RWR81N49R9FR

View detailed technical data, stock status, and sourcing information for: RWR81N49R9FR
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5905 Resistor

National Stock Number

5905-01-099-0914

Item Name Code

37404

Assigment Date

08/13/1980 (45 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.

275.0 ambient temp in deg celsius at zero percent rated power, -1.000 to 1.000 resistance tolerance in percent, 49.900 ohms electrical resistance, -20.0 to 20.0 temp coefficient of resistance in ppm per deg celsius, -55.0 to 275.0 temp range of temp coefficient in 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: -20.0 to 20.0
Electrical Resistance: 49.900 ohms
Resistance Tolerance In Percent: -1.000 to 1.000
Ambient Temp In Deg Celsius At Zero Percent Rated Power: 275.0
Temp Range Of Temp Coefficient In Deg Celsius: -55.0 to 275.0
Reactance Characteristic: noninductive
Reliability Indicator: established
Reliability Failure Rate Level In Percent: 0.001
Terminal Length: 1.500 inches minimum
Body Diameter: 0.085 inches nominal
Body Length: 0.250 inches nominal
Power Dissipation Rating In Watts: 1.000 free air
Ambient Temp At Full Rated Power: 25.0 celsius
Inclosure Type: encapsulated
Terminal Type: wire lead
Style Designator: axial terminal each end
Test Data Document: "81349-mil-r-39007 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.)."
Specification/Standard Data: 81349-mil-r-39007/9 government specification

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5905-01-148-6157	No Name Available	04/01/1995

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
4171530-383	Resistor,fixed,wire Wound,nonind
RWR81N49R9FM	Resistor,fixed,wire Wound,nonind
RWR81N49R9FP	Resistor,fixed,wire Wound,nonind
RWR81N49R9FR	Resistor,fixed,wire Wound,nonind
RWR81N49R9FS	Resistor,fixed,wire Wound,nonind

FAQs

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

What is the FSCG of the NSN 5905-01-099-0914?

The FSCG of the NSN 5905-01-099-0914 is 5905

Does the NSN 5905-01-099-0914 have a Schedule B code assigned?

Yes, the Schedule B code is 8533390080

Does NSN 5905-01-099-0914 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 5905-01-099-0914 contain precious materials?

Precious metal content is unknown

Does NSN 5905-01-099-0914 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 5905-01-099-0914 was assigned to the Federal Catalog?

It was assigned 45 years ago, on Wed, Aug 13, 1980