MIL-PRF-19500/478

View detailed technical data, stock status, and sourcing information for: MIL-PRF-19500/478
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5961 Semiconductor Devices and Associated Hardware

National Stock Number

5961-01-040-6423

Item Name Code

20589

Assigment Date

05/11/1977 (49 years ago)

A two electrode semiconductor device having an asymmetrical voltage - current characteristic. May or may not include mounting hardware and/or heatsink. Excludes:light emitting diode and semiconductor device,photo. For items containing material such as selenium and copper oxide, see recifier, metallic.

1 mounting facility quantity, central message switch, an/tyc-39a; support equipment, b-52 aircraft; aircraft, sof (ac-130h, mc-130h, ec-130e, hc-130); tactical data system, an/uya-4(v); tactical air opns module (an/tyq-(23); computer display set an/uyq-21(v); support equipment, b-1 aircraft; communications systems, an/wrr-7; fire control system, mk 92 (fcs) end item identification, cathode electrode internally-electrically connected to case, 1.253 inches maximum overall length, do-4 joint electronic device engineering council/jedec/case outline designation

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Overall Length: 1.253 inches maximum
End Item Identification: central message switch, an/tyc-39a; support equipment, b-52 aircraft; aircraft, sof (ac-130h, mc-130h, ec-130e, hc-130); tactical data system, an/uya-4(v); tactical air opns module (an/tyq-(23); computer display set an/uyq-21(v); support equipment, b-1 aircraft; communications systems, an/wrr-7; fire control system, mk 92 (fcs)
Mounting Facility Quantity: 1
Joint Electronic Device Engineering Council/Jedec/Case Outline Designation: do-4
Electrode Internally-Electrically Connected To Case: cathode
Mounting Method: threaded stud
Overall Width Across Flats: 0.424 inches minimum and 0.437 inches maximum
Nominal Thread Size: 0.190 inches
Criticality Code Justification: feat
Voltage Rating In Volts Per Characteristic: 150.0 maximum reverse voltage, instantaneous and 150.0 maximum working peak reverse voltage
Current Rating Per Characteristic: 400.00 amperes maximum peak forward surge current
Maximum Operating Temp Per Measurement Point: 175.0 celsius junction
Special Features: weapon system essential
Material: silicon semiconductor
Test Data Document: "81349-mil-prf-19500 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."
Thread Series Designator: unf
Terminal Type And Quantity: 1 threaded stud and 1 tab, solder lug
Specification/Standard Data: 81349-mil-prf-19500/478 government specification

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5961-00-489-0234	No Name Available	10/01/1991
5961-01-008-8908	No Name Available	04/01/2008
5961-01-030-6844	No Name Available	08/23/2007

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
1N5815	Diode Semiconductor Device
20-00903-020	Diode Semiconductor Device
28821-1355404	Diode Semiconductor Device
353-9019-320	Diode Semiconductor Device
4034972-502	Diode Semiconductor Device
450904-7437	Diode Semiconductor Device
7118862-1	Diode Semiconductor Device
A531A056-101	Diode Semiconductor Device
JANTX1N5816	Diode Semiconductor Device
MIL-PRF-19500/478	Diode Semiconductor Device
PD2710	Diode Semiconductor Device

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5961-01-040-6423?

The FSCG of the NSN 5961-01-040-6423 is 5961

Does the NSN 5961-01-040-6423 have a Schedule B code assigned?

Yes, the Schedule B code is 8541100070

Does NSN 5961-01-040-6423 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5961-01-040-6423 contain precious materials?

Item does not contain precious metal.

Does NSN 5961-01-040-6423 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 5961-01-040-6423 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Wed, May 11, 1977