Honeywell 73JB2K Equivalent & Substitute Parts

Part Overview

The Honeywell 73JB2K is a 2 kilohm, 2-watt 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 parts for ongoing production and maintenance applications. The 73JB2K series has been superseded by functionally compatible alternatives from active manufacturers while maintaining identical electrical and mechanical specifications.

Substiute Parts

73JB2K

Honeywell Sensing and Productivity SolutionsIn Stock: 101973JB2K Datasheet

Current PartRFQ

534B1202JC

Vishay SpectrolIn Stock: 1280534B1202JC Datasheet

DirectRFQ

3590S-1-202L

Bourns Inc.In Stock: 12423590S-1-202L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Honeywell 73JB2K is determined by strict equivalence across the following critical parameters: resistance value (2 kΩ), power dissipation capability (2 W), taper characteristic (linear), number of adjustment turns (10), tolerance band (±5%), mounting configuration (panel mount), termination method (solder lug), and mechanical interface specifications (3/8-32 bushing thread, 0.875" round body diameter).

The identified substitute parts—Vishay Spectrol 534B1202JC and Bourns 3590S-1-202L—satisfy all mandatory electrical and mechanical requirements. Both substitutes are manufactured by active suppliers with current production status, ensuring long-term component availability. Mechanical dimensions including actuator length, diameter, and bushing thread specifications remain within acceptable tolerances across all three parts.

Parameter Comparison

Engineering Selection Recommendations

Vishay Spectrol 534B1202JC is the primary direct substitute for the Honeywell 73JB2K. This part maintains active production status with ROHS3 compliance certification. The temperature coefficient specification (20 ppm/°C) aligns closely with the original component (±20 ppm/°C), ensuring thermal stability characteristics remain consistent. Mechanical dimensions are equivalent within manufacturing tolerances. Current inventory availability (1247 pieces) supports immediate procurement requirements.

Bourns 3590S-1-202L functions as a secondary equivalent option. This component is manufactured by an active supplier with ROHS3 compliance and REACH affected status. The temperature coefficient specification (±50 ppm/°C) represents a wider tolerance band compared to the original part, which may impact thermal performance in precision applications requiring tighter temperature stability. Mechanical compatibility is confirmed across all critical dimensions. Inventory availability (1184 pieces) supports standard procurement timelines.

Both substitute parts are suitable for direct replacement in applications where the Honeywell 73JB2K is currently specified, provided that the temperature coefficient variation in the Bourns option does not conflict with circuit design requirements.

Frequently Asked Questions (FAQ)

Q: Can the Vishay Spectrol 534B1202JC directly replace the Honeywell 73JB2K without circuit modification?

A: Yes. The 534B1202JC maintains electrical equivalence (2 kΩ, 2 W, ±5% tolerance, linear taper, 10 turns) and mechanical compatibility (panel mount, 3/8-32 bushing, solder lug termination, 0.875" body diameter). Temperature coefficient performance (20 ppm/°C) is comparable to the original specification (±20 ppm/°C).

Q: What is the primary difference between the Vishay and Bourns substitute options?

A: The Bourns 3590S-1-202L specifies a temperature coefficient of ±50 ppm/°C, which is wider than both the original Honeywell part (±20 ppm/°C) and the Vishay substitute (20 ppm/°C). This difference affects thermal stability performance. All other electrical and mechanical parameters are equivalent across both substitutes.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both the Vishay Spectrol 534B1202JC and Bourns 3590S-1-202L carry ROHS3 compliance certification, meeting current environmental regulatory requirements.

Q: What is the significance of the Bourns part being REACH affected?

A: REACH affected status indicates the component is subject to European chemical substance regulations. This designation does not prevent use but requires compliance verification within supply chain documentation for applications destined for European markets.

Q: Are the mechanical dimensions identical across all three parts?

A: Mechanical dimensions are equivalent within standard manufacturing tolerances. Actuator length, diameter, bushing thread (3/8-32), and body diameter (0.875") are specified identically. Minor variations in actuator diameter (0.250" to 0.2497" to 0.248") fall within acceptable mechanical tolerances for panel mount applications.

Q: Can I use either substitute interchangeably in existing designs?

A: Yes, for applications where temperature coefficient tolerance of ±50 ppm/°C is acceptable. For designs requiring tighter thermal stability (±20 ppm/°C or better), the Vishay Spectrol 534B1202JC is the preferred selection.