Package Information
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TO-251AA (HIGH VOLTAGE)
4
3
A
E1
E
Thermal PAD
A
4
0.010
M
A B
C
0.25
c2
b4
L2
4
A
θ1
θ2
D1
4
B
C
3
Seating
plane
5
C
B
C
L3
L1
(Datum A)
L
B
A
A1
3 x b2
3 x b
c
View A - A
M
0.010
C A B
0.25
2 x e
Base
metal
5
Plating
(c)
b1, b3
Lead tip
5
c1
(b, b2)
Section B - B and C - C
MILLIMETERS
INCHES
MILLIMETERS
INCHES
MIN. MAX.
DIM.
A
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.
0.086
0.035
0.025
0.026
0.030
0.030
0.195
0.018
0.016
0.018
0.235
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
MIN.
5.21
6.35
4.32
MAX.
-
6.73
-
0.205
0.250
0.170
-
0.265
-
A1
b
E1
e
b1
b2
b3
b4
c
2.29 BSC
2.29 BSC
L
8.89
1.91
0.89
1.14
0'
9.65
2.29
1.27
1.52
15'
0.350
0.075
0.035
0.045
0'
0.380
0.090
0.050
0.060
15'
L1
L2
L3
θ1
θ2
c1
c2
D
25'
35'
25'
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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