BLF145 NXP Semiconductors, BLF145 Datasheet - Page 8

• Manufacturer Part Number: BLF145
• Description: Silicon N-channel enhancement mode vertical D-MOS transistor designed for SSB transmitter applications in the HF frequency range
• Manufacturer: NXP Semiconductors

NXP Semiconductors
List of components (see Fig.11)
Notes
1. American Technical Ceramics (ATC) capacitor, type 100B or other capacitor of the same quality.
2. The striplines are on a double copper-clad printed circuit board, with epoxy dielectric (
handbook, full pagewidth
C1, C3, C8, C9
C2, C10
C4, C7
C5, C6
C11
C12
L1
L2, L3
L4
L5
L6
R1
R2
COMPONENT
HF power MOS transistor
f = 28 MHz.
input
50
film dielectric trimmer
multilayer ceramic chip capacitor; note 1
multilayer ceramic chip capacitor
multilayer ceramic chip capacitor; note 1
multilayer ceramic chip capacitor
electrolytic capacitor
12 turns enamelled 0.5 mm copper wire
stripline; note 2
14 turns enamelled 1 mm copper wire
9 turns enamelled 1 mm copper wire
grade 3B Ferroxcube wideband HF choke
0.25 W metal film resistor
0.25 W metal film resistor
C1
DESCRIPTION
C2
C3
L1
Fig.11 Test circuit for class-A operation.
V G
R1
C4
L2
Rev. 04 - 5 January 2007
D.U.T.
L3
C7
7 to 100 pF
39 pF
100 nF
27 pF
3
2.2 F, 63 V
307 nH
30
1039 nH
305 nH
26
10
L4
VALUE
100 nF
R2
L6
C5
C6
L5
length 8 mm;
int. dia. 4 mm
length 15
length 14 mm;
int. dia. 9 mm
length 10 mm;
int. dia. 6 mm
DIMENSIONS
C11
C8
C10
C9
C12
6 mm
r
V D
= 4.5), thickness 1.6 mm.
MGP042
2222 809 07015
2222 852 47104
2222 852 47104
2222 030 38228
4312 020 36640
Product specification
output
CATALOGUE NO.
50
BLF145
.
8 of 15