Bourns 3500S-2-103 Wirewound Potentiometer Equivalent & Substitute Parts

Part Overview

The Bourns 3500S-2-103 is a 10k Ohm, 2W wirewound linear potentiometer designed for panel mount applications with a 10-turn adjustment mechanism. This component is classified as obsolete, making identification of suitable substitutes essential for ongoing production and maintenance applications. The availability of active equivalent parts ensures design continuity and supply chain reliability.

Substiute Parts

3500S-2-103

Bourns Inc.In Stock: 9553500S-2-103 Datasheet

Current PartRFQ

3500S-2-103L

Bourns Inc.In Stock: 7653500S-2-103L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 3500S-2-103L qualifies as a direct substitute based on identical electrical and mechanical parameters. Substitution is valid when the following criteria are met:

• Resistance value: 10k Ohm (exact match)
• Power rating: 2W (exact match)
• Taper characteristic: Linear (exact match)
• Number of turns: 10 (exact match)
• Resistive material: Wirewound (exact match)
• Termination: Solder Lug (exact match)
• Mounting configuration: Panel Mount (exact match)
• Tolerance: ±3% (exact match)
• Temperature coefficient: ±50ppm/°C (exact match)
• Physical dimensions: Round body 0.875" Dia, 0.813" actuator length, 0.249" actuator diameter (exact match)
• Bushing thread: 3/8-32 (exact match)

The primary distinction between the main part and substitute is product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The 3500S-2-103L is the direct functional equivalent of the 3500S-2-103. All electrical and mechanical parameters are identical, ensuring drop-in compatibility in existing circuit designs and mechanical assemblies.

For new designs or production requiring regulatory compliance, the 3500S-2-103L is the appropriate selection due to its active product status and ROHS3 compliance. The 3500S-2-103 is obsolete and should not be specified for new applications.

For legacy system maintenance where the original 3500S-2-103 is no longer available, the 3500S-2-103L provides complete functional equivalence with improved regulatory standing.

Frequently Asked Questions (FAQ)

Q: Can the 3500S-2-103L be used as a direct replacement for the 3500S-2-103?

A: Yes. All electrical specifications, mechanical dimensions, and performance characteristics are identical. The 3500S-2-103L is a direct substitute with no circuit or mechanical modifications required.

Q: What is the difference between these two part numbers?

A: The 3500S-2-103 is obsolete, while the 3500S-2-103L is an active product. The 3500S-2-103L meets ROHS3 compliance standards and is REACH Affected, whereas the original part is RoHS non-compliant and REACH Unaffected. Functionally and mechanically, they are identical.

Q: Are there any compatibility concerns with panel mount applications?

A: No. Both parts feature identical panel mount specifications, including the 3/8-32 bushing thread, 0.875" round body diameter, and slotted actuator configuration. Installation procedures and mechanical interfaces are identical.

Q: Does the packaging difference affect component performance?

A: No. Packaging format (standard versus bulk) does not affect electrical or mechanical performance. The difference is administrative and relates only to order quantity and delivery format.

Q: Which part should be specified for new designs?

A: The 3500S-2-103L should be specified for all new designs. It is an active product with current regulatory compliance certifications, ensuring long-term availability and supply chain support.