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NXP Semiconductors |
DISCRETE SEMICONDUCTORS
DATA SHEET
book, halfpage
M3D186
BF420; BF422
NPN high-voltage transistors
Product specification
Supersedes data of September 1994
File under Discrete Semiconductors, SC04
1996 Dec 09
Philips Semiconductors
NPN high-voltage transistors
Product specification
BF420; BF422
FEATURES
• Low feedback capacitance.
APPLICATIONS
• Class-B video output stages in colour television and
professional monitor equipment.
DESCRIPTION
NPN transistors in a TO-92 plastic package.
PNP complements: BF421 and BF423.
PINNING
PIN
1
2
3
base
collector
emitter
DESCRIPTION
handbook, halfpage1
2
3
1
MAM259
2
3
Fig.1 Simplified outline (TO-92) and symbol.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
VCBO
collector-base voltage
BF420
BF422
VCEO
collector-emitter voltage
BF420
BF422
ICM peak collector current
Ptot total power dissipation
hFE DC current gain
Cre feedback capacitance
fT transition frequency
CONDITIONS
open emitter
open base
Tamb ≤ 25 °C
IC = 25 mA; VCE = 20 V
IC = ic = 0; VCE = 30 V; f = 1 MHz
IC = 10 mA; VCE = 10 V; f = 100 MHz
MIN. MAX. UNIT
− 300 V
− 250 V
− 300 V
− 250 V
− 100 mA
− 830 mW
50 −
− 1.6 pF
60 −
MHz
1996 Dec 09
2
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