Bourns 3329P-1-504 Trimmer Potentiometer - Equivalent & Substitute Parts

Part Overview

The Bourns 3329P-1-504 is a 500 kOhm, 0.5W through-hole trimmer potentiometer with PC pin termination and top adjustment. This sealed Trimpot® 3329 series component is designed for applications requiring precision resistance adjustment in compact form factors. The part is currently active in production with 648 units in stock. Substitute parts are identified to address specific compliance requirements or inventory availability while maintaining identical electrical and mechanical specifications.

Substiute Parts

3329P-1-504

Bourns Inc.In Stock: 7323329P-1-504 Datasheet

Current PartRFQ

3329P-1-504LF

Bourns Inc.In Stock: 9203329P-1-504LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 3329P-1-504LF is a direct substitute for the 3329P-1-504. Substitution is valid based on the following criteria:

Matching Parameters:

• Identical resistance value: 500 kOhms
• Identical power rating: 0.5W (1/2W)
• 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 size: Round - 0.250" Dia (6.35mm)
• Identical series: Trimpot® 3329 - Sealed
• Identical packaging: Tube

The primary distinction between these parts is RoHS compliance status, with the 3329P-1-504LF meeting ROHS3 compliance requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the 3329P-1-504 and 3329P-1-504LF are active production parts with identical electrical and mechanical specifications. Selection between these parts should be based on compliance requirements:

• 3329P-1-504LF is the preferred choice for applications requiring RoHS3 compliance. This variant meets current regulatory standards for restricted substances in electrical and electronic equipment.

• 3329P-1-504 remains suitable for applications where RoHS compliance is not mandated. Both parts are REACH Affected and carry identical ECCN and HTSUS classifications.

Both parts maintain the same functional performance, physical footprint, and electrical characteristics. Interchangeability is complete from an electrical and mechanical standpoint.

Frequently Asked Questions (FAQ)

Q: Can the 3329P-1-504LF be used as a direct replacement for the 3329P-1-504?

A: Yes. The 3329P-1-504LF is a direct substitute with identical electrical specifications (500 kOhms, 0.5W, ±10% tolerance, ±100ppm/°C temperature coefficient), mechanical configuration (through-hole PC pins, top adjustment, 1 turn), and physical dimensions (0.250" diameter). The primary difference is RoHS3 compliance status.

Q: What is the significance of the "LF" suffix in the 3329P-1-504LF part number?

A: The "LF" designation indicates lead-free construction and RoHS3 compliance. This variant meets regulatory requirements for restricted hazardous substances in electrical and electronic equipment.

Q: Are there any performance differences between these two parts?

A: No. Both parts share identical resistance value, power rating, tolerance, temperature coefficient, number of turns, adjustment type, resistive material (Cermet), mounting type, termination style, and physical dimensions. Performance in circuit operation is equivalent.

Q: Which part should be selected for new designs?

A: The 3329P-1-504LF is recommended for new designs due to its RoHS3 compliance status, which aligns with current regulatory standards and supply chain requirements.

Q: Are both parts available in the same packaging?

A: Yes. Both the 3329P-1-504 and 3329P-1-504LF are supplied in tube packaging.