RWR81S2R21FSB12 The Vishay Dale RWR81S2R21FSB12 is a wirewound resistor with a resistance of 2.21 Ohms and a power rating of 1W. It features a tolerance of ±1% and operates within a wide temperature range.
Mfr Part #:

RWR81S2R21FSB12

Available from 1 distributors
Mfr Name: Vishay
Vishay
The Vishay Dale RWR81S2R21FSB12 is a wirewound resistor with a resistance of 2.21 Ohms and a power rating of 1W. It features a tolerance of ±1% and operates within a wide temperature range.
Total Stock: 6,500 pcs
$ Price Range: $0.01

RWR81S2R21FSB12 Available from 1 distributor

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RWR81S2R21FSB12 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Composition
Failure Rate
Features
Mounting Type
Number of Terminations
Operating Temperature
Power (Watts)
Power Rating
Resistance
Supplier Device Package
Temperature Coefficient
Tolerance

RWR81S2R21FSB12 Description

Short technical summary and product information.

This Vishay Dale RWR81S2R21FSB12 is an axial-packaged wirewound resistor designed for through-hole mounting. It offers a precise resistance value of 2.21 Ohms with a tight tolerance of ±1% and a power rating of 1W. The component is engineered to operate reliably across a broad temperature spectrum, from -55°C to 250°C, and features a temperature coefficient of ±50ppm/°C.

 

With a failure rate designation of S (0.001%), this resistor is suitable for applications requiring high reliability, including military and moisture-resistant environments. Its robust construction and specified characteristics make it a dependable choice for various electronic circuits where stable resistance performance is critical.

 

The axial package measures 0.085 inches in diameter and 0.250 inches in length, facilitating integration into standard PCB layouts. The component is RoHS3 compliant, indicating adherence to environmental standards regarding hazardous substances.

RWR81S2R21FSB12 Quick Information

Product Type: Wirewound Resistor
Series: S (0.001%)
Canonical Name: Vishay Dale RWR81S2R21FSB12 Wirewound Resistor
Subcategory: Through Hole Resistor

RWR81S2R21FSB12 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

RWR81S2R21FSB12 Estimated Pricing

Qty Low High
1+ $0.01 $0.01

Estimated market price range - modelled values for guidance only, not live distributor offers.

RWR81S2R21FSB12 Features

  • Wirewound construction for stable resistance.
  • 1W power rating with 2.21 Ohm resistance.
  • ±1% tolerance ensures precise circuit performance.
  • Wide operating temperature range of -55°C to 250°C.
  • Military and moisture-resistant design.

RWR81S2R21FSB12 Applications

  • Suitable for high-reliability circuits.
  • Ideal for military equipment applications.
  • Used in environments requiring moisture resistance.
  • General purpose through-hole resistor needs.

RWR81S2R21FSB12 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the resistance value of this resistor?

The resistance value is 2.21 ohms.

What is the power rating of the RWR81S2R21FSB12?

The power rating is 1 watt.

What is the tolerance of this resistor?

The tolerance is ±1%.

What is the temperature coefficient of this resistor?

The temperature coefficient is ±50 ppm/°C.

What are the operating temperature limits?

The operating temperature range is from -55°C to 250°C.

What is the package type of this resistor?

It has an axial through-hole package.

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