Bourns 3262W-1-105 Trimmer Potentiometer Equivalent & Substitute Parts

Part Overview

The Bourns 3262W-1-105 is a 1 MOhm, 0.25W through-hole trimmer potentiometer with PC pin termination and top adjustment. This sealed Trimpot® 3262 series component is designed for precision resistance adjustment in electronic circuits requiring 12-turn cermet trimmer functionality. The part is currently active in production. Substitute parts may be required due to inventory availability, RoHS compliance requirements, or specific application certifications.

Substiute Parts

3262W-1-105

Bourns Inc.In Stock: 7583262W-1-105 Datasheet

Current PartRFQ

3262W-1-105LF

Bourns Inc.In Stock: 11483262W-1-105LF Datasheet

DirectRFQ

64WR1MEGLF

TT Electronics/BIIn Stock: 347364WR1MEGLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3262W-1-105 is determined by strict equivalence across the following parameters: resistance value (1 MOhms), power rating (0.25W), tolerance (±10%), temperature coefficient (±100ppm/°C), number of turns (12), adjustment type (top adjustment), resistive material (cermet), mounting type (through hole), and termination style (PC pins).

Two substitute parts meet these electrical and mechanical criteria:

Direct Manufacturer Substitute: 3262W-1-105LF (Bourns Inc.) — identical electrical specifications and same series, with RoHS3 compliance.

Cross-Manufacturer Substitute: 64WR1MEGLF (TT Electronics/BI) — equivalent electrical specifications and mechanical form factor, with minor dimensional tolerance variation (0.165" vs 0.170" height) and RoHS compliance.

Parameter Comparison

Engineering Selection Recommendations

3262W-1-105LF (Bourns Inc.) is the direct equivalent substitute. This part maintains identical electrical and mechanical specifications while providing ROHS3 compliance. Selection of this part is appropriate for applications requiring RoHS-compliant components or when Bourns series continuity is specified.

64WR1MEGLF (TT Electronics/BI) is a cross-manufacturer substitute with equivalent electrical performance. This part offers RoHS compliance and REACH unaffected status. The face dimension differs by 0.005" in height (0.165" vs 0.170"), which may affect fit in space-constrained PCB layouts. This part is suitable for applications where cross-manufacturer sourcing is acceptable and compliance certifications are prioritized.

The original 3262W-1-105 remains valid for applications where RoHS non-compliance is acceptable and REACH-affected status is permissible.

Frequently Asked Questions (FAQ)

Q: Can 3262W-1-105LF be used as a direct replacement for 3262W-1-105?

A: Yes. Both parts are manufactured by Bourns Inc., belong to the Trimpot® 3262 series, and share identical electrical specifications (1 MOhm, 0.25W, ±10% tolerance, ±100ppm/°C, 12 turns) and mechanical form factor (0.250" x 0.170" face, PC pins, top adjustment, through-hole mounting). The primary difference is RoHS3 compliance status of the LF variant.

Q: What is the significance of the 0.005" dimensional difference in the 64WR1MEGLF?

A: The 64WR1MEGLF has a face height of 0.165" compared to 0.170" for the 3262W-1-105. This 0.005" reduction may impact PCB layout clearance in applications with tight vertical spacing constraints. Verify PCB footprint and component placement before substitution.

Q: Are there compliance differences between the three parts?

A: Yes. The 3262W-1-105 is RoHS non-compliant and REACH-affected. The 3262W-1-105LF is ROHS3 compliant and REACH-affected. The 64WR1MEGLF is RoHS compliant and REACH unaffected. Select based on application compliance requirements.

Q: Can 64WR1MEGLF be used in applications originally designed for 3262W-1-105?

A: Electrical substitution is valid due to identical resistance, power rating, tolerance, temperature coefficient, and turn count. Mechanical compatibility requires verification of the 0.005" height difference and cross-manufacturer sourcing acceptance. Confirm with design documentation before implementation.

Q: What is the difference between REACH-affected and REACH-unaffected status?

A: REACH-affected parts are subject to EU REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulations. REACH-unaffected parts are not subject to these restrictions. Selection depends on end-market regulatory requirements.