RT100ASF10R0KB Equivalent & Substitute Parts

Part Overview

The RT100ASF10R0KB is a 10 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 active equivalent parts essential for ongoing system support, maintenance, and new design implementations where this specification remains functionally required.

Substiute Parts

RT100ASF10R0KB

Vishay SferniceIn Stock: 806RT100ASF10R0KB Datasheet

Current PartRFQ

RKS10RE

OhmiteIn Stock: 1109RKS10RE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RT100ASF10R0KB is determined by strict equivalence across the following critical parameters:

• Resistance Value: 10 Ohms (exact match required)
• Power Rating: 100W (exact match required)
• Resistive Material: Wirewound (exact match required)
• Number of Turns: 1 (exact match required)
• Termination Style: Solder Lug (exact match required)
• Mounting Type: Panel Mount (exact match required)
• Tolerance: ±10% (exact match required)
• Rotation: 300° (exact match required)

The RKS10RE from Ohmite meets all mandatory substitution criteria. While minor mechanical variations exist in actuator geometry and bushing thread specifications, these do not affect electrical performance or core functional compatibility in panel mount applications requiring 10 Ohm, 100W wirewound potentiometer operation.

Parameter Comparison

Engineering Selection Recommendations

The RKS10RE is the qualified substitute for the RT100ASF10R0KB based on the following factors:

• Product Status: The RKS10RE maintains active production status, ensuring long-term availability and supply chain continuity, whereas the RT100ASF10R0KB is obsolete.
• Compliance: The RKS10RE is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.
• Electrical Equivalence: All critical electrical parameters—resistance, power rating, tolerance, and resistive material—are identical between the two components.
• Functional Compatibility: Both components share identical mechanical mounting type, termination style, and operational specifications required for panel mount potentiometer applications.

Selection of the RKS10RE eliminates obsolescence risk while maintaining full functional and electrical compatibility with applications originally specified for the RT100ASF10R0KB.

Frequently Asked Questions (FAQ)

Q: Can the RKS10RE be used as a direct replacement for the RT100ASF10R0KB?

A: Yes. Both components share identical electrical specifications (10 Ohm, 100W, wirewound, ±10% tolerance, 1-turn, solder lug termination, panel mount). The RKS10RE is the manufacturer-recommended substitute and is currently in active production.

Q: What are the mechanical differences between these components?

A: The RKS10RE features a flatted actuator type with 0.875" length and 0.250" diameter, compared to the RT100ASF10R0KB's round actuator at 0.984" length and 0.236" diameter. The RKS10RE includes a 3/8-32 bushing thread and round body measuring 3.125" diameter. These mechanical variations do not affect electrical performance or core functional operation in panel mount applications.

Q: Why is the RT100ASF10R0KB obsolete?

A: The RT100ASF10R0KB is classified as obsolete by the manufacturer. The RKS10RE from Ohmite provides equivalent electrical and functional performance with the advantage of active production status and current regulatory compliance.

Q: Are there compliance differences between the two parts?

A: Yes. The RKS10RE is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards. The RT100ASF10R0KB's compliance status is not specified in available documentation.

Q: What packaging is available for the RKS10RE?

A: The RKS10RE is supplied in bulk packaging, with 1068 pieces currently in stock as new original inventory.