Bourns 3500S-2-502 Wirewound Potentiometer Equivalent & Substitute Parts

Part Overview

The Bourns 3500S-2-502 is a 5kΩ 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 primary driver for substitution is the discontinued product status combined with RoHS non-compliance, which restricts use in regulated environments.

Substiute Parts

3500S-2-502

Bourns Inc.In Stock: 11493500S-2-502 Datasheet

Current PartRFQ

3500S-2-502L

Bourns Inc.In Stock: 9983500S-2-502L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3500S-2-502 is determined by strict equivalence across the following critical parameters:

• Resistance value: 5kΩ (exact match required)
• Power rating: 2W (exact match required)
• Taper characteristic: Linear (exact match required)
• Number of turns: 10 (exact match required)
• Resistive material: Wirewound (exact match required)
• Termination style: Solder Lug (exact match required)
• Mounting configuration: Panel Mount with 3/8-32 bushing thread (exact match required)
• Body form factor: Round 0.875" diameter (exact match required)

The Bourns 3500S-2-502L satisfies all substitution criteria as a direct equivalent within the 3500 series potentiometer family.

Parameter Comparison

Engineering Selection Recommendations

The 3500S-2-502L is the direct substitute for the obsolete 3500S-2-502. Selection of the 3500S-2-502L is based on the following factors:

• Identical electrical and mechanical specifications across all critical parameters
• Active product status ensures ongoing availability and supply chain continuity
• ROHS3 compliance satisfies regulatory requirements for new designs and regulated markets
• REACH affected status indicates compliance with European chemical regulations
• Bulk packaging availability supports production requirements

The transition from 3500S-2-502 to 3500S-2-502L requires no circuit redesign or mechanical modification, as all functional and dimensional parameters remain unchanged.

Frequently Asked Questions (FAQ)

Q: Can the 3500S-2-502L be used as a direct replacement for the 3500S-2-502?

A: Yes. The 3500S-2-502L is electrically and mechanically identical to the 3500S-2-502 across all specified parameters. No circuit or mechanical modifications are required.

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

A: The 3500S-2-502 is obsolete and RoHS non-compliant. The 3500S-2-502L is an active product with ROHS3 compliance and REACH affected status, making it suitable for current production and regulated applications.

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

A: The 3500S-2-502 packaging is unspecified. The 3500S-2-502L is supplied in bulk packaging. Verify packaging requirements for your procurement process.

Q: Do the potentiometers have identical mechanical mounting?

A: Yes. Both parts feature identical panel mount configuration with 3/8-32 bushing thread, 0.875" round body diameter, and slotted actuator dimensions.

Q: What compliance certifications apply to the substitute part?

A: The 3500S-2-502L is ROHS3 compliant and REACH affected. The original 3500S-2-502 is RoHS non-compliant and REACH unaffected.