Bourns 3329X-1-502 Trimmer Potentiometer - Equivalent & Substitute Parts

Part Overview

The Bourns 3329X-1-502 is a 5 kOhm, 0.5W through-hole trimmer potentiometer with PC pin termination and side adjustment capability. 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. Substitute parts may be required due to packaging preferences, compliance requirements, or inventory availability while maintaining identical electrical and mechanical specifications.

Substiute Parts

3329X-1-502

Bourns Inc.In Stock: 8903329X-1-502 Datasheet

Current PartRFQ

3329X-1-502LF

Bourns Inc.In Stock: 12013329X-1-502LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 3329X-1-502LF is a direct substitute for the 3329X-1-502 based on the following substitution criteria:

Electrical Parameters (Identical):

• Resistance: 5 kOhms
• Power Rating: 0.5W (1/2W)
• Tolerance: ±10%
• Temperature Coefficient: ±100ppm/°C
• Number of Turns: 1 Turn

Mechanical Parameters (Identical):

• Adjustment Type: Side Adjustment
• Resistive Material: Cermet
• Mounting Type: Through Hole
• Termination Style: PC Pins
• Physical Dimensions: Rectangular - 0.260" x 0.330" Face (6.60mm x 8.38mm)

Functional Equivalence: Both parts belong to the Trimpot® 3329 sealed series and maintain identical performance characteristics across all specified electrical and mechanical parameters. The substitution is valid for any application requiring these exact specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the 3329X-1-502 and 3329X-1-502LF are active production parts with identical electrical and mechanical specifications. Selection between these parts should be based on the following factors:

Compliance Requirements: The 3329X-1-502LF carries ROHS3 compliance certification, while the 3329X-1-502 is RoHS non-compliant. Applications subject to RoHS regulations must use the 3329X-1-502LF variant.

Packaging Considerations: The 3329X-1-502LF is supplied in tube packaging, which may affect procurement, handling, and assembly processes compared to standard packaging of the 3329X-1-502.

Functional Interchangeability: Both parts are functionally equivalent and may be used interchangeably in applications where RoHS compliance is not a requirement. Where RoHS compliance is mandated, the 3329X-1-502LF is the required selection.

Frequently Asked Questions (FAQ)

Q: Can the 3329X-1-502LF replace the 3329X-1-502 in existing designs?

A: Yes. Both parts share identical electrical specifications (5 kOhms, 0.5W, ±10% tolerance, ±100ppm/°C temperature coefficient), mechanical configuration (side adjustment, cermet resistive material, PC pin termination), and physical dimensions (0.260" x 0.330" face). The 3329X-1-502LF is a direct functional equivalent.

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

A: The 3329X-1-502LF is ROHS3 compliant, while the 3329X-1-502 is RoHS non-compliant. Additionally, the 3329X-1-502LF is supplied in tube packaging. All electrical and mechanical parameters are identical.

Q: Are there any compatibility issues when substituting between these parts?

A: No compatibility issues exist. Both parts are from the same Trimpot® 3329 sealed series with identical through-hole PC pin termination, mounting footprint, and adjustment mechanism. Direct substitution is possible without circuit or PCB modifications.

Q: Which part should be selected for new designs?

A: For new designs subject to RoHS regulations, the 3329X-1-502LF must be selected. For applications without RoHS requirements, either part may be used based on packaging and inventory preferences.

Q: Does packaging affect the electrical or mechanical performance?

A: No. Packaging (standard versus tube) affects only procurement, storage, and assembly handling. The component performance and specifications remain identical regardless of packaging format.