BLF521 NXP Semiconductors, BLF521 Datasheet - Page 9

• Manufacturer Part Number: BLF521
• Description: Silicon N-channel enhancement mode vertical D-MOS transistor designed for communications transmitter applications in the UHF frequency range
• Manufacturer: NXP Semiconductors

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Philips Semiconductors
2003 Sep 02
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UHF power MOS transistor
The circuit and components are situated on one side of the printed-circuit board, the other side being fully
metallized, to serve as a ground plane. Earth connections are made by means of copper straps and hollow rivets
for a direct contact between upper and lower sheets.
C1
strap
strap
L1
mounting
screws
(6x)
C2
L2
rivets
Fig.12 Component layout for 500 MHz test circuit.
rivets
C3
C4
L3
C7
R3
R4
C6
R2
L4
150 mm
R1
C5
9
C11
C8
L5
R6
V DS
L6
L8
L7
C10
C9
C12
C13
rivets
L9
L10
C14
strap
strap
C15
MBA381
MBA380
Product specification
BLF521
mm
70