3386U-1-504ALF Equivalent & Substitute Parts

Part Overview

The 3386U-1-504ALF is a 500 kOhm trimmer potentiometer manufactured by Bourns Inc. as part of the Trimpot® 3386 sealed series. This through-hole component features PC pin termination, cermet resistive material, and 0.5W power rating with top adjustment capability. The part is currently active in production and ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters are required for component procurement, inventory management, or design flexibility.

Substiute Parts

3386U-1-504ALF

Bourns Inc.In Stock: 8553386U-1-504ALF Datasheet

Current PartRFQ

72PR500KLF

TT Electronics/BIIn Stock: 204372PR500KLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The 72PR500KLF from TT Electronics/BI qualifies as a direct substitute for the 3386U-1-504ALF based on the following critical parameters:

• Resistance value: 500 kOhms (identical)
• Power rating: 0.5W (identical)
• Tolerance: ±10% (identical)
• Temperature coefficient: ±100ppm/°C (identical)
• Number of turns: 1 (identical)
• Adjustment type: Top Adjustment (identical)
• Resistive material: Cermet (identical)
• Mounting type: Through Hole (identical)
• Termination style: PC Pins (identical)
• Physical dimensions: Square - 0.375" x 0.375" (9.53mm x 9.53mm) (identical)
• Regulatory compliance: ROHS3 Compliant (identical)

All electrical and mechanical parameters match the original part specification, confirming functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Both the 3386U-1-504ALF and 72PR500KLF are active production components with identical electrical specifications and mechanical form factors. Selection between these parts may be based on:

• Availability and lead time requirements
• Packaging format preference (Tape & Box versus Bulk)
• Supplier inventory levels
• Cost considerations
• Established supply chain relationships

Both parts meet ROHS3 compliance and REACH requirements, confirming suitability for regulated applications. The identical electrical parameters, tolerance, temperature coefficient, and physical dimensions ensure direct functional interchangeability in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can the 72PR500KLF replace the 3386U-1-504ALF in existing designs?

A: Yes. Both parts share identical resistance, power rating, tolerance, temperature coefficient, number of turns, adjustment type, resistive material, mounting type, termination style, and physical dimensions. Direct substitution is supported.

Q: Are there differences in packaging between these parts?

A: The 3386U-1-504ALF is supplied in Tape & Box (TB) packaging, while the 72PR500KLF is supplied in Bulk packaging. This affects handling and storage but does not impact electrical or mechanical performance.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the 3386U-1-504ALF and 72PR500KLF are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS code 8533.40.8050.

Q: What are the critical parameters for substitution?

A: Substitution is valid when resistance (500 kOhms), power rating (0.5W), tolerance (±10%), temperature coefficient (±100ppm/°C), number of turns (1), adjustment type (Top Adjustment), resistive material (Cermet), mounting type (Through Hole), termination style (PC Pins), and physical dimensions (9.53mm x 9.53mm square) remain constant.

Q: Are there any inventory considerations?

A: The 3386U-1-504ALF has 747 pieces in stock, while the 72PR500KLF has 1969 pieces available. Inventory levels may influence procurement decisions based on project timelines.