Outline Dimensions
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Vishay Semiconductors
D-PAK (TO-252AA)
DIMENSIONS
in millimeters and inches
(5)
E
b3
Ø2
(3)
A
0.010 M C A B
L3 (3)
4
B
D (5)
1
2
3
L4
Ø1
Seating
plane
H
D1
0.488 (12.40)
0.409 (10.40)
A
C
c2
A
Pad layout
0.265
MIN.
(6.74)
E1
4
0.245
MIN.
(6.23)
3
2
1
(2) L5
b
b2
2x e
Detail “C”
c
0.010 M C A B
Detail “C”
Rotated 90 °CW
Scale: 20:1
Lead tip
Gauge
plane
L2
Ø
C
C
L
0.089
MIN.
(2.28)
A
0.06
MIN.
(1.524)
0.093 (2.38)
0.085 (2.18)
(L1)
H (7)
C Seating
plane
A1
SYMBOL
A
A1
b
b2
b3
c
c2
D
D1
E
E1
MILLIMETERS
MIN.
2.18
-
0.64
0.76
4.95
0.46
0.46
5.97
5.21
6.35
4.32
MAX.
2.39
0.13
0.89
1.14
5.46
0.61
0.89
6.22
-
6.73
-
INCHES
MIN.
0.086
-
0.025
0.030
0.195
0.018
0.018
0.235
0.205
0.250
0.170
MAX.
0.094
0.005
0.035
0.045
0.215
0.024
0.035
0.245
-
0.265
-
NOTES
SYMBOL
e
H
L
L1
MILLIMETERS
MIN.
9.40
1.40
MAX.
10.41
1.78
2.29 BSC
INCHES
MIN.
0.370
0.055
MAX.
0.410
0.070
0.090 BSC
NOTES
2.74 BSC
0.51 BSC
0.89
-
1.14
0°
0°
25°
1.27
1.02
1.52
10°
15°
35°
0.108 REF.
0.020 BSC
0.035
-
0.045
0°
0°
25°
0.050
0.040
0.060
10°
15°
35°
2
3
3
L2
L3
L4
5
3
5
3
L5
Ø
Ø1
Ø2
Notes
(1)
Dimensioning and tolerancing as per ASME Y14.5M-1994
(2)
Lead dimension uncontrolled in L5
(3)
Dimension D1, E1, L3 and b3 establish a minimum mounting surface for thermal pad
(4)
Section C - C dimension apply to the flat section of the lead between 0.13 and 0.25 mm (0.005 and 0.10") from the lead tip
(5)
Dimension D, and E do not include mold flash. Mold flash shall not exceed 0.127 mm (0.005") per side. These dimensions are measured at
the outermost extremes of the plastic body
(6)
Dimension b1 and c1 applied to base metal only
(7)
Datum A and B to be determined at datum plane H
(8)
Outline conforms to JEDEC outline TO-252AA
Revision: 05-Dec-12
Document Number: 95016
1
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