BFP 405
Semiconductor Group
Sep-09-19981
SIEGET

25
NPN Silicon RF Transistor
• For low current applications
• For oscillators up to 12 GHz
• Noise figure F = 1.15 dB at 1.8 GHz
outstanding G
ms
= 22 dB at 1.8 GHz
• Transition frequency f
T
= 25 GHz
• Gold metalization for high reliability
• SIEGET

25 - Line
Siemens Grounded Emitter Transistor
25 GHz f
T
- Line
VPS05605
4
2
1
3
ESD: Electrostatic discharge sensitive device, observe handling precaution!
Type Marking Ordering Code Pin Configuration Package
BFP 405 ALs Q62702-F1592 1 = B 2 = E 3 = C 4 = E SOT-343
Maximum Ratings
Parameter Symbol Value Unit
Collector-emitter voltage
V
CEO
V4.5
V
CBO
15Collector-base voltage
V
EBO
Emitter-base voltage 1.5
Collector current 12 mA
I
C
I
B
1Base current
mW55
Total power dissipation, T
S
£ 120 °C P
tot
Junction temperature
T
j
150 °C
T
A
-65 ...+150Ambient temperature
Storage temperature
T
stg
-65 ...+150
Thermal Resistance
Junction - soldering point
1)
R
thJS
£ 530
K/W
1) TS is measured on the collector lead at the soldering point to the pcb
Semiconductor Group 1 1998-11-01