Bourns 3262X-1-503 Trimmer Potentiometer: Equivalent & Substitute Parts

Part Overview

The Bourns 3262X-1-503 is a 50 kOhms, 0.25W through-hole trimmer potentiometer with PC pin termination and side adjustment. This sealed Trimpot® 3262 series component is designed for applications requiring precision resistance adjustment in compact rectangular form factors. The part is currently active in production. Substitute parts may be required due to inventory availability, lead time constraints, or specific compliance requirements such as RoHS status.

Substiute Parts

3262X-1-503

Bourns Inc.In Stock: 9173262X-1-503 Datasheet

Current PartRFQ

3262X-1-503LF

Bourns Inc.In Stock: 10173262X-1-503LF Datasheet

DirectRFQ

64XR50KLF

TT Electronics/BIIn Stock: 218064XR50KLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3262X-1-503 is determined by strict equivalence across the following critical parameters:

• Resistance value: 50 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
• Physical form factor: Rectangular configuration

Two substitute parts meet these criteria:

1. 3262X-1-503LF (Bourns Inc.) — Direct manufacturer equivalent with identical electrical and mechanical specifications. Differs only in RoHS compliance status (ROHS3 Compliant vs. RoHS non-compliant).

2. 64XR50KLF (TT Electronics/BI) — Cross-manufacturer equivalent from the 64 series. Maintains all critical electrical parameters and mechanical compatibility. Minor dimensional variation in face width (0.165" vs. 0.170") remains within acceptable tolerance for through-hole PC pin applications.

Parameter Comparison

Engineering Selection Recommendations

3262X-1-503LF is the preferred direct substitute when RoHS3 compliance is required. This part maintains identical electrical and mechanical specifications while providing enhanced environmental compliance. Both parts are manufactured by Bourns Inc. and belong to the same Trimpot® 3262 sealed series.

64XR50KLF serves as a cross-manufacturer alternative when supply constraints or compliance requirements favor TT Electronics/BI products. This part is RoHS Compliant and REACH Unaffected, offering broader regulatory flexibility. The 0.005" (0.13mm) reduction in face width does not affect PC pin through-hole mounting compatibility or electrical performance.

Selection between 3262X-1-503LF and 64XR50KLF depends on procurement priorities: manufacturer preference, RoHS/REACH compliance mandates, and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can 3262X-1-503LF be used as a direct replacement for 3262X-1-503?

A: Yes. Both parts are electrically and mechanically identical. The only difference is RoHS compliance status (ROHS3 Compliant vs. RoHS non-compliant). Selection depends on your product's regulatory requirements.

Q: Is 64XR50KLF compatible with the same PCB layout as 3262X-1-503?

A: Yes. The 64XR50KLF maintains identical PC pin termination, through-hole mounting type, and adjustment mechanism. The 0.005" face width difference does not affect board-level compatibility or component placement.

Q: What are the key parameters that determine substitution eligibility?

A: Resistance (50 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) must remain constant across all substitutes.

Q: Are there compliance differences between the three parts?

A: Yes. The 3262X-1-503 is RoHS non-compliant and REACH Affected. The 3262X-1-503LF is ROHS3 Compliant and REACH Affected. The 64XR50KLF is RoHS Compliant and REACH Unaffected. Select based on your application's regulatory requirements.

Q: Which part has the best inventory availability?

A: The 64XR50KLF has the highest stock level at 2100 pieces, followed by 3262X-1-503LF at 991 pieces, and 3262X-1-503 at 894 pieces.