U440

View detailed technical data, stock status, and sourcing information for: U440
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5961 Semiconductor Devices and Associated Hardware

National Stock Number

5961-01-257-1240

Item Name Code

61962

Assigment Date

06/12/1987 (39 years ago)

A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.

0.500 inches minimum terminal length, to-71 joint electronic device engineering council/jedec/case outline designation, 0.210 inches maximum overall length, unable to decode inclosure material, 0.230 inches maximum overall diameter

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: 0.210 inches maximum
Terminal Length: 0.500 inches minimum
Overall Diameter: 0.230 inches maximum
Joint Electronic Device Engineering Council/Jedec/Case Outline Designation: to-71
Component Name And Quantity: 2 transistor
Mounting Method: terminal
Terminal Circle Diameter: 0.100 inches nominal
Features Provided: hermetically sealed case
Semiconductor Material: silicon all transistor
Voltage Rating In Volts Per Characteristic: -25.0 maximum gate to source voltage all transistor
Current Rating Per Characteristic: 50.00 milliamperes maximum gate current all transistor
Power Rating Per Characteristic: 350.0 milliwatts maximum total device dissipation all transistor
Terminal Type And Quantity: 8 uninsulated wire lead

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
336.4696	Unitized Semiconductor Devices
DS3022A	Unitized Semiconductor Devices
U440	Unitized Semiconductor Devices

FAQs

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

What is the FSCG of the NSN 5961-01-257-1240?

The FSCG of the NSN 5961-01-257-1240 is 5961

Does the NSN 5961-01-257-1240 have a Schedule B code assigned?

Yes, the Schedule B code is 8541500080

Does NSN 5961-01-257-1240 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 5961-01-257-1240 contain precious materials?

Item does not contain precious metal.

Does NSN 5961-01-257-1240 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 5961-01-257-1240 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Fri, Jun 12, 1987