RT100AL1001KB Equivalent & Substitute Parts

Part Overview

The RT100AL1001KB is a 1k Ohm, 100W wirewound potentiometer manufactured by Vishay Sfernice, designed for panel mount applications with solder lug termination. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance, repair, and production continuity. Substitute parts must maintain identical electrical specifications and mechanical compatibility to ensure direct replacement without circuit redesign or mechanical modification.

Substiute Parts

RT100AL1001KB

Vishay SferniceIn Stock: 1061RT100AL1001KB Datasheet

Current PartRFQ

RKS1K0E

OhmiteIn Stock: 917RKS1K0E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RT100AL1001KB is determined by strict equivalence across the following critical parameters:

• Resistance value: 1k Ohm (exact match required)
• Power dissipation capability: 100W (exact match required)
• Resistive element type: Wirewound (exact match required)
• Number of turns: 1.0 (exact match required)
• Tolerance: ±10% (exact match required)
• Mounting configuration: Panel Mount (exact match required)
• Termination method: Solder Lug (exact match required)
• Rotation angle: 300° (exact match required)

The RKS1K0E from Ohmite satisfies all mandatory substitution criteria. Variations in secondary parameters such as taper type, actuator geometry, and bushing thread specifications do not preclude substitution when the primary electrical and mechanical interface requirements are met.

Parameter Comparison

Engineering Selection Recommendations

The RKS1K0E is the qualified substitute for RT100AL1001KB applications. Selection is based on the following factors:

• All critical electrical parameters match exactly: 1k Ohm resistance, 100W power rating, ±10% tolerance, and wirewound construction
• Mechanical interface compatibility is maintained: panel mount configuration, solder lug termination, 300° rotation, and single-turn design
• Product status: RKS1K0E is active and in production, ensuring supply chain availability and long-term support
• Compliance: RKS1K0E carries RoHS3 compliance certification, meeting current regulatory requirements for new designs and repairs

The RKS1K0E is suitable for direct substitution in existing circuits without modification to PCB layout, mechanical mounting, or electrical connections.

Frequently Asked Questions (FAQ)

Q: Can the RKS1K0E replace the RT100AL1001KB in existing applications?

A: Yes. The RKS1K0E meets all mandatory substitution criteria: identical resistance value (1k Ohm), power rating (100W), tolerance (±10%), wirewound construction, panel mount configuration, solder lug termination, and 300° rotation. Direct replacement is possible without circuit or mechanical redesign.

Q: What are the differences between these two potentiometers?

A: The primary differences are non-critical secondary parameters. The RKS1K0E features a linear taper (versus unspecified taper on the RT100AL1001KB), a flatted actuator (versus round), slightly different actuator dimensions, and includes a 3/8-32 bushing thread specification. These differences do not affect electrical performance or basic mechanical mounting compatibility.

Q: Why is the RT100AL1001KB obsolete?

A: The RT100AL1001KB is classified as obsolete by the manufacturer. The RKS1K0E from Ohmite is an active product with equivalent specifications and is recommended for new designs and replacement applications.

Q: Are there any compliance or certification differences?

A: The RKS1K0E carries RoHS3 compliance certification. The RT100AL1001KB does not list RoHS status. For applications requiring RoHS compliance, the RKS1K0E is the appropriate choice.

Q: What is the inventory status of the substitute part?

A: The RKS1K0E is available with 820 pieces in stock as new original inventory in bulk packaging, ensuring supply availability for immediate procurement.