SD1285 RF & MICROWAVE TRANSISTORS HF SSB APPLICATIONS .. .. .. 30 MHz 12.5 VOLTS COMMON EMITTER GOLD METALLIZATION IMD − 30 dB POUT = 20 W MIN. WITH 15 dB GAIN .380 4LFL (M113) epoxy sealed ORDER CODE SD1285 BRANDING SD1285 PIN CONNECTION DESCRIPTION The SD1285 is a 12.5 V epitaxial NPN planar transistor designed primarily for SSB communications. This device utilizes emitter ballasting to achieve extreme ruggedness under severe operating conditions. 1. Collector 2. Emitter 3. Base 4. Emitter ABSOLUTE MAXIMUM RATINGS (T case = 25 ° C) Symbol Parameter Value Unit VCBO Collector-Base Voltage 36 V VCEO Collector-Emitter Voltage 18 V VEBO Emitter-Base Voltage 4.0 V Device Current 4.5 A Power Dissipation 80 W IC PDISS TJ Junction Temperature +200 °C TSTG Storage Temperature − 65 to +150 °C 2.2 °C/W THERMAL DATA RTH(j-c) Junction-Case Thermal Resistance October 1992 1/3 SD1285 ELECTRICAL SPECIFICATIONS (T case = 25 ° C) STATIC Symbol Value Test Conditions Min. Typ. Max. Unit BVCBO IC = 50mA IE = 0mA 36 — — V BVCES IC = 50mA VBE = 0V 36 — — V BVCEO IC = 50mA IB = 0mA 18 — — V BVEBO IE = 5mA IC = 0mA 4.0 — — V ICES VCE = 15V IE = 0mA — — 5 mA hFE VCE = 5V IC = 1A 10 — 200 — DYNAMIC Symbol Min. Typ. Max. Unit POUT f = 30 MHz VCC = 12.5 V ICQ = 25 mA 20 — — W GP f = 30 MHz VCC = 12.5 V ICQ = 25 mA 15 18 — dB IMD f = 30 MHz VCC = 12.5 V ICQ = 25 mA — — − 30 dB COB f = 1 MHz VCB = 12.5 V — 100 — pF Note: 2/3 Value Test Conditions PI N = 0.65 W SD1285 PACKAGE MECHANICAL DATA Ref.: Dwg. No.12-0113 Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectonics. © 1994 SGS-THOMSON Microelectronics - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A 3/3