Equivalent & Substitute Parts for 3386M-1-104LF

Part Overview

The Bourns 3386M-1-104LF is a 100 kOhm, 0.5W through-hole trimmer potentiometer with top adjustment, PC pin termination, and cermet resistive material. This component is part of the Trimpot® 3386 sealed series and maintains active product status. Substitute parts are identified based on matching electrical specifications, mechanical compatibility, and functional equivalence within the through-hole trimmer potentiometer category.

Substiute Parts

3386M-1-104LF

Bourns Inc.In Stock: 11453386M-1-104LF Datasheet

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3386F-1-104LF

Bourns Inc.In Stock: 18633386F-1-104LF Datasheet

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25PR100KLF

TT Electronics / BI TechnologiesIn Stock: 282525PR100KLF Datasheet

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72PMR100KLF

TT Electronics/BIIn Stock: 79672PMR100KLF Datasheet

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M63P104KB40

Vishay SpectrolIn Stock: 1002M63P104KB40 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

• Electrical Match: Resistance value (100 kOhms), power rating (0.5W), tolerance (±10%), and temperature coefficient (±100ppm/°C) must be identical
• Functional Match: Number of turns (1 turn), resistive material (cermet), and termination style (PC pins) must be identical
• Mechanical Compatibility: Mounting type (through hole) and face dimensions must accommodate PCB layout requirements
• Adjustment Type Consideration: Top adjustment is the primary specification; side adjustment variants are listed but require mechanical layout verification

The following parts meet the core electrical and functional criteria:

• 3386F-1-104LF (Bourns): Identical specifications with alternative base product number within the same series
• 25PR100KLF (TT Electronics/BI Technologies): Meets all electrical parameters; smaller face dimension (0.270" vs 0.375") requires PCB layout verification
• 72PMR100KLF (TT Electronics/BI): Meets all electrical parameters; identical face dimension to main part
• M63P104KB40 (Vishay Spectrol): Meets all electrical parameters; side adjustment type and slightly larger face dimension (0.395") require mechanical verification

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (No Layout Modification Required)

• 3386F-1-104LF: Identical electrical and mechanical specifications within the same Bourns Trimpot® 3386 series. ROHS3 compliant. Recommended for direct replacement with no design changes.
• 72PMR100KLF: Identical face dimension and electrical specifications. ROHS3 compliant. Suitable for direct PCB substitution.

Conditional Substitutes (Layout Verification Required)

• 25PR100KLF: Smaller face dimension (0.270" vs 0.375") requires verification that PCB footprint and mounting hole spacing accommodate this component. RoHS compliant. Verify mechanical fit before implementation.
• M63P104KB40: Side adjustment type differs from top adjustment specification. Larger face dimension (0.395" vs 0.375") and MSL rating of 1 require mechanical layout and assembly process verification. ROHS3 compliant. Suitable only if adjustment access and mounting space permit side-mounted configuration.

All substitute parts maintain active product status and meet regulatory compliance requirements (RoHS, REACH, EAR99).

Frequently Asked Questions (FAQ)

Q: Can 3386F-1-104LF replace 3386M-1-104LF without any modifications?

A: Yes. Both parts share identical electrical specifications (100 kOhms, 0.5W, ±10% tolerance, ±100ppm/°C), mechanical dimensions (0.375" x 0.375" face), and adjustment type (top). Both are ROHS3 compliant and active products within the Bourns Trimpot® 3386 series.

Q: What is the primary difference between the 25PR100KLF and the main part?

A: The 25PR100KLF has a smaller face dimension (0.270" x 0.270" versus 0.375" x 0.375"). All electrical parameters are identical. PCB layout must be verified to confirm the smaller footprint is compatible with existing mounting hole spacing and clearance requirements.

Q: Why is the M63P104KB40 listed as a substitute if it has side adjustment instead of top adjustment?

A: The M63P104KB40 meets all electrical specifications and core functional parameters (100 kOhms, 0.5W, cermet, 1 turn, PC pins, through hole). However, the adjustment type differs (side versus top). This part is listed as a conditional substitute only if the PCB design and assembly process can accommodate side-mounted adjustment access and the slightly larger face dimension (0.395" x 0.395").

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitutes are RoHS compliant. The main part and most substitutes are ROHS3 compliant. The 25PR100KLF is RoHS compliant. All parts are REACH unaffected and classified as EAR99.

Q: What packaging options are available for these parts?

A: The 3386M-1-104LF and 3386F-1-104LF are supplied in tube packaging. The 25PR100KLF is supplied in tube packaging. The 72PMR100KLF and M63P104KB40 are supplied in bulk packaging. Verify packaging requirements for your procurement and assembly processes.

Q: Can I use these parts interchangeably in high-temperature applications?

A: All parts share the same temperature coefficient (±100ppm/°C). Temperature performance is equivalent across all listed substitutes. Verify that the operating temperature range of your application falls within the specified limits for the selected component.