Overview
This performance specification sheet, MIL-PRF-19500/228R from 26 April 2013, supersedes the previous MIL-PRF-19500/228P version from 26 October 2011. It is relevant for silicon rectifier diodes of types 1N3611, 1N3612, 1N3613, 1N3614, and 1N3957, which carry the military designations JAN and JANTX. All these types are indicated as inactive for new designs, redirecting preferences to newer devices specified under MIL-PRF-19500/427.
Compliance
The U.S. Department of Defense has approved this documentation for usage across all departments and agencies, setting the standards for procuring the specified semiconductor devices. Additionally, complete adherence to the directives outlined in this document and the master specification MIL-PRF-19500 was mandated by 26 July 2013.
Scope and Product Assurance
Within this document, two levels of product assurance are presented for each encapsulated device type as stipulated in MIL-PRF-19500. These concern the performance requirements for 1.0 ampere silicon rectifier diodes.
Physical Dimensions and Maximum Ratings
Details on physical dimensions are available via Figure 1, which illustrates the axial package. Maximum ratings outlined in the datasheet include forward surge current (IFSM), barometric pressure parameters for reduced atmospheric conditions, storage and junction temperature range (TstG and Tj), and thermal resistance (RoJL). The datasheet also notes a specific linear derating of current from the operational temperature (TA) of +55°C up to a maximum of +175°C.
Characteristics and Thermal Considerations
The listed devices feature different peak inverse voltage (Vpk) ratings, from 200V for 1N3611 up to 1,000V for 1N3957, with forward surge currents consistently at 200A across all types. The thermal resistance is constant at 36°C/W, with a standard lead length, and device operation is independent of heat sinking or special mounting.
Contact Information
For further inquiries or feedback regarding the specification sheet, the document directs readers to contact DLA Land and Maritime. The correct contact information, including a mailing address in Columbus, Ohio, and an email dedicated to semiconductors, are also provided. Users are advised to verify current contact details through the ASSIST Online database to ensure the information’s accuracy.
Classification
The document concludes with classification references, denoting an American Supply Item Classification (AMSC) code N/A and a Federal Supply Class (FSC) 5961 for electronic module assemblies and semi-conductor devices.
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