blf278-01 NXP Semiconductors, blf278-01 Datasheet - Page 17

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

Philips Semiconductors
Notes
1. American Technical Ceramics capacitor, type 100B or other capacitor of the same quality.
2. L1, L3 to L13, L18 to L22 and L24 are microstriplines on a double copper-clad printed-circuit board, with fibre-glass
3. L2 and L23 are soldered on to striplines L1 and L24 respectively.
2003 Sep 19
L14, L17
L15, L16
L18, L19
L20, L21
R1
R2, R7
R3, R6
R4, R5
R8, R9
R10
R11
IC1
VHF push-pull power MOS transistor
COMPONENT
reinforced PTFE dielectric (
2
wideband HF chokes in parallel
1
wire
stripline; note 2
stripline; note 2
metal film resistor
10 turns potentiometer
metal film resistor
metal film resistor
metal film resistor
metal film resistor
metal film resistor
voltage regulator 78L05
3
4
grade 3B Ferroxcube
turns enamelled 2 mm copper
DESCRIPTION
r
= 2.2), thickness
1
16
inch; thickness of copper sheet 2
40 nH
43
43
10 , 0.4 W
50 k
1 k , 0.4 W
2
parallel, 0.4 W
10
4
parallel, 1 W
5.11 k
17
5.62
42.2
VALUE
5%, 1 W
1 W
in
in
int. dia. 10 mm
leads 2
space 1 mm
length 13 mm
width 6 mm
length 29.5 mm
width 6 mm
DIMENSIONS
7 mm
35 m.
4312 020 36642
Product Specification
CATALOGUE NO.
BLF278