Bourns 3386M-1-501 Equivalent & Substitute Parts

Part Overview

The Bourns 3386M-1-501 is a 500 Ohm, 0.5W through-hole trimmer potentiometer with PC pin termination, top adjustment, and cermet resistive material. This component is classified as Active product status. Equivalent and substitute parts become necessary when the primary part experiences supply constraints, packaging format requirements, or compliance specification changes in production environments.

Substiute Parts

3386M-1-501

Bourns Inc.In Stock: 12793386M-1-501 Datasheet

Current PartRFQ

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

Substitution eligibility for the 3386M-1-501 is determined by strict equivalence across the following 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 listed substitute parts meet these core electrical and functional requirements. Variations in physical dimensions, packaging format, and compliance certifications do not affect functional interchangeability within the specified parameter set.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts (25PR500LF, 72PR500LF, 82PR500LF) maintain full electrical and functional equivalence to the 3386M-1-501. Selection between substitutes should be based on compliance requirements and packaging specifications:

The 25PR500LF, 72PR500LF, and 82PR500LF are all RoHS Compliant or ROHS3 Compliant and REACH Unaffected, providing regulatory advantages over the primary part. The 3386M-1-501 is RoHS non-compliant and REACH Affected.

Packaging format differs: the 3386M-1-501 is supplied in Tube format, while 25PR500LF is supplied in Tube format and 72PR500LF and 82PR500LF are supplied in Bulk format. Physical dimensions vary by series: the 3386M-1-501 and 72PR500LF feature square 0.375" x 0.375" faces, the 25PR500LF features a square 0.270" x 0.270" face, and the 82PR500LF features a round 0.250" diameter form factor.

Frequently Asked Questions (FAQ)

Q: Are all listed substitute parts electrically equivalent to the 3386M-1-501?

A: Yes. All substitute parts meet the core electrical specifications: 500 Ohms resistance, 0.5W power rating, ±10% tolerance, ±100ppm/°C temperature coefficient, 1 turn, top adjustment, cermet material, through-hole mounting, and PC pin termination.

Q: What is the primary difference between the substitute parts?

A: The substitute parts differ in physical dimensions and packaging format. The 25PR500LF has a smaller square footprint (0.270" x 0.270"), the 72PR500LF matches the 3386M-1-501 square footprint (0.375" x 0.375"), and the 82PR500LF uses a round form factor (0.250" diameter). Packaging varies between Tube and Bulk formats.

Q: Can I use a substitute part with a different physical dimension in my circuit board design?

A: Physical dimension compatibility depends on your PCB layout and mechanical constraints. The 72PR500LF maintains the same square footprint as the 3386M-1-501. The 25PR500LF and 82PR500LF have different form factors and require layout verification.

Q: What are the compliance advantages of the substitute parts?

A: The 25PR500LF, 72PR500LF, and 82PR500LF are all RoHS Compliant or ROHS3 Compliant and REACH Unaffected, compared to the 3386M-1-501 which is RoHS non-compliant and REACH Affected. This provides regulatory compliance benefits for new designs and production environments with strict compliance requirements.

Q: Does packaging format affect electrical performance?

A: No. Tube and Bulk packaging formats do not affect electrical performance. Packaging selection is based on supply chain requirements, handling procedures, and inventory management practices.