Honeywell 308N500 Potentiometer: Equivalent & Substitute Parts

Part Overview

The Honeywell 308N500 is a 500 Ohm, 1/2W linear panel mount potentiometer featuring conductive plastic resistive material and solder hook termination. This component is classified as obsolete, necessitating identification of active substitute parts for new designs and ongoing production requirements. The 308N series potentiometer serves applications requiring precise resistance adjustment with panel-mounted configuration and linear taper characteristics.

Substiute Parts

308N500

Honeywell Sensing and Productivity SolutionsIn Stock: 740308N500 Datasheet

Current PartRFQ

RV6NAYSD501A

Precision Electronics CorporationIn Stock: 1088RV6NAYSD501A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Honeywell 308N500 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 500 Ohms
• Power rating: 0.5W, 1/2W
• Tolerance: ±10%
• Taper type: Linear
• Number of turns: 1
• Number of gangs: 1
• Rotation angle: 295°
• Mounting configuration: Panel Mount
• Bushing thread specification: 1/4-32
• Actuator diameter: 0.125" (3.18mm)
• Actuator type: Slotted

The RV6NAYSD501A from Precision Electronics Corporation meets all mandatory electrical and mechanical parameters. Variations in resistive material (conductive plastic versus carbon), termination style (solder hook versus solder lug), body form factor (square versus round), and actuator length fall within acceptable substitution tolerances for panel mount potentiometer applications where these secondary characteristics do not impact circuit performance.

Parameter Comparison

Engineering Selection Recommendations

The Precision Electronics RV6NAYSD501A qualifies as a direct functional substitute for the obsolete Honeywell 308N500 based on electrical parameter equivalence and mechanical compatibility. The substitute part maintains active product status, ensuring continued availability and supply chain reliability. Both components satisfy RoHS compliance requirements, with the RV6NAYSD501A meeting the more stringent ROHS3 standard.

The transition from conductive plastic to carbon resistive material and from solder hook to solder lug termination represents acceptable engineering substitution within the potentiometer category. These material and termination differences do not alter the electrical performance characteristics required for 500 Ohm, 1/2W linear potentiometer applications. Panel mount configuration, bushing thread specification, and actuator geometry remain identical, ensuring mechanical interchangeability in existing panel layouts and control interfaces.

Frequently Asked Questions (FAQ)

Q: Can the RV6NAYSD501A replace the Honeywell 308N500 in existing designs?

A: Yes. The RV6NAYSD501A meets all critical electrical parameters (500 Ohms, ±10% tolerance, 0.5W/1/2W power rating, linear taper, 295° rotation) and mechanical specifications (panel mount, 1/4-32 bushing thread, 0.125" slotted actuator). Mechanical interchangeability is confirmed through identical mounting configuration and actuator geometry.

Q: What are the differences between these two potentiometers?

A: The primary differences are resistive material composition (conductive plastic versus carbon), termination style (solder hook versus solder lug), body form factor (square versus round), and actuator length (0.750" versus 0.875"). These differences do not affect electrical performance in standard potentiometer applications.

Q: Why is the Honeywell 308N500 obsolete?

A: Product obsolescence is determined by manufacturer discontinuation. The RV6NAYSD501A provides functional equivalence with active product status and current manufacturing support.

Q: Are there compliance differences between these parts?

A: Both components are RoHS compliant. The RV6NAYSD501A meets ROHS3 compliance and is REACH unaffected, providing enhanced regulatory alignment for current manufacturing standards.

Q: Does the change from solder hook to solder lug termination affect circuit performance?

A: No. Both termination styles provide equivalent electrical connection capability. Solder lug termination is standard in active production potentiometers and offers equivalent reliability for panel mount applications.

Q: Can I use the RV6NAYSD501A in applications originally designed for the 308N500?

A: Yes, provided the application does not require specific characteristics unique to conductive plastic resistive material or solder hook termination. For standard resistance adjustment applications, the carbon material and solder lug termination of the RV6NAYSD501A deliver equivalent performance.