Equivalent & Substitute Parts for 3329P-DK9-502

Part Overview

The Bourns 3329P-DK9-502 is a 5 kOhm, 0.5W through-hole trimmer potentiometer with PC pin termination and top adjustment. This Trimpot® 3329 series component is actively manufactured and widely used in circuit tuning and calibration applications. Substitute parts become necessary when the primary part is unavailable, when alternative RoHS compliance levels are required, or when different packaging formats better suit production workflows.

Substiute Parts

3329P-DK9-502

Bourns Inc.In Stock: 8543329P-DK9-502 Datasheet

Current PartRFQ

25PR5KLF

TT Electronics/BIIn Stock: 941625PR5KLF Datasheet

SimilarRFQ

72PMR5KLF

TT Electronics/BIIn Stock: 487072PMR5KLF Datasheet

SimilarRFQ

82PR5KLF

TT Electronics/BIIn Stock: 268882PR5KLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3329P-DK9-502 is determined by strict electrical and mechanical parameter matching:

Electrical Parameters (Must Match):

• Resistance value: 5 kOhms
• Power rating: 0.5W (1/2W)
• Tolerance: ±10%
• Temperature coefficient: ±100ppm/°C
• Number of turns: 1
• Adjustment type: Top Adjustment
• Resistive material: Cermet

Mechanical Parameters (Must Match):

• Mounting type: Through Hole
• Termination style: PC Pins

Parameters Allowing Variation:

• Physical size/dimension (Round or Square configurations acceptable)
• Packaging format (Tube, Bulk)
• RoHS compliance status
• Manufacturer (Bourns Inc. or TT Electronics/BI)

All three substitute parts (25PR5KLF, 72PMR5KLF, 82PR5KLF) meet these substitution criteria.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are actively manufactured and electrically equivalent to the 3329P-DK9-502. Selection between substitutes depends on specific application requirements:

25PR5KLF (TT Electronics/BI Series 25):

• RoHS Compliant status suitable for applications requiring environmental compliance
• Tube packaging appropriate for controlled component handling
• Square form factor (0.270" x 0.270") differs from original round design; PCB layout accommodation required
• Highest inventory availability (9327 pcs)

72PMR5KLF (TT Electronics/BI Series 72):

• ROHS3 Compliant for latest regulatory requirements
• Bulk packaging suitable for high-volume production workflows
• Largest physical footprint (0.375" x 0.375" square); requires PCB space verification
• Moderate inventory availability (4800 pcs)

82PR5KLF (TT Electronics/BI Series 82):

• ROHS3 Compliant for latest regulatory requirements
• Bulk packaging suitable for high-volume production workflows
• Identical round form factor (0.250" Dia) to original part; direct PCB compatibility
• Lower inventory availability (2596 pcs)

Frequently Asked Questions (FAQ)

Q: Can I substitute the 3329P-DK9-502 with any of these parts without circuit redesign?

A: Electrical substitution is direct for all three parts. However, physical form factor differences require PCB layout verification. The 82PR5KLF maintains identical round geometry (0.250" Dia) to the original. The 25PR5KLF and 72PMR5KLF use square configurations and require PCB footprint accommodation.

Q: What is the difference between RoHS Compliant and ROHS3 Compliant status?

A: Both designations indicate compliance with Restriction of Hazardous Substances regulations. ROHS3 represents the latest regulatory iteration. The 25PR5KLF carries RoHS Compliant status, while 72PMR5KLF and 82PR5KLF carry ROHS3 Compliant status. The original 3329P-DK9-502 is RoHS non-compliant.

Q: Does packaging format affect electrical performance?

A: No. Tube and Bulk packaging formats do not affect component electrical characteristics. Packaging selection depends on production workflow, handling procedures, and inventory management requirements.

Q: Are there mechanical considerations for the square form factor substitutes?

A: Yes. The 25PR5KLF (0.270" x 0.270") and 72PMR5KLF (0.375" x 0.375") have different footprints than the original round design. PCB layout must accommodate these dimensions. The 82PR5KLF maintains the original 0.250" round diameter and requires no layout modification.

Q: Can I use these substitutes in existing designs without testing?

A: All substitute parts match the electrical specifications (5 kOhms, 0.5W, ±10% tolerance, ±100ppm/°C, 1 turn, top adjustment, cermet material, through-hole PC pins). Mechanical compatibility depends on PCB footprint design. Verify physical dimensions against your PCB layout before production implementation.