SD1274 RF & MICROWAVE TRANSISTORS VHF MOBILE APPLICATIONS .. .. 160 MHz 13.6 VOLTS COMMON EMITTER P OUT = 30 W MIN. WITH 10 dB GAIN .380 4L STUD (M135) epoxy sealed ORDER CODE SD1274 BRANDING SD1274 PIN CONNECTION DESCRIPTION The SD1274 is a 13.6 V Class C epitaxial silicon NPN planar transistor designed primarily for VHF communications. The SD1274 utilizes an emitter ballasted die geometry to withstand severe load mismatch conditions. 1. Collector 2. Base 3. Emitter 4. Base ABSOLUTE MAXIMUM RATINGS (T case = 25 ° C) Symbol Parameter Value Unit VCBO Collector-Base Voltage 36 V VCEO Collector-Emitter Voltage 16 V VCES Collector-Emitter Voltage 36 V VEBO Emitter-Base Voltage 4.0 V Device Current 8.0 A Power Dissipation 70 W IC PDISS TJ Junction Temperature +200 °C T STG Storage Temperature − 65 to +150 °C 1.2 °C/W THERMAL DATA RTH(j-c) Junction-Case Thermal Resistance June 1993 1/4 SD1274 ELECTRICAL SPECIFICATIONS (T case = 25 ° C) STATIC Symbol Value Test Conditions Min. Typ. Max. Unit BVCES IC = 15mA VBE = 0mA 36 — — V BVCEO IC = 50mA IB = 0mA 16 — — V BVEBO IE = 5mA IC = 0mA 4.0 — — V I CBO VCB = 15V IE = 0mA — — 5 mA hFE VCE = 5V IC = 250mA 20 — — — DYNAMIC Symbol Value Test Conditions Min. Typ. Max. Unit POUT f = 160 MHz PIN = 3.0 W VCE = 13.6 V 30 — — W GP f = 160 MHz PIN = 3.0 W VCE = 13.6 V 10 — — dB COB f = 1 MHz VCB = 15 V — 95 — pF TYPICAL PERFORMANCE POWER OUTPUT vs SUPPLY VOLTAGE (136 MHz) 2/4 POWER OUTPUT vs SUPPLY VOLTAGE (150 MHz) SD1274 TYPICAL PERFORMANCE (cont’d) POWER OUTPUT vs SUPPLY VOLTAGE (175 MHz) POWER GAIN vs FREQUENCY POWER OUTPUT vs POWER INPUT IMPEDANCE DATA FREQ. 175 MHz PIN = 3.0 W VCE = 12.5 V ZIN (Ω) 1.0 + j 0.4 Z CL (Ω) 2.3 + j 0.1 3/4 SD1274 PACKAGE MECHANICAL DATA Ref.: Dwg. No.12-0135 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 ascritical 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 4/4