PN4258 / MMBT4258
Discrete POWER & Signal
Technologies
PN4258
MMBT4258
C
E
C
B
TO-92
E
SOT-23
Mark: 78
B
PNP Switching Transistor
This device is designed for very high speed saturate switching
at collector currents to 100 mA. Sourced from Process 65.
Absolute Maximum Ratings*
Symbol
V
CEO
V
CBO
V
EBO
I
C
T
J
, T
stg
Collector-Emitter Voltage
Collector-Base Voltage
Emitter-Base Voltage
Collector Current - Continuous
TA = 25掳C unless otherwise noted
Parameter
Value
12
12
4.5
200
-55 to +150
Units
V
V
V
mA
掳C
Operating and Storage Junction Temperature Range
*
These ratings are limiting values above which the serviceability of any semiconductor device may be impaired.
NOTES:
1)
These ratings are based on a maximum junction temperature of 150 degrees C.
2)
These are steady state limits. The factory should be consulted on applications involving pulsed or low duty cycle operations.
Thermal Characteristics
Symbol
P
D
R
胃
JC
R
胃JA
TA = 25掳C unless otherwise noted
Characteristic
Total Device Dissipation
Derate above 25掳C
Thermal Resistance, Junction to Case
Thermal Resistance, Junction to Ambient
PN4258
350
2.8
125
357
Max
*MMBT4258
225
1.8
556
Units
mW
mW/掳C
掳C/W
掳C/W
*
Device mounted on FR-4 PCB 1.6" X 1.6" X 0.06."
漏
1997 Fairchild Semiconductor Corporation
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