Ohmite 825FR75E Equivalent & Substitute Parts

Part Overview

The Ohmite 825FR75E is a 750 mOhms ±1% 25W wirewound chassis mount resistor designed for high-power applications requiring precision resistance values. This component features aluminum housing with flanged mounting and solder lug termination, suitable for applications operating across -55°C to 275°C. The part is currently active in production with ROHS3 compliance and REACH unaffected status. Equivalent parts are identified when electrical specifications, mechanical form factor, and compliance certifications align within acceptable engineering tolerances.

Substiute Parts

825FR75E

OhmiteIn Stock: 906825FR75E Datasheet

Current PartRFQ

HS25 R75 F

ARCOLIn Stock: 1405HS25 R75 F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The ARCOL HS25 R75 F qualifies as a direct substitute for the Ohmite 825FR75E based on the following critical parameters:

• Resistance Value: Both parts specify 750 mOhms
• Tolerance: Both maintain ±1% tolerance
• Power Rating: Both rated at 25W
• Composition: Both are wirewound construction
• Housing Material: Both use aluminum chassis mount design
• Mounting Feature: Both feature flanged mounting
• Lead Style: Both utilize solder lug termination
• Package Configuration: Both are axial, box package type
• Compliance: Both are RoHS compliant and EAR99 classified

Substitution is valid where the mechanical envelope and electrical performance requirements align with these specified parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the Ohmite 825FR75E and ARCOL HS25 R75 F are active production components with RoHS compliance. The Ohmite part carries ROHS3 certification and REACH unaffected status. The ARCOL substitute maintains RoHS compliance with MSL rating of 1 (Unlimited). Selection between these parts should be based on supply availability, packaging requirements (Ohmite supplied in standard packaging; ARCOL in bulk), and compliance documentation requirements for the end application. The temperature coefficient difference of 10ppm/°C between parts is within acceptable tolerance for most industrial applications.

Frequently Asked Questions (FAQ)

Q: Can the ARCOL HS25 R75 F directly replace the Ohmite 825FR75E in existing designs?

A: Yes, provided the application does not require ROHS3 specific certification or REACH documentation. Both parts meet the core electrical and mechanical specifications: 750 mOhms ±1% at 25W with wirewound construction, aluminum housing, flanged mounting, and solder lug termination.

Q: What is the significance of the temperature coefficient difference?

A: The Ohmite part specifies ±90ppm/°C while the ARCOL part specifies ±100ppm/°C. This 10ppm/°C difference represents a 0.01% change per degree Celsius and is typically negligible for most applications. Applications requiring tighter temperature stability should specify the Ohmite part.

Q: Are there packaging differences between these parts?

A: The Ohmite 825FR75E is supplied in standard packaging with 894 pieces in stock. The ARCOL HS25 R75 F is supplied in bulk packaging with 1355 pieces available. Physical dimensions differ slightly: Ohmite measures 1.062" L x 1.094" W x 0.556" H; ARCOL measures 1.075" L x 0.559" W x 0.583" H. Verify PCB layout clearances before substitution.

Q: What compliance certifications apply to each part?

A: The Ohmite 825FR75E carries ROHS3 compliance and REACH unaffected status. The ARCOL HS25 R75 F carries RoHS compliance with MSL rating 1 (Unlimited). Both are classified as EAR99 for export control purposes.

Q: Are these parts suitable for high-temperature applications?

A: The Ohmite 825FR75E operates across -55°C to 275°C. The ARCOL HS25 R75 F operating temperature range is not specified in available documentation. For applications requiring confirmed high-temperature operation, the Ohmite part with documented -55°C to 275°C rating is the specified choice.