3386G-1-502 Trimmer Potentiometer Equivalent & Substitute Parts

Part Overview

The Bourns 3386G-1-502 is a 5 kOhm, 0.5W through-hole trimmer potentiometer with PC pin termination and top adjustment. This sealed Trimpot® 3386 series component is actively manufactured and widely used in precision circuit tuning applications. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical compatibility, and functional performance within the allowed parameter tolerances for this product category.

Substiute Parts

3386G-1-502

Bourns Inc.In Stock: 11583386G-1-502 Datasheet

Current PartRFQ

25PR5KLF

TT Electronics/BIIn Stock: 941625PR5KLF Datasheet

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72PMR5KLF

TT Electronics/BIIn Stock: 487072PMR5KLF Datasheet

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72PR5KLF

TT Electronics/BIIn Stock: 190172PR5KLF Datasheet

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82PR5KLF

TT Electronics/BIIn Stock: 268882PR5KLF Datasheet

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M63P502KB40

Vishay SpectrolIn Stock: 1053M63P502KB40 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 3386G-1-502 are qualified based on the following electrical and mechanical parameters:

Primary Matching Criteria:

• Resistance value: 5 kOhms
• Power rating: 0.5W (1/2W)
• Tolerance: ±10%
• Temperature coefficient: ±100ppm/°C
• Number of turns: 1
• Resistive material: Cermet
• Mounting type: Through Hole
• Termination style: PC Pins

Secondary Compatibility Factors:

• Adjustment type (Top or Side)
• Physical size and form factor
• Packaging format (Tube or Bulk)
• Product status (Active)

All identified substitutes meet the core electrical specifications. Variations in adjustment type, physical dimensions, and packaging are noted to support design flexibility and supply chain alternatives.

Parameter Comparison

Engineering Selection Recommendations

Direct Electrical Equivalents (Top Adjustment): The 72PR5KLF and 72PMR5KLF from TT Electronics/BI provide identical electrical performance and physical dimensions to the 3386G-1-502. Both are ROHS3 compliant and available in bulk packaging. The 72PR5KLF offers the closest form factor match with equivalent 9.53mm square footprint.

Compact Alternative (Top Adjustment): The 25PR5KLF from TT Electronics/BI matches all electrical specifications with a smaller 6.86mm square footprint. This option is RoHS compliant and suitable for space-constrained applications where the reduced size is acceptable.

Alternative Form Factor (Top Adjustment): The 82PR5KLF from TT Electronics/BI provides identical electrical specifications in a round 6.35mm diameter package. This option is ROHS3 compliant and available in bulk, offering a different mechanical footprint for applications requiring circular geometry.

Side Adjustment Option: The M63P502KB40 from Vishay Spectrol matches all electrical specifications but features side adjustment instead of top adjustment. This part is ROHS3 compliant and suitable only for applications where side-mounted adjustment access is acceptable. Physical dimensions are 10.03mm square.

Compliance Considerations: All substitute parts except the original 3386G-1-502 are RoHS compliant. Selection should account for regulatory requirements and supply chain availability. The 72PR5KLF and 72PMR5KLF offer the most direct replacement path with matching dimensions and ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can the 25PR5KLF replace the 3386G-1-502 in a PCB layout? A: The 25PR5KLF has identical electrical specifications and top adjustment orientation but a smaller 6.86mm square footprint compared to the 3386G-1-502's 9.53mm square size. PCB layout compatibility depends on available space and mounting hole positioning. Verify mechanical fit before substitution.

Q: What is the difference between 72PR5KLF and 72PMR5KLF? A: Both parts are electrically and mechanically identical with matching 9.53mm square dimensions and top adjustment. The primary difference is packaging: 72PR5KLF is supplied in bulk, while 72PMR5KLF is also bulk. Both are ROHS3 compliant alternatives to the original Bourns part.

Q: Why would I select the 82PR5KLF over the 72PR5KLF? A: The 82PR5KLF offers the same electrical performance but in a round 6.35mm diameter package instead of square. Selection depends on PCB layout requirements and mechanical space constraints. Both are ROHS3 compliant and available in bulk.

Q: Is the M63P502KB40 a direct replacement? A: The M63P502KB40 matches all electrical specifications but features side adjustment instead of top adjustment. It is suitable only for applications where the adjustment mechanism can be accessed from the side. Physical dimensions are also larger at 10.03mm square.

Q: What are the RoHS compliance differences? A: The original 3386G-1-502 is RoHS non-compliant. All substitute parts (25PR5KLF, 72PR5KLF, 72PMR5KLF, 82PR5KLF, and M63P502KB40) are RoHS compliant, with most meeting ROHS3 standards. Selection should align with product regulatory requirements.

Q: Are there packaging differences between substitutes? A: Yes. The 3386G-1-502 and 25PR5KLF are supplied in tube packaging. The 72PR5KLF, 72PMR5KLF, 82PR5KLF, and M63P502KB40 are supplied in bulk packaging. Packaging selection may affect handling, storage, and cost considerations.