BLT71 Philips Semiconductors, BLT71 Datasheet - Page 7

• Manufacturer Part Number: BLT71
• Description: UHF power transistor
• Manufacturer: Philips Semiconductors

Philips Semiconductors
List of components (see Figs 6 and 7).
Notes
1. American Technical Ceramics type 100A or capacitor of same quality.
2. Tekelec Giga-trim, type 37271.
3. The striplines are on a double copper-clad printed-circuit board, with DUROID dielectric (
1997 Oct 14
COMPONENT
C1, C12,
C13, C15
C2, C4, C8,
C10
C3
C5
C6
C7
C9
C11
C14, C16
L1, L10
L2
L3
L4
L5
L6
L7
L8
L9
L11
L12
L13, L14
R1
R2, R3, R4
TR1
TR2
UHF power transistor
thickness 0.79 mm, thickness of the copper sheet 2 x 35 m.
multilayer ceramic chip capacitor; note 1
Giga-Trim capacitor; note 2
multilayer ceramic chip capacitor; note 1
multilayer ceramic chip capacitor; note 1
multilayer ceramic chip capacitor; note 1
multilayer ceramic chip capacitor; note 1
multilayer ceramic chip capacitor; note 1
multilayer ceramic chip capacitor; note 1
multilayer ceramic chip capacitor; note 1
stripline; note 3
stripline; note 3
stripline; note 3
stripline; note 3
stripline; note 3
stripline; note 3
stripline; note 3
stripline; note 3
stripline; note 3
10 turns 1 mm enamelled copper wire
2 turns 1 mm enamelled copper wire
4S2 wideband RF choke
metal film resistor
metal film resistor
device under test
NPN transistor
DESCRIPTION
7
120 pF
0.6 to 4.5 pF
4.7 pF
5.6 pF
3.9 pF
6.8 pF
7.5 pF
5.1 pF
10 nF
50
50
50
50
50
50
50
50
50
140 nH
60 nH
1.4 k ; 0.6 W
10 ; 0.6 W
BLT71/8
BD139
VALUE
10 x 2.4 mm
2 x 2.4 mm
30.4 x 2.4 mm
17.4 x 2.4 mm
6.8 x 2.4 mm
8 x 2.4 mm
19 x 2.4 mm
28 x 2.4 mm
1.6 x 2.4 mm
int. dia. = 4 mm;
lead 1 = 2.5 mm;
lead 2 = 11 mm
int. dia. = 2 mm;
leads = 2 x 7.5 mm
DIMENSIONS
r
= 2.2);
Product specification
4330 030 36301
2322 156 11402
2322 156 11009
9330 912 20112
CATALOGUE
BLT71/8
NO.