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NXP Semiconductors |
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
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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