3386T-1-504LF Trimmer Potentiometer Equivalent & Substitute Parts

Part Overview

The 3386T-1-504LF is a 500 kOhms, 0.5W through-hole trimmer potentiometer manufactured by Bourns Inc. as part of the Trimpot® 3386 sealed series. This component features cermet resistive material, top adjustment, and PC pin termination in a square 0.375" x 0.375" form factor. The part is Active status and ROHS3 compliant, making it suitable for applications requiring precision variable resistance in compact spaces. Equivalent substitute parts may be required due to inventory availability, lead time considerations, or procurement preferences while maintaining identical electrical and mechanical specifications.

Substiute Parts

3386T-1-504LF

Bourns Inc.In Stock: 12143386T-1-504LF Datasheet

Current PartRFQ

72PR500KLF

TT Electronics/BIIn Stock: 204372PR500KLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3386T-1-504LF is determined by strict equivalence across the following critical parameters:

• Resistance value: 500 kOhms (exact match required)
• Power rating: 0.5W / 1/2W (exact match required)
• Tolerance: ±10% (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Number of turns: 1 (exact match required)
• Adjustment type: Top Adjustment (exact match required)
• Resistive material: Cermet (exact match required)
• Mounting type: Through Hole (exact match required)
• Termination style: PC Pins (exact match required)
• Physical dimensions: Square - 0.375" x 0.375" / 9.53mm x 9.53mm (exact match required)
• Regulatory compliance: ROHS3 Compliant (exact match required)

The 72PR500KLF from TT Electronics/BI meets all substitution criteria and is classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

The 72PR500KLF is a direct functional and mechanical equivalent to the 3386T-1-504LF. Both components are Active status products with identical electrical specifications, physical dimensions, and regulatory compliance certifications. Selection between these parts may be based on procurement availability, packaging format (Tube vs. Bulk), or supplier preference, as all technical parameters are equivalent. Both parts satisfy ROHS3 compliance and REACH unaffected status requirements for regulated applications.

Frequently Asked Questions (FAQ)

Q: Can the 72PR500KLF be used as a direct replacement for the 3386T-1-504LF in existing designs?

A: Yes. The 72PR500KLF meets all electrical and mechanical specifications of the 3386T-1-504LF, including resistance value, power rating, tolerance, temperature coefficient, adjustment type, resistive material, mounting configuration, and physical dimensions. Both components are ROHS3 compliant and REACH unaffected.

Q: Are there differences in packaging between these parts?

A: The 3386T-1-504LF is supplied in Tube packaging, while the 72PR500KLF is supplied in Bulk packaging. This distinction affects handling and storage but does not impact electrical or mechanical performance.

Q: What are the critical parameters that must match for substitution?

A: Substitution requires exact equivalence in resistance value (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 (0.375" x 0.375" square form factor).

Q: Are both parts suitable for high-reliability applications?

A: Both the 3386T-1-504LF and 72PR500KLF are Active status components with identical regulatory compliance. Component selection for high-reliability applications should be based on specific application requirements and qualification standards beyond the parameters provided.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. Both components have identical through-hole PC pin termination and square 0.375" x 0.375" footprints, allowing direct PCB layout compatibility without modification.