810F75RE Equivalent & Substitute Parts

Part Overview

The Ohmite 810F75RE is a 75 Ohms ±1% 10W wirewound chassis mount resistor in the Metal-Mite®89 series. This component is classified as Active and is ROHS3 compliant. Substitute parts are identified when original inventory becomes unavailable or when design requirements necessitate alternative manufacturers while maintaining electrical and mechanical compatibility within specified parameters.

Substiute Parts

810F75RE

OhmiteIn Stock: 1054810F75RE Datasheet

Current PartRFQ

RH01075R00FE02

Vishay DaleIn Stock: 881RH01075R00FE02 Datasheet

DirectRFQ

TMC01075R00FE02

Vishay DaleIn Stock: 1067TMC01075R00FE02 Datasheet

UpgradeRFQ

UAL10-75RF8

RiedonIn Stock: 838UAL10-75RF8 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the 810F75RE is based on the following critical parameters: resistance value (75 Ohms), tolerance (±1%), composition (wirewound), temperature coefficient (±20ppm/°C), mounting configuration (flanges with solder lugs), and housing material (aluminum). All substitute parts maintain these core electrical and mechanical specifications.

The substitute parts are grouped into two categories:

Direct Substitutes (Equivalent or Enhanced Ratings): Parts that maintain or exceed the original 10W power rating while preserving all other electrical characteristics. These parts are mechanically and electrically interchangeable within the specified operating parameters.

Upgrade Substitutes (Higher Power Rating): Parts that provide increased power dissipation capability (12.5W) while maintaining all other electrical specifications, allowing for enhanced thermal performance in applications requiring additional margin.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and ROHS3 compliance, ensuring continued availability and regulatory conformance.

UAL10-75RF8 (Riedon): This part provides direct electrical and mechanical equivalence to the 810F75RE, maintaining the 10W power rating and -55°C ~ 275°C operating temperature range. The UAL10-75RF8 is suitable for applications requiring identical thermal performance characteristics and maximum temperature operation to 275°C.

RH01075R00FE02 and TMC01075R00FE02 (Vishay Dale): Both parts provide enhanced power dissipation at 12.5W while maintaining all other electrical specifications. These parts operate to a maximum temperature of 250°C, which is 25°C lower than the original specification. Selection of these parts is appropriate for applications where the reduced maximum temperature does not conflict with system requirements and where the increased power rating provides beneficial thermal margin.

Frequently Asked Questions (FAQ)

Q: Can the UAL10-75RF8 be used as a direct replacement for the 810F75RE?

A: Yes. The UAL10-75RF8 maintains identical resistance (75 Ohms), tolerance (±1%), power rating (10W), temperature coefficient (±20ppm/°C), operating temperature range (-55°C ~ 275°C), and mechanical configuration (aluminum housing, flanges, solder lugs). All electrical and mechanical parameters are equivalent.

Q: What is the difference between the Vishay Dale RH01075R00FE02 and TMC01075R00FE02?

A: Both parts are electrically identical with 75 Ohms ±1% at 12.5W. The primary difference is the series designation (RH versus TMC). Both maintain the same operating temperature range (-55°C ~ 250°C) and mechanical specifications. Selection between these parts depends on availability and procurement requirements.

Q: Can I use the 12.5W Vishay Dale parts in place of the 10W 810F75RE?

A: Yes, from an electrical and mechanical standpoint. The RH01075R00FE02 and TMC01075R00FE02 provide higher power dissipation capability. However, the maximum operating temperature is 250°C compared to 275°C for the original part. Applications operating above 250°C require the 810F75RE or UAL10-75RF8.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The 810F75RE, RH01075R00FE02, TMC01075R00FE02, and UAL10-75RF8 are all ROHS3 compliant, ensuring regulatory conformance across all options.

Q: What are the physical dimension differences between these parts?

A: All parts share the same nominal length (0.750" ~ 0.752") and width (0.799" ~ 0.812"). Height variations are minimal (0.400" ~ 0.417"), with all parts designed for the same mounting configuration with flanges and solder lugs.