Bourns 3540S-1-502 Wirewound Potentiometer Equivalent & Substitute Parts

Part Overview

The Bourns 3540S-1-502 is a 5k Ohm, 2W wirewound linear potentiometer designed for panel mount applications with a 10-turn adjustment mechanism. This component features a slotted actuator, solder lug termination, and 3600° rotation capability, making it suitable for precision control applications requiring stable resistive characteristics.

The 3540S-1-502 carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for legacy systems utilizing this component.

Substiute Parts

3540S-1-502

Bourns Inc.In Stock: 11803540S-1-502 Datasheet

Current PartRFQ

3540S-1-502L

Bourns Inc.In Stock: 26103540S-1-502L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3540S-1-502 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must match the following criteria:

• Resistance value: 5k Ohm
• Power rating: 2W
• Tolerance: ±5%
• Number of turns: 10
• Taper characteristic: Linear
• Resistive material: Wirewound
• Termination: Solder Lug
• Mounting configuration: Panel Mount
• Temperature coefficient: ±50ppm/°C
• Rotation angle: 3600°
• Bushing thread specification: 3/8-32
• Body diameter: 0.875" (22.23mm)

The 3540S-1-502L qualifies as a direct substitute based on complete parameter alignment across all electrical and mechanical specifications. The primary distinction lies in product status and regulatory compliance posture.

Parameter Comparison

Engineering Selection Recommendations

The 3540S-1-502L is the direct functional equivalent of the 3540S-1-502. All electrical and mechanical parameters are identical, ensuring drop-in compatibility in circuit designs and mechanical assemblies.

The 3540S-1-502L carries Active product status, providing assured long-term availability and supply chain continuity compared to the Obsolete 3540S-1-502. This status transition supports ongoing procurement for new production runs and field replacements.

The 3540S-1-502L meets ROHS3 compliance requirements, whereas the 3540S-1-502 is RoHS non-compliant. For applications subject to RoHS regulatory frameworks or customer specifications mandating RoHS compliance, the 3540S-1-502L is the required selection.

The 3540S-1-502L is REACH Affected, indicating regulatory substance tracking requirements. The 3540S-1-502 is REACH Unaffected. Applications operating under REACH regulatory scope should utilize the 3540S-1-502L to maintain compliance documentation.

Packaging differs between the two parts: the 3540S-1-502 is supplied in bulk format, while the 3540S-1-502L is supplied in tray packaging. Tray packaging provides improved component protection and handling efficiency in automated assembly environments.

Frequently Asked Questions (FAQ)

Q: Can the 3540S-1-502L be used as a direct replacement for the 3540S-1-502 in existing designs?

A: Yes. All electrical and mechanical parameters are identical. The 3540S-1-502L provides complete functional equivalence and requires no circuit or mechanical design modifications.

Q: What is the significance of the product status difference between these parts?

A: The 3540S-1-502 is Obsolete, indicating discontinued manufacturing and limited future availability. The 3540S-1-502L is Active, ensuring ongoing production and reliable supply chain access for current and future procurement needs.

Q: Does the RoHS compliance difference affect component performance?

A: RoHS compliance relates to material composition and regulatory adherence, not electrical performance. Both parts deliver identical electrical characteristics. RoHS compliance becomes a selection criterion only when regulatory requirements or customer specifications mandate it.

Q: What packaging considerations apply to these parts?

A: The 3540S-1-502 uses bulk packaging; the 3540S-1-502L uses tray packaging. Tray packaging provides superior component protection during storage and handling, and integrates more efficiently with automated assembly processes. Manual assembly applications can utilize either packaging format.

Q: Are there any temperature or environmental performance differences?

A: No. Both parts share identical temperature coefficient specifications (±50ppm/°C) and mechanical construction. Environmental performance characteristics are equivalent.

Q: What does REACH Affected status mean for the 3540S-1-502L?

A: REACH Affected indicates the component contains substances tracked under REACH regulatory requirements. Compliance documentation and substance declarations are maintained by the manufacturer. Applications operating under REACH regulatory scope should use the 3540S-1-502L to ensure proper regulatory alignment.