
Philips Semiconductors
UHF push-pull power MOS transistor
PACKAGE OUTLINE
Flanged double-ended ceramic package; 2 mounting holes; 4 leads
Product specification
BLF544B
SOT268A
D
A
F
5
U1
B
q
C
H1
w2 M C
c
1
4
H U2
A
P
2
3
b
e
w3 M
w1 M A B
E
Q
0
5
10 mm
scale
DIMENSIONS (millimetre dimensions are derived from the original inch dimensions)
UNIT A
b
c
D
E
e
F
H
H1
p
Q
q
U1 U2 w1 w2 w3
mm
4.91
4.19
1.66
1.39
0.13 12.96 6.48
0.07 12.44 6.22
6.45
2.04 17.02 8.23
1.77 16.00 7.72
3.43
3.17
2.67
2.41
18.42
24.90
24.63
6.61
6.35
0.51
1.02
0.26
inches
0.193
0.165
0.065 0.005
0.055 0.003
0.510
0.490
0.255
0.245
0.254
0.080
0.070
0.670
0.630
0.324
0.304
0.135
0.125
0.105
0.095
0.725
0.980
0.970
0.260
0.250
0.02
0.04
0.01
OUTLINE
VERSION
IEC
SOT268A
REFERENCES
JEDEC
EIAJ
EUROPEAN
PROJECTION
ISSUE DATE
97-06-28
October 1992
11