Equivalent & Substitute Parts for Honeywell 62JA2K Wirewound Potentiometer

Part Overview

The Honeywell 62JA2K is a 2 kΩ, 2W wirewound linear potentiometer designed for panel mount applications with a 10-turn adjustment mechanism and solder lug termination. This component is classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional and mechanical compatibility for ongoing production and maintenance applications.

Substiute Parts

62JA2K

Honeywell Sensing and Productivity SolutionsIn Stock: 114362JA2K Datasheet

Current PartRFQ

3500S-2-202L

Bourns Inc.In Stock: 10123500S-2-202L Datasheet

SimilarRFQ

3540S-1-202L

Bourns Inc.In Stock: 11043540S-1-202L Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 62JA2K are identified based on strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 2 kΩ
• Power rating: 2W
• Number of turns: 10
• Taper characteristic: Linear
• Termination style: Solder Lug
• Mounting configuration: Panel Mount
• Bushing thread specification: 3/8-32
• Resistive material: Wirewound
• Full rotation: 3600°

Allowable Variations:

• Tolerance specification (±3% to ±5%)
• Temperature coefficient (±20ppm/°C to ±50ppm/°C)
• Actuator length (within mechanical envelope constraints)
• Actuator diameter (within functional tolerance)
• Body diameter (22.22mm to 22.23mm)
• Product status (Active substitutes for Obsolete)
• Packaging format (Bulk to Tray)
• Compliance certifications (RoHS, REACH)

The following parts meet all mandatory matching criteria and are qualified as direct substitutes:

1. Bourns 3500S-2-202L (Series 3500, Active status)
2. Bourns 3540S-1-202L (Series 3540, Active status)

Parameter Comparison

Engineering Selection Recommendations

Bourns 3500S-2-202L Selection Criteria:

The 3500S-2-202L is suitable for applications where tighter tolerance control is required. This part offers ±3% tolerance compared to the original ±5%, providing improved resistance accuracy. The part maintains active product status with ROHS3 compliance certification. Temperature coefficient specification of ±50ppm/°C represents a wider operating range than the original component. Bulk packaging format aligns with the original part specification.

Bourns 3540S-1-202L Selection Criteria:

The 3540S-1-202L maintains identical tolerance specification (±5%) to the original 62JA2K, ensuring equivalent resistance accuracy performance. This part is actively manufactured with ROHS3 compliance and REACH affected status documentation. Tray packaging format differs from the original bulk specification but does not affect functional performance. Temperature coefficient of ±50ppm/°C provides extended thermal stability range.

Compliance Considerations:

Both substitute parts meet current RoHS3 compliance requirements, exceeding the original RoHS Compliant status. Both parts carry EAR99 export classification and identical HTSUS commodity codes, maintaining regulatory consistency with the original component.

Frequently Asked Questions (FAQ)

Q: Can the Bourns 3500S-2-202L or 3540S-1-202L be used as direct replacements for the Honeywell 62JA2K?

A: Yes. Both Bourns parts meet all mandatory electrical and mechanical specifications: 2 kΩ resistance, 2W power rating, 10-turn linear wirewound construction, solder lug termination, 3/8-32 panel mount bushing thread, and 3600° rotation. Physical envelope dimensions are equivalent within manufacturing tolerance.

Q: What is the difference between the two Bourns substitute options?

A: The primary differences are tolerance specification and packaging format. The 3500S-2-202L offers ±3% tolerance (tighter than original ±5%) in bulk packaging. The 3540S-1-202L maintains ±5% tolerance matching the original specification and is supplied in tray packaging. Both have identical temperature coefficient (±50ppm/°C) and functional performance characteristics.

Q: Does the actuator length difference affect mechanical compatibility?

A: The original 62JA2K has actuator length of 0.937" (23.81mm), while both Bourns substitutes measure approximately 0.812-0.813" (20.63-20.64mm). This 3mm difference represents a shorter actuator profile. Panel mount applications must accommodate this dimensional variation. Verify that the shorter actuator length does not interfere with control panel geometry or user interface requirements in the specific application.

Q: Are there compliance or certification differences between the original and substitute parts?

A: The original 62JA2K carries RoHS Compliant certification. Both Bourns substitutes meet the more stringent ROHS3 Compliant standard, representing improved environmental compliance. The 3540S-1-202L additionally carries REACH Affected status documentation. All three parts share identical EAR99 export classification and HTSUS commodity code 8533.31.0000.

Q: What is the significance of the temperature coefficient difference?

A: The original 62JA2K specifies ±20ppm/°C temperature coefficient, while both Bourns substitutes specify ±50ppm/°C. This indicates the original component exhibits tighter resistance stability across temperature variations. For applications operating across wide temperature ranges or requiring high precision resistance stability, the original specification provides superior performance. For standard industrial applications, the ±50ppm/°C specification of the substitutes remains within acceptable operating parameters.

Q: Does packaging format (Bulk vs. Tray) affect component performance?

A: Packaging format does not affect electrical or mechanical performance. Bulk packaging (62JA2K and 3500S-2-202L) and tray packaging (3540S-1-202L) represent different supply and handling methods. Selection between packaging formats depends on procurement, inventory management, and assembly process requirements rather than functional compatibility.

Q: Can both Bourns parts be used interchangeably in the same application?

A: Yes, both Bourns parts are functionally interchangeable in applications where the tolerance and temperature coefficient specifications are acceptable. The ±3% tolerance of the 3500S-2-202L provides superior accuracy if required. The ±5% tolerance of the 3540S-1-202L matches the original specification. Selection should be based on specific application tolerance requirements and packaging logistics.