Ohmite 41F2K2 Equivalent & Substitute Parts

Part Overview

The Ohmite 41F2K2 is a 2.2 kOhms ±1% 1W through-hole resistor with axial wirewound composition. This component is classified as Active product status and is currently in stock with 1103 units available. The part operates with a temperature coefficient of ±20ppm/°C and is housed in an axial package measuring 0.126" diameter by 0.437" length. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same resistance value, tolerance, power rating, and package type.

Substiute Parts

41F2K2

OhmiteIn Stock: 114941F2K2 Datasheet

Current PartRFQ

41F2K2E

OhmiteIn Stock: 81241F2K2E Datasheet

DirectRFQ

ALSR012K200FE12

Vishay DaleIn Stock: 1004ALSR012K200FE12 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 41F2K2 are qualified based on the following critical parameters: resistance value of 2.2 kOhms, tolerance of ±1%, power rating of 1W, wirewound composition, and axial package configuration. These parameters define the functional and mechanical interchangeability of the component within its application circuit. All identified substitutes maintain these core electrical and physical specifications. Packaging format (bulk versus standard) and RoHS compliance status are secondary considerations that do not affect electrical performance but may influence procurement and regulatory requirements.

Parameter Comparison

Engineering Selection Recommendations

The 41F2K2E from Ohmite provides direct equivalence to the 41F2K2, maintaining identical electrical parameters and physical dimensions while offering ROHS3 compliance. This part is suitable for applications requiring regulatory compliance upgrades without circuit redesign.

The ALSR012K200FE12 from Vishay Dale meets all core electrical specifications with equivalent resistance, tolerance, and power rating. This substitute features a slightly smaller physical dimension (0.110" diameter versus 0.126" diameter) and includes moisture-resistant composition. The temperature coefficient is ±30ppm/°C compared to ±20ppm/°C for the Ohmite parts, and operating temperature range extends to -65°C ~ 250°C. ROHS3 compliance is confirmed. Physical dimension differences require verification of board layout compatibility before selection.

Frequently Asked Questions (FAQ)

Q: Can the 41F2K2E be used as a direct replacement for the 41F2K2?

A: Yes. The 41F2K2E maintains identical electrical specifications (2.2 kOhms ±1% 1W) and physical dimensions (0.126" Dia x 0.437" L). The primary difference is ROHS3 compliance status. No circuit modifications are required.

Q: What are the physical dimension differences between the Ohmite and Vishay Dale substitutes?

A: The ALSR012K200FE12 has a smaller diameter (0.110" versus 0.126") and shorter length (0.406" versus 0.437"). Board layout and component spacing must be verified to confirm mechanical compatibility.

Q: Does the higher temperature coefficient of the ALSR012K200FE12 affect circuit performance?

A: The ALSR012K200FE12 has a temperature coefficient of ±30ppm/°C compared to ±20ppm/°C for the Ohmite parts. This difference is application-dependent. Circuits with strict temperature stability requirements should evaluate this parameter against design tolerances.

Q: Are all substitute parts currently in stock?

A: Yes. The 41F2K2E has 759 units available, and the ALSR012K200FE12 has 982 units available. The original 41F2K2 has 1103 units in stock.

Q: What is the significance of the moisture-resistant feature on the ALSR012K200FE12?

A: The ALSR012K200FE12 includes moisture-resistant composition. This feature provides enhanced performance in humid or moisture-prone environments. Applications not requiring this feature can use standard wirewound alternatives.