Equivalent & Substitute Parts for 3386T-1-502

Part Overview

The Bourns 3386T-1-502 is a 5 kOhm, 0.5W through-hole trimmer potentiometer with PC pin termination and top adjustment. This Trimpot® 3386 series component features cermet resistive material, ±10% tolerance, and ±100ppm/°C temperature coefficient. The part is currently active in production with 1053 units in stock. Substitute parts are identified based on matching electrical specifications and compatible mechanical configurations for direct circuit board replacement.

Substiute Parts

3386T-1-502

Bourns Inc.In Stock: 11203386T-1-502 Datasheet

Current PartRFQ

25PR5KLF

TT Electronics/BIIn Stock: 941625PR5KLF Datasheet

SimilarRFQ

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 3386T-1-502 are qualified based on the following critical parameters: 5 kOhm resistance value, 0.5W power rating, ±10% tolerance, ±100ppm/°C temperature coefficient, 1-turn adjustment, cermet resistive material, through-hole mounting, and PC pin termination. Substitutes are grouped into two categories:

Category A - Top Adjustment, Square Form Factor (9.53mm x 9.53mm): Parts 72PMR5KLF and 72PR5KLF maintain identical adjustment type and footprint dimensions to the main part.

Category B - Alternative Form Factors: Part 25PR5KLF uses a smaller square form factor (6.86mm x 6.86mm) with top adjustment. Part 82PR5KLF uses a round form factor (0.250" diameter) with top adjustment. Part M63P502KB40 uses a larger square form factor (10.03mm x 10.03mm) with side adjustment instead of top adjustment.

All substitute parts match the core electrical specifications: 5 kOhm resistance, 0.5W power, ±10% tolerance, ±100ppm/°C temperature coefficient, 1-turn operation, cermet material, through-hole mounting, and PC pin termination.

Parameter Comparison

Engineering Selection Recommendations

Direct Footprint Replacement (Recommended for PCB Layout Compatibility): Parts 72PMR5KLF and 72PR5KLF provide identical square form factor (9.53mm x 9.53mm) and top adjustment orientation. Both are ROHS3 compliant with higher inventory availability than the main part.

Compliance Upgrade: All substitute parts except the main 3386T-1-502 are RoHS compliant. Parts 72PMR5KLF, 72PR5KLF, 82PR5KLF, and M63P502KB40 are ROHS3 compliant. Part 25PR5KLF is RoHS compliant.

Space-Constrained Applications: Part 25PR5KLF offers a smaller footprint (6.86mm x 6.86mm) while maintaining top adjustment and all electrical specifications. This part is RoHS compliant.

Alternative Form Factor: Part 82PR5KLF provides a round form factor (6.35mm diameter) with top adjustment and ROHS3 compliance for applications where circular geometry is preferred.

Side Adjustment Configuration: Part M63P502KB40 differs in adjustment type (side adjustment instead of top adjustment) and uses a larger square form factor (10.03mm x 10.03mm). This part is suitable only for designs where side adjustment access is acceptable.

Frequently Asked Questions (FAQ)

Q: Can I use 25PR5KLF as a direct replacement for 3386T-1-502? A: Yes, electrically and functionally. The 25PR5KLF matches all electrical specifications and maintains top adjustment. The primary difference is the smaller footprint (6.86mm x 6.86mm versus 9.53mm x 9.53mm). PCB layout verification is required to confirm the smaller size is compatible with your circuit board hole spacing and component placement.

Q: What is the difference between 72PMR5KLF and 72PR5KLF? A: Both parts are identical in electrical specifications, form factor (9.53mm x 9.53mm square), and adjustment type (top). The difference is packaging: 72PMR5KLF is supplied in bulk, while 72PR5KLF is also supplied in bulk. Both are ROHS3 compliant.

Q: Why does M63P502KB40 have side adjustment instead of top adjustment? A: M63P502KB40 is from the Vishay Spectrol 63 series, which uses side adjustment as its standard design. While all electrical parameters match the 3386T-1-502, the adjustment orientation differs. This part is suitable only for designs where side-mounted adjustment access is acceptable and the larger form factor (10.03mm x 10.03mm) fits the PCB layout.

Q: Are all substitute parts RoHS compliant? A: No. The main part 3386T-1-502 is RoHS non-compliant. All substitute parts are RoHS compliant: 25PR5KLF is RoHS compliant, while 72PMR5KLF, 72PR5KLF, 82PR5KLF, and M63P502KB40 are ROHS3 compliant.

Q: Which substitute has the highest inventory availability? A: Part 25PR5KLF has the highest inventory with 9327 units in stock, followed by 72PMR5KLF with 4800 units.

Q: Can I use 82PR5KLF if my PCB is designed for a square footprint? A: No. The 82PR5KLF uses a round form factor (0.250" diameter / 6.35mm) instead of the square 9.53mm x 9.53mm footprint. PCB hole patterns and component placement are not compatible without layout redesign.