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MIL-PRF-19500-127 Semiconductor Devices, Diode, Silicon, Voltage Regulator, Types 1N4370A 1 Through 1N4372A-1 And 1N746A-1 Through 1N759A-1, 1N4370Aur-1 Through 1N4372Aur-1 And 1N746Aur-1 Through 1N759Aur-1, 1N4370C-1 Through 1N4372C-1 And 1N746C-1 Through 1N759C-1, 1N4370Cur-1 Through 1N4372Cur 1 And 1N746Cur-1 Through 1N759Cur-1, 1N4370D-1 Through 1N4372D-1 And 1N746D-1 Through 1N759D-...This specification covers the performance requirements for 500 milliwatt, silicon, voltage regulator diodes with voltage tolerances of 5, 2, and 1 percent. Three levels of product assurance are provided for each encapsulated device type as specified in MIL-PRF-19500. Two levels of product assurance is provided for each unencapsulated device.

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MIL-PRF-19500/127W
(B ­ version)
Dimensions
Inches
Millimeters
Ltr
Min
Max
Min
Max
A
.024
.028
0.61
0.71
B
.017
.021
0.43
0.53
NOTES:
1. Dimensions are in inches.
2. Millimeters are given for general information only.
3. The physical characteristics of the die thickness are .010 .002 (0.25 mm 0.051 mm).
Metallization is top = (anode)-AL, back: (cathode)-AU.
AL thickness = 40,000 Å minimum,
AU thickness = 5,000 Å minimum.
4. Circuit layout data: For zener operation, cathode must be operated positive with
respect to anode.
FIGURE 4. Physical dimensions (JANHCB and JANKCB die dimensions).
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