RWR81N2000FSBSL Equivalent & Substitute Parts

Part Overview

The RWR81N2000FSBSL is a 200 Ohm, 1W wirewound axial resistor manufactured by Vishay Dale, designed for military applications per MIL-PRF-39007 specifications. This component features moisture-resistant construction and non-inductive characteristics, making it suitable for high-reliability electronic systems. The part is currently active in production with 1117 units in stock. Substitute parts may be required due to inventory constraints, supply chain considerations, or specific procurement requirements while maintaining identical electrical and mechanical performance.

Substiute Parts

RWR81N2000FSBSL

Vishay DaleIn Stock: 1207RWR81N2000FSBSL Datasheet

Current PartRFQ

RWR81S2000FSB12

Vishay DaleIn Stock: 1009RWR81S2000FSB12 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The RWR81S2000FSB12 qualifies as a parametric equivalent to the RWR81N2000FSBSL based on strict alignment of the following critical parameters:

• Resistance value: 200 Ohms
• Tolerance: ±1%
• Power rating: 1W
• Composition: Wirewound
• Package: Axial
• Temperature coefficient: ±20ppm/°C
• Operating temperature range: -55°C to 250°C
• Physical dimensions: 0.085" Dia x 0.250" L (2.16mm x 6.35mm)
• Number of terminations: 2
• Military series compliance: MIL-PRF-39007, RWR81 base product family
• Failure rate: S (0.001%)

Both parts are manufactured by Vishay Dale and maintain identical electrical performance characteristics and mechanical compatibility for through-hole axial mounting applications.

Parameter Comparison

Engineering Selection Recommendations

Both the RWR81N2000FSBSL and RWR81S2000FSB12 are active production components from Vishay Dale with identical electrical specifications and mechanical form factors. Selection between these parts should be based on availability and procurement lead times. Both parts maintain the same RoHS non-compliant and REACH Affected status, with identical ECCN and HTSUS classifications, ensuring consistent regulatory treatment in supply chain management. The RWR81N variant includes explicit non-inductive specification, while the RWR81S variant specifies moisture-resistant characteristics; both parts meet military MIL-PRF-39007 requirements for the RWR81 series.

Frequently Asked Questions (FAQ)

Q: Can RWR81S2000FSB12 be used as a direct replacement for RWR81N2000FSBSL?

A: Yes. Both parts share identical resistance (200 Ohms), tolerance (±1%), power rating (1W), temperature coefficient (±20ppm/°C), operating temperature range (-55°C to 250°C), and physical dimensions (0.085" Dia x 0.250" L). They are both wirewound axial resistors from the military MIL-PRF-39007 RWR81 series with equivalent failure rates and termination configurations.

Q: Are there differences in the feature sets between these parts?

A: The RWR81N2000FSBSL explicitly lists non-inductive characteristics, while the RWR81S2000FSB12 emphasizes moisture-resistant construction. Both parts are military-grade and moisture-resistant; the designation difference reflects series nomenclature within the RWR81 family rather than functional incompatibility.

Q: Do these parts have the same package and mounting compatibility?

A: Yes. Both parts are axial through-hole resistors with identical physical dimensions of 0.085" diameter by 0.250" length (2.16mm x 6.35mm), with two terminations. They are mechanically and electrically interchangeable in PCB layouts designed for axial resistor mounting.

Q: What is the regulatory status for both parts?

A: Both parts are RoHS non-compliant and REACH Affected, with identical ECCN (EAR99) and HTSUS (8533.21.0080) classifications. They maintain the same regulatory treatment for export and supply chain compliance purposes.

Q: Are both parts currently available?

A: Yes. The RWR81N2000FSBSL has 1117 units in stock, and the RWR81S2000FSB12 has 989 units in stock. Both are active production components from Vishay Dale.