Ohmite 41J68RE Equivalent & Substitute Parts

Part Overview

The Ohmite 41J68RE is a 68 Ohm, 1W through-hole axial wirewound resistor rated at ±5% tolerance. This component is part of the Ohmicone® 40 series and maintains active product status with full RoHS3 compliance. Equivalent and substitute parts are identified when applications require improved tolerance specifications, enhanced environmental performance, or alternative compliance certifications while maintaining core electrical and mechanical compatibility.

Substiute Parts

41J68RE

OhmiteIn Stock: 87741J68RE Datasheet

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41F68RE

OhmiteIn Stock: 103641F68RE Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 41J68RE are identified based on the following critical parameters that must remain constant or improve:

• Resistance Value: Must be 68 Ohms (no deviation)
• Power Rating: Must be 1W (no reduction)
• Package Type: Must be Axial (mechanical and electrical compatibility)
• Physical Dimensions: Must be 0.126" Dia x 0.437" L (3.20mm x 11.10mm) for PCB layout compatibility
• Composition: Wirewound (electrical performance characteristics)
• Temperature Coefficient: ±20ppm/°C (thermal stability)

Tolerance and compliance certifications may be upgraded without affecting substitution validity. The Ohmite 41F68RE qualifies as a direct substitute by maintaining all core parameters while offering improved tolerance (±1% versus ±5%).

Parameter Comparison

Engineering Selection Recommendations

The Ohmite 41F68RE serves as a direct substitute for the 41J68RE in applications where tolerance requirements are tighter than ±5%. Both components maintain active product status and comply with RoHS regulations. The 41F68RE offers improved tolerance specification (±1%) while preserving identical electrical performance characteristics, power rating, and physical form factor. Selection between these parts depends on circuit tolerance requirements and design specifications rather than functional limitations.

Frequently Asked Questions (FAQ)

Q: Can the 41F68RE replace the 41J68RE in existing designs?

A: Yes. The 41F68RE is mechanically and electrically compatible with the 41J68RE. Both components share identical resistance values, power ratings, physical dimensions, and axial package configuration. The substitute part offers improved tolerance specification.

Q: What is the primary difference between these two resistors?

A: The tolerance specification differs. The 41J68RE is rated at ±5% tolerance, while the 41F68RE is rated at ±1% tolerance. All other electrical and mechanical parameters remain identical.

Q: Are both parts RoHS compliant?

A: Yes. The 41J68RE is RoHS3 Compliant, and the 41F68RE is RoHS Compliant. Both meet current environmental and regulatory standards.

Q: Will the 41F68RE fit the same PCB footprint as the 41J68RE?

A: Yes. Both resistors share identical physical dimensions of 0.126" Dia x 0.437" L (3.20mm x 11.10mm) and use the same axial package configuration, ensuring direct mechanical compatibility.

Q: Should I upgrade to the 41F68RE for improved tolerance?

A: Upgrade decisions depend on circuit tolerance requirements. If your design specifies tolerance tighter than ±5%, the 41F68RE is appropriate. If ±5% tolerance meets design specifications, either part is suitable.