Ohmite 41F2R2 Equivalent & Substitute Parts

Part Overview

The Ohmite 41F2R2 is a 2.2 Ohm, 1% tolerance, 1W through-hole axial wirewound resistor from the Ohmicone® 40 series. This component is designed for applications requiring precision current limiting, load balancing, and power dissipation in electronic circuits. The part maintains active product status with 944 units in current inventory. Substitute parts are identified when original stock becomes unavailable or when procurement from alternative sources is necessary while maintaining equivalent electrical and mechanical performance.

Substiute Parts

41F2R2

OhmiteIn Stock: 99341F2R2 Datasheet

Current PartRFQ

41F2R2E

OhmiteIn Stock: 77641F2R2E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 41F2R2 are qualified based on the following critical parameters that determine functional equivalence:

• Resistance Value: 2.2 Ohms (exact match required)
• Tolerance: ±1% (maintains precision specifications)
• Power Rating: 1W (ensures adequate thermal handling)
• Package Type: Axial (ensures mechanical compatibility with PCB layouts)
• Composition: Wirewound (maintains temperature coefficient and stability characteristics)
• Termination Configuration: 2-terminal axial leads (ensures pin compatibility)

The 41F2R2E qualifies as a parametric equivalent based on these core electrical and mechanical specifications. Both parts are manufactured by Ohmite and share identical resistance, tolerance, power rating, and package configuration.

Parameter Comparison

Engineering Selection Recommendations

Both the 41F2R2 and 41F2R2E are active products from Ohmite with identical electrical specifications and axial package configuration. Selection between these parts should be based on:

Availability: The 41F2R2 maintains higher inventory levels (944 units) compared to the 41F2R2E (709 units). Use the 41F2R2E as a substitute when primary stock is depleted.

Compliance Status: Both parts carry RoHS non-compliant designation and EAR99 export classification. Regulatory requirements for your application should be evaluated independently of part selection.

Packaging: The 41F2R2 is supplied in standard packaging, while the 41F2R2E is available in bulk packaging. Bulk packaging may be advantageous for high-volume production runs.

Electrical Performance: No electrical performance differentiation exists between these parts. Both deliver 2.2 Ohm resistance at ±1% tolerance with 1W power dissipation capability.

Frequently Asked Questions (FAQ)

Q: Can the 41F2R2E be used as a direct replacement for the 41F2R2?

A: Yes. Both parts are manufactured by Ohmite with identical resistance (2.2 Ohms), tolerance (±1%), power rating (1W), and axial package configuration. They are electrically and mechanically equivalent.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by: resistance value (2.2 Ohms), tolerance (±1%), power rating (1W), package type (axial), composition (wirewound), and termination configuration (2-terminal). All these parameters must match exactly.

Q: Does packaging format affect electrical performance?

A: No. The difference between standard and bulk packaging is logistical only. Bulk packaging does not alter the electrical characteristics or performance of the 41F2R2E resistor.

Q: Are there any temperature coefficient differences between these parts?

A: The 41F2R2 specifies a temperature coefficient of ±50ppm/°C. The 41F2R2E temperature coefficient specification is not provided in the available data. Verify temperature coefficient requirements for your specific application before final selection.

Q: What is the physical size compatibility between these parts?

A: Both parts use axial package configuration with identical dimensions: 0.126" diameter x 0.437" length (3.20mm x 11.10mm). They are mechanically interchangeable in PCB layouts designed for axial through-hole resistors.

Q: Are there any export or regulatory restrictions on these parts?

A: Both parts carry EAR99 export classification and RoHS non-compliant status. Verify compliance requirements for your end-use application and destination market independently.