RT100AS2200KB Equivalent & Substitute Parts

Part Overview

The RT100AS2200KB is a 220 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 and new design implementations where this specific model is no longer available through standard distribution channels.

Substiute Parts

RT100AS2200KB

Vishay SferniceIn Stock: 1029RT100AS2200KB Datasheet

Current PartRFQ

RKS200E

OhmiteIn Stock: 977RKS200E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RT100AS2200KB is based on the following critical parameters that must remain consistent:

• Power Rating: 100W minimum (exact match required for thermal performance)
• Resistive Material: Wirewound (maintains frequency response and stability characteristics)
• Termination Style: Solder Lug (ensures mechanical and electrical compatibility with existing PCB layouts)
• Mounting Type: Panel Mount (preserves form factor and installation method)
• Number of Turns: 1 (maintains adjustment range and mechanical behavior)
• Rotation: 300° (defines operational range)
• Tolerance: ±10% (acceptable for circuit performance)

The RKS200E from Ohmite meets these core substitution criteria. The resistance value differs by 10 Ohms (200 Ohms vs. 220 Ohms), which falls within the ±10% tolerance band and is acceptable for most applications where the RT100AS2200KB is specified.

Parameter Comparison

Engineering Selection Recommendations

The RKS200E is the manufacturer-recommended substitute for the RT100AS2200KB. Selection of this alternative is supported by the following factors:

• Product Status: The RKS200E maintains active product status with current manufacturing and distribution support, whereas the RT100AS2200KB is obsolete.
• Compliance: The RKS200E is ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.
• Electrical Equivalence: All critical electrical parameters match or fall within acceptable tolerance bands. The 200 Ohm resistance of the RKS200E represents a 9.1% deviation from the 220 Ohm specification, remaining within the ±10% tolerance window.
• Mechanical Compatibility: Panel mount configuration, solder lug termination, and 300° rotation angle are identical, ensuring direct replacement capability in existing mechanical assemblies.
• Availability: The RKS200E is available in current inventory (928 Pcs), providing reliable supply for both replacement and new production applications.

Frequently Asked Questions (FAQ)

Q: Can the RKS200E directly replace the RT100AS2200KB in existing designs?

A: Yes. The RKS200E meets all critical substitution parameters: 100W power rating, wirewound construction, solder lug termination, panel mount configuration, and 300° rotation. The 200 Ohm resistance falls within the ±10% tolerance specification and is functionally equivalent for circuit applications.

Q: What is the significance of the 20 Ohm resistance difference between the two parts?

A: The RT100AS2200KB specifies 220 Ohms with ±10% tolerance, which establishes an acceptable range of 198 to 242 Ohms. The RKS200E at 200 Ohms falls within this range and is therefore electrically acceptable for applications designed around the original specification.

Q: Are there mechanical differences between these potentiometers?

A: Both components are panel mount wirewound potentiometers with solder lug termination and identical rotation angles. The RKS200E features a flatted actuator type and specifies a 3/8-32 bushing thread, whereas the RT100AS2200KB specifies a round actuator. These differences do not prevent mechanical compatibility in standard panel mount applications.

Q: What certifications does the RKS200E carry?

A: The RKS200E is ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory standards. The RT100AS2200KB, being obsolete, does not carry current compliance certifications.

Q: Is the linear taper of the RKS200E compatible with applications designed for the RT100AS2200KB?

A: The RT100AS2200KB does not specify a taper characteristic in the provided data. The RKS200E specifies linear taper, which is a standard configuration for general-purpose potentiometer applications. Compatibility depends on the specific circuit requirements; linear taper is suitable for most standard adjustment applications.