WNBR50FE Equivalent & Substitute Parts

Part Overview

The WNBR50FE is a 500 mOhms ±1% 1W through-hole axial wirewound resistor manufactured by Ohmite. This non-inductive component is designed for applications requiring precision current sensing, power dissipation, and low-resistance pathways in electronic circuits. The part maintains Active product status with full ROHS3 compliance and REACH unaffected certification. Substitute parts are identified when packaging configurations differ while maintaining identical electrical and mechanical specifications.

Substiute Parts

WNBR50FE

OhmiteIn Stock: 813WNBR50FE Datasheet

Current PartRFQ

WNBR50FET

OhmiteIn Stock: 2151WNBR50FET Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The WNBR50FE and WNBR50FET are direct electrical and mechanical equivalents within the Ohmite WN series. Substitution is valid based on the following criteria:

Electrical Parameters (Identical):

• Resistance value: 500 mOhms
• Tolerance: ±1%
• Power rating: 1W
• Temperature coefficient: ±90ppm/°C
• Operating temperature range: -55°C to 150°C
• Composition and construction: Wirewound, non-inductive

Mechanical Parameters (Identical):

• Package type: Axial
• Physical dimensions: 0.130" Dia x 0.276" L (3.30mm x 7.00mm)
• Number of terminations: 2

Differentiation Factor:

• Packaging configuration: WNBR50FE supplied in standard packaging; WNBR50FET supplied in Cut Tape (CT) format

Both parts maintain Active product status, ROHS3 compliance, and REACH unaffected certification. The substitution is valid for any application where the WNBR50FE is specified, provided the packaging format is compatible with assembly requirements.

Parameter Comparison

Engineering Selection Recommendations

Both WNBR50FE and WNBR50FET are qualified for direct substitution in applications requiring 500 mOhms ±1% 1W axial wirewound resistors. Selection between these parts should be based on assembly process requirements:

• WNBR50FE is appropriate for manual assembly, kit builds, or applications where standard packaging is preferred.
• WNBR50FET is appropriate for automated pick-and-place assembly processes utilizing cut tape feeders.

Both parts maintain identical electrical performance, mechanical compatibility, and regulatory compliance (ROHS3, REACH unaffected). The choice between them does not affect circuit functionality or performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can WNBR50FET be used as a direct replacement for WNBR50FE?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format (standard versus cut tape). Substitution is valid for any application where the WNBR50FE is specified.

Q: What is the difference between WNBR50FE and WNBR50FET?

A: The parts are identical in all electrical and mechanical specifications. WNBR50FE is supplied in standard packaging, while WNBR50FET is supplied in Cut Tape (CT) format for automated assembly equipment.

Q: Are both parts ROHS3 compliant?

A: Yes. Both WNBR50FE and WNBR50FET are ROHS3 compliant and REACH unaffected.

Q: What is the operating temperature range for these resistors?

A: Both parts operate from -55°C to 150°C with a temperature coefficient of ±90ppm/°C.

Q: Can these parts be used in high-frequency applications?

A: These are non-inductive wirewound resistors designed for low-resistance applications. Frequency limitations are not specified in the provided parameters.

Q: What is the physical size of these resistors?

A: Both parts measure 0.130" diameter by 0.276" length (3.30mm x 7.00mm) in axial configuration.