41F3R0 Equivalent & Substitute Parts

Part Overview

The Ohmite 41F3R0 is a 3 Ohm ±1% 1W axial wirewound through-hole resistor from the Ohmicone® 40 series. This component is currently active in production. Substitute parts may be required due to inventory availability, packaging preferences, compliance requirements, or specific application needs such as moisture resistance or RoHS compliance.

Substiute Parts

41F3R0

OhmiteIn Stock: 106341F3R0 Datasheet

Current PartRFQ

41F3R0E

OhmiteIn Stock: 69841F3R0E Datasheet

Parametric EquivalentRFQ

ALSR013R000FE12

Vishay DaleIn Stock: 1055ALSR013R000FE12 Datasheet

DirectRFQ

RS01A3R000FE70

Vishay DaleIn Stock: 1522RS01A3R000FE70 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 41F3R0 are qualified based on the following electrical and mechanical parameters:

• Resistance value: 3 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 1W (exact match required)
• Composition: Wirewound (exact match required)
• Package type: Axial (exact match required)
• Temperature coefficient: ±50ppm/°C (exact match required)
• Number of terminations: 2 (exact match required)

All substitute parts listed maintain these core parameters. Variations exist in packaging format, physical dimensions, RoHS compliance status, and moisture resistance features, which are noted in the comparison table below.

Parameter Comparison

Engineering Selection Recommendations

Selection among the 41F3R0 and its substitutes should be based on the following criteria:

41F3R0 (Ohmite): Use when RoHS non-compliance is acceptable and standard packaging is preferred. This part maintains the original design specification and is available in the highest quantity (1010 pcs).

41F3R0E (Ohmite): Use when ROHS3 compliance is required while maintaining the same manufacturer and identical electrical specifications. Available in bulk packaging with 685 pcs in stock.

ALSR013R000FE12 (Vishay Dale): Use when ROHS3 compliance and moisture resistance are required. This part offers an extended operating temperature range (-65°C ~ 250°C) and moisture-resistant construction. Available in bulk packaging with 1034 pcs in stock. Note: Physical dimensions are slightly smaller (0.110" Dia x 0.406" L).

RS01A3R000FE70 (Vishay Dale): Use when ROHS3 compliance, moisture resistance, and cut tape packaging are required. This part offers the same extended operating temperature range and moisture-resistant features as the ALSR013R000FE12. Highest inventory availability (1467 pcs). Note: Physical dimensions are the smallest of all options (0.094" Dia x 0.406" L).

Frequently Asked Questions (FAQ)

Q: Can I substitute the 41F3R0 with any of the listed parts?

A: Yes, all listed parts are electrically equivalent. They share identical resistance value (3 Ohms), tolerance (±1%), power rating (1W), composition (wirewound), temperature coefficient (±50ppm/°C), and axial package type. Physical dimensions vary slightly, and compliance certifications differ. Verify that your application can accommodate the dimensional variations and compliance requirements before substitution.

Q: What is the difference between the Ohmite 41F3R0 and 41F3R0E?

A: Both parts are manufactured by Ohmite and are electrically identical. The primary difference is RoHS compliance: the 41F3R0 is RoHS non-compliant, while the 41F3R0E is ROHS3 compliant. The 41F3R0E is available in bulk packaging.

Q: Why are the Vishay Dale parts smaller in physical size?

A: The ALSR013R000FE12 and RS01A3R000FE70 are designed with more compact dimensions while maintaining the same electrical specifications. The ALSR013R000FE12 measures 0.110" Dia x 0.406" L, and the RS01A3R000FE70 measures 0.094" Dia x 0.406" L, compared to the 41F3R0 at 0.126" Dia x 0.437" L. Verify that your PCB layout and mechanical constraints can accommodate these dimensional differences.

Q: What does "moisture resistant" mean for these resistors?

A: The ALSR013R000FE12 and RS01A3R000FE70 feature moisture-resistant construction, which provides enhanced protection against humidity and environmental moisture exposure. This is beneficial for applications in humid environments or where extended operating temperature ranges are required.

Q: Which substitute part should I choose for a new design?

A: For new designs requiring RoHS compliance and extended operating temperature range (-65°C ~ 250°C), either the ALSR013R000FE12 or RS01A3R000FE70 is recommended. Choose based on packaging preference: bulk for ALSR013R000FE12 or cut tape for RS01A3R000FE70. Both offer moisture-resistant construction and are available in high quantities.

Q: Are there any REACH or ECCN differences between these parts?

A: All parts share the same ECCN classification (EAR99) and HTSUS code (8533.21.0080). The 41F3R0 and RS01A3R000FE70 are REACH Unaffected. The 41F3R0E is REACH Unaffected. The ALSR013R000FE12 has Vendor Undefined REACH status; verify with the supplier if REACH compliance documentation is required for your application.