D225K25R Equivalent & Substitute Parts

Part Overview

The D225K25R is a 25 Ohm, 225 W slide adjustable power resistor manufactured by Ohmite in the Dividohm®210 series. This chassis mount component features a tubular radial design with solder lug termination and is currently in active production status. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or when design flexibility permits selection from qualified alternatives meeting identical electrical and mechanical specifications.

Substiute Parts

D225K25R

OhmiteIn Stock: 971D225K25R Datasheet

Current PartRFQ

AVT20020E25R00KE

Vishay Huntington Electric Inc.In Stock: 971AVT20020E25R00KE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the D225K25R are qualified based on the following critical parameters that determine functional and mechanical compatibility:

• Resistance value: 25 Ohms (exact match required)
• Power rating: 225 W (exact match required)
• Tolerance: ±10% (exact match required)
• Adjustment type: Slide (exact match required)
• Mounting configuration: Chassis Mount (exact match required)
• Termination style: Solder Lug (exact match required)
• Package type: Radial, 3 Lead, Tubular (exact match required)
• Physical dimensions: Diameter and length within acceptable mechanical tolerances for board layout and thermal management

The AVT20020E25R00KE from Vishay Huntington Electric Inc. meets all electrical and mechanical criteria for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

Both the D225K25R and AVT20020E25R00KE are active production components with identical electrical specifications and compatible mechanical dimensions. The primary differentiation is regulatory compliance status: the AVT20020E25R00KE carries ROHS3 compliance, while the D225K25R is RoHS non-compliant. Selection between these parts should be based on application regulatory requirements and supply availability. Physical dimensions are within acceptable tolerances for direct mechanical substitution in chassis mount applications.

Frequently Asked Questions (FAQ)

Q: Can the AVT20020E25R00KE replace the D225K25R in existing designs?

A: Yes. Both components share identical electrical specifications (25 Ohms, 225 W, ±10% tolerance) and compatible mechanical configurations (slide adjustment, chassis mount, solder lug termination, radial 3-lead tubular package). Physical dimensions are within acceptable tolerances for direct substitution.

Q: What is the difference in inner diameter between these parts?

A: The D225K25R has an inner diameter of 0.752" (19.10mm), while the AVT20020E25R00KE has an inner diameter of 0.748" (19.00mm). This 0.004" (0.10mm) difference is within acceptable mechanical tolerances for chassis mount applications and does not affect functional compatibility.

Q: Does the length difference affect compatibility?

A: The length difference is 0.012" (0.30mm), with the AVT20020E25R00KE being slightly longer at 10.512" (267.00mm) compared to the D225K25R at 10.500" (266.70mm). This minimal variation is within acceptable tolerances for standard chassis mount installations.

Q: What is the significance of RoHS compliance status?

A: RoHS compliance status indicates regulatory adherence to restrictions on hazardous substances. The AVT20020E25R00KE is ROHS3 compliant, while the D225K25R is non-compliant. Selection should align with application regulatory requirements and end-market restrictions.

Q: Are both parts currently available?

A: Both components are listed as active production status. The D225K25R has 912 units in stock, and the AVT20020E25R00KE has 868 units in stock at the time of this reference.