RS00525K00FS73 Equivalent & Substitute Parts

Part Overview

The RS00525K00FS73 is a 25 kOhms ±1% 5W wirewound axial resistor manufactured by Vishay Dale. This through-hole component is designed for applications requiring precision resistance with moisture resistance characteristics. The part maintains active product status with 1137 units in current inventory. Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility to support procurement flexibility and supply chain continuity.

Substiute Parts

RS00525K00FS73

Vishay DaleIn Stock: 1185RS00525K00FS73 Datasheet

Current PartRFQ

45F25K

OhmiteIn Stock: 102145F25K Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RS00525K00FS73 are qualified based on the following critical parameters:

• Resistance value: 25 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 5W (exact match required)
• Composition: Wirewound (exact match required)
• Package: Axial (exact match required)
• Temperature coefficient: ±20ppm/°C (exact match required)
• Termination count: 2 (exact match required)

The substitute part 45F25K from Ohmite meets all specified electrical and mechanical parameters, qualifying it as a direct equivalent for the RS00525K00FS73.

Parameter Comparison

Engineering Selection Recommendations

Both the RS00525K00FS73 and 45F25K are active products with identical electrical specifications and mechanical compatibility. Selection between these parts should be based on:

• Packaging format availability: RS00525K00FS73 is supplied in Tape & Reel format; 45F25K is supplied in Bulk format
• Current inventory status: RS00525K00FS73 has 1137 units in stock; 45F25K has 920 units in stock
• Compliance requirements: Both parts are RoHS non-compliant and REACH Affected, with identical ECCN (EAR99) and HTSUS (8533.21.0080) classifications

Physical dimensions show minor variation: RS00525K00FS73 measures 0.312" Dia x 0.875" L (7.92mm x 22.23mm); 45F25K measures 0.343" Dia x 0.937" L (8.70mm x 23.80mm). Verify PCB layout clearances before substitution.

Frequently Asked Questions (FAQ)

Q: Can 45F25K be used as a direct replacement for RS00525K00FS73?

A: Yes. Both parts share identical electrical specifications (25 kOhms, ±1%, 5W, ±20ppm/°C) and wirewound axial construction. Verify physical dimensions fit the PCB layout, as the 45F25K has slightly larger diameter and length.

Q: What are the key parameters that determine substitution eligibility?

A: Resistance value, tolerance, power rating, composition type, package style, temperature coefficient, and termination count must all match exactly. The RS00525K00FS73 and 45F25K meet all these criteria.

Q: Are there packaging differences between these parts?

A: Yes. RS00525K00FS73 is supplied in Tape & Reel format, while 45F25K is supplied in Bulk format. Select based on your assembly process requirements.

Q: Do both parts have the same compliance status?

A: Both parts are RoHS non-compliant and REACH Affected. They share identical ECCN and HTSUS classifications.

Q: What is the physical size difference?

A: RS00525K00FS73: 0.312" Dia x 0.875" L (7.92mm x 22.23mm). 45F25K: 0.343" Dia x 0.937" L (8.70mm x 23.80mm). Confirm PCB footprint compatibility before design implementation.