Details, datasheet, quote on part number: BF420
PartBF420
CategoryDiscrete => Transistors => Bipolar => General Purpose
DescriptionSmall Signal NPN Transistor
CompanyST Microelectronics, Inc.
DatasheetDownload BF420 datasheet
Cross ref.Similar parts: BFN18, MPSA42G, MPSA42RLRAG, LP395, 2SC1573, 2SC1573A, 2SC2551, BF420L, BF422, BF422L
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Features, Applications

SILICON EPITAXIAL PLANAR NPN HIGH VOLTAGE TRANSISTOR TO-92 PACKAGE SUITABLE FOR THROUGH-HOLE PCB ASSEMBLY THE PNP COMPLEMENTARY TYPE BF421 TO-92 Bulk TO-92 Ammopack

APPLICATIONS s VIDEO AMPLIFIER CIRCUITS (RGB CATHODE CURRENT CONTROL) s TELEPHONE WIRELINE INTERFACE (HOOK SWITCHES, DIALER CIRCUITS)

Symbol V CBO V CEO V EBO CM P tot T stg Tj Parameter Collector-Base Voltage = 0) Collector-Emitter Voltage = 0) Emitter-Base Voltage = 0) Collector Current Collector Peak Current < 5 ms) Total Dissipation 25 C Storage Temperature Max. Operating Junction Temperature

R thj-amb Thermal Resistance Junction-Ambient R thj-Case Thermal Resistance Junction-Case Max 150 50

ELECTRICAL CHARACTERISTICS (Tcase 25 oC unless otherwise specified)

Symbol I CBO Parameter Collector Cut-off Current = 0) Emitter Cut-off Current = 0) Test Conditions o C Min. Typ. Max. Unit nA V

V (BR)CEO Collector-Emitter Breakdown Voltage 0) V (BR)CBO Collector-Base Breakdown Voltage = 0) Emitter-Base Breakdown Voltage = 0) Collector-Emitter Saturation Voltage Base-Emitter Saturation Voltage DC Current Gain Transition Frequency Collector-Base Capacitance

Emitter-Base = 0 Capacitance Pulsed: Pulse duration = 300 s, duty cycle 2 %

 

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