Equivalent & Substitute Parts for 3329P-DK9-501LF

Part Overview

The 3329P-DK9-501LF is a 500 Ohm, 0.5W through-hole trimmer potentiometer manufactured by Bourns Inc. as part of the Trimpot® 3329 sealed series. This component features cermet resistive material, top adjustment, and PC pin termination for circuit board integration. The part maintains active product status with full RoHS3 compliance and REACH affected designation. Equivalent and substitute parts are identified when electrical specifications, mechanical mounting characteristics, and regulatory compliance align with the original component requirements.

Substiute Parts

3329P-DK9-501LF

Bourns Inc.In Stock: 11103329P-DK9-501LF Datasheet

Current PartRFQ

25PR500LF

TT Electronics/BIIn Stock: 346425PR500LF Datasheet

SimilarRFQ

82PR500LF

TT Electronics/BIIn Stock: 540482PR500LF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3329P-DK9-501LF is determined by strict alignment of the following parameters:

• Resistance value: 500 Ohms (exact match required)
• Power rating: 0.5W / 1/2W (exact match required)
• Tolerance: ±10% (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Number of turns: 1 (exact match required)
• Adjustment type: Top Adjustment (exact match required)
• Resistive material: Cermet (exact match required)
• Mounting type: Through Hole (exact match required)
• Termination style: PC Pins (exact match required)

Two substitute parts meet these criteria: 25PR500LF (TT Electronics/BI, Series 25) and 82PR500LF (TT Electronics/BI, Series 82). Both components satisfy all electrical and mechanical requirements for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

Both 25PR500LF and 82PR500LF satisfy the core electrical and mechanical requirements for substitution. Selection between these alternatives depends on specific application constraints:

The 82PR500LF maintains identical physical dimensions (round, 0.250" diameter) and ROHS3 compliance status as the original 3329P-DK9-501LF, making it the preferred substitute when PCB layout and regulatory alignment are critical. The 82PR500LF is available in bulk packaging.

The 25PR500LF provides an alternative with RoHS compliance and REACH unaffected status. This part features a square form factor (0.270" x 0.270" face) and is supplied in tube packaging. Selection of this substitute requires verification that the modified footprint accommodates the application's PCB layout constraints.

Both substitutes carry active product status and maintain full electrical specification alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can 25PR500LF and 82PR500LF be used interchangeably with 3329P-DK9-501LF?

A: Both parts meet all specified electrical parameters (500 Ohms, 0.5W, ±10% tolerance, ±100ppm/°C temperature coefficient, 1 turn, top adjustment, cermet material, through-hole mounting, PC pins). The 82PR500LF maintains identical round geometry. The 25PR500LF uses a square form factor and requires PCB layout verification.

Q: What is the primary difference between 82PR500LF and 25PR500LF?

A: The 82PR500LF maintains the round 0.250" diameter footprint matching the original part and is supplied in bulk packaging. The 25PR500LF features a square 0.270" x 0.270" footprint and is supplied in tube packaging. Both meet identical electrical specifications.

Q: Are there compliance differences between these substitutes?

A: The 3329P-DK9-501LF and 82PR500LF both carry ROHS3 compliance. The 25PR500LF carries RoHS compliance. The 3329P-DK9-501LF is REACH affected, while both 25PR500LF and 82PR500LF are REACH unaffected. Verify compliance requirements for your specific application.

Q: Does packaging format affect component performance?

A: Packaging format (tube versus bulk) does not affect electrical or mechanical performance. Selection depends on procurement and assembly process requirements.

Q: What physical constraints should be considered when selecting a substitute?

A: The 82PR500LF maintains the original round geometry (0.250" diameter). The 25PR500LF uses a square form factor (0.270" x 0.270" face). Verify PCB layout and mounting hole spacing accommodate the selected substitute's physical dimensions.