RWR81S49R9BRB12 The Vishay Dale RWR81S49R9BRB12 is a wirewound resistor with a resistance of 49.9 Ohms and a power rating of 1W. It offers a tight tolerance of ±0.1%.
Mfr Part #:

RWR81S49R9BRB12

Available from 1 distributors
Mfr Name: Vishay
Vishay
The Vishay Dale RWR81S49R9BRB12 is a wirewound resistor with a resistance of 49.9 Ohms and a power rating of 1W. It offers a tight tolerance of ±0.1%.
Total Stock: 84 pcs
$ Price Range: $0.01

RWR81S49R9BRB12 Available from 1 distributor

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84 pcs
84 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

RWR81S49R9BRB12 Specifications Quick View

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

RWR81S49R9BRB12 Description

Short technical summary and product information.

This Vishay Dale RWR81S49R9BRB12 is a wirewound resistor designed for through-hole mounting. It features a resistance value of 49.9 Ohms with a precise tolerance of ±0.1% and a power rating of 1W. The operating temperature range is from -55°C to 250°C, with a temperature coefficient of ±20ppm/°C.

 

Key features include its military and moisture-resistant construction, making it suitable for demanding applications. The resistor has 2 terminations and comes in an axial package with dimensions of 0.085" Dia x 0.250" L (2.16mm x 6.35mm). The failure rate is specified as R (0.01%).

 

This component is part of the RWR Series and adheres to military standards, indicated by its MIL-PRF-39007 designation. Its wirewound composition ensures stability and reliability in various electronic circuits.

RWR81S49R9BRB12 Quick Information

Product Type: Through Hole Resistor
Series: RWR Series
Canonical Name: Vishay Dale RWR81S49R9BRB12 Wirewound Resistor 49.9 Ohm 1W ±0.1%
Subcategory: Wirewound Resistor

RWR81S49R9BRB12 Compliance

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

RWR81S49R9BRB12 Estimated Pricing

Qty Low High
1+ $0.01 $0.01

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

RWR81S49R9BRB12 Features

  • Wirewound composition for stability.
  • 1W power rating with 49.9 Ohm resistance.
  • ±0.1% high tolerance for precision.
  • Wide operating temperature range.
  • Military and moisture resistant features.

RWR81S49R9BRB12 Applications

  • Suitable for military applications.
  • Ideal for moisture-prone environments.
  • Used in demanding electronic circuits.
  • Precision resistance requirements.

RWR81S49R9BRB12 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the resistance value of the RWR81S49R9BRB12?

The resistance value is 49.9 Ohms.

What is the power rating of this Vishay Dale resistor?

The power rating is 1W.

What is the tolerance of the RWR81S49R9BRB12 resistor?

The tolerance is ±0.1%.

What is the operating temperature range for this component?

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

What type of resistor composition does the RWR81S49R9BRB12 have?

It is a wirewound resistor.

What are the key features of the RWR81S49R9BRB12?

Key features include military and moisture resistant properties.

What is the package type for the RWR81S49R9BRB12?

The package type is axial.

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