Datasheet Details
| Part number | CM4957 |
|---|---|
| Manufacturer | Central Semiconductor |
| File Size | 104.70 KB |
| Description | PNP HIGH FREQUENCY SILICON TRANSISTOR |
| Datasheet | CM4957-CentralSemiconductor.pdf |
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Overview: DATA SHEET CM4957 PNP HIGH FREQUENCY SILICON TRANSISTOR TO-72.
| Part number | CM4957 |
|---|---|
| Manufacturer | Central Semiconductor |
| File Size | 104.70 KB |
| Description | PNP HIGH FREQUENCY SILICON TRANSISTOR |
| Datasheet | CM4957-CentralSemiconductor.pdf |
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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
| Part Number | Description |
|---|---|
| CM4209 | PNP SILICON TRANSISTOR |