Ohmite 810F100 Wirewound Chassis Mount Resistor - Equivalent & Substitute Parts

Part Overview

The Ohmite 810F100 is a 100 Ohms ±1% 10W wirewound chassis mount resistor from the Metal-Mite®89 series. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The 810F100E represents the active production equivalent, while additional substitutes from Vishay Dale provide alternative sourcing options with enhanced power ratings and compliance certifications.

Substiute Parts

810F100

OhmiteIn Stock: 1161810F100 Datasheet

Current PartRFQ

810F100E

OhmiteIn Stock: 2093810F100E Datasheet

DirectRFQ

RH010100R0FC02

Vishay DaleIn Stock: 1267RH010100R0FC02 Datasheet

DirectRFQ

RH010100R0FE02

Vishay DaleIn Stock: 1220RH010100R0FE02 Datasheet

DirectRFQ

TMC010100R0FE02

Vishay DaleIn Stock: 870TMC010100R0FE02 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Electrical Parameters (Must Match):

• Resistance value: 100 Ohms
• Tolerance: ±1%
• Temperature Coefficient: ±20ppm/°C
• Composition: Wirewound

Mechanical Parameters (Must Match):

• Coating/Housing Type: Aluminum
• Mounting Feature: Flanges
• Lead Style: Solder Lugs
• Package/Case: Axial, Box

Allowable Variations:

• Power rating may exceed the original 10W specification (12.5W acceptable for higher dissipation margin)
• Operating temperature range may be lower than the original specification (250°C acceptable where -55°C ~ 275°C is not required)
• Packaging format may differ (Tray or Bulk acceptable for different procurement workflows)

All substitute parts meet the core electrical and mechanical requirements for direct functional replacement in the 810F100 application.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute (Direct Replacement): The 810F100E is the recommended substitute for the obsolete 810F100. Both parts are manufactured by Ohmite within the Metal-Mite®89 series and maintain identical electrical and mechanical specifications. The 810F100E is in active production status and achieves ROHS3 compliance, addressing regulatory requirements for new designs.

Alternative Substitutes (Vishay Dale RH and TMC Series): The RH010100R0FC02, RH010100R0FE02, and TMC010100R0FE02 provide functionally equivalent alternatives with enhanced power dissipation (12.5W versus 10W). These parts are suitable for applications where the lower operating temperature ceiling (-55°C ~ 250°C versus -55°C ~ 275°C) does not present a constraint. RH010100R0FE02 and TMC010100R0FE02 both achieve ROHS3 compliance for regulatory-compliant designs.

Compliance Considerations: For new designs requiring RoHS compliance, select 810F100E, RH010100R0FE02, or TMC010100R0FE02. For legacy systems or applications without RoHS requirements, RH010100R0FC02 remains available.

Frequently Asked Questions (FAQ)

Q: Can the 810F100E directly replace the obsolete 810F100? A: Yes. The 810F100E maintains identical electrical parameters (100 Ω ±1%, 10W, ±20ppm/°C) and mechanical specifications (aluminum housing, flanged mounting, solder lugs). The primary difference is packaging format (Tray versus Box) and active production status with ROHS3 compliance.

Q: What is the difference between the Ohmite 810F100E and Vishay Dale substitutes? A: The Vishay Dale parts (RH010100R0FC02, RH010100R0FE02, TMC010100R0FE02) provide 12.5W power rating compared to the 10W specification of the Ohmite parts. The operating temperature range is reduced to -55°C ~ 250°C. All other electrical and mechanical parameters remain equivalent.

Q: Are the Vishay Dale RH and TMC series interchangeable? A: Yes. RH010100R0FC02, RH010100R0FE02, and TMC010100R0FE02 are electrically and mechanically equivalent. Selection between them depends on RoHS compliance requirements and packaging preferences (all available in Bulk format).

Q: Does the higher power rating of Vishay Dale parts affect compatibility? A: No. The 12.5W rating provides additional thermal margin and does not impact electrical performance or mechanical fit. These parts are suitable for applications originally designed for 10W components.

Q: What packaging formats are available? A: The 810F100E is supplied in Tray packaging. Vishay Dale substitutes (RH010100R0FC02, RH010100R0FE02, TMC010100R0FE02) are supplied in Bulk format. Box packaging is available for the obsolete 810F100 only.

Q: Which substitute should be selected for new designs? A: For new designs, 810F100E is the primary choice as the active Ohmite equivalent. If Vishay Dale sourcing is preferred or required, RH010100R0FE02 or TMC010100R0FE02 are recommended for ROHS3 compliance and active production status.