CT9X202 Equivalent & Substitute Parts Reference

Part Overview

The CT9X202 is a 2 kOhm, 0.5W through-hole trimmer potentiometer manufactured by Vishay Beyschlag/Draloric/BC Components. This cermet-based component features 18 turns of adjustment with side-access design and PC pin termination, housed in a rectangular 9.60mm × 5.50mm package. The product is currently obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and production requirements.

Substiute Parts

CT9X202

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 886CT9X202 Datasheet

Current PartRFQ

CT-9EX202

Nidec Components CorporationIn Stock: 980CT-9EX202 Datasheet

DirectRFQ

3296X-1-202

Bourns Inc.In Stock: 23873296X-1-202 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CT9X202 is determined by strict equivalence across the following critical parameters:

• Resistance value: 2 kOhms (exact match required)
• Power rating: 0.5W minimum
• Tolerance: ±10% or better
• Temperature coefficient: ±100ppm/°C or better
• Adjustment type: Side adjustment
• Resistive material: Cermet
• Mounting: Through hole with PC pin termination
• Package footprint compatibility: Rectangular form factor

The CT9X202 has two identified substitutes that meet these criteria with noted variations in turn count and compliance status.

Parameter Comparison

Engineering Selection Recommendations

CT-9EX202 (Nidec Components Corporation) is the primary direct substitute. This part maintains identical electrical specifications, turn count, and package footprint to the CT9X202. The CT-9EX202 is currently in active production status with RoHS3 compliance, making it suitable for new designs and ongoing production where regulatory compliance is required. Inventory availability is confirmed at 891 pieces.

3296X-1-202 (Bourns Inc.) is a functional alternative with the following considerations: While all critical electrical parameters match the CT9X202, this part features 25 turns instead of 18, resulting in finer adjustment resolution. The package dimensions differ slightly (10.03mm × 4.83mm versus 9.60mm × 5.50mm), requiring verification of PCB layout compatibility. The 3296X-1-202 is active in production but does not carry RoHS compliance. This option is suitable for applications where the increased turn count provides design benefits and space constraints are not limiting factors.

Frequently Asked Questions (FAQ)

Q: Can the CT-9EX202 be used as a direct replacement for the CT9X202 without circuit modification?

A: Yes. The CT-9EX202 maintains identical electrical specifications, tolerance, temperature coefficient, and package footprint. No circuit modifications are required for functional equivalence.

Q: What is the significance of the 25-turn versus 18-turn difference between the CT9X202 and 3296X-1-202?

A: Turn count affects adjustment resolution. The 3296X-1-202 with 25 turns provides approximately 39% finer adjustment granularity per mechanical rotation compared to the 18-turn CT9X202. This may be advantageous in applications requiring precise tuning but does not affect electrical performance or final resistance value.

Q: Are there PCB layout considerations when substituting with the 3296X-1-202?

A: Yes. The 3296X-1-202 package dimensions (10.03mm × 4.83mm) differ from the CT9X202 (9.60mm × 5.50mm). PCB footprint compatibility must be verified before implementation. The CT-9EX202 maintains identical dimensions and requires no layout changes.

Q: What is the RoHS compliance status of these parts?

A: The CT9X202 is RoHS non-compliant. The CT-9EX202 is RoHS3 compliant. The 3296X-1-202 is RoHS non-compliant. For applications subject to RoHS requirements, the CT-9EX202 is the appropriate selection.

Q: Are all three parts available in current inventory?

A: The CT9X202 (obsolete) has 871 pieces in stock. The CT-9EX202 (active) has 891 pieces available. The 3296X-1-202 (active) has 2278 pieces in stock.