MS257

View detailed technical data, stock status, and sourcing information for: MS257
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5961 Semiconductor Devices and Associated Hardware

National Stock Number

5961-01-044-9038

Item Name Code

20588

Assigment Date

07/22/1977 (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.

unable to decode inclosure material, terminal mounting method, 0.100 inches maximum overall diameter, junction contact internal configuration, 0.045 inches maximum overall length

Product Characteristics

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

Inclosure Material: unable to decode
Overall Length: 0.045 inches maximum
Overall Diameter: 0.100 inches maximum
Internal Configuration: junction contact
Mounting Method: terminal
Features Provided: hermetically sealed case
Semiconductor Material: silicon
Voltage Rating In Volts Per Characteristic: 35.0 maximum collector to base voltage/static/emitter open and 20.0 maximum collector to emitter voltage/static/base open and 1.0 maximum emitter to base voltage, static, collector open
Current Rating Per Characteristic: 50.00 milliamperes maximum collector current, dc
Power Rating Per Characteristic: 750.0 milliwatts maximum total device dissipation
Special Features: junction pattern arrangement: npn
Test Data Document: 99971-7536764 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)
Terminal Type And Quantity: 4 ribbon

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
7536764P1	Transistor
7541513P1	Transistor
MS257	Transistor
MS452	Transistor

FAQs

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

What is the FSCG of the NSN 5961-01-044-9038?

The FSCG of the NSN 5961-01-044-9038 is 5961

Does the NSN 5961-01-044-9038 have a Schedule B code assigned?

Yes, the Schedule B code is 8541500080

Does NSN 5961-01-044-9038 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 5961-01-044-9038 contain precious materials?

Precious metal content is unknown

Does NSN 5961-01-044-9038 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 5961-01-044-9038 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Fri, Jul 22, 1977