MIL-PRF-19500/317R
Dimensions
Symbol
Inches
Millimeters
Note
Min
Max
Min
Max
BL
.115
.128
2.92
3.25
BW
.085
.108
2.16
2.74
*
BH
.046
.056
1.17
1.42
UB only, 4
BH
.055
.069
1.40
1.75
UBC only, 5
BH
.055
.069
1.40
1.75
UBCN only, 6
CL
.128
3.25
CW
.108
2.74
LL1
.022
.038
0.56
0.97
3 places
LL2
.014
0.356
3 places
LS1
.035
.039
0.89
0.99
LS2
.071
.079
1.80
2.01
LW
.016
.024
0.41
0.61
r
.008
0.20
6
r1
.012
0.30
8
r2
.022
0.56
UB and UBC only, 8
NOTES:
1.
Dimensions are in inches.
2.
Millimeters are given for general information only.
3.
Hatched areas on package denote metallized areas.
4.
UB only: Pad 1 = Base, Pad 2 = Emitter, Pad 3 = Collector, Pad 4 = connected to the lid braze ring.
5.
UBC (ceramic lid) only: Pad 1 = Base, Pad 2 = Emitter, Pad 3 = Collector, Pad 4 = connected to the lid
braze ring.
6.
UBCN (ceramic lid) only: Pad 1 = Base, Pad 2 = Emitter, Pad 3 = Collector, Isolated lid with three pads
only.
7.
For design reference only.
In accordance with ASME Y14.5M, diameters are equivalent to φx symbology.
8.
* FIGURE 3. Physical dimensions, surface mount (UB, UBC, and UBCN versions) - Continued.
6
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