Bourns 3366P-1-500 Equivalent & Substitute Parts

Part Overview

The Bourns 3366P-1-500 is a 50 Ohm, 0.5W trimmer potentiometer with PC pin termination, designed for through-hole mounting applications requiring top adjustment. This component features a cermet resistive element with 1 turn adjustment and ±10% tolerance. The 3366P-1-500 is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements.

Substiute Parts

3366P-1-500

Bourns Inc.In Stock: 8393366P-1-500 Datasheet

Current PartRFQ

3362P-1-500

Bourns Inc.In Stock: 14583362P-1-500 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 3366P-1-500 is determined by strict equivalence across the following critical parameters:

• Resistance value: 50 Ohms
• Power rating: 0.5W (1/2W)
• 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

The Bourns 3362P-1-500 satisfies all substitution criteria. While dimensional differences exist between the square face of the 3366P (7.00mm x 7.00mm) and the rectangular face of the 3362P (6.99mm x 6.60mm), both parts maintain electrical equivalence and are compatible with standard through-hole PCB layouts designed for 0.5W cermet trimmers with PC pin termination.

Parameter Comparison

Engineering Selection Recommendations

The 3362P-1-500 is the direct active equivalent for the obsolete 3366P-1-500. Selection of the 3362P-1-500 is based on:

• Identical electrical specifications across all critical parameters
• Active product status ensuring ongoing availability and supply chain continuity
• Sealed design of the 3362 series providing enhanced environmental protection
• Tube packaging suitable for automated assembly processes
• Compliance with EAR99 export classification and HTSUS 8533.40.8050 tariff code

For applications where the original 3366P-1-500 was specified, the 3362P-1-500 provides direct functional replacement without circuit redesign or performance degradation.

Frequently Asked Questions (FAQ)

Q: Can the 3362P-1-500 be used as a direct replacement for the 3366P-1-500?

A: Yes. Both parts share identical electrical specifications: 50 Ohms, 0.5W power rating, ±10% tolerance, ±100ppm/°C temperature coefficient, 1 turn, top adjustment, cermet resistive element, through-hole mounting, and PC pin termination. The 3362P-1-500 is the active equivalent.

Q: What are the dimensional differences between these parts?

A: The 3366P-1-500 features a square face measuring 0.276" x 0.276" (7.00mm x 7.00mm). The 3362P-1-500 features a rectangular face measuring 0.275" x 0.260" (6.99mm x 6.60mm). Both dimensions are compatible with standard through-hole PCB layouts for 0.5W trimmers.

Q: Are there any compliance differences between the 3366P-1-500 and 3362P-1-500?

A: The 3362P-1-500 is classified as RoHS non-compliant and REACH Affected. Both parts share the same ECCN (EAR99) and HTSUS code (8533.40.8050). Compliance requirements should be evaluated based on end-application and regional regulations.

Q: What packaging is available for the substitute part?

A: The 3362P-1-500 is supplied in tube packaging, suitable for both manual and automated assembly processes.

Q: Why is the 3366P-1-500 obsolete?

A: The 3366 series has been superseded by the 3362 series (Trimpot® 3362 - Sealed), which offers improved environmental sealing and maintains electrical equivalence across all critical parameters.