MIL-PRF-19500/560L
Symbol
Dimensions
Notes
Inches
Millimeters
Min
Max
Min
Max
CD
5
.305
.355
7.75
9.02
CH
.240
.260
6.10
6.60
HD
3
.335
.370
8.51
9.40
LC
.200 TP
5.08 TP
6
LD
.016
.021
.41
.53
7
LL
.500
.750
12.70
19.05
7
LU
.016
.019
.41
.48
7
L1
.050
1.27
7
L2
.250
6.35
7
TL
.029
.045
.74
1.14
3
TW
.028
.034
.71
.86
10
P
.100
2.54
5
Q
.050
1.27
4
r
.010
.25
10, 11
α
45° TP
45° TP
6
Notes
1, 2, 8, 9
1, 2, 8, 9
NOTES:
1.
Dimensions are in inches.
2.
Millimeters are given for general information only.
3.
Symbol TL is measured from HD maximum.
4.
Details of outline in this zone are optional.
5.
Symbol CD shall not vary more than .010 (0.25 mm) in zone P. This zone is controlled for automatic
handling.
6.
Leads at gauge plane .054 inch (1.37 mm) +.001 inch (0.03 mm) -.000 inch (0.00 mm) below seating plane
shall be within .007 inch (0.18 mm) radius of true position (TP) relative to tab. Device may be measured by
direct methods or by gauge.
7.
Symbol LD applies between L1 and L2. Dimension LD applies between L2 and LL minimum.
8.
Lead designation, depending on device type, shall be as follows:
Lead number
TO-39
1
Emitter
2
Base
3
Collector
9.
Lead number three is electrically connected to case.
10.
Beyond r maximum, TW shall be held for a minimum length of .011 inch (0.28 mm).
11.
Symbol r applied to both inside corners of tab.
In accordance with ASME Y14.5M, diameters are equivalent to φx symbology.
12.
FIGURE 1. Physical dimensions (TO-39) - Continued.
4
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