Bourns 3329P-1-101 Trimmer Potentiometer - Equivalent & Substitute Parts

Part Overview

The Bourns 3329P-1-101 is a 100 Ohm, 0.5W through-hole trimmer potentiometer with PC pin termination and top adjustment. This sealed Trimpot® 3329 series component is designed for applications requiring precision resistive adjustment in compact form factors. The part is currently active in production with 847 units in stock. Substitute parts are identified based on matching electrical specifications, mechanical compatibility, and termination style to ensure direct functional equivalence in circuit applications.

Substiute Parts

3329P-1-101

Bourns Inc.In Stock: 9343329P-1-101 Datasheet

Current PartRFQ

3329P-1-101LF

Bourns Inc.In Stock: 10083329P-1-101LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3329P-1-101 is determined by the following critical parameters:

• Electrical Specifications: Resistance value (100 Ohms), power rating (0.5W), tolerance (±10%), and temperature coefficient (±100ppm/°C) must match exactly
• Mechanical Compatibility: Number of turns (1 Turn), adjustment type (Top Adjustment), mounting type (Through Hole), and physical size (0.250" diameter) must be identical
• Termination & Material: PC pin termination style and Cermet resistive material must be preserved
• Series Compatibility: Parts must belong to the Trimpot® 3329 sealed series

The 3329P-1-101LF qualifies as a direct substitute because it maintains all electrical and mechanical parameters while offering improved RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both the 3329P-1-101 and 3329P-1-101LF are active production parts suitable for direct substitution. The primary distinction is regulatory compliance:

• 3329P-1-101: RoHS non-compliant. Use in applications where RoHS compliance is not required or where legacy component specifications are mandated.
• 3329P-1-101LF: ROHS3 compliant. Preferred for new designs, applications subject to RoHS regulations, or when component traceability and environmental compliance are specified requirements.

Both parts carry REACH Affected status and EAR99 export classification. Selection between these parts should be based on regulatory requirements of the end application and supply chain compliance mandates.

Frequently Asked Questions (FAQ)

Q: Can the 3329P-1-101LF replace the 3329P-1-101 in existing designs?

A: Yes. The 3329P-1-101LF is a direct functional equivalent with identical electrical and mechanical specifications. The only difference is improved RoHS compliance status, which does not affect circuit performance or physical compatibility.

Q: What does the "LF" suffix indicate in the part number?

A: The "LF" suffix indicates lead-free and RoHS3 compliance. This designation reflects the manufacturing process and material composition used to meet environmental regulations.

Q: Are there any physical or dimensional differences between these parts?

A: No. Both parts share identical physical dimensions (0.250" diameter round package), mounting type (through hole), and termination style (PC pins). They are mechanically interchangeable.

Q: What are the critical parameters for substitution?

A: Substitution requires matching: resistance value (100 Ohms), power rating (0.5W), tolerance (±10%), temperature coefficient (±100ppm/°C), number of turns (1), adjustment type (top), resistive material (Cermet), mounting type (through hole), termination style (PC pins), and physical size (0.250" diameter).

Q: Can I use these parts in applications requiring RoHS compliance?

A: Only the 3329P-1-101LF meets RoHS3 compliance requirements. The 3329P-1-101 is RoHS non-compliant and should not be used in applications with RoHS mandates.

Q: Are both parts available in the same packaging?

A: Yes. Both the 3329P-1-101 and 3329P-1-101LF are supplied in tube packaging, maintaining consistent handling and storage requirements.