Bourns 3299P-1-101 Trimmer Potentiometer Equivalent & Substitute Parts

Part Overview

The Bourns 3299P-1-101 is a 100 Ohm, 0.5W through-hole trimmer potentiometer with PC pin termination and side adjustment capability. This sealed Trimpot® 3299 series component features cermet resistive material and 25-turn adjustment resolution. The part is currently active in production with 978 units in stock. Alternative equivalent parts may be required due to design revisions, supply chain considerations, or specific compliance requirements for end applications.

Substiute Parts

3299P-1-101

Bourns Inc.In Stock: 10003299P-1-101 Datasheet

Current PartRFQ

3296P-1-101

Bourns Inc.In Stock: 10843296P-1-101 Datasheet

DirectRFQ

3299P-1-101LF

Bourns Inc.In Stock: 10033299P-1-101LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3299P-1-101 is determined by strict equivalence across the following critical parameters: resistance value (100 Ohms), 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 electrical and mechanical criteria:

3296P-1-101: Maintains all electrical specifications and adjustment characteristics. Differs only in physical footprint (0.375" x 0.190" versus 0.240" x 0.375") and series designation (Trimpot® 3296 versus 3299). Suitable for applications where PCB layout accommodates the alternative dimensions.

3299P-1-101LF: Identical electrical and mechanical specifications to the main part. Differs only in RoHS compliance status (ROHS3 Compliant versus RoHS non-compliant). Suitable for applications requiring RoHS3 certification.

Parameter Comparison

Engineering Selection Recommendations

3299P-1-101LF is the preferred substitute when RoHS3 compliance is required for the end application. This part maintains identical electrical performance and physical dimensions while meeting current environmental compliance standards. All three parts share active product status and REACH affected designation.

3296P-1-101 is suitable as a substitute only when PCB layout can accommodate the different physical footprint (0.375" x 0.190" versus 0.240" x 0.375"). This part maintains all electrical specifications and sealed series protection. Verify mechanical clearance and mounting hole spacing before implementation.

Selection between these substitutes depends on specific application requirements: compliance mandates, available PCB space, and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can the 3296P-1-101 be used as a direct replacement for the 3299P-1-101?

A: The 3296P-1-101 is electrically equivalent but has different physical dimensions. It can substitute only if your PCB layout accommodates the 0.375" x 0.190" footprint instead of the 0.240" x 0.375" footprint of the 3299P-1-101. Verify mounting hole spacing and clearance requirements before substitution.

Q: What is the difference between 3299P-1-101 and 3299P-1-101LF?

A: Both parts are electrically and mechanically identical with the same 0.240" x 0.375" dimensions. The primary difference is RoHS compliance: 3299P-1-101 is RoHS non-compliant, while 3299P-1-101LF is ROHS3 compliant. Select 3299P-1-101LF for applications requiring RoHS3 certification.

Q: Are all three parts sealed Trimpot® components?

A: Yes. The 3299P-1-101 and 3299P-1-101LF are both Trimpot® 3299 - Sealed series. The 3296P-1-101 is Trimpot® 3296 - Sealed series. All three provide sealed protection for the adjustment mechanism.

Q: Do these parts have the same electrical specifications?

A: Yes. All three parts share identical electrical specifications: 100 Ohms resistance, 0.5W power rating, ±10% tolerance, ±100ppm/°C temperature coefficient, 25-turn adjustment, side adjustment type, and cermet resistive material.

Q: Which substitute should I choose for a new design?

A: For new designs, 3299P-1-101LF is recommended due to ROHS3 compliance alignment with current environmental standards. If your design requires the specific 3299 series footprint and RoHS compliance is not a constraint, the standard 3299P-1-101 is suitable. The 3296P-1-101 is appropriate only if your PCB layout specifically requires its smaller 0.375" x 0.190" dimensions.