MSC81400M RF & MICROWAVE TRANSISTORS AVIONICS APPLICATIONS .. .. .. REFRACTORY\GOLD METALLIZATION RUGGEDIZED VSWR 25:1 INTERNAL INPUT/OUTPUT MATCHING LOW THERMAL RESISTANCE METAL/CERAMIC HERMETIC PACKAGE POUT = 400 W MIN. WITH 6.5 dB GAIN .400 x .500 2LFL (S038) hermetically sealed ORDER CODE MSC81400M BRANDING 81400M PIN CONNECTION DESCRIPTION The MSC81400M "Super Power" transistor is a high peak pulse power device specifically designed for DME/TACAN avionics applications. This device is capable of withstanding a minimum 25:1 load mismatch condition at any phase angle under full rated conditions. The MSC81400M is housed in the unique BIGPAC™ hermetic metal/ceramic package with internal input/output matching structures. 1. Collector 2. Base 3. Emitter 4. Base ABSOLUTE MAXIMUM RATINGS (T case = 25 ° C) Symbol PDISS IC VCC TJ TSTG Parameter Value Unit 1000 W Device Current* 28 A Collector-Supply Voltage* 55 V Junction Temperature (Pulsed RF Operation) 250 °C − 65 to +200 °C 0.12 °C/W Power Dissipation* (TC ≤ 80˚C) Storage Temperature THERMAL DATA RTH(j-c) Junction-Case Thermal Resistance* *Applies only to rated RF amplifier operation October 1992 1/3 MSC81400M ELECTRICAL SPECIFICATIONS (T case = 25 ° C) STATIC Symbol Value Test Conditions Min. Typ. Max. Unit BVCBO IC = 15mA IE = 0mA 65 — — V BVEBO IE = 1mA IC = 0mA 3.5 — — V BVCER IC = 50mA RBE = 10Ω 65 — — V ICES VCE = 50V — — 35 mA hFE VCE = 5V 15 — 120 — IC = 1A DYNAMIC Symbol Min. Typ. Max. Unit POUT ηc f = 1025 — 1150 MHz PIN = 90 W VCC = 50 V 400 450 — W f = 1025 — 1150 MHz PIN = 90 W VCC = 50 V 40 — — % GP f = 1025 — 1150 MHz PIN = 90 W VCC = 50 V 6.5 — — dB Note: Pulse Width Duty Cycle = = 10 µ Sec 1% TEST CIRCUIT Ref.: Dwg. No. C125363 All dimensions are in inches. 2/3 Value Test Conditions MSC81400M PACKAGE MECHANICAL DATA 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