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 140 COMMERCE DRIVE MONTGOMERYVILLE, PA 18936-1013 PHONE: (215) 631-9840 FAX: (215) 631-9855
MS1261
RF & MICROWAVE TRANSISTORS VHF MOBILE APPLICATIONS
* * * * * * *
Features
175 MHz 12.5 VOLTS POUT = 15 WATTS Gp = 12 dB MINIMUM INPUT IMPEDANCE MATCHING COMMON EMITTER CONFIGURATION
DESCRIPTION:
The MS1261 is a Class C 12.5V epitaxial silicon NPN planar transistor designed primarily for UHF communications. This devices utilizes a gold metallized, emitter ballasted die geometry for superior reliability and infinite VSWR capability.
ABSOLUTE MAXIMUM RATINGS (Tcase = 25 C)
Symbol
VCBO VCEO VCES VEBO IC PDISS TJ T STG
Parameter
Collector-Base Voltage Collector-Emitter Voltage Collector-Emitter Voltage Emitter-Base Voltage Device Current Power Dissipation Junction Temperature Storage Temperature
Value
36 18 36 4.0 2.5 34 +200 -65 to +150
Unit
V V V V A W C C
T hermal Data
RTH(J-C) Thermal Resistance Junction-case 8.75 C/W
Advanced Power Technology reserves the right to change, without notice, the specifications and information contained herein
Visit our website at WWW.ADVANCEDPOWER.COM or contact our factory direct.
MS1261
STATIC
ELECTRICAL SPECIFICATIONS (Tcase = 25 C) 25
Symbol
BVCES BVCEO BVEBO ICBO HFE IC = 50 mA IC = 15 mA IE = 2.5 mA VCE = 15 V VCE = 5 V IC = 0mA IE = 0mA IC = 250mA
Test Conditions
VBE = 0V
Value Min.
36 18 4.0 --20
Typ.
-----------
Max.
------1 200
Unit
V V V mA ---
DYNAMIC
Symbol
POUT c GP COB f = 175 MHz f = 175 MHz f = 175 MHz f = 1 MHz
Test Conditions
PIN = 1W PIN = 1W PIN = 1W VCB = 12.5V VCE = 12.5V VCE = 12.5V VCE = 12.5V
Value Min.
15 60 12 ---
Typ.
---------
Max.
------45
Unit
W % dB pf
IMPEDANCE DATA
FREQ 175 MHz POUT = 15W VCC = 12.5V ZIN() ) 1.2 - j0.4 ZCL() ) 5.2 + j1.1
Advanced Power Technology reserves the right to change, without notice, the specifications and information contained herein
Visit our website at WWW.ADVANCEDPOWER.COM or contact our factory direct.
MS1261
PACKAGE MECHANICAL DATA
Advanced Power Technology reserves the right to change, without notice, the specifications and information contained herein
Visit our website at WWW.ADVANCEDPOWER.COM or contact our factory direct.


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