BF420
BF420 is SMALL SIGNAL NPN TRANSISTOR manufactured by STMicroelectronics.
®
SMALL SIGNAL NPN TRANSISTOR
PRELIMINARY DATA
Ordering Code BF420
..
Marking BF420 BF420
Package / Shipment TO-92 / Bulk TO-92 / Ammopack
BF420-AP s s s
SILICON EPITAXIAL PLANAR NPN HIGH VOLTAGE TRANSISTOR TO-92 PACKAGE SUITABLE FOR THROUGH-HOLE PCB ASSEMBLY THE PNP PLEMENTARY TYPE IS BF421 TO-92 Bulk TO-92 Ammopack
APPLICATIONS s VIDEO AMPLIFIER CIRCUITS (RGB CATHODE CURRENT CONTROL) s TELEPHONE WIRELINE INTERFACE (HOOK SWITCHES, DIALER CIRCUITS)
INTERNAL SCHEMATIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol V CBO V CEO V EBO IC I CM P tot T stg Tj Parameter Collector-Base Voltage (I E = 0) Collector-Emitter Voltage (I B = 0) Emitter-Base Voltage (I C = 0) Collector Current Collector Peak Current (t p < 5 ms) Total Dissipation at T C = 25 C Storage Temperature Max. Operating Junction Temperature o
Value 300 300 5 500 600 830 -65 to 150 150
Unit V V V m A m A m W o o
February 2003
1/5
THERMAL DATA
R thj-amb
- Thermal Resistance Junction-Ambient R thj-Case
- Thermal Resistance Junction-Case Max Max 150 50 o o
C/W C/W
ELECTRICAL CHARACTERISTICS (Tcase = 25 o C unless otherwise specified)
Symbol I CBO Parameter Collector Cut-off Current (I E = 0) Emitter Cut-off Current (I C = 0) Test Conditions V CB = 200 V V CB = 200 V V CB = 300 V V EB = 5 V I C = 10 m A 300 T C = 150 o C Min. Typ. Max. 10 10 100 50 Unit n A µA µA n A V
..
I EBO
V (BR)CEO ∗ Collector-Emitter Breakdown Voltage (I B = 0) V (BR)CBO Collector-Base Breakdown Voltage (I E = 0) Emitter-Base Breakdown Voltage (I C = 0) Collector-Emitter Saturation Voltage Base-Emitter Saturation Voltage DC Current Gain Transition Frequency Collector-Base Capacitance
I C = 100 µ A
V (BR)EBO
I E = 100 µ A
V CE(sat) ∗ V BE(sat) ∗ h FE ∗ f T C CBO C EBO
I C = 30 m A I C = 30 m A I C = 25 m A
I B = 5 m A I B = 5 m A V CE = 20 V f =20 MHz f = 1MHz 50 60 6 22
0.6 1.2
I C = 10 m A V CE = 10 V IE = 0 V CB = 10 V
MHz p F p...
