Honeywell 53C12500 Potentiometer: Equivalent & Substitute Parts

Part Overview

The Honeywell Sensing and Productivity Solutions 53C12500 is a 2.5k Ohm, 2W linear panel mount potentiometer with conductive plastic resistive material and solder lug termination. This component is classified as obsolete, necessitating identification of active substitute parts for ongoing applications and new designs. The 53C series potentiometer features a 1-gang configuration with 312° rotation and round actuator design suitable for user-defined adjustment applications.

Substiute Parts

53C12500

Honeywell Sensing and Productivity SolutionsIn Stock: 70153C12500 Datasheet

Current PartRFQ

CU2521E

OhmiteIn Stock: 1099CU2521E Datasheet

DirectRFQ

RV4NAYSJ252A

Precision Electronics CorporationIn Stock: 848RV4NAYSJ252A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Honeywell 53C12500 is determined by strict equivalence across the following critical parameters: resistance value (2.5k Ohm), power rating (2W), tolerance (±10%), taper type (Linear), termination style (Solder Lug), mounting configuration (Panel Mount), bushing thread specification (3/8-32), and actuator dimensions (2.000" length, 0.250" diameter nominal).

The identified substitute parts—Ohmite CU2521E and Precision Electronics Corporation RV4NAYSJ252A—satisfy all mandatory electrical and mechanical parameters. Both substitutes maintain identical resistance, power rating, tolerance, taper, termination, and mounting specifications. Mechanical dimensions remain within acceptable tolerances for panel mount applications. The primary distinction between substitutes involves resistive material composition (carbon versus conductive plastic in the original) and minor variations in body diameter and actuator design, which do not affect functional equivalence in standard potentiometer applications.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are classified as active products, providing supply continuity for applications currently using the obsolete Honeywell 53C12500. The Ohmite CU2521E and Precision Electronics Corporation RV4NAYSJ252A maintain full electrical equivalence across resistance, power rating, tolerance, and taper specifications.

The Ohmite CU2521E presents direct mechanical compatibility with identical actuator dimensions and rotation angle (312°). This part carries ROHS3 compliance certification and is available in bulk packaging with 1021 units in stock.

The Precision Electronics Corporation RV4NAYSJ252A offers functional equivalence with minor mechanical variations: slotted actuator design (versus round), actuator diameter of 0.249" (6.32mm) versus 0.250" (6.35mm), and rotation angle of 314° (versus 312°). This part also carries ROHS3 compliance and is available with 819 units in stock.

Both substitutes are classified as REACH Unaffected and carry identical ECCN and HTSUS classifications as the original component. Selection between substitutes depends on specific mechanical interface requirements and actuator design preferences within the application assembly.

Frequently Asked Questions (FAQ)

Q: Can the Ohmite CU2521E directly replace the Honeywell 53C12500 in existing assemblies?

A: The Ohmite CU2521E maintains identical electrical specifications (2.5k Ohm, 2W, ±10% tolerance, linear taper) and mechanical dimensions (2.000" actuator length, 0.250" diameter, 3/8-32 bushing thread, 312° rotation). Direct substitution is supported for panel mount applications with solder lug termination.

Q: What is the difference between the resistive materials used in these potentiometers?

A: The Honeywell 53C12500 uses conductive plastic resistive material, while both substitute parts (Ohmite CU2521E and Precision Electronics RV4NAYSJ252A) use carbon resistive material. Both materials satisfy the specified electrical parameters and power rating for this application category.

Q: Are there mechanical compatibility concerns with the Precision Electronics RV4NAYSJ252A?

A: The RV4NAYSJ252A features a slotted actuator design compared to the round actuator of the original part. The actuator diameter is 0.249" (6.32mm) versus 0.250" (6.35mm), representing a 0.01mm difference within standard mechanical tolerances. The rotation angle is 314° versus 312°. These variations require verification against specific mechanical interface requirements in the application assembly.

Q: What compliance certifications apply to these substitute parts?

A: The Honeywell 53C12500 carries RoHS Compliance certification. Both substitute parts carry ROHS3 Compliance certification. All three parts are classified as EAR99 for export control purposes and share identical HTSUS classification (8533.40.8070). The substitute parts are REACH Unaffected.

Q: What is the current availability status of these parts?

A: The Honeywell 53C12500 is classified as obsolete with 691 units in stock. The Ohmite CU2521E is active with 1021 units in stock. The Precision Electronics RV4NAYSJ252A is active with 819 units in stock.

Q: Are the packaging formats compatible between the main part and substitutes?

A: The Honeywell 53C12500 is supplied in standard packaging. Both substitute parts are supplied in bulk packaging format, which is standard for active potentiometer distribution.