. 2005 Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. SN