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BF494B 반도체 회로 부품 판매점

NPN medium frequency transistors



NXP Semiconductors 로고
NXP Semiconductors
BF494B 데이터시트, 핀배열, 회로
DISCRETE SEMICONDUCTORS
DATA SHEET
book, halfpage
M3D186
BF494; BF495
NPN medium frequency transistors
Product specification
Supersedes data of September 1994
File under Discrete Semiconductors, SC04
1997 Jul 08


BF494B 데이터시트, 핀배열, 회로
Philips Semiconductors
NPN medium frequency transistors
Product specification
BF494; BF495
FEATURES
Low current (max. 30 mA)
Low voltage (max. 20 V).
APPLICATIONS
HF applications in radio and television receivers
FM tuners
Low noise AM mixer-oscillators
IF amplifiers in AM/FM receivers.
DESCRIPTION
NPN medium frequency transistor in a TO-92; SOT54
plastic package.
PINNING
PIN
1
2
3
base
emitter
collector
DESCRIPTION
handbook, halfpage1
2
3
3
1
MAM258
2
Fig.1 Simplified outline (TO-92; SOT54)
and symbol.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
VCBO
VCEO
ICM
Ptot
hFE
collector-base voltage
collector-emitter voltage
peak collector current
total power dissipation
DC current gain
BF494
BF495
fT transition frequency
CONDITIONS
open emitter
open base
Tamb 25 °C
IC = 1 mA; VCE = 10 V
IC = 1 mA; VCE = 10 V; f = 100 MHz
MIN.
MAX.
30
20
30
300
UNIT
V
V
mA
mW
67 220
35 125
120
MHz
1997 Jul 08
2




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