MIL-PRF-19500/542J
Dimensions
Symbol
Inches
Millimeters
Notes
Min
Max
Min
Max
CD
.875
22.23
CH
.250
.360
6.35
9.14
HR
.495
.525
12.57
13.34
HR1
.131
.188
3.33
4.78
HT
.060
.135
1.52
3.43
LD
.038
.043
0.97
1.09
LL
.312
.500
7.92
12.70
LL1
.050
1.27
MHD
.151
.161
3.84
4.09
MHS
1.177
1.197
29.90
30.40
PS
.420
.440
10.67
11.18
3, 5
PS1
.205
.225
5.21
5.72
3, 5
s1
.655
.675
16.64
17.15
NOTES:
1. Dimensions are in inches.
2. Millimeters are given for general information only.
3. These dimensions should be measured at points .050 inch (1.27 mm) and .055 inch (1.40 mm) below seating
plane. When gauge is not used measurement will be made at the seating plane.
4. The seating plane of the header shall be flat within .001 inch (0.03 mm) concave to .004 inch (0.10 mm)
convex inside a .930 inch (23.62 mm) diameter circle on the center of the header and flat within .001 inch
(0.03 mm) concave to .006 inch (0.15 mm) convex overall.
5. Mounting holes shall be deburred on the seating plane side.
6. Drain is electrically connected to the case.
7. In accordance with ASME Y14.5M, diameters are equivalent to φx symbology.
FIGURE 1. Physical dimensions of transistor (TO-204AA).
4
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