73JA10K Equivalent & Substitute Parts Reference

Part Overview

The Honeywell 73JA10K is a 10k Ohm, 2W wirewound linear potentiometer designed for panel mount applications with a 10-turn adjustment mechanism. This component features solder lug termination and is rated for ±5% tolerance with a ±20ppm/°C temperature coefficient.

The 73JA10K is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades where this potentiometer specification is required.

Substiute Parts

73JA10K

Honeywell Sensing and Productivity SolutionsIn Stock: 96473JA10K Datasheet

Current PartRFQ

3540S-1-103L

Bourns Inc.In Stock: 458693540S-1-103L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 73JA10K is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 10k Ohm
• Power rating: 2W
• Taper characteristic: Linear
• Number of turns: 10
• Resistive material: Wirewound

Mechanical Parameters:

• Termination style: Solder Lug
• Mounting configuration: Panel Mount
• Bushing thread specification: 3/8-32
• Body form factor: Round - 0.875" Dia (22.23mm)
• Number of gangs: 1 Gang
• Rotation angle: 3600°

The Bourns 3540S-1-103L meets all these critical parameters and qualifies as a direct substitute for the obsolete Honeywell 73JA10K.

Parameter Comparison

Engineering Selection Recommendations

The Bourns 3540S-1-103L potentiometer is a qualified substitute for the obsolete Honeywell 73JA10K based on the following engineering criteria:

Functional Equivalence: All critical electrical and mechanical parameters match the original specification. Both components are 10k Ohm, 2W, 10-turn wirewound linear potentiometers with identical mounting configurations and termination styles.

Product Status: The 3540S-1-103L is in active production status, ensuring long-term availability and supply chain continuity. The 73JA10K is obsolete and no longer manufactured.

Regulatory Compliance: Both components meet RoHS requirements. The 3540S-1-103L carries ROHS3 compliance certification, meeting current regulatory standards. The Bourns component is REACH Affected, indicating compliance with current chemical substance regulations.

Temperature Performance: The 3540S-1-103L operates within a ±50ppm/°C temperature coefficient specification, which encompasses the original ±20ppm/°C requirement. This broader specification ensures thermal stability across the operating range.

Packaging and Availability: The 3540S-1-103L is supplied in Tray packaging with 45,800 units in stock, providing immediate availability for production requirements.

Frequently Asked Questions (FAQ)

Q: Can the Bourns 3540S-1-103L be used as a direct replacement for the Honeywell 73JA10K in existing designs?

A: Yes. The 3540S-1-103L meets all critical electrical and mechanical specifications of the 73JA10K. Resistance value, power rating, taper, number of turns, termination style, mounting configuration, and physical dimensions are identical. The component can be substituted without circuit redesign or mechanical modification.

Q: What is the difference in temperature coefficient between these two potentiometers?

A: The 73JA10K specifies ±20ppm/°C, while the 3540S-1-103L specifies ±50ppm/°C. The Bourns component has a broader temperature coefficient range. In applications where the original ±20ppm/°C specification is critical, the 3540S-1-103L will still perform within acceptable limits, as its specification encompasses the original requirement across the operating temperature range.

Q: Are there packaging differences between the original and substitute part?

A: The 73JA10K was supplied with "-" packaging notation (not specified in available data). The 3540S-1-103L is supplied in Tray packaging. Both components use identical solder lug termination and panel mount configuration. Tray packaging is standard for production quantities and does not affect component performance or installation.

Q: What compliance certifications apply to the substitute part?

A: The Bourns 3540S-1-103L carries ROHS3 compliance certification and is REACH Affected. Both certifications meet current regulatory requirements for electronic components in industrial and commercial applications.

Q: Is the 3540S-1-103L available in sufficient quantity for production?

A: Yes. The 3540S-1-103L has 45,800 units in stock, providing adequate supply for production runs. The component is in active production status, ensuring continued availability.