BF494B Philips Semiconductors, BF494B Datasheet - Page 2

• Manufacturer Part Number: BF494B
• Description: NPN medium frequency transistors
• Manufacturer: Philips Semiconductors

Philips Semiconductors
FEATURES
APPLICATIONS
DESCRIPTION
NPN medium frequency transistor in a TO-92; SOT54
plastic package.
1997 Jul 08
QUICK REFERENCE DATA
Low current (max. 30 mA)
Low voltage (max. 20 V).
HF applications in radio and television receivers
FM tuners
Low noise AM mixer-oscillators
IF amplifiers in AM/FM receivers.
NPN medium frequency transistors
V
V
I
P
h
f
SYMBOL
CM
T
FE
CBO
CEO
tot
collector-base voltage
collector-emitter voltage
peak collector current
total power dissipation
DC current gain
transition frequency
BF494
BF495
PARAMETER
open emitter
open base
T
I
I
C
C
amb
= 1 mA; V
= 1 mA; V
25 C
CE
CE
CONDITIONS
= 10 V
= 10 V; f = 100 MHz
2
PINNING
handbook, halfpage
PIN
1
2
3
Fig.1
1
2
3
Simplified outline (TO-92; SOT54)
and symbol.
base
emitter
collector
67
35
120
MIN.
DESCRIPTION
BF494; BF495
Product specification
MAM258
30
20
30
300
220
125
MAX.
1
V
V
mA
mW
MHz
3
2
UNIT