3386F-1-504T Equivalent & Substitute Parts

Part Overview

The Bourns 3386F-1-504T is a 500 kOhms trimmer potentiometer rated at 0.5W with PC pin termination for through-hole mounting. This sealed Trimpot® 3386 series component features cermet resistive material, top finger adjustment, and a square 0.375" x 0.375" footprint. The part is currently active in production with 988 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the allowed parameter set.

Substiute Parts

3386F-1-504T

Bourns Inc.In Stock: 10113386F-1-504T Datasheet

Current PartRFQ

M63M504KB30T607

Vishay SpectrolIn Stock: 997M63M504KB30T607 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3386F-1-504T is determined by matching the following critical parameters: resistance value (500 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). The Vishay Spectrol M63M504KB30T607 meets all these core electrical and mechanical requirements. Variations in adjustment type (top finger versus side adjustment) and footprint dimensions within acceptable tolerance ranges do not preclude substitution when circuit board layout permits the dimensional difference.

Parameter Comparison

Engineering Selection Recommendations

Both the Bourns 3386F-1-504T and Vishay Spectrol M63M504KB30T607 are active production components with identical core electrical specifications. The Vishay part offers ROHS3 compliance, which may be required for applications subject to RoHS regulations. The 3386F-1-504T remains suitable for applications where RoHS non-compliance is acceptable. The dimensional difference of approximately 0.02" (0.5mm) in footprint must be evaluated against circuit board layout constraints. The adjustment mechanism difference (top finger versus side adjustment) affects operator accessibility and should be considered based on application requirements.

Frequently Asked Questions (FAQ)

Q: Can the Vishay M63M504KB30T607 directly replace the Bourns 3386F-1-504T in all applications?

A: Direct replacement is possible when circuit board layout accommodates the 0.02" larger footprint and when the side adjustment mechanism is compatible with the application's adjustment requirements. All electrical specifications are equivalent.

Q: What is the significance of the RoHS compliance difference?

A: The Vishay part is ROHS3 compliant while the Bourns part is RoHS non-compliant. Applications subject to RoHS regulations must use the Vishay substitute. Applications without RoHS requirements may use either part.

Q: How do the adjustment types differ functionally?

A: The Bourns 3386F-1-504T uses top finger adjustment, allowing vertical access to the adjustment screw. The Vishay M63M504KB30T607 uses side adjustment, requiring horizontal access. Both provide single-turn adjustment with identical electrical performance.

Q: Are there packaging differences between these parts?

A: The Bourns part is supplied in tube packaging while the Vishay part is supplied in box packaging. This affects handling and storage but does not impact electrical or mechanical performance.

Q: What is the Moisture Sensitivity Level difference?

A: The Bourns part lists MSL as Not Applicable, while the Vishay part is rated MSL 1 (Unlimited). This indicates the Vishay part has no moisture sensitivity restrictions during storage and handling.