Datasheet MSC81400M Datasheet (SGS Thomson Microelectronics)

RF & MICROWAVE TRANSISTORS

.REFRACTORY\GOLD METALLIZATION

.RUGGEDIZED VSWR 25:1

.INTERNAL INPUT/OUTPUT MATCHING

.LOW THERMAL RESISTANCE

.METAL/CERAMIC HERMETIC PACKAGE

.P

= 400 W MIN. WITH 6.5 dB GAIN

OUT

.400 x .500 2LFL (S038)

ORDER CO DE

MSC81400M

PIN CONNECTION

MSC81400M

AVIONICS APPLICATIONS

hermetical ly sealed

BRANDING

81400M

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.

ABSOLUTE MAXIMUM RATINGS (T

Symbol Parameter Value Unit

P

DISS

I

C

V

CC

T

J

T

STG

THERMAL DATA

R

TH(j-c)

*Applies only to rated RF amplifier operation

Power Dissipation* (TC ≤ 80˚C) 1000 W
Device Current* 28 A
Collector-Supply Voltage* 55 V
Junction Temperature (Pulsed RF Operation) 250
Storage Temperature

Junction-Case Thermal Resistance* 0.12

case

= 25°C)

1. Collector 3. Emitter

2. Base 4. Base

65 to +200

−

°
°

°

C/W

C
C

October 1992

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MSC81400M

ELECTRICAL SPECIFICATIONS (T

case

= 25°C)

STATIC

Symbol Test Condition s

BV
BV
BV

I

CBO
EBO
CER

CES

h

FE

IC = 15mA IE = 0mA 65 — — V
IE = 1mA IC = 0mA 3.5 — — V
IC = 50mA RBE = 10Ω 65 — — V
VCE = 50V — — 35 mA
VCE = 5V IC = 1A 15 — 120 —

Min. Typ. Max.

Valu e

DYNAMIC

Symbol Test C ond iti ons

P

OUT

η

cf = 1025 — 1150 MHz PIN = 90 W VCC = 50 V 40 — — %

G

P

Note: Pulse Widt h=10µSec

f = 1025 — 1150 MHz PIN = 90 W VCC = 50 V 400 450 — W

f = 1025 — 1150 MHz PIN = 90 W VCC = 50 V 6.5 — — dB

Duty Cycle=1%

Value

Min. Typ. Max.

Unit

Unit

TEST CIRCUIT

Ref.: Dwg. No. C125363

All dimensions are in inches.

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PACKAGE MECHANICAL DATA

MSC81400M

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

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