Bourns 3352W-1-503 Thumbwheel Potentiometer Equivalent & Substitute Parts

Part Overview

The Bourns 3352W-1-503 is a 50 kOhms, 0.5W through-hole thumbwheel potentiometer with side adjustment, part of the Trimpot® 3352 Open Frame series. This component is currently active in production and widely used in applications requiring manual resistance adjustment through a thumbwheel interface. Finding equivalent or substitute parts may be necessary due to inventory availability, compliance requirements, or procurement lead times.

Substiute Parts

3352W-1-503

Bourns Inc.In Stock: 10043352W-1-503 Datasheet

Current PartRFQ

3352W-1-503LF

Bourns Inc.In Stock: 14123352W-1-503LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 3352W-1-503 is determined by strict equivalence across the following critical parameters:

• Resistance value: 50 kOhms
• Power rating: 0.5W (1/2W)
• Tolerance: ±20%
• Number of turns: 1
• Adjustment type: Side Adjustment
• Physical dimensions: Round - 0.350" Dia x 0.210" H (8.89mm x 5.33mm)
• Termination style: PC Pins
• Mounting configuration: Through Hole
• Series compatibility: Trimpot® 3352 - Open Frame

The 3352W-1-503LF meets all these criteria and qualifies as a direct substitute. The primary distinction between these parts is their RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both the 3352W-1-503 and 3352W-1-503LF are active production components from Bourns Inc. with identical electrical and mechanical specifications. Selection between these parts should be based on regulatory and compliance requirements:

• Use 3352W-1-503 in applications where RoHS non-compliant components are acceptable and no ROHS3 compliance mandate exists.
• Use 3352W-1-503LF in applications requiring ROHS3 compliance or where procurement specifications mandate lead-free termination.

Both parts are subject to REACH regulations. Moisture sensitivity level 1 indicates unlimited shelf life under standard storage conditions for both variants.

Frequently Asked Questions (FAQ)

Q: Are the 3352W-1-503 and 3352W-1-503LF electrically identical?

A: Yes. Both parts have identical resistance (50 kOhms), power rating (0.5W), tolerance (±20%), and all electrical performance parameters. The difference is in RoHS compliance status only.

Q: Can I substitute 3352W-1-503LF for 3352W-1-503 in existing designs?

A: Yes. The parts are mechanically and electrically equivalent with identical dimensions, termination, and mounting configuration. Substitution is valid from a functional standpoint.

Q: What does the "LF" suffix indicate?

A: The "LF" suffix indicates lead-free termination and ROHS3 compliance. This reflects the manufacturing process and material composition of the component leads and solder connections.

Q: Are there any inventory or availability differences?

A: Current inventory levels differ: 3352W-1-503 has 911 pcs in stock, while 3352W-1-503LF has 1395 pcs in stock. Availability may vary based on procurement timing and supplier stock levels.

Q: Do both parts have the same moisture sensitivity rating?

A: Yes. Both parts have Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly.

Q: What is the ECCN and HTSUS classification for these parts?

A: Both parts share identical classifications: ECCN EAR99 and HTSUS 8533.40.8050.