Bourns 3386P-1-501 Trimmer Potentiometer: Equivalent & Substitute Parts

Part Overview

The Bourns 3386P-1-501 is a 500 Ohm, 0.5W through-hole trimmer potentiometer with cermet resistive material, single-turn top adjustment, and PC pin termination. This component is classified as Active product status. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical compatibility, and functional performance within the allowed parameter tolerances for this trimmer potentiometer category.

Substiute Parts

3386P-1-501

Bourns Inc.In Stock: 16293386P-1-501 Datasheet

Current PartRFQ

3386P-1-501LF

Bourns Inc.In Stock: 44283386P-1-501LF Datasheet

DirectRFQ

25PR500LF

TT Electronics/BIIn Stock: 346425PR500LF Datasheet

SimilarRFQ

72PR500LF

TT Electronics/BIIn Stock: 127572PR500LF Datasheet

SimilarRFQ

82PR500LF

TT Electronics/BIIn Stock: 540482PR500LF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 3386P-1-501 are qualified based on the following critical parameters: resistance value (500 Ohms), power rating (0.5W), tolerance (±10%), temperature coefficient (±100ppm/°C), number of turns (1), adjustment type (top adjustment), resistive material (cermet), mounting type (through hole), and termination style (PC pins). All substitute parts listed maintain these core electrical and functional specifications. Mechanical dimensions and packaging formats may vary within the through-hole trimmer potentiometer category while preserving electrical equivalence.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain electrical equivalence to the 3386P-1-501 across resistance, power rating, tolerance, temperature coefficient, and functional characteristics. The 3386P-1-501LF is a direct Bourns equivalent with ROHS3 compliance, offering the same series designation (Trimpot® 3386 - Sealed) and identical mechanical footprint. The TT Electronics/BI alternatives (25PR500LF, 72PR500LF, 82PR500LF) provide functional equivalence with RoHS or ROHS3 compliance status. Selection between substitute parts should account for mechanical dimensions, packaging format (tube versus bulk), and compliance requirements specific to the application.

Frequently Asked Questions (FAQ)

Q: What makes these parts electrically equivalent to the 3386P-1-501? A: All substitute parts share the same resistance value (500 Ohms), power rating (0.5W), tolerance (±10%), temperature coefficient (±100ppm/°C), number of turns (1), adjustment type (top adjustment), resistive material (cermet), mounting type (through hole), and termination style (PC pins). These parameters define functional equivalence for trimmer potentiometer applications.

Q: Are there mechanical differences between the main part and substitutes? A: Yes. The 3386P-1-501 and 72PR500LF feature a square 0.375" x 0.375" face (9.53mm x 9.53mm). The 25PR500LF has a smaller square 0.270" x 0.270" face (6.86mm x 6.86mm). The 82PR500LF has a round 0.250" diameter (6.35mm) form factor. These dimensional differences may affect PCB layout compatibility.

Q: What is the difference between tube and bulk packaging? A: The 3386P-1-501, 3386P-1-501LF, and 25PR500LF are supplied in tube packaging. The 72PR500LF and 82PR500LF are supplied in bulk packaging. Packaging format does not affect electrical performance but may influence handling, storage, and procurement workflows.

Q: Which substitute offers the best RoHS compliance? A: The 3386P-1-501LF, 72PR500LF, and 82PR500LF all carry ROHS3 compliance. The 25PR500LF carries RoHS compliance. The original 3386P-1-501 is RoHS non-compliant. Selection depends on regulatory requirements for the end application.

Q: Can I use 25PR500LF as a direct replacement if space is limited? A: The 25PR500LF has a smaller mechanical footprint (0.270" x 0.270" square face) compared to the 3386P-1-501 (0.375" x 0.375" square face). It is electrically equivalent but requires PCB layout verification to confirm mechanical compatibility with mounting holes and surrounding components.