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TO-251AA (HIGH VOLTAGE)
4
E1
Thermal PAD
E
b4
θ2
D1
4
3
4
A
A
0.010 0.25
M
C A B
L2 4
B
D
3
5
(Datum A)
L1 L3
C
C
c2
A
θ1
C
Seating
plane
L
B
B
A
3 x
b2
View
A - A
2xe
3x
b
0.010 0.25
M
C A B
Base
metal
A1
c
Plating
Lead tip
(c)
5
b1, b3
c1
5
(b,
b2)
Section B - B and C - C
MILLIMETERS
DIM.
A
A1
b
b1
b2
b3
b4
c
c1
c2
D
MIN.
2.18
0.89
0.64
0.65
0.76
0.76
4.95
0.46
0.41
0.46
5.97
MAX.
2.39
1.14
0.89
0.79
1.14
1.04
5.46
0.61
0.56
0.86
6.22
MIN.
INCHES
MAX.
0.094
0.045
0.035
0.031
0.045
0.041
0.215
0.024
0.022
0.034
0.245
DIM.
D1
E
E1
e
L
L1
L2
L3
θ1
θ2
MILLIMETERS
MIN.
5.21
6.35
4.32
2.29 BSC
8.89
1.91
0.89
1.14
0'
25'
9.65
2.29
1.27
1.52
15'
35'
MAX.
-
6.73
-
MIN.
INCHES
MAX.
-
0.265
-
0.086
0.035
0.025
0.026
0.030
0.030
0.195
0.018
0.016
0.018
0.235
0.205
0.250
0.170
2.29 BSC
0.350
0.075
0.035
0.045
0'
25'
0.380
0.090
0.050
0.060
15'
35'
ECN: S-82111-Rev. A, 15-Sep-08
DWG: 5968
Notes
1. Dimensioning and tolerancing per ASME Y14.5M-1994.
2. Dimension are shown in inches and millimeters.
3. Dimension D and E do not include mold flash. Mold flash shall not exceed 0.13 mm (0.005") per side. These dimensions are measured at the
outermost extremes of the plastic body.
4. Thermal pad contour optional with dimensions b4, L2, E1 and D1.
5. Lead dimension uncontrolled in L3.
6. Dimension b1, b3 and c1 apply to base metal only.
7. Outline conforms to JEDEC outline TO-251AA.
1
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