Equivalent & Substitute Parts for Ohmite 810F5R0

Part Overview

The Ohmite 810F5R0 is a 5 Ohms ±1% 10W wirewound chassis mount resistor from the Metal-Mite®89 series. This component is classified as obsolete, which necessitates identification of active equivalent and substitute parts for ongoing design and procurement requirements. The part features aluminum housing with flanged mounting and solder lug termination, suitable for applications requiring precision current sensing and thermal management in industrial environments.

Substiute Parts

810F5R0

OhmiteIn Stock: 754810F5R0 Datasheet

Current PartRFQ

810F5R0E

OhmiteIn Stock: 1014810F5R0E Datasheet

DirectRFQ

UAL10-5RF8

RiedonIn Stock: 1202UAL10-5RF8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 810F5R0 is determined by strict equivalence across the following electrical and mechanical parameters:

• Resistance value: 5 Ohms
• Tolerance: ±1%
• Power rating: 10W
• Composition: Wirewound
• Temperature coefficient: ±50ppm/°C
• Operating temperature range: -55°C to 275°C
• Housing material: Aluminum
• Mounting configuration: Flanged
• Termination style: Solder lugs
• Package format: Axial, Box

All identified substitute parts meet these criteria. Dimensional variations within manufacturing tolerances and packaging format differences (tray, bulk) do not affect functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The 810F5R0E from Ohmite is the direct manufacturer equivalent, offering identical electrical and mechanical specifications with active product status and ROHS3 compliance. This part is the preferred selection for applications requiring continuity with the original design specification.

The UAL10-5RF8 from Riedon provides full functional equivalence with active product status and ROHS3 compliance. This part includes additional features (current sense, flame proof, pulse withstanding, safety certifications) and is suitable for applications where these enhanced characteristics provide value. Dimensional variations are within acceptable manufacturing tolerances for chassis mount applications.

Both substitute parts are available in higher inventory quantities than the obsolete 810F5R0, supporting procurement continuity and supply chain reliability.

Frequently Asked Questions (FAQ)

Q: Can the 810F5R0E directly replace the 810F5R0 in existing designs?

A: Yes. The 810F5R0E is electrically and mechanically equivalent to the 810F5R0, with identical resistance, tolerance, power rating, temperature coefficient, and operating range. The primary difference is product status (active versus obsolete) and improved RoHS compliance.

Q: What are the dimensional differences between the 810F5R0 and UAL10-5RF8?

A: The UAL10-5RF8 has minor dimensional variations: length 0.752" (19.10mm) versus 0.750" (19.05mm), width 0.799" (20.30mm) versus 0.812" (20.63mm), and height 0.417" (10.60mm) versus 0.400" (10.16mm). These differences are within standard manufacturing tolerances for chassis mount resistors and do not affect functional performance or mounting compatibility.

Q: Does packaging format affect part selection?

A: Packaging format (tray, bulk) affects procurement and handling but does not impact electrical or mechanical performance. Selection should be based on inventory management and assembly process requirements.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both the 810F5R0E and UAL10-5RF8 are ROHS3 compliant, whereas the original 810F5R0 is non-compliant. This compliance improvement supports modern regulatory requirements and supply chain standards.

Q: What additional features does the UAL10-5RF8 provide?

A: The UAL10-5RF8 includes current sense, flame proof, pulse withstanding, and safety certifications. These features are provided in addition to the core electrical and mechanical specifications and may be beneficial for specific application requirements.