blf278-01 NXP Semiconductors, blf278-01 Datasheet - Page 18

• Manufacturer Part Number: blf278-01
• Description: Vhf Push-pull Power Mos Transistor
• Manufacturer: NXP Semiconductors

Philips Semiconductors
2003 Sep 19
handbook, full pagewidth
VHF push-pull power MOS transistor
Dimensions in mm.
The circuit and components are situated on one side of the PTFE fibre-glass board, the other side being fully metallized to serve as an earth.
Earth connections are made by means of copper straps for a direct contact between upper and lower sheets.
50
input
strap
strap
L1
Fig.22 Printed-circuit board and component layout for 225 MHz class-AB test circuit.
V DD1
Hollow
rivets
R1
L3
L2
119
R11
C2
C1
C3
C38
C4
slider R7
slider R2
IC1
C35
C5
L4
L5
C13 R6
C10 R3
C6
C36
C37
C12
C11
to R2,R7
L6
L7 L9
strap
strap
R4
R5
C16
C17
L8
C9
C7
C8
L10
L11
18
C20
L12
L13
C18
C15
L16
L15
C21
L18
L19
strap
strap
C24
L14
L14
L17
L17
R8
R9
C25
C14
C28
C19
V DD2
V DD1
L20
L21
C29
C22
C27
C30
C26
C23
C32
C31
130
L23
C33
C34
R10
L22
L24
Hollow
rivets
Product Specification
MBC436
BLF278
strap
strap
50
output
100