Bourns 3386X-1-503 Trimmer Potentiometer Equivalent & Substitute Parts

Part Overview

The Bourns 3386X-1-503 is a 50 kOhm, 0.5W through-hole trimmer potentiometer with PC pin termination and side adjustment capability. This sealed Trimpot® 3386 series component is designed for applications requiring precision variable resistance in compact form factors. The part is currently active in production. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and compliance requirements across different manufacturing and regulatory environments.

Substiute Parts

3386X-1-503

Bourns Inc.In Stock: 55423386X-1-503 Datasheet

Current PartRFQ

3386X-1-503LF

Bourns Inc.In Stock: 21003386X-1-503LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 3386X-1-503 is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must maintain identical specifications for resistance value, power rating, tolerance, temperature coefficient, number of turns, adjustment type, resistive material composition, mounting configuration, termination style, and physical dimensions. The 3386X-1-503LF meets all these criteria as a direct equivalent within the Trimpot® 3386 sealed series. The primary distinction between the main part and its substitute relates to RoHS compliance status and REACH regulatory classification, which do not affect electrical or mechanical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

The 3386X-1-503LF serves as a direct electrical and mechanical equivalent to the 3386X-1-503. Selection between these parts should be based on regulatory and compliance requirements applicable to the end application. The 3386X-1-503LF is ROHS3 compliant and REACH unaffected, making it suitable for applications subject to European Union environmental and chemical safety regulations. The 3386X-1-503 remains appropriate for applications where RoHS compliance is not mandated. Both parts share identical electrical performance characteristics, physical dimensions, and functional specifications. Inventory availability should also be considered in procurement decisions, as the 3386X-1-503 currently maintains higher stock levels (5530 pcs) compared to the 3386X-1-503LF (2000 pcs).

Frequently Asked Questions (FAQ)

Q: Are the 3386X-1-503 and 3386X-1-503LF electrically interchangeable?

A: Yes. Both parts are electrically identical with 50 kOhm resistance, 0.5W power rating, ±10% tolerance, and ±100ppm/°C temperature coefficient. They perform identically in circuit applications.

Q: What is the difference between these two part numbers?

A: The primary differences are regulatory compliance status. The 3386X-1-503LF is ROHS3 compliant and REACH unaffected, while the 3386X-1-503 is RoHS non-compliant and REACH affected. Electrical and mechanical specifications are identical.

Q: Can I use the 3386X-1-503LF as a replacement for the 3386X-1-503 in existing designs?

A: Yes, the 3386X-1-503LF is a direct substitute. Physical dimensions, mounting configuration, termination style, and all electrical parameters are identical. No design modifications are required.

Q: Which part should I select for new designs?

A: For new designs subject to EU regulations or customer requirements for RoHS and REACH compliance, specify the 3386X-1-503LF. For applications without such requirements, either part is suitable based on availability and cost considerations.

Q: Are there any packaging differences between these parts?

A: Both parts are supplied in tube packaging. No packaging differences exist between the 3386X-1-503 and 3386X-1-503LF.