MFF1-2T1-2490HM1
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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.
-50.0 to 50.0 temp coefficient of resistance in ppm per deg celsius, 175.0 ambient temp in deg celsius at zero percent rated power, -55.0 to 175.0 temp range of temp coefficient in deg celsius, 249.000 ohms electrical resistance, -1.000 to 1.000 resistance tolerance in percent
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
- -50.0 to 50.0
- Electrical Resistance
- 249.000 ohms
- Resistance Tolerance In Percent
- -1.000 to 1.000
- Ambient Temp In Deg Celsius At Zero Percent Rated Power
- 175.0
- Temp Range Of Temp Coefficient In Deg Celsius
- -55.0 to 175.0
- Reliability Indicator
- not established
- Body Diameter
- 0.187 inches nominal
- Body Length
- 0.625 inches nominal
- Power Dissipation Rating In Watts
- 0.500 free air
- Ambient Temp At Full Rated Power
- 125.0 celsius
- Inclosure Type
- encapsulated
- Terminal Type
- wire lead
- Style Designator
- axial terminal each end
- Test Data Document
- "81349-mil-r-10509 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-10509/2 government specification
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5905-00-023-1625 | No Name Available | 04/29/1968 |
| 5905-00-919-1050 | No Name Available | 02/05/2025 |
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 |
|---|---|
| 0727-0479 | Film Fixed Resistor |
| 323-0135-00 | Film Fixed Resistor |
| CECT0-2500F | Film Fixed Resistor |
| CECT02490HMS1PCT | Film Fixed Resistor |
| DCS12X012J250R0F | Film Fixed Resistor |
| MFF1-2T1-2490HM1 | Film Fixed Resistor |
| RN65F2490F | Film Fixed Resistor |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5905-00-974-5499?
Does the NSN 5905-00-974-5499 have a Schedule B code assigned?
Does NSN 5905-00-974-5499 require demilitarization?
Does NSN 5905-00-974-5499 contain precious materials?
Does NSN 5905-00-974-5499 contain hazardous materials?
When the NSN 5905-00-974-5499 was assigned to the Federal Catalog?
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