BF257 Datasheet, PDF (1/5 Pages) STMicroelectronics – HIGH VOLTAGE VIDEO AMPLIFIERS

BF257
BF258-BF259
HIGH VOLTAGE VIDEO AMPLIFIERS
DESCRIPTION
The BF257, BF258 and BF259 are silicon planar
epitaxial NPN transistors in Jedec TO-39 metal
case. They are particularly designed for videooutput
stages in CTV and MTV sets, class A audio output
stages and drivers for horizontal deflection circuits.
TO-39
INTERNAL SCHEMATIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
V_CBO
V_CEO
V_EBO
I_C
I _CM
P_{t ot}
T_stg
T_j
Collector-base Voltage (I_E = 0)
Collector-emitter Voltage (I_B = 0)
Emitter-base Voltage (I_C = 0)
Collector Current
Collector Peak Current
Total Power Dissipation at T_amb ≤ 50 °C
Storage Temperature
Junction Temperature
October 1988
Value
BF257 BF258 BF259
160
250
300
160
250
300
5
100
200
5
– 55 to 200
200
Unit
V
V
V
mA
mA
W
°C
°C
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