D50K50R Equivalent & Substitute Parts

Part Overview

The D50K50R is a 50 Ohm, 50 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. Alternative equivalent parts are necessary to support supply chain flexibility, inventory management, and compliance requirements across different procurement channels.

Substiute Parts

D50K50R

OhmiteIn Stock: 937D50K50R Datasheet

Current PartRFQ

D50K50RE

OhmiteIn Stock: 813D50K50RE Datasheet

DirectRFQ

AVT05006E50R00KE

Vishay Huntington Electric Inc.In Stock: 1045AVT05006E50R00KE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Equivalent substitution for the D50K50R is determined by strict alignment of electrical and mechanical parameters. The following criteria establish substitutability:

Primary Substitution Criteria:

• Resistance value: 50 Ohms (exact match required)
• Power rating: 50 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)

Mechanical Tolerance for Substitution:

• Diameter: 0.563" OD ±0.004" / 0.313" ID ±0.002" (14.30mm ±0.10mm / 7.94mm ±0.05mm)
• Length: 4.000" ±0.016" (101.60mm ±0.40mm)

Parts meeting these criteria are classified as direct equivalents and may be substituted without circuit redesign or mechanical re-qualification.

Parameter Comparison

Engineering Selection Recommendations

D50K50RE (Ohmite): This part is a direct equivalent to the D50K50R with identical electrical and mechanical specifications. The primary distinction is RoHS3 compliance status. Selection of D50K50RE is appropriate for applications requiring RoHS3 compliance or when sourcing from Ohmite's current production inventory.

AVT05006E50R00KE (Vishay Huntington Electric Inc.): This part meets all electrical specifications and adjustment/mounting requirements. Mechanical dimensions fall within acceptable substitution tolerance: diameter variance of 0.004" OD and 0.002" ID, length variance of 0.016". RoHS3 compliance is confirmed. Selection of AVT05006E50R00KE is appropriate for cross-manufacturer sourcing or when Ohmite inventory is unavailable. Mechanical fit verification in the specific chassis mount application is recommended due to minor dimensional variation.

Frequently Asked Questions (FAQ)

Q: Can D50K50RE be used as a direct replacement for D50K50R? A: Yes. Both parts are manufactured by Ohmite with identical electrical and mechanical specifications. The D50K50RE carries ROHS3 compliance certification, whereas the D50K50R does not. Functional performance and physical fit are equivalent.

Q: Is the Vishay AVT05006E50R00KE mechanically compatible with the D50K50R? A: The AVT05006E50R00KE meets all electrical specifications and adjustment type requirements. Mechanical dimensions vary slightly: 0.004" in outer diameter, 0.002" in inner diameter, and 0.016" in length. These variations fall within standard manufacturing tolerance for chassis mount applications. Physical verification in the specific mounting location is recommended prior to production implementation.

Q: What is the significance of RoHS compliance in substitute selection? A: RoHS3 compliance indicates the part meets European Union Restriction of Hazardous Substances regulations. The D50K50R is RoHS non-compliant, while both D50K50RE and AVT05006E50R00KE are ROHS3 compliant. Selection depends on end-use application requirements and regional regulatory obligations.

Q: Are all three parts suitable for the same circuit applications? A: Yes. All three parts share identical electrical parameters: 50 Ohms resistance, 50 W power rating, ±10% tolerance, and slide adjustment capability. Circuit performance is equivalent across all three options.

Q: What factors should determine which substitute to select? A: Selection should be based on: (1) RoHS compliance requirements for the end application, (2) inventory availability and lead time, (3) procurement channel preference, (4) mechanical fit verification for the specific chassis mount design, and (5) cost considerations.