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CM4957

Central Semiconductor
Part Number CM4957
Manufacturer Central Semiconductor
Description PNP HIGH FREQUENCY SILICON TRANSISTOR
Published Apr 5, 2016
Detailed Description DATA SHEET CM4957 PNP HIGH FREQUENCY SILICON TRANSISTOR TO-72 CASE DESCRIPTION The CENTRAL SEMICONDUCTOR CM4957 is a Si...
Datasheet PDF File CM4957 PDF File

CM4957
CM4957

Overview
DATA SHEET CM4957 PNP HIGH FREQUENCY SILICON TRANSISTOR TO-72 CASE DESCRIPTION The CENTRAL SEMICONDUCTOR CM4957 is a Silicon PNP RF Transistor, mounted in a hermetically sealed package, designed for high frequency amplifier and non-saturated switching applications.
This device is a replacement for the 2N4957.
MAXIMUM RATINGS (TA=25°C) Collector-Base Voltage Collector-Emitter Voltage Emitter-Base Voltage Collector Current - Continuous Power Dissipation Power Dissipation (TC=25°C) Operating and Storage Junction Temperature SYMBOL VCBO VCEO VEBO IC PD PD TJ,Tstg 30 25 3.
0 30 200 300 -65 to +200 UNITS V V V mA mW mW °C ELECTRICAL CHARACTERISTICS (TA=25°C unless otherwise noted) SYMBOL ICBO BVCBO BVCEO BVEBO hFE fT Ccb hfe Gpe TEST CONDITIONS VCB=10V IC=100µA IC=1.
0mA IE=100µA VCE=10V, IC=2.
0mA VCE=10V, IC=2.
0mA, f=100MHz VCB=10V, IE=0, f=1.
0MHz VCE=10V, IC=2.
0mA, f=1.
0kHz VCE=10V, IC=4.
0mA, f=450MHz MIN TYP MAX 100 30 25 3.
0 20 150 1200 2500 1.
6 2.
0 20 200 17 25 UNITS nA V V V MHz pF dB (Continued) R2 CM4957 PNP HIGH FREQUENCY TRANSISTOR TO-72 CASE - MECHANICAL OUTLINE A B C D E F LEAD #2 LEAD #1 J 45° G H LEAD #3 LEAD #4 K R1 SYMBOL A (DIA) B (DIA) C D E F (DIA) G (DIA) H J K DIMENSIONS INCHES MILLIMETERS MIN MAX MIN MAX 0.
209 0.
230 5.
31 5.
84 0.
175 0.
195 4.
45 4.
95 - 0.
030 - 0.
76 0.
170 0.
210 4.
32 5.
33 0.
500 - 12.
70 - 0.
016 0.
019 0.
41 0.
48 0.
100 2.
54 0.
050 1.
27 0.
036 0.
046 0.
91 1.
17 0.
028 0.
048 0.
71 1.
22 TO-72 (REV: R1) Lead Code: 1) Emitter 2) Base 3) Collector 4) Case ...


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