41F270 Equivalent & Substitute Parts

Part Overview

The Ohmite 41F270 is a 270 Ohm ±1% 1W axial wirewound through-hole resistor from the Ohmicone® 40 series. This component is designed for applications requiring precision resistance with moderate power dissipation in a compact axial package. The part is currently active in production with 846 units in stock. Equivalent and substitute parts are identified when component availability is limited, procurement lead times are extended, or design requirements permit alternative manufacturers meeting identical or compatible electrical and mechanical specifications.

Substiute Parts

41F270

OhmiteIn Stock: 90341F270 Datasheet

Current PartRFQ

41F270E

OhmiteIn Stock: 122541F270E Datasheet

DirectRFQ

ALSR01270R0FE12

Vishay DaleIn Stock: 1217ALSR01270R0FE12 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 41F270 is determined by matching the following critical parameters: resistance value (270 Ohms), tolerance (±1%), power rating (1W), composition (wirewound), and package configuration (axial through-hole). All identified substitutes meet these core electrical and mechanical requirements, ensuring functional interchangeability in circuit applications.

The 41F270E is a direct Ohmite variant differing only in packaging format (bulk versus standard). The ALSR01270R0FE12 from Vishay Dale represents a cross-manufacturer substitute with identical electrical performance but includes moisture-resistant construction and operates across a different temperature range (-65°C ~ 250°C versus -55°C ~ 275°C for the 41F270E).

Parameter Comparison

Engineering Selection Recommendations

The 41F270E serves as the primary substitute for the 41F270, offering identical electrical specifications and physical dimensions while providing RoHS compliance. Both parts are manufactured by Ohmite and maintain the same temperature coefficient and operating range, making the 41F270E a direct replacement with no design modifications required.

The ALSR01270R0FE12 from Vishay Dale is a secondary substitute suitable for applications where moisture resistance is beneficial or where the lower operating temperature minimum (-65°C versus -55°C) is required. The slightly smaller physical dimensions (0.110" Dia x 0.406" L) and marginally higher temperature coefficient (±30ppm/°C versus ±20ppm/°C) must be evaluated against specific circuit requirements. This part achieves ROHS3 compliance and is available in equivalent stock quantities.

Frequently Asked Questions (FAQ)

Q: Can the 41F270E be used as a direct replacement for the 41F270?

A: Yes. The 41F270E maintains identical resistance (270 Ohms), tolerance (±1%), power rating (1W), temperature coefficient (±20ppm/°C), physical dimensions (0.126" Dia x 0.437" L), and axial package configuration. The primary difference is packaging format and RoHS compliance status.

Q: What are the key differences between the 41F270 and the ALSR01270R0FE12?

A: Both parts share identical resistance, tolerance, and power rating. The ALSR01270R0FE12 features a slightly higher temperature coefficient (±30ppm/°C versus ±20ppm/°C), operates across a lower minimum temperature (-65°C versus -55°C), includes moisture-resistant construction, and has marginally smaller physical dimensions (0.110" Dia x 0.406" L versus 0.126" Dia x 0.437" L).

Q: Are there any compliance differences between these parts?

A: The 41F270 is RoHS non-compliant. The 41F270E is RoHS Compliant. The ALSR01270R0FE12 is ROHS3 Compliant. Selection depends on regulatory requirements for the end application.

Q: Will the smaller dimensions of the ALSR01270R0FE12 affect circuit board layout?

A: The ALSR01270R0FE12 is approximately 0.016" smaller in diameter and 0.031" shorter in length. For most through-hole applications, this size difference is negligible. However, designs with tight spatial constraints should verify clearance before substitution.

Q: Which substitute part should be selected for new designs?

A: For new designs, the 41F270E is recommended as the primary choice, offering identical performance to the 41F270 with improved RoHS compliance. The ALSR01270R0FE12 is suitable when moisture resistance or extended low-temperature operation (-65°C minimum) is specified.