MIL-PRF-19500/127W
* 1.4 Primary electrical characteristics. Primary electrical characteristics are as shown in maximum and primary test
ratings (see 3.9 herein) and as follows:
a. 2.4 V dc VZ 12 V dc.
b. 1N4370A-1 through 1N4372A-1 and 1N746A-1 through 1N759A-1 are 5 percent voltage tolerance.
c. 1N4370C-1 through 1N4372C-1 and 1N746C-1 through 1N759C-1 are 2 percent voltage tolerance.
d. 1N4370D-1 through 1N4372D-1 and 1N746D-1 through 1N759D-1 are 1 percent voltage tolerance.
Thermal resistance:
RJL = 250C/W maximum at L = .375 inch (9.53 mm) (DO-35).
RJEC = 100C/W maximum. Junction to end-caps (DO-213AA).
RJA = 300C/W junction to ambient including PCB see note.
* NOTE: See figures 6, 7, and 8 for derating curves. TA = +75C for both axial and MELF (UR) on printed circuit
board (PCB), PCB = FR4 .0625 inch (1.59 mm) 1-layer 1-Oz Cu, horizontal, still air, pads (UR) = .067 inch (1.70 mm)
x .105 inch (2.67 mm); pads (axial) = .092 inch (2.34 mm) diameter, strip = .030 inch (0.762 mm) x 1 inch (25.4 mm)
long, axial lead length L .187 inch ( 4.75 mm); RJA with a defined thermal resistance condition included is
measured at IZ = as defined in the electrical characteristics table herein.
2. APPLICABLE DOCUMENTS
2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 of this specification. This
section does not include documents cited in other sections of this specification or recommended for additional
information or as examples. While every effort has been made to ensure the completeness of this list, document
users are cautioned that they must meet all specified requirements of documents cited in sections 3, 4, or 5 of this
specification, whether or not they are listed.
2.2 Government documents.
2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a
part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are
those cited in the solicitation or contract.
DEPARTMENT OF DEFENSE SPECIFICATIONS
MIL-PRF-19500
-
Semiconductor Devices, General Specification for.
DEPARTMENT OF DEFENSE STANDARDS
MIL-STD-750
-
Test Methods for Semiconductor Devices.
(Copies of these documents are available online at https://assist.dla.mil/quicksearch/ or https://assist. dla.mil or
from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.)
2.3 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the
text of this document and the references cited herein, the text of this document takes precedence. Nothing in this
document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.
2
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