Equivalent & Substitute Parts for RT100AL1501KB

Part Overview

The RT100AL1501KB is a 1.5k Ohm, 100W wirewound potentiometer manufactured by Vishay Sfernice, designed for panel mount applications with a 1-turn rotation and solder lug termination. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

RT100AL1501KB

Vishay SferniceIn Stock: 1142RT100AL1501KB Datasheet

Current PartRFQ

RKS1K5E

OhmiteIn Stock: 883RKS1K5E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RT100AL1501KB is based on matching the following critical electrical and mechanical parameters:

• Resistance value: 1.5k Ohm
• Power dissipation capability: 100W
• Resistive technology: Wirewound construction
• Termination method: Solder Lug
• Mounting configuration: Panel Mount
• Rotation angle: 300°
• Number of turns: 1
• Tolerance: ±10%

The RKS1K5E from Ohmite satisfies all these core requirements and is classified as an active product, providing long-term availability and supply chain stability.

Parameter Comparison

Engineering Selection Recommendations

The RKS1K5E is the qualified substitute for the RT100AL1501KB based on electrical and mechanical parameter equivalence. The primary advantage of selecting the RKS1K5E is its active product status, ensuring continued availability and manufacturing support. Additionally, the RKS1K5E carries ROHS3 compliance certification, meeting modern environmental and regulatory standards for electronic component manufacturing.

Minor mechanical variations exist between the two parts, including actuator type (round versus flatted), actuator length (0.984" versus 0.875"), and actuator diameter (0.236" versus 0.250"). These differences do not affect electrical performance or core functionality but should be evaluated within the context of specific mechanical mounting and control interface requirements of the application.

Frequently Asked Questions (FAQ)

Q: Can the RKS1K5E directly replace the RT100AL1501KB in existing applications?

A: Yes, the RKS1K5E provides electrical equivalence across all critical parameters: resistance value, power rating, tolerance, wirewound construction, solder lug termination, and panel mount configuration. Mechanical interface compatibility should be verified based on actuator geometry and bushing thread specifications specific to your application.

Q: What are the key differences between these two potentiometers?

A: The primary differences are product status (obsolete versus active), actuator geometry (round versus flatted), and regulatory compliance (ROHS3 certification on the RKS1K5E). Electrical performance and power handling are identical.

Q: Why is the RT100AL1501KB classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The RKS1K5E, as an active product, provides a path forward for applications requiring 1.5k Ohm, 100W wirewound potentiometers with panel mount configuration.

Q: Are there packaging differences between these parts?

A: The RT100AL1501KB is supplied in standard packaging, while the RKS1K5E is supplied in bulk packaging. This distinction affects procurement and inventory management but does not impact component performance or compatibility.

Q: Does the RKS1K5E meet current environmental standards?

A: Yes, the RKS1K5E is ROHS3 compliant, meeting current environmental and regulatory requirements for electronic component manufacturing and use.