MIL-PRF-19500/437H
JANHCA and JANKCA
JANHCB and JANKCB
die dimensions
die dimensions
Ltr
Ltr
Inches
Millimeters
Inches
Millimeters
Min
Max
Min
Max
Min
Max
Min
Max
A
.021
.025
0.53
0.64
A
.024
.028
0.61
0.71
B
.013
.017
0.33
0.43
B
.017
.021
0.43
0.53
NOTES:
1. Dimensions are in inches.
2. Millimeters are given for general information only.
3. The JANHCA and JANKCA die thickness is .010 inch (0.25 mm) ±.002 inch (±0.05 mm). Anode
metallization: Al, thickness = 25,000 Å minimum; cathode metallization: Thickness = 4,000 Å
minimum.
4. The JANHCB and JANKCB die thickness is .010 inch (0.25 mm) ±.002 inch (±0.05 mm). Anode
metallization: Al, thickness = 40,000 Å minimum; cathode metallization: Au, thickness = 5,000
Å minimum.
5. Circuit layout data: For zener operation, cathode must be operated positive with respect to anode.
6. Requirements in accordance with appendix G, MIL-PRF-19500, are performed in a TO-5 package
(see 6.5).
7. In accordance with ASME Y14.5M, diameters are equivalent to Φx symbology.
FIGURE 3. Physical dimensions JANHC and JANKC die.
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