RT100AL2R20KB Equivalent & Substitute Parts

Part Overview

The RT100AL2R20KB is a 2.2 Ohm, 100W wirewound potentiometer manufactured by Vishay Sfernice, designed for panel mount applications with a 1-turn adjustment mechanism and solder lug termination. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations where similar performance characteristics are required.

Substiute Parts

RT100AL2R20KB

Vishay SferniceIn Stock: 747RT100AL2R20KB Datasheet

Current PartRFQ

RKS2R0E

OhmiteIn Stock: 1000RKS2R0E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The RKS2R0E from Ohmite qualifies as a manufacturer-recommended substitute based on the following critical parameters:

• Resistance Value: 2 Ohms (within ±10% tolerance band of 2.2 Ohms nominal)
• Power Rating: 100W (identical)
• Resistive Material: Wirewound (identical)
• Number of Turns: 1 (identical)
• Termination Style: Solder Lug (identical)
• Mounting Type: Panel Mount (identical)
• Rotation: 300° (identical)
• Tolerance: ±10% (identical)

The RKS2R0E maintains functional equivalence across all primary electrical and mechanical parameters required for direct substitution in applications originally specified for the RT100AL2R20KB.

Parameter Comparison

Engineering Selection Recommendations

The RKS2R0E is the designated manufacturer-recommended substitute for the obsolete RT100AL2R20KB. Selection of the RKS2R0E is supported by:

• Product Status: The RKS2R0E maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete RT100AL2R20KB.
• Compliance: The RKS2R0E carries ROHS3 compliance certification, meeting current environmental and regulatory standards for electronic component manufacturing.
• Electrical Equivalence: Resistance value of 2 Ohms falls within the ±10% tolerance specification of the original 2.2 Ohm design, maintaining circuit performance within design margins.
• Mechanical Compatibility: Identical mounting type, termination style, and rotation characteristics ensure direct physical and electrical integration into existing applications.

Frequently Asked Questions (FAQ)

Q: Can the RKS2R0E directly replace the RT100AL2R20KB in existing applications?

A: Yes. The RKS2R0E meets all critical substitution criteria: identical 100W power rating, wirewound construction, 1-turn configuration, solder lug termination, panel mount design, and 300° rotation. The 2 Ohm resistance value is within the ±10% tolerance band of the original 2.2 Ohm specification.

Q: What is the resistance difference between the two parts?

A: The RT100AL2R20KB is rated at 2.2 Ohms while the RKS2R0E is rated at 2 Ohms. This 0.2 Ohm difference represents approximately 9% variance, which falls within the ±10% tolerance specification for both components.

Q: Are there mechanical differences between these potentiometers?

A: Both components share identical mounting type (panel mount), termination style (solder lug), rotation (300°), and number of turns (1). Minor differences exist in actuator dimensions and bushing thread specifications, but these do not affect functional substitution in standard panel mount applications.

Q: What is the availability status of each part?

A: The RT100AL2R20KB is obsolete with limited remaining inventory. The RKS2R0E is in active production with established supply availability, making it the preferred choice for new designs and ongoing maintenance applications.

Q: Does the RKS2R0E meet current regulatory requirements?

A: Yes. The RKS2R0E is ROHS3 compliant, meeting current environmental and regulatory standards for electronic component manufacturing and distribution.