Ohmite 41J15RE Equivalent & Substitute Parts

Part Overview

The Ohmite 41J15RE is a 1W wirewound axial resistor with 15 Ohms resistance and ±5% tolerance, designed for through-hole applications. This component is currently active in production and widely used in electronic circuits requiring precision power dissipation and thermal stability. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required, such as when the primary part becomes unavailable or when tighter tolerance specifications are needed for specific applications.

Substiute Parts

41J15RE

OhmiteIn Stock: 86941J15RE Datasheet

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41F15RE

OhmiteIn Stock: 87941F15RE Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The Ohmite 41F15RE qualifies as a direct substitute for the 41J15RE based on the following critical parameters:

• Resistance Value: Both parts are 15 Ohms
• Power Rating: Both are rated at 1W
• Composition: Both are wirewound construction
• Package Type: Both use axial through-hole configuration
• Physical Dimensions: Identical at 0.126" Dia x 0.437" L (3.20mm x 11.10mm)
• Temperature Coefficient: Both maintain ±20ppm/°C stability
• Operating Temperature Range: Both operate across -55°C to 275°C
• RoHS Compliance: Both are RoHS Compliant
• Moisture Sensitivity: Both are MSL 1 (Unlimited)

The primary difference is tolerance specification: the 41F15RE provides ±1% tolerance compared to the 41J15RE's ±5% tolerance. This represents an upgrade in precision while maintaining all other electrical and mechanical characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both the 41J15RE and 41F15RE are active production components from Ohmite with full RoHS compliance and identical mechanical compatibility. Selection between these parts depends on tolerance requirements:

• 41J15RE (±5% tolerance): Suitable for general-purpose applications where standard tolerance specifications are acceptable
• 41F15RE (±1% tolerance): Appropriate for precision circuits requiring tighter resistance value control

Both parts maintain identical thermal characteristics, operating temperature ranges, and physical form factors, ensuring direct substitution capability in through-hole PCB layouts. The choice between them is determined solely by the tolerance specification required by the circuit design.

Frequently Asked Questions (FAQ)

Q: Can the 41F15RE replace the 41J15RE in existing designs?

A: Yes. The 41F15RE is mechanically and electrically compatible with the 41J15RE. Both parts share identical power ratings, physical dimensions, temperature coefficients, and operating temperature ranges. The 41F15RE provides improved tolerance (±1% versus ±5%), making it suitable for direct substitution.

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

A: The tolerance specification differs. The 41J15RE has ±5% tolerance, while the 41F15RE has ±1% tolerance. All other electrical and mechanical parameters are identical.

Q: Are both parts suitable for high-temperature applications?

A: Yes. Both the 41J15RE and 41F15RE operate across the same temperature range of -55°C to 275°C with identical temperature coefficients of ±20ppm/°C.

Q: Do these parts require any special handling or storage considerations?

A: Both parts are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard component storage practices apply.

Q: Are both parts RoHS compliant?

A: Yes. Both the 41J15RE and 41F15RE are RoHS Compliant, meeting environmental and regulatory requirements for electronic component manufacturing.

Q: Can these axial wirewound resistors be used in surface-mount applications?

A: No. Both parts are designed for through-hole mounting only. The axial package type requires insertion into PCB holes and is not compatible with surface-mount assembly processes.