RA30NASD103A Equivalent & Substitute Parts

Part Overview

The RA30NASD103A is a 10k Ohm wirewound potentiometer manufactured by Honeywell Sensing and Productivity Solutions. This is a 4W panel mount linear potentiometer with a 1-turn rotation and solder lug termination, designed for user-defined adjustment applications. The product is currently obsolete, making identification of suitable substitute components essential for ongoing maintenance, repair, and legacy system support. Substitute parts must maintain electrical compatibility while meeting current availability and compliance requirements.

Substiute Parts

RA30NASD103A

Honeywell Sensing and Productivity SolutionsIn Stock: 716RA30NASD103A Datasheet

Current PartRFQ

RHL10KE

OhmiteIn Stock: 785RHL10KE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RA30NASD103A is based on strict electrical and mechanical parameter matching. The following parameters must align for a component to function as a direct substitute:

Mandatory Matching Parameters:

• Resistance value: 10k Ohm (exact match required)
• Taper characteristic: Linear (functional equivalence)
• Number of turns: 1 (mechanical equivalence)
• Termination style: Solder Lug (circuit connection compatibility)
• Mounting type: Panel Mount (installation compatibility)
• Bushing thread: 3/8-32 (mechanical fit)
• Rotation angle: 300° (operational range)

Allowable Variations:

• Power rating: Substitute must equal or exceed 4W (higher power rating is acceptable and provides design margin)
• Tolerance: ±10% or tighter (tighter tolerance is acceptable)
• Physical dimensions: Minor variations acceptable if mounting and electrical function are preserved
• Product status: Active or obsolete (both acceptable for substitution purposes)
• Compliance certifications: RoHS or ROHS3 (both acceptable)

The RHL10KE from Ohmite meets all mandatory matching parameters and exceeds the power rating requirement at 25W, making it a valid electrical and mechanical substitute.

Parameter Comparison

Engineering Selection Recommendations

The RHL10KE from Ohmite is a direct electrical and mechanical substitute for the RA30NASD103A. Selection of this substitute is supported by the following factors:

Electrical Compatibility: The RHL10KE maintains identical resistance value (10k Ohm), tolerance (±10%), taper (Linear), and number of turns (1). The 25W power rating of the RHL10KE exceeds the 4W requirement of the original part, providing additional thermal margin in the application.

Mechanical Compatibility: Both components share identical mounting specifications including 3/8-32 bushing thread, panel mount configuration, 300° rotation angle, slotted actuator type, and 0.250" actuator diameter. Physical body dimensions differ slightly (1.560" vs 1.690" diameter), but this variation does not affect functional compatibility in standard panel mount applications.

Compliance Status: The RHL10KE is ROHS3 compliant and currently in active production, ensuring long-term availability and supply chain reliability. The original RA30NASD103A is RoHS compliant and obsolete.

Termination Compatibility: Both components use solder lug termination, ensuring direct circuit connection compatibility without adapter requirements.

Frequently Asked Questions (FAQ)

Q: Can the RHL10KE be used as a direct replacement for the RA30NASD103A in existing applications?

A: Yes. The RHL10KE meets all mandatory electrical and mechanical parameters. The higher power rating (25W vs 4W) is not a limitation and provides additional design margin. Panel mount configuration, bushing thread, and solder lug termination are identical.

Q: What is the significance of the power rating difference between the two parts?

A: The RHL10KE is rated for 25W while the RA30NASD103A is rated for 4W. A substitute with equal or higher power rating is acceptable. The higher rating indicates the RHL10KE can dissipate more heat without exceeding temperature limits, making it suitable for applications requiring the original 4W specification.

Q: Are there any physical dimension concerns when substituting the RHL10KE?

A: The RHL10KE body diameter is 1.560" compared to 1.690" for the RA30NASD103A. This 0.130" difference is minor and does not affect standard panel mount installations. Actuator length differs by 0.125" (0.750" vs 0.875"), which may require verification in applications with tight mechanical constraints.

Q: Does the RHL10KE meet current compliance requirements?

A: Yes. The RHL10KE is ROHS3 compliant and currently in active production. The original RA30NASD103A is RoHS compliant but obsolete.

Q: Are the electrical characteristics identical between these two potentiometers?

A: Yes. Both components have 10k Ohm resistance, ±10% tolerance, linear taper, 1-turn rotation, and 300° rotation angle. Resistive material is wirewound for both parts.

Q: What is the packaging difference between these parts?

A: The RA30NASD103A is supplied in standard packaging, while the RHL10KE is supplied in bulk packaging. This does not affect electrical or mechanical function.