Equivalent & Substitute Parts for Ohmite 41F2K7E

Part Overview

The Ohmite 41F2K7E is a 2.7 kOhms ±1% 1W axial wirewound through-hole resistor from the Ohmicone® 40 series. This component is classified as Active product status with ROHS3 compliance. Substitute parts are identified when equivalent electrical and mechanical parameters are required for applications where the primary part is unavailable or when specific packaging or compliance requirements necessitate alternative sourcing.

Substiute Parts

41F2K7E

OhmiteIn Stock: 88041F2K7E Datasheet

Current PartRFQ

RS01A2K700FE70

Vishay DaleIn Stock: 1351RS01A2K700FE70 Datasheet

MFR RecommendedRFQ

41F2K7

OhmiteIn Stock: 99141F2K7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 41F2K7E are qualified based on the following electrical and mechanical parameters:

• Resistance value: 2.7 kOhms
• Tolerance: ±1%
• Power rating: 1W
• Composition: Wirewound
• Temperature coefficient: ±20ppm/°C
• Package configuration: Axial through-hole
• Termination count: 2
• RoHS compliance status

Two substitute parts are identified:

MFR Recommended Substitute: Vishay Dale RS01A2K700FE70 — Meets all electrical parameters with identical resistance, tolerance, power rating, and temperature coefficient. Provides moisture-resistant construction and defined operating temperature range (-65°C ~ 250°C). Available in Cut Tape packaging with ROHS3 compliance.

Parametric Equivalent: Ohmite 41F2K7 — Identical electrical and mechanical specifications to the primary part. Same series, resistance, tolerance, power rating, and package dimensions. Differs in RoHS compliance status (non-compliant) and packaging format (Bulk).

Parameter Comparison

Engineering Selection Recommendations

For ROHS3-compliant applications: The Vishay Dale RS01A2K700FE70 is the primary substitute, offering full ROHS3 compliance with moisture-resistant construction and a specified operating temperature range. The Ohmite 41F2K7 is not suitable due to non-compliant RoHS status.

For equivalent Ohmite sourcing: The 41F2K7 provides parametric equivalence with identical electrical specifications and physical dimensions. Selection depends on RoHS compliance requirements and packaging format needs (Bulk vs. Cut Tape).

For dimensional constraints: The RS01A2K700FE70 has reduced physical dimensions (0.094" Dia x 0.406" L) compared to the 41F2K7E and 41F2K7 (0.126" Dia x 0.437" L). Verify PCB layout compatibility before substitution.

Frequently Asked Questions (FAQ)

Q: Can the Vishay Dale RS01A2K700FE70 be used as a direct replacement for the Ohmite 41F2K7E?

A: Yes, the RS01A2K700FE70 meets all electrical parameters (2.7 kOhms, ±1%, 1W, ±20ppm/°C) and maintains ROHS3 compliance. Physical dimensions differ slightly; verify PCB footprint compatibility.

Q: What is the difference between the 41F2K7E and 41F2K7?

A: Both are Ohmite wirewound resistors with identical electrical specifications and physical dimensions. The primary difference is RoHS compliance status: 41F2K7E is ROHS3 compliant, while 41F2K7 is non-compliant. Packaging format also differs (Bulk vs. Bulk).

Q: Are all substitute parts suitable for high-temperature applications?

A: The RS01A2K700FE70 specifies an operating temperature range of -65°C ~ 250°C. The 41F2K7E and 41F2K7 do not provide defined operating temperature ranges in the available specifications.

Q: Does the moisture-resistant feature of the RS01A2K700FE70 affect electrical performance?

A: Moisture-resistant construction does not alter the core electrical parameters. All three parts maintain ±1% tolerance and ±20ppm/°C temperature coefficient.

Q: What packaging considerations apply when selecting a substitute?

A: The 41F2K7E and 41F2K7 are supplied in Bulk packaging, while the RS01A2K700FE70 is supplied in Cut Tape format. Verify procurement and assembly process compatibility with your supply chain requirements.