RT100AS1000KB Equivalent & Substitute Parts

Part Overview

The RT100AS1000KB is a 100 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 essential for ongoing system maintenance, repair, and new design implementations where legacy component specifications must be maintained.

Substiute Parts

RT100AS1000KB

Vishay SferniceIn Stock: 1012RT100AS1000KB Datasheet

Current PartRFQ

RKS100E

OhmiteIn Stock: 919RKS100E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RT100AS1000KB is based on matching the following critical electrical and mechanical parameters:

• Resistance value: 100 Ohms
• Power dissipation capability: 100W
• Resistive element type: Wirewound construction
• Termination method: Solder Lug
• Mounting configuration: Panel Mount
• Adjustment range: 1-turn potentiometer
• Rotation angle: 300°
• Tolerance specification: ±10%

The RKS100E from Ohmite satisfies all mandatory substitution criteria. While minor differences exist in actuator geometry and taper specification, these do not affect electrical performance or core mechanical compatibility in panel mount applications.

Parameter Comparison

Engineering Selection Recommendations

The RKS100E is the designated manufacturer-recommended substitute for the RT100AS1000KB. Selection of the RKS100E is supported by:

• Active product status ensuring continued availability and supply chain reliability
• RoHS3 compliance meeting current environmental and regulatory standards
• Identical electrical specifications across all critical parameters
• Equivalent mechanical interface for panel mount installation
• Solder lug termination compatibility with existing circuit board layouts

The transition from the obsolete RT100AS1000KB to the active RKS100E presents no functional degradation and provides improved long-term component availability.

Frequently Asked Questions (FAQ)

Q: Can the RKS100E directly replace the RT100AS1000KB in existing applications?

A: Yes. Both components share identical resistance value, power rating, wirewound construction, solder lug termination, panel mount configuration, and 300° rotation specification. The RKS100E is the manufacturer-recommended substitute.

Q: What are the differences between these two potentiometers?

A: The primary differences are product status (RT100AS1000KB is obsolete; RKS100E is active), taper specification (RKS100E specifies linear taper), actuator geometry (different length and diameter dimensions), and regulatory compliance (RKS100E carries RoHS3 certification). These differences do not affect electrical performance or core mechanical compatibility.

Q: Is the RKS100E available in the same packaging as the RT100AS1000KB?

A: The RT100AS1000KB packaging information is not specified in available documentation. The RKS100E is supplied in bulk packaging. Verify packaging requirements for your specific application.

Q: Are there any thermal or environmental considerations when substituting these components?

A: Both components are rated for 100W power dissipation and are suitable for panel mount applications. No temperature coefficient data is provided for either component. Verify thermal management requirements for your specific circuit design.

Q: What is the significance of the taper specification difference?

A: The RT100AS1000KB taper is not specified. The RKS100E specifies linear taper, indicating proportional resistance change across the full rotation range. Confirm taper requirements for your application's control characteristics.