CT9P202 Trimmer Potentiometer - Equivalent & Substitute Parts

Part Overview

The CT9P202 is a 2 kOhm, 0.5W through-hole trimmer potentiometer manufactured by Vishay Beyschlag/Draloric/BC Components. This cermet-based side-adjustment trimmer features an 18-turn design with PC pin termination and rectangular form factor (9.60mm x 5.50mm). The part is currently obsolete, making equivalent substitutes necessary for ongoing production, maintenance, and repair applications where this component specification is required.

Substiute Parts

CT9P202

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1153CT9P202 Datasheet

Current PartRFQ

CT-9EP202

Nidec Components CorporationIn Stock: 1745CT-9EP202 Datasheet

DirectRFQ

3296P-1-202

Bourns Inc.In Stock: 21713296P-1-202 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CT9P202 is determined by strict equivalence across the following critical parameters: resistance value (2 kOhms), power rating (0.5W), tolerance (±10%), temperature coefficient (±100ppm/°C), adjustment type (side adjustment), resistive material (cermet), mounting type (through hole), and termination style (PC pins).

The identified substitutes maintain these core electrical and mechanical specifications. Variations in number of turns, physical dimensions, and compliance certifications are noted but do not disqualify substitution when the primary functional parameters align. Packaging format and product status (active vs. obsolete) are secondary considerations that may influence procurement strategy but do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

CT-9EP202 (Nidec Components Corporation) is the primary direct substitute. This part maintains identical electrical specifications and series designation (CT9) with the original CT9P202. The CT-9EP202 is currently in active production status with 1,730 units in stock. It achieves ROHS3 compliance, addressing regulatory requirements that the obsolete original part does not meet. Physical dimensions differ slightly (square 9.60mm x 9.60mm face versus rectangular 9.60mm x 5.50mm), requiring verification of PCB layout compatibility before implementation.

3296P-1-202 (Bourns Inc.) is a manufacturer-recommended alternative within the Trimpot® 3296 sealed series. This part satisfies all core electrical parameters but incorporates 25 turns instead of 18, providing finer adjustment resolution. The rectangular form factor (9.53mm x 4.83mm) more closely approximates the original CT9P202 dimensions. This part is actively produced with 2,100 units available. RoHS non-compliance status matches the original part. REACH affected status requires compliance verification for applications subject to REACH regulations.

Selection between these substitutes depends on regulatory compliance requirements, PCB layout constraints, and adjustment resolution needs for the specific application.

Frequently Asked Questions (FAQ)

Q: Can CT-9EP202 and 3296P-1-202 be used interchangeably with CT9P202?

A: Both parts satisfy the core electrical specifications (2 kOhms, 0.5W, ±10% tolerance, ±100ppm/°C temperature coefficient, cermet material, side adjustment, through-hole mounting, PC pin termination). Physical dimensions and turn count differ. PCB layout compatibility must be verified before substitution.

Q: What is the significance of the 18-turn versus 25-turn difference?

A: Turn count affects adjustment resolution. The 3296P-1-202 with 25 turns provides finer control granularity compared to the 18-turn CT9P202. For applications requiring coarse adjustment, this difference may be negligible. For precision tuning applications, the increased turn count may provide operational advantages.

Q: Does RoHS compliance affect electrical performance?

A: RoHS compliance status reflects manufacturing process and material composition but does not alter electrical or mechanical performance. The ROHS3-compliant CT-9EP202 and non-compliant 3296P-1-202 perform identically within specified electrical parameters. Compliance selection depends on regulatory requirements for the end application.

Q: Are physical dimension differences critical for substitution?

A: Physical dimensions must be verified against PCB layout, mounting hole spacing, and clearance requirements. The CT-9EP202 square form factor (9.60mm x 9.60mm) differs from the original rectangular design (9.60mm x 5.50mm). The 3296P-1-202 rectangular form (9.53mm x 4.83mm) more closely matches the original. Mechanical fit verification is required before production implementation.

Q: What packaging formats are available?

A: CT-9EP202 is supplied in bulk packaging. 3296P-1-202 is supplied in tube packaging. Packaging selection affects handling, storage, and automated assembly compatibility. Verify packaging requirements for your production process.