A20-0.5-4.87-1

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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5905 Resistor

National Stock Number

5905-01-049-2108

Item Name Code

05311

Assigment Date

10/13/1977 (48 years ago)

A resistor whose ohmic value cannot be adjusted or varied. The resistance element consists of either a thin layer of conductive material, containing either binders or insulating materials, deposited on an insulated form; or an alloy of metal and ceramic materials, usually fused to an insulated form. Opposition to the flow of current is an inherent property of the materials used and is manifest by the heat dissipation in the resistor. See also attenuator, fixed and resistor, fixed, composition. Excludes:carbon composition type resistors.

150.0 ambient temp in deg celsius at zero percent rated power, -50.0 to 150.0 temp range of temp coefficient in deg celsius, 4.870 ohms electrical resistance, -1.000 to 1.000 resistance tolerance in percent, -300.0 to 300.0 temp coefficient of resistance in ppm per deg celsius

Product Characteristics

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

Temp Coefficient Of Resistance In Ppm Per Deg Celsius: -300.0 to 300.0
Electrical Resistance: 4.870 ohms
Resistance Tolerance In Percent: -1.000 to 1.000
Ambient Temp In Deg Celsius At Zero Percent Rated Power: 150.0
Temp Range Of Temp Coefficient In Deg Celsius: -50.0 to 150.0
Reliability Indicator: not established
Terminal Length: 1.500 inches nominal
Body Diameter: 0.145 inches nominal
Body Length: 0.400 inches nominal
Power Dissipation Rating In Watts: 0.500 free air
Ambient Temp At Full Rated Power: 70.0 celsius
Inclosure Type: encapsulated
Terminal Type: wire lead
Style Designator: axial terminal each end

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
247AS-C2508-008	Film Fixed Resistor
A20-0.5-4.87-1	Film Fixed Resistor
A20.5-4.87-1	Film Fixed Resistor
A21-0.5-4.87-1	Film Fixed Resistor

FAQs

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

What is the FSCG of the NSN 5905-01-049-2108?

The FSCG of the NSN 5905-01-049-2108 is 5905

Does the NSN 5905-01-049-2108 have a Schedule B code assigned?

Yes, the Schedule B code is 8533100042

Does NSN 5905-01-049-2108 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 5905-01-049-2108 contain precious materials?

Precious metal content is unknown

Does NSN 5905-01-049-2108 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 5905-01-049-2108 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Thu, Oct 13, 1977