RA20LASB103A Equivalent & Substitute Parts

Part Overview

The RA20LASB103A is a 10k Ohm 2W wirewound linear panel mount potentiometer manufactured by Honeywell Sensing and Productivity Solutions. This component features a 1-turn design with solder lug termination, 300° rotation, and slotted actuator adjustment. The product is currently classified as obsolete, necessitating identification of functionally equivalent substitute components for ongoing applications and new designs requiring this specification class.

Substiute Parts

RA20LASB103A

Honeywell Sensing and Productivity SolutionsIn Stock: 788RA20LASB103A Datasheet

Current PartRFQ

95A1A-B24-A15L

Bourns Inc.In Stock: 539295A1A-B24-A15L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RA20LASB103A is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 10k Ohm (exact match required)
• Power rating: 2W (exact match required)
• Tolerance: ±10% (exact match required)
• Taper characteristic: Linear (exact match required)

Mechanical Parameters:

• Number of turns: 1 (exact match required)
• Number of gangs: 1 (exact match required)
• Rotation angle: 300° (exact match required)
• Termination style: Solder Lug (exact match required)
• Mounting configuration: Panel Mount (exact match required)
• Bushing thread specification: 3/8-32 (exact match required)
• Actuator type: Slotted (exact match required)

The substitute part 95A1A-B24-A15L from Bourns Inc. meets all critical electrical and mechanical parameters. The primary difference is the resistive material composition (Cermet vs. Wirewound), which does not affect functional equivalence for this application class.

Parameter Comparison

Engineering Selection Recommendations

The 95A1A-B24-A15L potentiometer from Bourns Inc. is the qualified substitute for the obsolete RA20LASB103A. Selection of this substitute is supported by the following factors:

Product Status: The RA20LASB103A is classified as obsolete, making the active-status 95A1A-B24-A15L the appropriate replacement for new procurement and ongoing production requirements.

Compliance Certifications: The 95A1A-B24-A15L maintains ROHS3 compliance and REACH affected status, meeting current regulatory requirements. The original RA20LASB103A carries RoHS compliance certification.

Electrical and Mechanical Equivalence: All critical parameters—resistance, power rating, tolerance, taper, number of turns, gangs, rotation angle, termination style, and mounting configuration—are identical between the two components.

Availability: The 95A1A-B24-A15L is available in active inventory (5290 Pcs), ensuring supply continuity for applications currently using the RA20LASB103A.

Frequently Asked Questions (FAQ)

Q: Can the 95A1A-B24-A15L directly replace the RA20LASB103A in existing designs?

A: Yes. The substitute part meets all critical electrical and mechanical specifications. Both components feature 10k Ohm resistance, 2W power rating, linear taper, 1-turn configuration, 300° rotation, solder lug termination, and 3/8-32 panel mount bushing thread. Physical mounting and electrical connection are compatible.

Q: What is the difference between wirewound and cermet resistive materials in these potentiometers?

A: The RA20LASB103A uses wirewound construction, while the 95A1A-B24-A15L uses cermet construction. Both materials achieve the specified 10k Ohm resistance and 2W power rating. The material difference does not affect functional equivalence for this application class.

Q: Are there any dimensional differences that affect panel mounting?

A: The actuator length differs slightly (0.625" vs. 0.750"), and body dimensions vary (round 1.125" dia vs. rectangular 0.687" x 0.625" face). However, both components use the identical 3/8-32 bushing thread and 0.250" actuator diameter, ensuring compatible panel mount installation. Verify available panel cutout space for the rectangular body profile of the substitute.

Q: Does the substitute part meet current regulatory requirements?

A: Yes. The 95A1A-B24-A15L is ROHS3 compliant and REACH affected, meeting current environmental and regulatory standards. The original RA20LASB103A is RoHS compliant.

Q: What is the temperature coefficient specification for the substitute part?

A: The 95A1A-B24-A15L specifies a temperature coefficient of ±150ppm/°C. The original RA20LASB103A does not provide a temperature coefficient specification in the available data.

Q: Is the substitute part available in the same packaging as the original?

A: The RA20LASB103A is packaged individually, while the 95A1A-B24-A15L is supplied in bulk packaging. Both are suitable for component-level procurement and assembly operations.