Ohmite 43F600 600 Ohm 3W Axial Wirewound Resistor Equivalent & Substitute Parts

Part Overview

The Ohmite 43F600 is a 600 Ohm ±1% 3W through-hole axial wirewound resistor from the Ohmicone® 40 series. This component is actively manufactured and maintained in production inventory. Equivalent and substitute parts are identified for applications requiring alternative sourcing, inventory management, or specific compliance certifications such as RoHS3 compliance.

Substiute Parts

43F600

OhmiteIn Stock: 82143F600 Datasheet

Current PartRFQ

43F600E

OhmiteIn Stock: 127943F600E Datasheet

DirectRFQ

ALSR03600R0FE12

Vishay DaleIn Stock: 974ALSR03600R0FE12 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Ohmite 43F600 is determined by the following critical parameters:

• Resistance value: 600 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 3W (exact match required)
• Package type: Axial (exact match required)
• Composition: Wirewound (exact match required)
• Number of terminations: 2 (exact match required)

The identified substitute parts meet all mandatory electrical and mechanical parameters. Variations in temperature coefficient, operating temperature range, and RoHS compliance status are secondary differentiators that do not affect functional interchangeability in standard applications.

Parameter Comparison

Engineering Selection Recommendations

43F600E (Ohmite): Direct equivalent from the same manufacturer with identical electrical specifications and physical dimensions. Offers RoHS3 compliance as the primary advantage over the original 43F600. Recommended for applications requiring RoHS3 certification or when sourcing from Ohmite inventory.

ALSR03600R0FE12 (Vishay Dale): Functionally equivalent with identical resistance, tolerance, and power rating. Provides RoHS3 compliance and moisture-resistant construction. Physical dimensions are slightly smaller (0.180" Dia x 0.500" L versus 0.220" Dia x 0.594" L). Temperature coefficient is ±30ppm/°C compared to ±20ppm/°C for the Ohmite variants. Suitable for applications with space constraints or requiring moisture resistance and RoHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can 43F600E be used as a direct replacement for 43F600?

A: Yes. Both parts are manufactured by Ohmite with identical electrical specifications (600 Ohms ±1%, 3W) and physical dimensions (0.220" Dia x 0.594" L). The primary difference is RoHS3 compliance status. No circuit modifications are required.

Q: What is the difference between 43F600 and ALSR03600R0FE12?

A: Both are 600 Ohm ±1% 3W axial wirewound resistors with identical electrical performance. The ALSR03600R0FE12 has a smaller physical footprint (0.180" Dia x 0.500" L), moisture-resistant construction, and a slightly higher temperature coefficient (±30ppm/°C versus ±20ppm/°C). Physical dimensions must be verified for PCB layout compatibility.

Q: Are all three parts interchangeable in the same circuit?

A: Electrically, yes. All three parts meet the core specifications: 600 Ohms ±1%, 3W, axial wirewound, two terminations. Physical dimensions differ between the Ohmite variants and the Vishay Dale part, so PCB hole spacing and component placement must be verified before substitution.

Q: Which substitute should I select for RoHS3 compliance?

A: Both 43F600E and ALSR03600R0FE12 are RoHS3 compliant. Select 43F600E for identical physical dimensions to the original 43F600, or ALSR03600R0FE12 if space constraints or moisture resistance is required.

Q: Does the temperature coefficient difference affect substitution?

A: The temperature coefficient difference (±20ppm/°C versus ±30ppm/°C) is a secondary parameter. For standard applications, this difference is not a limiting factor. Applications requiring precision temperature stability should verify performance requirements against the specific coefficient of the selected part.