Honeywell 53C350K Potentiometer: Equivalent & Substitute Parts

Part Overview

The Honeywell 53C350K is a 50k Ohm, 2-watt linear panel mount potentiometer featuring conductive plastic resistive material and solder lug termination. This component is classified as obsolete, necessitating identification of active substitute parts for new designs and ongoing production requirements. The 53C series potentiometer is designed for applications requiring precise linear resistance adjustment with panel-mounted configuration and user-defined adjustment capability.

Substiute Parts

53C350K

Honeywell Sensing and Productivity SolutionsIn Stock: 114453C350K Datasheet

Current PartRFQ

RV4NAYSD503A

Precision Electronics CorporationIn Stock: 1924RV4NAYSD503A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Honeywell 53C350K is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 50k Ohm
• Power rating: 2W
• Taper characteristic: Linear
• Number of gangs: 1
• Number of turns: 1
• Termination style: Solder Lug
• Mounting configuration: Panel Mount
• Bushing thread specification: 3/8-32
• Tolerance: ±10%
• Actuator type: Slotted

The RV4NAYSD503A from Precision Electronics Corporation meets all mandatory electrical and mechanical parameters. The primary difference lies in the resistive material composition (carbon versus conductive plastic) and product status (active versus obsolete). Both components maintain equivalent functional performance within the specified parameter ranges.

Parameter Comparison

Engineering Selection Recommendations

The RV4NAYSD503A potentiometer from Precision Electronics Corporation is the designated substitute for the obsolete Honeywell 53C350K. Selection of this substitute is based on the following engineering criteria:

Product Status Justification: The 53C350K is classified as obsolete, making continued procurement impossible for new production. The RV4NAYSD503A maintains active product status with confirmed inventory availability (1856 pcs in stock).

Electrical Equivalence: Both components provide identical electrical specifications: 50k Ohm resistance, 2-watt power rating, ±10% tolerance, and linear taper characteristic. Functional performance in circuit applications remains unchanged.

Mechanical Compatibility: Panel mount configuration, 3/8-32 bushing thread, solder lug termination, and slotted actuator design are identical. Minor dimensional variations (actuator diameter 0.249" versus 0.250", body diameter 1.120" versus 1.094", rotation 314° versus 312°) fall within functional equivalence for panel-mounted applications.

Compliance Enhancement: The RV4NAYSD503A achieves ROHS3 compliance, whereas the 53C350K is non-compliant. This substitution improves regulatory compliance for applications subject to RoHS requirements.

Resistive Material Difference: The substitute employs carbon resistive material instead of conductive plastic. Both materials are established technologies for linear potentiometer applications and maintain equivalent performance within the specified electrical parameters.

Frequently Asked Questions (FAQ)

Q: Can the RV4NAYSD503A directly replace the Honeywell 53C350K in existing designs?

A: Yes. The RV4NAYSD503A meets all mandatory electrical and mechanical parameters. Panel mount configuration, bushing thread, termination style, and actuator specifications are identical. Minor dimensional variations do not affect functional compatibility in panel-mounted applications.

Q: What is the significance of the resistive material difference (conductive plastic versus carbon)?

A: Both conductive plastic and carbon are established resistive materials for linear potentiometer applications. Within the specified electrical parameters (50k Ohm, 2W, ±10% tolerance, linear taper), both materials deliver equivalent functional performance. Material selection does not affect circuit compatibility.

Q: Are there compliance differences between these components?

A: Yes. The RV4NAYSD503A is ROHS3 compliant, while the 53C350K is non-compliant. For applications subject to RoHS requirements, the substitute provides improved regulatory compliance. Both components carry identical ECCN (EAR99) and HTSUS (8533.40.8070) classifications.

Q: What are the dimensional tolerances for mechanical compatibility?

A: Actuator diameter varies by 0.001" (0.249" versus 0.250"), body diameter by 0.026" (1.120" versus 1.094"), and rotation by 2° (314° versus 312°). These variations are within functional tolerance for panel-mounted potentiometer applications and do not compromise mechanical fit or electrical performance.

Q: Is the RV4NAYSD503A available in the same packaging as the 53C350K?

A: The RV4NAYSD503A is supplied in bulk packaging, whereas the 53C350K packaging specification is not provided in the technical data. Both components are supplied as individual units suitable for solder lug termination and panel mount installation.

Q: What inventory status should be considered for procurement decisions?

A: The 53C350K is obsolete with 1118 pcs listed as new original in stock. The RV4NAYSD503A is active with 1856 pcs in stock, providing assured long-term availability for production requirements.