RT100AS4700KB Equivalent & Substitute Parts

Part Overview

The RT100AS4700KB is a 470 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, repair, and new design implementations where similar electrical and mechanical characteristics are required.

Substiute Parts

RT100AS4700KB

Vishay SferniceIn Stock: 906RT100AS4700KB Datasheet

Current PartRFQ

RKS500E

OhmiteIn Stock: 1151RKS500E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RT100AS4700KB is determined by strict equivalence across the following critical parameters: power rating (100W), resistive material (wirewound), mounting configuration (panel mount), termination method (solder lug), number of turns (1), rotation angle (300°), and tolerance (±10%). The resistance value of 470 Ohms represents the nominal specification; however, substitutes within the same tolerance band and functional class are acceptable where circuit design permits minor resistance variations. The RKS500E from Ohmite meets these core substitution criteria while maintaining active product status and current manufacturing availability.

Parameter Comparison

Engineering Selection Recommendations

The RKS500E serves as the primary equivalent substitute for the RT100AS4700KB. Both components share identical electrical specifications (100W power rating, wirewound construction, ±10% tolerance, 1-turn configuration, 300° rotation) and mechanical compatibility (panel mount, solder lug termination). The resistance differential of 30 Ohms (470 Ohms versus 500 Ohms) represents a 6.4% variance, which falls within the ±10% tolerance band of both components and is acceptable for most circuit applications. The RKS500E maintains active product status with current manufacturing availability and ROHS3 compliance, providing supply chain continuity and regulatory alignment for new designs and system replacements.

Frequently Asked Questions (FAQ)

Q: Can the RKS500E directly replace the RT100AS4700KB in existing applications?

A: Yes, the RKS500E is mechanically and electrically compatible. Both components feature identical power ratings (100W), wirewound construction, panel mount configuration, solder lug termination, and 1-turn adjustment with 300° rotation. The 30 Ohm resistance difference (470 Ohms to 500 Ohms) represents a 6.4% variance within the ±10% tolerance specification of both parts.

Q: What are the key compatibility criteria for substitution?

A: Substitution is based on matching power rating, resistive material type, mounting method, termination style, number of turns, rotation angle, and tolerance band. These parameters ensure mechanical fit and electrical performance equivalence in the application circuit.

Q: Does the RKS500E meet current regulatory requirements?

A: Yes, the RKS500E is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards. The RT100AS4700KB, being obsolete, does not carry current compliance certifications.

Q: Are there mechanical differences between these components?

A: Minor dimensional variations exist in actuator length (25.00mm versus 22.23mm) and actuator diameter (6.00mm versus 6.35mm). Both components feature panel mount configuration with solder lug termination and are suitable for standard panel cutout installations.

Q: What is the resistance tolerance impact of substitution?

A: Both components carry ±10% tolerance. The RKS500E nominal value of 500 Ohms falls within the acceptable range for applications designed around the RT100AS4700KB 470 Ohm specification, provided circuit design permits this variance.