HPK600K4R Equivalent & Substitute Parts

Part Overview

The HPK600K4R is a 4 Ohms ±10% 600W wirewound chassis mount resistor manufactured by Vishay Huntington Electric Inc. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations. The HPK600K4R series provides high-power dissipation capability with epoxy coating and flanged mounting for secure installation in industrial and power electronics applications. Due to its obsolete status, equivalent parts from active manufacturers ensure supply chain continuity and design flexibility.

Substiute Parts

HPK600K4R

Vishay Huntington Electric Inc.In Stock: 1156HPK600K4R Datasheet

Current PartRFQ

TAP600K4R0E

OhmiteIn Stock: 704TAP600K4R0E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HPK600K4R is based on strict electrical and mechanical parameter matching. The following criteria determine valid equivalency:

Electrical Parameters (Non-Negotiable):

• Resistance value: 4 Ohms
• Tolerance: ±10%
• Power rating: 600W
• Temperature coefficient: ±150ppm/°C
• Operating temperature range: -55°C ~ 150°C

Mechanical Parameters (Required for Installation):

• Mounting feature: Flanged chassis mount configuration
• Physical dimensions: 65.00mm L x 60.00mm W x 32.50mm H (±0.01")
• Lead style: Threaded (M4 or M5 acceptable with mechanical adapter consideration)
• Coating: Epoxy coated for environmental protection

Regulatory Parameters (Mandatory):

• RoHS3 compliance
• REACH unaffected status
• ECCN: EAR99 classification

The TAP600K4R0E from Ohmite qualifies as a direct substitute based on matching all critical electrical parameters, equivalent physical dimensions, compatible mounting configuration, and identical regulatory compliance status. The composition difference (thick film vs. wirewound) does not preclude substitution when all functional and mechanical parameters align.

Parameter Comparison

Engineering Selection Recommendations

The TAP600K4R0E from Ohmite is a qualified substitute for the obsolete HPK600K4R based on the following engineering criteria:

Electrical Equivalency: All critical electrical parameters match exactly, including resistance value, tolerance, power rating, temperature coefficient, and operating temperature range. These parameters ensure functional interchangeability in circuit applications.

Mechanical Compatibility: Physical dimensions are identical within manufacturing tolerances. Both components feature flanged chassis mount configurations with epoxy coating. The lead style difference (M4 vs. M5 threaded) requires mechanical adapter consideration during installation but does not affect electrical performance.

Regulatory Compliance: Both components maintain ROHS3 compliance and REACH unaffected status, satisfying current regulatory requirements for industrial and commercial applications.

Supply Chain Status: The TAP600K4R0E is classified as active product with confirmed inventory availability (643 Pcs), providing reliable supply continuity compared to the obsolete HPK600K4R status.

Technology Consideration: While the HPK600K4R uses wirewound composition and the TAP600K4R0E uses thick film composition, both technologies deliver the specified electrical performance at 600W power rating with identical temperature stability characteristics.

Frequently Asked Questions (FAQ)

Q: Can the TAP600K4R0E directly replace the HPK600K4R without any modifications?

A: The TAP600K4R0E is electrically and functionally equivalent to the HPK600K4R. Physical dimensions and mounting flanges are identical. The lead style differs (M4 vs. M5 threaded), requiring mechanical adapter consideration during installation. No circuit modifications are necessary.

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

A: Both wirewound and thick film compositions deliver the specified 600W power rating and ±150ppm/°C temperature coefficient. The composition difference does not affect electrical performance for this application. Wirewound designs typically exhibit lower inductance at DC, while thick film designs offer different frequency response characteristics. For DC or low-frequency applications, both compositions are functionally equivalent.

Q: Are there any compliance or certification differences between these parts?

A: Both the HPK600K4R and TAP600K4R0E maintain identical ROHS3 compliance and REACH unaffected status. No compliance differences exist. Both components satisfy current regulatory requirements for industrial electronics applications.

Q: What is the impact of the M4 vs. M5 threaded lead difference?

A: The lead style difference requires mechanical adapter consideration during installation. The M4 threaded lead on the HPK600K4R differs from the M5 threaded lead on the TAP600K4R0E. Mechanical adapters or mounting bracket modifications may be necessary to accommodate this difference. Electrical performance is unaffected by this mechanical variation.

Q: Why is the HPK600K4R classified as obsolete?

A: The HPK600K4R is classified as obsolete by the manufacturer, indicating discontinued production. The TAP600K4R0E from Ohmite is an active product with current manufacturing and inventory support, providing long-term supply chain reliability.

Q: Can I use the TAP600K4R0E in new designs?

A: Yes. The TAP600K4R0E is classified as active product and is suitable for new design implementations. All electrical parameters, mechanical dimensions, and regulatory compliance requirements are satisfied for industrial and power electronics applications.

Q: What packaging differences exist between these components?

A: The HPK600K4R is supplied in box packaging, while the TAP600K4R0E is supplied in bulk packaging. This difference affects order quantities and handling procedures but does not impact component performance or compatibility.