Ohmite 41J27RE Equivalent & Substitute Parts

Part Overview

The Ohmite 41J27RE is a 27 Ohms ±5% 1W through-hole resistor featuring axial wirewound construction. This component is part of the Ohmicone® 40 series and maintains active product status with 678 units in current inventory. The 41J27RE is designed for applications requiring reliable wirewound resistor performance across industrial and commercial temperature ranges from -55°C to 275°C. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility can be maintained while potentially offering improved tolerance or packaging advantages.

Substiute Parts

41J27RE

OhmiteIn Stock: 74941J27RE Datasheet

Current PartRFQ

41F27RE

OhmiteIn Stock: 119241F27RE Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 41J27RE is determined by the following critical parameters:

• Resistance Value: Must be 27 Ohms (exact match required)
• Power Rating: Must be 1W (exact match required)
• Package Type: Must be Axial wirewound (mechanical and electrical compatibility)
• Physical Dimensions: Must be 0.126" Dia x 0.437" L (3.20mm x 11.10mm) for PCB and assembly compatibility
• Temperature Coefficient: ±20ppm/°C (thermal stability requirement)
• Number of Terminations: Must be 2 (axial configuration)

The Ohmite 41F27RE qualifies as a substitute because it maintains all critical parameters while offering improved tolerance specification (±1% versus ±5%). Both components share identical resistance value, power rating, package configuration, physical dimensions, temperature coefficient, and axial termination design. The 41F27RE represents an upgrade path for applications requiring tighter tolerance control.

Parameter Comparison

Engineering Selection Recommendations

41J27RE Selection: Choose this part when tolerance specification of ±5% meets circuit requirements and standard RoHS compliance is sufficient. This configuration is suitable for general-purpose applications where tighter tolerance control is not critical.

41F27RE Selection: Choose this part when improved tolerance specification of ±1% is required for precision circuit applications. The 41F27RE offers ROHS3 compliance, representing enhanced environmental standards. Both parts maintain identical mechanical compatibility and thermal characteristics, enabling direct substitution in existing designs.

Both components are active products within the Ohmicone® 40 series, ensuring long-term availability and consistent manufacturing quality. Selection between these parts depends solely on tolerance requirements and compliance specifications for the target application.

Frequently Asked Questions (FAQ)

Q: Can the 41F27RE directly replace the 41J27RE in existing assemblies?

A: Yes. Both components share identical physical dimensions (0.126" Dia x 0.437" L), axial package configuration, and lead spacing. Direct substitution is mechanically and electrically compatible without PCB or assembly modifications.

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

A: The 41F27RE provides ±1% tolerance compared to the 41J27RE's ±5% tolerance. Both maintain identical 27 Ohm resistance value, 1W power rating, wirewound composition, and ±20ppm/°C temperature coefficient.

Q: Are there operating temperature differences between these parts?

A: The 41J27RE specifies -55°C to 275°C operating range. The 41F27RE does not specify an operating temperature range in the provided data. Both components use identical wirewound construction and temperature coefficient, indicating comparable thermal performance.

Q: Which part should be selected for new designs?

A: Selection depends on circuit tolerance requirements. For applications requiring ±5% tolerance, either part is suitable. For applications requiring ±1% tolerance, the 41F27RE is the appropriate selection. Both parts are active products with current inventory availability.

Q: Are there packaging differences between these parts?

A: The 41J27RE is supplied in Box packaging with 678 units in stock. The 41F27RE is supplied in Bulk packaging with 1163 units in stock. Physical component specifications and axial configuration are identical.

Q: Do both parts meet RoHS requirements?

A: Yes. The 41J27RE is RoHS Compliant. The 41F27RE is ROHS3 Compliant, representing an enhanced environmental standard. Both parts satisfy RoHS regulatory requirements.