Bourns 3299P-1-105 Trimmer Potentiometer Equivalent & Substitute Parts

Part Overview

The Bourns 3299P-1-105 is a 1 MOhm, 0.5W through-hole trimmer potentiometer with PC pin termination, featuring cermet resistive material and 25-turn side adjustment. This sealed Trimpot® 3299 series component is actively manufactured and stocked at 718 units. Substitute parts are identified to address RoHS compliance requirements, series availability, and dimensional variations while maintaining core electrical and mechanical specifications.

Substiute Parts

3299P-1-105

Bourns Inc.In Stock: 7913299P-1-105 Datasheet

Current PartRFQ

3299P-1-105LF

Bourns Inc.In Stock: 9083299P-1-105LF Datasheet

DirectRFQ

PV36P105C01B00

Bourns Inc.In Stock: 1295PV36P105C01B00 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by matching the following critical parameters: resistance value (1 MOhms), power rating (0.5W), tolerance (±10%), temperature coefficient (±100ppm/°C), number of turns (25), adjustment type (side adjustment), resistive material (cermet), mounting type (through hole), and termination style (PC pins).

Two substitute parts meet these criteria:

Direct Substitute (3299P-1-105LF): Identical electrical and mechanical specifications within the same Trimpot® 3299 series. Differs only in RoHS compliance status (ROHS3 Compliant vs. non-compliant).

Series Substitute (PV36P105C01B00): Maintains all electrical parameters and core mechanical specifications. Belongs to the PV36 series with different face dimensions (0.378" x 0.197" vs. 0.240" x 0.375"). Suitable where dimensional constraints permit the larger footprint.

Parameter Comparison

Engineering Selection Recommendations

3299P-1-105LF is the primary substitute when RoHS3 compliance is required. It maintains identical electrical performance, mechanical form factor, and series designation. Selection is appropriate for designs requiring regulatory compliance without PCB layout modification.

PV36P105C01B00 serves as an alternative when the larger face dimension (0.378" x 0.197") accommodates board space constraints. This part provides ROHS3 compliance and higher inventory availability (1235 units). PCB footprint verification is necessary prior to implementation due to dimensional differences.

The original 3299P-1-105 remains suitable for applications where RoHS non-compliance is acceptable and the specific Trimpot® 3299 series is required.

Frequently Asked Questions (FAQ)

Q: Can 3299P-1-105LF replace 3299P-1-105 without PCB modification?

A: Yes. Both parts share identical electrical specifications, tolerance, temperature coefficient, number of turns, adjustment type, resistive material, mounting type, termination style, and face dimensions. PCB footprint compatibility is direct.

Q: What is the primary difference between 3299P-1-105 and 3299P-1-105LF?

A: RoHS compliance status. The 3299P-1-105LF is ROHS3 compliant, while the original 3299P-1-105 is non-compliant. All electrical and mechanical parameters are identical.

Q: Can PV36P105C01B00 be used in place of 3299P-1-105?

A: Electrical substitution is valid. However, the PV36P105C01B00 has different face dimensions (0.378" x 0.197" versus 0.240" x 0.375"). PCB layout verification is required to confirm the larger footprint fits available space.

Q: Are all three parts from the same manufacturer?

A: Yes. All parts are manufactured by Bourns Inc. The 3299P-1-105 and 3299P-1-105LF belong to the Trimpot® 3299 series, while PV36P105C01B00 belongs to the PV36 series.

Q: What parameters must match for electrical substitution?

A: Resistance (1 MOhms), power rating (0.5W), tolerance (±10%), temperature coefficient (±100ppm/°C), number of turns (25), adjustment type (side adjustment), resistive material (cermet), mounting type (through hole), and termination style (PC pins) must all match.

Q: Which substitute has the highest inventory availability?

A: PV36P105C01B00 with 1235 units in stock, followed by 3299P-1-105LF with 830 units.