HPK600K2R Equivalent & Substitute Parts

Part Overview

The HPK600K2R is a 2 Ohms ±10% 600W wirewound chassis mount resistor manufactured by Vishay Huntington Electric Inc. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing applications requiring 600W power dissipation at 2 Ohms resistance with chassis mount configuration.

Substiute Parts

HPK600K2R

Vishay Huntington Electric Inc.In Stock: 1228HPK600K2R Datasheet

Current PartRFQ

TAP600K2R0E

OhmiteIn Stock: 1244TAP600K2R0E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HPK600K2R is determined by the following critical parameters:

Electrical Parameters (Non-Negotiable):

• Resistance value: 2 Ohms
• Tolerance: ±10%
• Power rating: 600W
• Temperature coefficient: ±150ppm/°C
• Operating temperature range: -55°C to 150°C

Mechanical Parameters (Compatibility-Critical):

• Mounting feature: Flanges
• Coating/housing type: Epoxy Coated
• Physical dimensions: 2.560" L x 2.362" W (65.00mm x 60.00mm), Height 1.280" (32.50mm)
• Lead style: M4 Threaded (primary specification)

Regulatory Parameters:

• RoHS3 Compliance
• REACH Unaffected status

The TAP600K2R0E from Ohmite meets all critical electrical and mechanical parameters with one exception: lead style is M5 Threaded rather than M4 Threaded. This difference requires mechanical evaluation for mounting compatibility in the target application.

Parameter Comparison

Engineering Selection Recommendations

The TAP600K2R0E from Ohmite is the identified equivalent substitute for the obsolete HPK600K2R. Selection of this substitute is based on:

Compliance Alignment: Both parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory continuity.

Electrical Equivalence: Resistance, tolerance, power rating, temperature coefficient, and operating temperature range are identical across both components.

Mechanical Compatibility: Physical dimensions are equivalent within manufacturing tolerances. Flanged mounting configuration is preserved. Epoxy coating and housing type are identical.

Product Status Advantage: The TAP600K2R0E is active in production, ensuring long-term availability compared to the obsolete HPK600K2R.

Lead Style Consideration: The TAP600K2R0E uses M5 threaded leads versus M4 threaded leads on the HPK600K2R. This difference requires evaluation of the mounting interface in the target application. If the application mounting holes are sized for M4 threads, mechanical adaptation or re-drilling may be necessary.

Composition Difference: The TAP600K2R0E uses thick film composition versus wirewound composition in the HPK600K2R. Both compositions meet the specified electrical parameters and temperature coefficient requirements.

Frequently Asked Questions (FAQ)

Q: Can the TAP600K2R0E directly replace the HPK600K2R without any modifications?

A: Electrical and thermal performance are equivalent. Mechanical installation requires verification of the mounting interface. The M5 threaded lead on the TAP600K2R0E differs from the M4 threaded lead on the HPK600K2R. If the application mounting holes are sized for M4 threads, mechanical adaptation is required.

Q: What is the significance of the composition difference between wirewound and thick film?

A: Both compositions meet the specified electrical parameters, temperature coefficient (±150ppm/°C), and operating temperature range (-55°C to 150°C). The composition difference does not affect electrical equivalence for this application.

Q: Are there any regulatory or compliance issues with substitution?

A: Both parts are ROHS3 compliant and REACH Unaffected. No regulatory barriers exist for substitution.

Q: Why is the HPK600K2R classified as obsolete?

A: Product status is provided as obsolete in the component database. The TAP600K2R0E is active in production and represents the current equivalent offering.

Q: What are the critical parameters that must match for substitution?

A: Resistance (2 Ohms), tolerance (±10%), power rating (600W), temperature coefficient (±150ppm/°C), operating temperature range (-55°C to 150°C), and mounting configuration (flanged chassis mount) must remain constant. Lead style and composition differences are secondary to electrical equivalence.

Q: Is inventory availability a factor in selecting the TAP600K2R0E?

A: Both parts show inventory availability (HPK600K2R: 1171 Pcs; TAP600K2R0E: 1217 Pcs). The TAP600K2R0E advantage is its active product status, ensuring continued availability beyond current stock levels.