Bourns 3386Y-1-102 Equivalent & Substitute Parts

Part Overview

The Bourns 3386Y-1-102 is a 1 kOhm, 0.5W through-hole trimmer potentiometer with PC pin termination and top adjustment. This sealed Trimpot® 3386 series component is actively produced and suitable for applications requiring precision resistance adjustment in compact form factors. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical compatibility, and termination standards to support component sourcing flexibility and supply chain continuity.

Substiute Parts

3386Y-1-102

Bourns Inc.In Stock: 7033386Y-1-102 Datasheet

Current PartRFQ

25PR1KLF

TT Electronics/BIIn Stock: 1231025PR1KLF Datasheet

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72PMR1KLF

TT Electronics/BIIn Stock: 204472PMR1KLF Datasheet

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72PR1KLF

TT Electronics/BIIn Stock: 200572PR1KLF Datasheet

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82PR1KLF

TT Electronics/BIIn Stock: 290082PR1KLF Datasheet

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M63P102KB40

Vishay SpectrolIn Stock: 1152M63P102KB40 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 3386Y-1-102 are qualified based on the following critical parameters: resistance value (1 kOhms), power rating (0.5W), tolerance (±10%), temperature coefficient (±100ppm/°C), number of turns (1), resistive material (Cermet), mounting type (through hole), and termination style (PC pins).

Substitutes are grouped into two categories:

Category A: Top Adjustment, Square Form Factor (Direct Mechanical Equivalents) Parts 25PR1KLF, 72PMR1KLF, and 72PR1KLF maintain top adjustment and square face geometry compatible with the 3386Y-1-102 footprint requirements. These parts differ in physical dimensions and packaging format but preserve electrical and functional equivalence.

Category B: Alternative Adjustment Type (Functional Equivalent with Design Consideration) Part M63P102KB40 provides electrical equivalence but features side adjustment instead of top adjustment. This part requires circuit board layout modification and is suitable only when adjustment accessibility from the side is acceptable.

Parameter Comparison

Engineering Selection Recommendations

For direct mechanical and electrical substitution: Parts 72PMR1KLF and 72PR1KLF are preferred substitutes. Both maintain identical face geometry (0.375" x 0.375"), top adjustment configuration, and electrical specifications as the 3386Y-1-102. Both parts carry ROHS3 compliance status and are actively produced.

For space-constrained applications: Part 25PR1KLF offers a smaller footprint (0.270" x 0.270" face) while maintaining all electrical parameters and top adjustment. This part is RoHS Compliant and suitable when board space is limited. Verify that the reduced physical dimensions do not conflict with circuit board layout requirements.

For alternative geometry: Part 82PR1KLF provides round form factor (0.250" diameter) with identical electrical specifications and top adjustment. This part is ROHS3 Compliant and suitable for applications where circular mounting is preferred.

For side-adjustment applications only: Part M63P102KB40 is electrically equivalent but requires circuit board redesign due to side adjustment configuration. This part is ROHS3 Compliant with MSL 1 rating and is suitable only when adjustment accessibility from the side is acceptable and board layout permits.

Frequently Asked Questions (FAQ)

Q: Can the 25PR1KLF replace the 3386Y-1-102 in existing designs? A: The 25PR1KLF is electrically equivalent but has a smaller face dimension (0.270" vs 0.375"). Substitution is possible only if the circuit board layout accommodates the reduced footprint and if mechanical mounting clearances are verified.

Q: What is the primary difference between 72PMR1KLF and 72PR1KLF? A: Both parts are electrically and mechanically identical with matching 0.375" x 0.375" square geometry and top adjustment. The difference is packaging format: 72PMR1KLF is supplied in Bulk, while 72PR1KLF is also supplied in Bulk. Both are ROHS3 Compliant.

Q: Why is M63P102KB40 listed as a substitute if it has side adjustment? A: M63P102KB40 matches all electrical specifications (1 kOhm, 0.5W, ±10% tolerance, ±100ppm/°C) and termination style (PC pins through hole). However, the side adjustment configuration requires circuit board layout modification. This part is suitable only for new designs or redesigns where side adjustment is acceptable.

Q: Are all substitute parts RoHS compliant? A: The 3386Y-1-102 is RoHS non-compliant. All listed substitutes (25PR1KLF, 72PMR1KLF, 72PR1KLF, 82PR1KLF, M63P102KB40) are RoHS Compliant or ROHS3 Compliant. If RoHS compliance is required for your application, any of these substitutes are suitable.

Q: What is the inventory availability for each substitute? A: Current stock levels are: 25PR1KLF (12,299 pcs), 72PMR1KLF (2,034 pcs), 72PR1KLF (1,900 pcs), 82PR1KLF (2,806 pcs), M63P102KB40 (1,070 pcs). Verify current availability with your supplier before design commitment.

Q: Can the 82PR1KLF be used as a direct replacement? A: The 82PR1KLF is electrically equivalent but has round geometry (0.250" diameter) instead of square. Substitution requires verification that the circular mounting footprint is compatible with existing circuit board hole patterns and mechanical mounting provisions.