HPK600K3R Equivalent & Substitute Parts

Part Overview

The HPK600K3R is a 3 Ohms ±10% 600W wirewound chassis mount resistor manufactured by Vishay Huntington Electric Inc. This component is designed for high-power applications requiring reliable thermal dissipation and mechanical stability through flanged mounting. The part is currently classified as obsolete, necessitating identification of active equivalent components to maintain design continuity and ensure supply chain availability for new production and field service applications.

Substiute Parts

HPK600K3R

Vishay Huntington Electric Inc.In Stock: 927HPK600K3R Datasheet

Current PartRFQ

TAP600K3R0E

OhmiteIn Stock: 991TAP600K3R0E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HPK600K3R is determined by the following critical parameters:

Electrical Equivalence Requirements:

• Resistance value: 3 Ohms (exact match required)
• Tolerance: ±10% (matching tolerance band)
• Power rating: 600W (minimum requirement; higher ratings acceptable)
• Temperature coefficient: ±150ppm/°C (matching thermal stability)
• Operating temperature range: -55°C to 150°C (minimum coverage required)

Mechanical Compatibility Requirements:

• Mounting feature: Flanges (for chassis mount installation)
• Coating/housing type: Epoxy coated (environmental protection)
• Overall dimensions: 2.560" L x 2.362" W x 1.280" H maximum (physical fit in enclosure)
• Lead style: Threaded connection (M4 or M5 acceptable with mechanical adaptation)

Compliance Requirements:

• RoHS3 compliance (regulatory requirement)
• REACH unaffected status (material restriction compliance)

The TAP600K3R0E qualifies as a direct substitute based on matching all electrical parameters, mechanical mounting configuration, dimensional envelope, and regulatory compliance status. The composition difference (thick film versus wirewound) does not preclude substitution when all functional and environmental parameters align.

Parameter Comparison

Engineering Selection Recommendations

The TAP600K3R0E from Ohmite is a qualified substitute for the obsolete HPK600K3R. Selection is based on the following engineering criteria:

Electrical Performance: Both components deliver identical electrical specifications across resistance, tolerance, power dissipation, and thermal characteristics. The temperature coefficient and operating range ensure equivalent performance in thermal cycling and extended temperature applications.

Mechanical Integration: Dimensional compatibility is confirmed within manufacturing tolerances. The M5 threaded lead on the TAP600K3R0E requires verification of mounting hole specifications; standard M5 threaded fasteners are widely available and represent a minor mechanical adaptation from the M4 specification.

Regulatory Compliance: Both components maintain ROHS3 compliance and REACH unaffected status, satisfying current environmental and material restriction requirements for new production and field replacement applications.

Supply Chain Status: The TAP600K3R0E is classified as active product with confirmed inventory availability (932 pcs), ensuring reliable sourcing for ongoing production requirements and field service stock replenishment.

Frequently Asked Questions (FAQ)

Q: Can the TAP600K3R0E directly replace the HPK600K3R without circuit redesign?

A: Yes. The TAP600K3R0E meets all electrical specifications required by circuits designed for the HPK600K3R. Resistance, tolerance, power rating, temperature coefficient, and operating temperature range are identical. Mechanical mounting requires verification that M5 threaded holes are available or can be adapted from existing M4 mounting points.

Q: What is the significance of the composition difference (wirewound versus thick film)?

A: Both wirewound and thick film compositions achieve the specified electrical and thermal performance at 600W and 3 Ohms. The thick film construction of the TAP600K3R0E provides equivalent reliability within the defined operating parameters. Composition selection does not affect substitution eligibility when all functional specifications align.

Q: Are there dimensional concerns with the TAP600K3R0E?

A: Dimensions are compatible within standard manufacturing tolerances. Length differs by 0.001" (0.01mm), which is negligible for chassis mounting applications. Width and height are identical. Verify that the mounting enclosure accommodates the M5 threaded lead configuration.

Q: Does the TAP600K3R0E require thermal management modifications?

A: No. Both components are rated for 600W dissipation with identical operating temperature ranges (-55°C to 150°C). Existing thermal management provisions designed for the HPK600K3R remain applicable to the TAP600K3R0E.

Q: What packaging considerations apply to the TAP600K3R0E?

A: The TAP600K3R0E is supplied in bulk packaging, whereas the HPK600K3R was supplied in box packaging. This affects receiving, storage, and inventory management procedures but does not impact component performance or compatibility.

Q: Is the TAP600K3R0E suitable for new product designs?

A: Yes. The TAP600K3R0E is classified as active product with confirmed supply availability. It is appropriate for new designs requiring 3 Ohm, 600W, ±10% tolerance chassis mount resistors with flanged mounting and epoxy coating.