Ohmite 45J600E Equivalent & Substitute Parts

Part Overview

The Ohmite 45J600E is a 600 Ohm ±5% 5W through-hole resistor in axial wirewound composition, part of the Ohmicone® 40 series. This component is actively manufactured and widely used in applications requiring precision power dissipation in compact form factors. Equivalent and substitute parts are identified when design requirements permit tolerance upgrades or when inventory constraints necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

45J600E

OhmiteIn Stock: 77645J600E Datasheet

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45F600E

OhmiteIn Stock: 127845F600E Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 45J600E is determined by strict equivalence in the following critical parameters:

• Resistance value: 600 Ohms (exact match required)
• Power rating: 5W (exact match required)
• Composition: Wirewound (exact match required)
• Package type: Axial (exact match required)
• Physical dimensions: 0.343" Dia x 0.937" L (exact match required)
• Temperature coefficient: ±20ppm/°C (exact match required)

The Ohmite 45F600E qualifies as a direct substitute because it maintains all critical electrical and mechanical parameters while offering an upgraded tolerance specification of ±1% compared to the ±5% tolerance of the primary part. This tolerance improvement does not compromise compatibility and represents an enhancement for applications requiring tighter resistance value control.

Parameter Comparison

Engineering Selection Recommendations

Both the 45J600E and 45F600E are active products manufactured by Ohmite and maintain full compliance with ROHS3 and REACH regulatory requirements. Selection between these parts should be based on tolerance requirements specific to the application circuit:

The 45J600E (±5% tolerance) is suitable for general-purpose applications where standard tolerance resistors meet circuit performance specifications.

The 45F600E (±1% tolerance) is appropriate for precision circuits requiring tighter resistance value control and improved stability across the operating range. The enhanced tolerance specification does not introduce any mechanical or electrical incompatibilities with the 45J600E footprint or electrical characteristics.

Both parts are manufactured in identical physical form factors and are pin-compatible for direct substitution in PCB layouts and through-hole assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the 45F600E replace the 45J600E in existing designs?

A: Yes. The 45F600E is mechanically and electrically compatible with the 45J600E. Both parts share identical physical dimensions (0.343" Dia x 0.937" L), axial package configuration, 5W power rating, and wirewound composition. The primary difference is tolerance specification, where the 45F600E offers ±1% tolerance compared to the 45J600E's ±5% tolerance.

Q: What is the significance of the tolerance difference between these parts?

A: Tolerance defines the acceptable range of resistance variation from the nominal 600 Ohm value. The 45J600E allows variation within ±5% (570–630 Ohms), while the 45F600E restricts variation to ±1% (594–606 Ohms). Applications requiring precise resistance values benefit from the tighter tolerance of the 45F600E.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the 45J600E and 45F600E are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory standards for electronic component manufacturing and use.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. Both parts are axial through-hole components with identical physical dimensions and lead configurations. They are directly interchangeable in PCB layouts without requiring design modifications or assembly process changes.

Q: What applications benefit from the 45F600E upgrade?

A: Applications requiring stable resistance values across temperature ranges, precision analog circuits, measurement instrumentation, and systems with tight tolerance budgets benefit from the 45F600E's ±1% specification. General-purpose applications may continue using the 45J600E without performance degradation.