WNA75RFE Equivalent & Substitute Parts

Part Overview

The WNA75RFE is a 75 Ohm ±1% 0.5W through-hole resistor manufactured by Ohmite in the WN series. This axial wirewound resistor features non-inductive construction and is designed for applications requiring precision resistance values with low inductance characteristics. The part maintains active product status with 976 units currently in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same resistance value, tolerance, power rating, and package type.

Substiute Parts

WNA75RFE

OhmiteIn Stock: 1029WNA75RFE Datasheet

Current PartRFQ

WNA75RFET

OhmiteIn Stock: 2147WNA75RFET Datasheet

DirectRFQ

WHA75RFE

OhmiteIn Stock: 807WHA75RFE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the WNA75RFE are identified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Electrical Parameters: Resistance value (75 Ohms), tolerance (±1%), power rating (0.5W), temperature coefficient (±20ppm/°C), and operating temperature range (-55°C to 150°C) must remain identical.

Mechanical Parameters: Package type (Axial), physical dimensions (0.100" Dia x 0.200" L), and number of terminations (2) must be maintained.

Composition: Wirewound construction is required for all substitutes.

The WNA75RFE has two identified substitutes: WNA75RFET (direct manufacturer substitute with tape & reel packaging) and WHA75RFE (parametric equivalent from the WH series with standard packaging).

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active product status and meet RoHS compliance requirements. The WNA75RFE and WHA75RFE are both ROHS3 compliant, while WNA75RFET is RoHS compliant. Selection between these substitutes depends on packaging requirements and inventory availability.

WNA75RFET is the direct manufacturer substitute, differentiated only by tape & reel packaging format. This part is suitable for high-volume automated assembly processes and offers the highest current inventory at 2045 units.

WHA75RFE is a parametric equivalent from the WH series that maintains all critical electrical and mechanical specifications. This part is suitable for applications where series designation is not a constraint and standard packaging is acceptable.

The WNA75RFE original part remains available with 976 units in stock and is suitable for standard packaging requirements.

Frequently Asked Questions (FAQ)

Q: Can WNA75RFET be used as a direct replacement for WNA75RFE?

A: Yes. WNA75RFET is electrically and mechanically identical to WNA75RFE. The only difference is the packaging format: WNA75RFET is supplied in tape & reel format while WNA75RFE uses standard packaging. Both parts are from the same WN series and have identical electrical specifications.

Q: What is the difference between WNA75RFE and WHA75RFE?

A: Both parts are parametrically equivalent with identical resistance, tolerance, power rating, temperature coefficient, operating temperature range, and physical dimensions. The primary difference is the series designation: WNA75RFE belongs to the WN series while WHA75RFE belongs to the WH series. The WNA75RFE features non-inductive construction, while the WHA75RFE does not specify this feature.

Q: Are all three parts suitable for the same circuit applications?

A: Yes. All three parts meet the same electrical and mechanical specifications for 75 Ohm ±1% 0.5W axial wirewound resistors. Selection should be based on packaging requirements, series preference, and inventory availability.

Q: What packaging format should I choose?

A: WNA75RFET (tape & reel) is recommended for automated assembly and high-volume production. WNA75RFE and WHA75RFE (standard packaging) are suitable for manual assembly and lower-volume applications.

Q: Are there any compliance differences between these parts?

A: WNA75RFE and WHA75RFE are both ROHS3 compliant. WNA75RFET is RoHS compliant. All three parts have ECCN classification EAR99 and are suitable for standard commercial applications.