Ohmite 41J40R Equivalent & Substitute Parts

Part Overview

The Ohmite 41J40R is a 40 Ohm, 1W axial wirewound through-hole resistor with ±5% tolerance. This component is classified as Active product status and is currently in stock with 943 units available. The 41J40R is part of the Ohmicone® 40 series and serves as a precision current-limiting and load resistor in electronic circuits requiring stable resistance values across temperature variations.

Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and termination configurations match the original component, enabling direct replacement in circuit applications without redesign.

Substiute Parts

41J40R

OhmiteIn Stock: 103841J40R Datasheet

Current PartRFQ

41J40RE

OhmiteIn Stock: 78641J40RE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 41J40R are identified based on strict electrical and mechanical parameter matching:

Substitution Criteria:

• Resistance value: 40 Ohms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 1W (exact match required)
• Composition: Wirewound (exact match required)
• Package configuration: Axial (exact match required)
• Temperature coefficient: ±20ppm/°C (exact match required)
• Physical dimensions: 0.126" Dia x 0.437" L (exact match required)
• Termination count: 2 (exact match required)

The 41J40RE meets all substitution criteria and is classified as a parametric equivalent. Both components share identical electrical specifications and mechanical form factors, enabling direct circuit substitution.

Parameter Comparison

Engineering Selection Recommendations

Both the 41J40R and 41J40RE are Active status components manufactured by Ohmite with identical electrical and mechanical specifications. Selection between these parts should be based on the following factors:

RoHS Compliance: The 41J40R is RoHS non-compliant, while the 41J40RE is ROHS3 compliant. Applications requiring RoHS3 compliance must use the 41J40RE.

Packaging: The 41J40R is supplied in standard packaging, while the 41J40RE is supplied in Bulk packaging. Packaging selection depends on procurement and assembly requirements.

Availability: The 41J40R has 943 units in stock, while the 41J40RE has 705 units in stock. Both components are available for immediate delivery.

Regulatory Status: Both components are REACH Unaffected and classified under ECCN EAR99 with HTSUS code 8533.21.0080.

Frequently Asked Questions (FAQ)

Q: Can the 41J40RE directly replace the 41J40R in existing designs?

A: Yes. The 41J40RE is a parametric equivalent with identical resistance, tolerance, power rating, composition, package type, temperature coefficient, and physical dimensions. Direct substitution is electrically and mechanically compatible.

Q: What is the primary difference between the 41J40R and 41J40RE?

A: The primary difference is RoHS compliance status. The 41J40R is RoHS non-compliant, while the 41J40RE is ROHS3 compliant. Both components are otherwise electrically and mechanically identical.

Q: Are there any temperature or operating condition differences between these parts?

A: No. Both components share identical temperature coefficient specifications (±20ppm/°C) and are rated for the same 1W power dissipation. Operating conditions are equivalent.

Q: Does packaging type affect electrical performance?

A: No. The 41J40R and 41J40RE differ only in packaging format (standard versus Bulk). Electrical performance and circuit behavior are identical regardless of packaging type.

Q: Which part should be selected for new designs?

A: Selection depends on regulatory requirements. For applications requiring RoHS3 compliance, the 41J40RE is the appropriate choice. For applications without RoHS compliance requirements, either part is suitable based on availability and packaging needs.