MIL-PRF-19500/355M
Dimensions
Symbol
CD
CD
1
CH
HT
LC
LC
1
LD
LL
LU
L
1
L
2
P
Q
TL
TW
r
α
Inches
Millimeters
Notes
Min
Max
Min
Max
.335
.370
8.51
9.40
.305
.335
7.75
8.51
.140
.260
3.56
6.60
.009
.041
0.23
1.04
.140
.160
3.56
4.06
.200 TP
5.08 TP
9
.016
.021
.041
0.53
10
See notes 10, 11, and 12
.016
.019
0.41
0.48
10
.050
1.27
10
.250
6.35
10
.100
2.54
8
.050
1.27
7
.029
.045
0.74
1.14
5, 6
.028
.034
0.71
0.86
4, 5
.010
0.25
9
45°TP
45°TP
NOTES:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
Dimensions are in inches.
Millimeters are given for general information only.
Tab shown omitted.
Lead numbers 4 and 8 are omitted on this variation.
Beyond r maximum, TW shall be held to a minimum length of .21 inch (5.33 mm).
TL shall be measured from maximum CD.
Details of outline in this zone are optional.
CD
1
shall not vary more than .010 inch (0.25 mm) in zone P. This zone is controlled for automatic
handling.
Leads at gauge plane .054 - .055 inch (1.37 - 1.40 mm) below seating plane shall be within .007 inch
(0.18 mm) radius of true position (TP) at a maximum material condition (MMC) relative to the tab at
MMC. The device may be measured by direct methods or by the gauge and gauging procedures
described on gauge drawing GS-1.
LU applies between L
1
and L
2
. LD applies between L
2
and LL minimum. Diameter is uncontrolled in
L
1
and beyond LL minimum.
For transistor types 2N2919 and 2N2920, LL is .500 inch (12.70 mm) minimum and .750 inch (19.05
mm) maximum.
For transistor type 2N2919L and 2N2920L, LL is 1.500 inches (38.10 mm) minimum and 1.750 inches
(44.45 mm) maximum.
In accordance with ASME Y14.5M, diameters are equivalent to
φx
symbology.
FIGURE 1. Physical dimensions (2N2919, 2N2919L, 2N2920, and 2N2920L).
3
RAYTHEON [ RAYTHEON COMPANY ]
