MIL-PRF-19500-124 Semiconductor Device, Diode, Silicon, Voltage Regulator Types 1N2970B Through 1N2977B, 1N2979B, 1N2980B, 1N2982B, 1N2984B Through 1N2986B, 1N2988B Through 1N2993B, 1N2995B, 1N2997B, 1N2999B Through 1N3005B, 1N3007B, 1N3008B, 1N3009B, 1N3011B, 1N3012B, 1N3014B, 1N3015B, Plus Rb Types, 1N3993A Through 1N3998A, And Ra Types, Jan, Jantx, Jantxv, And JansThis specification covers the performance requirements for 10 watt, silicon voltage regulator diodes: A and B type \(standard polarity\); RA and RB type \(reverse polarity\). Four levels of product assurance are provided for each device type as specified in MIL┬ûPRF┬û19500.

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MIL�PRF�19500/124L

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

�

Semiconductor Devices, General Specification for.

DEPARTMENT OF DEFENSE STANDARDS

�

Test Methods for Semiconductor Devices.

FEDERAL STANDARDS

FED�STD�H28

�

Screw�Thread Standards for Federal Services.

(Copies of these documents are available online at https://assist.daps.dla.mil/quicksearch or

https://assist.daps.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.

3. REQUIREMENTS

3.1 General. The individual item requirements shall be as specified in MIL�PRF�19500 and as modified herein.

3.2 Qualification. Devices furnished under this specification shall be products that are manufactured by a

manufacturer authorized by the qualifying activity for listing on the applicable qualified manufacturers list (QML)

before contract award (see 4.2 and 6.3).

3.3 Abbreviations, symbols, and definitions. The abbreviations, symbols, and definitions used herein shall be as

specified in MIL�PRF�19500. The symbols used herein are listed in 6.5.

3.4 Interface and physical dimensions. Interface and physical dimensions shall be as specified in

3.4.1 Lead finish. Unless otherwise specified, lead finish shall be solderable in accordance with MIL�PRF�19500,

MIL�STD�750, and herein. Where a choice of lead finish is desired, it shall be specified in the contract (see 6.2).

3.4.2 Polarity. The polarity of device types shall be as follows:

Device types 1N2970B through 1N3015B and 1N3993RA through 1N3998RA shall have the anode

connected to the stud (term 2 of figure 1).

Device types 1N2970RB through 1N3015RB and 1N3993A through 1N3998A shall have the cathode

connected to the stud (term 2 of figure 1) (see 3.6).