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BF494B Datasheet(PDF) 2 Page - NXP Semiconductors

Part # BF494B
Description  NPN medium frequency transistors
PDF  8 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

BF494B Datasheet(HTML) 2 Page - NXP Semiconductors

  BF494B Datasheet HTML 1Page - NXP Semiconductors BF494B Datasheet HTML 2Page - NXP Semiconductors BF494B Datasheet HTML 3Page - NXP Semiconductors BF494B Datasheet HTML 4Page - NXP Semiconductors BF494B Datasheet HTML 5Page - NXP Semiconductors BF494B Datasheet HTML 6Page - NXP Semiconductors BF494B Datasheet HTML 7Page - NXP Semiconductors BF494B Datasheet HTML 8Page - NXP Semiconductors  
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1997 Jul 08
2
Philips Semiconductors
Product specification
NPN medium frequency transistors
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
DESCRIPTION
1
base
2
emitter
3
collector
Fig.1
Simplified outline (TO-92; SOT54)
and symbol.
handbook, halfpage1
3
2
MAM258
3
1
2
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
VCBO
collector-base voltage
open emitter
−
30
V
VCEO
collector-emitter voltage
open base
−
20
V
ICM
peak collector current
−
30
mA
Ptot
total power dissipation
Tamb ≤ 25 °C
−
300
mW
hFE
DC current gain
IC = 1 mA; VCE =10V
BF494
67
220
BF495
35
125
fT
transition frequency
IC = 1 mA; VCE = 10 V; f = 100 MHz
120
−
MHz



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