Bourns 3266X-1-102 Trimmer Potentiometer: Equivalent & Substitute Parts

Part Overview

The Bourns 3266X-1-102 is a 1 kOhm, 0.25W through-hole trimmer potentiometer with PC pin termination and side adjustment. This sealed Trimpot® 3266 series component is actively manufactured and maintained in stock. Substitute parts may be required due to supply constraints, end-of-life considerations, or specific compliance requirements for new designs.

Substiute Parts

3266X-1-102

Bourns Inc.In Stock: 11353266X-1-102 Datasheet

Current PartRFQ

3266X-1-102LF

Bourns Inc.In Stock: 14543266X-1-102LF Datasheet

DirectRFQ

64PR1KLF

TT Electronics/BIIn Stock: 213364PR1KLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by matching the following critical parameters:

• Resistance value: 1 kOhms
• Power rating: 0.25W (1/4W)
• Tolerance: ±10%
• Temperature coefficient: ±100ppm/°C
• Number of turns: 12
• Adjustment type: Side Adjustment
• Resistive material: Cermet
• Mounting type: Through Hole
• Termination style: PC Pins

Two substitute parts meet these electrical and mechanical criteria:

1. 3266X-1-102LF (Bourns Inc.) — Direct manufacturer variant with identical electrical specifications and RoHS3 compliance upgrade
2. 64PR1KLF (TT Electronics/BI) — Cross-manufacturer equivalent with matching electrical parameters and RoHS compliance

Parameter Comparison

Engineering Selection Recommendations

3266X-1-102LF is the preferred direct substitute when RoHS3 compliance is required. This Bourns variant maintains identical electrical and mechanical specifications while upgrading regulatory compliance status. It is suitable for designs requiring modern environmental standards without circuit redesign.

64PR1KLF is a cross-manufacturer alternative when supply from Bourns is unavailable. All electrical parameters match the original specification. The primary design consideration is the face dimension difference: the 64PR1KLF uses a square 0.250" x 0.250" footprint compared to the rectangular 0.250" x 0.170" footprint of the 3266X series. PCB layout verification is necessary to confirm mechanical fit. The 64PR1KLF offers REACH Unaffected status, which may simplify compliance documentation for certain applications.

Frequently Asked Questions (FAQ)

Q: Can 3266X-1-102LF be used as a direct drop-in replacement for 3266X-1-102?

A: Yes. The 3266X-1-102LF maintains identical electrical specifications, tolerance, temperature coefficient, number of turns, and physical footprint. The primary difference is RoHS3 compliance status. No circuit modifications are required.

Q: What is the main design consideration when substituting 64PR1KLF?

A: The 64PR1KLF has a square face dimension (0.250" x 0.250") versus the rectangular dimension (0.250" x 0.170") of the 3266X-1-102. PCB layout must be verified to confirm the component fits within the allocated space and does not interfere with adjacent components.

Q: Are all three parts electrically interchangeable?

A: Yes. All three parts share identical resistance (1 kOhms), power rating (0.25W), tolerance (±10%), temperature coefficient (±100ppm/°C), number of turns (12), adjustment type (side adjustment), resistive material (cermet), mounting type (through hole), and termination style (PC pins).

Q: Which substitute should be selected for new designs?

A: For new designs, 3266X-1-102LF is recommended due to RoHS3 compliance alignment with current manufacturing standards. If supply constraints exist, 64PR1KLF is acceptable provided PCB layout accommodates the square footprint.

Q: Does the MSL (Moisture Sensitivity Level) differ between parts?

A: The 3266X-1-102 and 3266X-1-102LF both have MSL listed as Not Applicable. The 64PR1KLF has MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.