CT-6EN203 Trimmer Potentiometer - Equivalent & Substitute Parts

Part Overview

The CT-6EN203 is a 20 kOhm, 0.5W through-hole trimmer potentiometer manufactured by Nidec Components Corporation. This cermet-based side-adjustment trimmer is designed for PC pin termination in compact rectangular form factor (8.20mm x 7.00mm). The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical specifications and functional characteristics are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

CT-6EN203

Nidec Components CorporationIn Stock: 990CT-6EN203 Datasheet

Current PartRFQ

72XR20KLF

TT Electronics / BI TechnologiesIn Stock: 390072XR20KLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CT-6EN203 is determined by strict equivalence across the following critical parameters:

• Resistance value: 20 kOhms (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: Side Adjustment (exact match required)
• Resistive material: Cermet (exact match required)
• Mounting type: Through Hole (exact match required)
• Termination style: PC Pins (exact match required)
• Regulatory compliance: RoHS3 Compliant (minimum requirement)

The 72XR20KLF manufactured by TT Electronics / BI Technologies meets all electrical and functional equivalence criteria. Physical dimensions differ (square 9.53mm x 9.53mm versus rectangular 8.20mm x 7.00mm), which may affect PCB layout compatibility but does not alter electrical performance or functional operation.

Parameter Comparison

Engineering Selection Recommendations

Both the CT-6EN203 and 72XR20KLF are active production parts with full RoHS3 compliance and REACH unaffected status. Selection between these parts should be based on:

1. PCB layout constraints: The CT-6EN203 occupies a smaller rectangular footprint (8.20mm x 7.00mm), while the 72XR20KLF requires a larger square footprint (9.53mm x 9.53mm). Verify available board space before substitution.

2. Inventory availability: The 72XR20KLF has higher stock availability (3852 pcs) compared to the CT-6EN203 (975 pcs).

3. Electrical performance: Both parts deliver identical electrical characteristics and are functionally interchangeable from a circuit operation perspective.

4. Supply chain strategy: Either part may be selected based on procurement lead times and supplier relationships.

Frequently Asked Questions (FAQ)

Q: Can the 72XR20KLF replace the CT-6EN203 in my circuit?

A: Yes, electrically and functionally. Both parts share identical resistance (20 kOhms), power rating (0.5W), tolerance (±10%), temperature coefficient (±100ppm/°C), and adjustment characteristics. The primary consideration is physical footprint: the 72XR20KLF is larger (9.53mm square) than the CT-6EN203 (8.20mm x 7.00mm rectangular). Verify PCB layout compatibility before substitution.

Q: Are there any compliance differences between these parts?

A: No. Both parts are RoHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS (8533.40.8050) classifications.

Q: What is the moisture sensitivity difference?

A: The CT-6EN203 has MSL 1 (Unlimited), while the 72XR20KLF lists MSL as Not Applicable. This does not affect substitution eligibility; both parts are suitable for standard storage and handling conditions.

Q: Can I use the 72XR20KLF if my PCB design space is limited?

A: The 72XR20KLF's larger square footprint (9.53mm x 9.53mm) may not fit in spaces designed for the CT-6EN203's rectangular form factor (8.20mm x 7.00mm). Measure available board space and verify mechanical clearance before substitution.

Q: Are the adjustment mechanisms identical?

A: Yes. Both parts feature side adjustment with 1-turn operation and cermet resistive material, ensuring identical user interface and tuning characteristics.