Bourns 3366P-1-501 Trimmer Potentiometer - Equivalent & Substitute Parts

Part Overview

The Bourns 3366P-1-501 is a 500 Ohm, 0.5W through-hole trimmer potentiometer with cermet resistive material, top adjustment, and PC pin termination. This part is classified as obsolete. Due to its discontinued status, identifying functionally equivalent active alternatives is essential for design continuity and procurement planning.

Substiute Parts

3366P-1-501

Bourns Inc.In Stock: 11263366P-1-501 Datasheet

Current PartRFQ

3362P-1-501

Bourns Inc.In Stock: 43673362P-1-501 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 3366P-1-501 is determined by matching the following critical parameters:

• Resistance value: 500 Ohms
• Power rating: 0.5W (1/2W)
• Tolerance: ±10%
• Temperature coefficient: ±100ppm/°C
• Number of turns: 1 turn
• Adjustment type: Top adjustment
• Resistive material: Cermet
• Mounting type: Through hole
• Termination style: PC pins

The Bourns 3362P-1-501 meets all these electrical and mechanical criteria. It is the manufacturer-recommended substitute, offering identical functional specifications while maintaining active product status.

Parameter Comparison

Engineering Selection Recommendations

The 3366P-1-501 is obsolete and no longer in active production. The Bourns 3362P-1-501 is the manufacturer-recommended substitute and is currently in active production status. All electrical parameters—resistance, power rating, tolerance, temperature coefficient, and adjustment characteristics—are identical between the two parts.

The primary difference is physical form factor: the 3362P-1-501 has a rectangular face (0.275" x 0.260") compared to the square face (0.276" x 0.276") of the original part. This dimensional variation is minor and typically accommodated within standard PCB layout tolerances for through-hole trimmer potentiometers.

Selection of the 3362P-1-501 is appropriate for new designs and replacement applications where the obsolete 3366P-1-501 is no longer available.

Frequently Asked Questions (FAQ)

Q: Can the 3362P-1-501 be used as a direct replacement for the 3366P-1-501?

A: Yes. All electrical specifications match exactly: 500 Ohms, 0.5W power rating, ±10% tolerance, ±100ppm/°C temperature coefficient, 1-turn top adjustment, cermet material, through-hole mounting, and PC pin termination. The face dimensions differ slightly (rectangular vs. square), but this is within acceptable tolerance for through-hole component placement.

Q: What is the primary reason to substitute the 3366P-1-501?

A: The 3366P-1-501 is obsolete and no longer manufactured. The 3362P-1-501 is the active equivalent from the same manufacturer with identical electrical performance.

Q: Are there any compliance or certification differences between these parts?

A: The 3362P-1-501 is RoHS non-compliant and REACH affected. Compliance requirements should be verified against your application and regional regulations before final selection.

Q: Does the rectangular face dimension of the 3362P-1-501 affect PCB compatibility?

A: The dimensional difference (0.275" x 0.260" vs. 0.276" x 0.276") is minimal. Standard PCB footprints for through-hole trimmers accommodate this variation. Verify your specific PCB layout to confirm adequate clearance.

Q: What is the packaging difference between these parts?

A: The 3366P-1-501 packaging is not specified in available data. The 3362P-1-501 is supplied in tube packaging.