BF421
Rev.
E Mar.
-2016
DATA SHEET
/ Descriptions TO-92
PNP 。Silicon
PNP transistor in a TO-92 Plastic Package.
/ Features
, BF420 。 High voltage, complementary pair with BF420.
/ Applications
,。 High voltage switching and amplifier ,color TV chrome output.
/ Equivalent Circuit
/ Pinning
1 23
PIN1：Base
PIN 2：Collector
PIN 3：Emitter
/ hFE Classifications & Marking 。See Marking Instructions.
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BF421
Rev.
E Mar.
-2016
DATA SHEET
/ Absolute Maximum Ratings(Ta=25℃)
Parameter Collector to Base Voltage Collector to Emitter Voltage Emitter to Base Voltage Collector Current - Continuous Peak Collector Current Collector Power Dissipation Peak Base Current...