Equivalent & Substitute Parts for 3266W-1-203

Part Overview

The Bourns 3266W-1-203 is a 20 kOhm, 0.25W through-hole trimmer potentiometer with PC pin termination and top adjustment. This sealed Trimpot® 3266 series component is designed for applications requiring precision resistance adjustment in compact rectangular form factors. The part is currently active in production. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and compliance requirements across different manufacturing standards.

Substiute Parts

3266W-1-203

Bourns Inc.In Stock: 10163266W-1-203 Datasheet

Current PartRFQ

3266W-1-203LF

Bourns Inc.In Stock: 80383266W-1-203LF Datasheet

DirectRFQ

64WR20KLF

TT Electronics/BIIn Stock: 1588164WR20KLF Datasheet

SimilarRFQ

64YR20KLF

TT Electronics/BIIn Stock: 206964YR20KLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3266W-1-203 is determined by matching the following critical parameters:

• Resistance value: 20 kOhms
• Power rating: 0.25W (1/4W)
• Tolerance: ±10%
• Temperature coefficient: ±100ppm/°C
• Number of turns: 12
• Adjustment type: Top Adjustment
• Resistive material: Cermet
• Mounting type: Through Hole
• Termination style: PC Pins
• Physical form factor: Rectangular configuration

All identified substitutes meet these core electrical and mechanical requirements. Variations in physical dimensions (face size), RoHS compliance status, and manufacturer origin are noted but do not preclude functional equivalence within the specified parameter set.

Parameter Comparison

Engineering Selection Recommendations

3266W-1-203LF (Bourns Inc.): This part is the direct equivalent of the 3266W-1-203 within the Bourns Trimpot® 3266 series. The primary distinction is RoHS3 compliance status. Selection of the 3266W-1-203LF is appropriate for applications subject to RoHS directives or where REACH compliance is required. Inventory availability is significantly higher (7,958 pcs vs. 998 pcs).

64WR20KLF (TT Electronics/BI): This substitute from the TT Electronics 64 series meets all core electrical parameters. It offers RoHS compliance and REACH unaffected status. Physical face dimensions are marginally smaller (0.165" vs. 0.170" height). This part is suitable for applications where compliance certifications are prioritized and PCB layout accommodates the minor dimensional variation. Inventory is abundant (15,797 pcs).

64YR20KLF (TT Electronics/BI): This alternative from the TT Electronics 64 series also satisfies all electrical specifications with RoHS compliance and REACH unaffected status. Physical dimensions match the 64WR20KLF. Selection is appropriate where compliance requirements align with TT Electronics sourcing. Inventory availability is lower (2,000 pcs).

Frequently Asked Questions (FAQ)

Q: Can 3266W-1-203LF be used as a direct replacement for 3266W-1-203?

A: Yes. Both parts are from the Bourns Trimpot® 3266 series and share identical electrical specifications, tolerance, temperature coefficient, number of turns, adjustment type, resistive material, mounting configuration, and termination style. The primary difference is RoHS3 compliance status of the 3266W-1-203LF.

Q: What are the physical dimension differences between Bourns and TT Electronics parts?

A: The Bourns 3266W-1-203 and 3266W-1-203LF have a face dimension of 0.250" x 0.170" (6.35mm x 4.32mm). The TT Electronics 64WR20KLF and 64YR20KLF have a face dimension of 0.250" x 0.165" (6.35mm x 4.19mm). The height difference is 0.005" (0.13mm). PCB layout must accommodate this variation.

Q: Are there compliance differences between these substitutes?

A: Yes. The 3266W-1-203 is RoHS non-compliant and REACH Affected. The 3266W-1-203LF is ROHS3 Compliant and REACH Affected. The 64WR20KLF and 64YR20KLF are both RoHS Compliant and REACH Unaffected. Selection depends on regulatory requirements for the end application.

Q: Do all substitutes have the same electrical performance?

A: Yes. All four parts share identical resistance value (20 kOhms), power rating (0.25W), tolerance (±10%), temperature coefficient (±100ppm/°C), number of turns (12), adjustment type (top), resistive material (cermet), and termination configuration (PC pins through hole).

Q: Which substitute has the best inventory availability?

A: The 64WR20KLF from TT Electronics has the highest inventory level at 15,797 pcs. The 3266W-1-203LF has 7,958 pcs. The 64YR20KLF has 2,000 pcs. The original 3266W-1-203 has 998 pcs.

Q: Can I mix these parts in the same production batch?

A: All parts are functionally equivalent within the specified electrical and mechanical parameters. However, physical dimension variations (0.005" height difference) and compliance status differences should be evaluated against PCB layout constraints and regulatory requirements before mixing in production.