3266P-1-502 Trimmer Potentiometer Equivalent & Substitute Parts

Part Overview

The Bourns 3266P-1-502 is a 5 kOhm, 0.25W through-hole trimmer potentiometer with PC pin termination and side adjustment. This sealed Trimpot® 3266 series component is actively manufactured and widely used in precision circuit tuning applications. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical compatibility, and functional performance within the allowed parameter tolerances for this product category.

Substiute Parts

3266P-1-502

Bourns Inc.In Stock: 9063266P-1-502 Datasheet

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3262P-1-502LF

Bourns Inc.In Stock: 10083262P-1-502LF Datasheet

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64PR5KLF

TT Electronics/BIIn Stock: 181264PR5KLF Datasheet

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64XR5KLF

TT Electronics/BIIn Stock: 874764XR5KLF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 3266P-1-502 are qualified based on the following electrical and mechanical parameters:

Electrical Matching Criteria:

• Resistance value: 5 kOhms (exact match required)
• Power rating: 0.25W, 1/4W (exact match required)
• Tolerance: ±10% (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Number of turns: 12 (exact match required)

Mechanical Matching Criteria:

• Adjustment type: Side Adjustment (exact match required)
• Resistive material: Cermet (exact match required)
• Mounting type: Through Hole (exact match required)
• Termination style: PC Pins (exact match required)
• Packaging: Tube (exact match required)

Allowable Variations:

• Face dimensions: Minor variations permitted within standard manufacturing tolerances
• Manufacturer: Different manufacturers acceptable if all electrical and mechanical parameters match
• Series designation: Different series acceptable (3262, 64 series) if core parameters align

All three substitute parts meet these criteria and are functionally equivalent to the 3266P-1-502.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are electrically and mechanically equivalent to the 3266P-1-502 and meet the core functional requirements for 5 kOhm, 0.25W trimmer potentiometer applications.

Bourns 3262P-1-502LF: This part maintains Bourns manufacturer continuity and is ROHS3 compliant, addressing RoHS requirements where the original 3266P-1-502 does not. It remains REACH Affected. Face dimensions vary slightly (0.250" x 0.185" versus 0.250" x 0.174"), which may require PCB layout verification for space-constrained applications.

TT Electronics/BI 64PR5KLF: This part offers RoHS compliance and REACH Unaffected status, providing regulatory advantages for applications with strict environmental requirements. The square face dimension (0.250" x 0.250") represents the largest footprint among the substitutes and requires confirmation of available PCB space.

TT Electronics/BI 64XR5KLF: This part provides RoHS compliance and REACH Unaffected status with the highest inventory availability (8684 pcs). The rectangular face dimension (0.250" x 0.165") is the most compact option and closely matches the original 3266P-1-502 footprint (0.250" x 0.174"), minimizing PCB layout modifications.

Selection should prioritize regulatory compliance requirements, PCB space constraints, and inventory availability for your specific application.

Frequently Asked Questions (FAQ)

Q: Can the 3262P-1-502LF directly replace the 3266P-1-502 in existing designs?

A: Yes. Both parts share identical electrical specifications (5 kOhms, 0.25W, ±10% tolerance, ±100ppm/°C, 12 turns) and mechanical characteristics (side adjustment, cermet material, through-hole PC pins). The face dimension difference (0.250" x 0.185" versus 0.250" x 0.174") is minor and typically accommodated within standard PCB tolerances. Verify available PCB space before implementation.

Q: What are the key differences between the Bourns and TT Electronics/BI substitutes?

A: The primary differences are manufacturer, RoHS compliance status, REACH classification, and face dimensions. Bourns 3262P-1-502LF is ROHS3 compliant but REACH Affected. TT Electronics/BI 64PR5KLF and 64XR5KLF are both RoHS compliant and REACH Unaffected. All three are electrically identical to the original 3266P-1-502.

Q: Are there any PCB layout considerations when substituting these parts?

A: Face dimensions vary among the substitutes. The 64PR5KLF has the largest footprint (0.250" x 0.250" square), while the 64XR5KLF is the most compact (0.250" x 0.165" rectangular). Verify that the selected substitute fits within the available PCB space designated for the original 3266P-1-502 (0.250" x 0.174").

Q: Which substitute offers the best regulatory compliance?

A: The TT Electronics/BI 64PR5KLF and 64XR5KLF both provide RoHS compliance and REACH Unaffected status, making them suitable for applications with strict environmental regulations. The Bourns 3262P-1-502LF is ROHS3 compliant but remains REACH Affected.

Q: Can I use these substitutes interchangeably in production?

A: Yes, provided that PCB layout accommodates the face dimension variations and regulatory compliance requirements are met. All three substitutes are functionally equivalent and meet the electrical and mechanical specifications required for 5 kOhm, 0.25W trimmer potentiometer applications.