CT-20EX104 Trimmer Potentiometer Equivalent & Substitute Parts

Part Overview

The CT-20EX104 is a 100 kOhms, 0.5W through-hole trimmer potentiometer manufactured by Nidec Components Corporation. This cermet-based component features side adjustment with 15 turns and PC pin termination, designed for precision tuning applications in electronic circuits. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when electrical specifications, mechanical dimensions, and termination styles remain identical across the CT20 series, ensuring direct functional equivalence in circuit applications.

Substiute Parts

CT-20EX104

Nidec Components CorporationIn Stock: 1148CT-20EX104 Datasheet

Current PartRFQ

CT-20EP104

Nidec Components CorporationIn Stock: 1310CT-20EP104 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution within the CT20 series is determined by strict equivalence across all critical electrical and mechanical parameters. The CT-20EP104 qualifies as a direct substitute for the CT-20EX104 based on the following matching criteria:

• Identical resistance value: 100 kOhms
• Identical power rating: 0.5W
• Identical tolerance: ±10%
• Identical temperature coefficient: ±100ppm/°C
• Identical number of turns: 15
• Identical adjustment type: Side Adjustment
• Identical resistive material: Cermet
• Identical mounting type: Through Hole
• Identical termination style: PC Pins
• Identical physical dimensions: 0.252" x 0.197" Face (6.40mm x 5.00mm)
• Identical compliance certifications: RoHS3, REACH Unaffected
• Identical moisture sensitivity level: MSL 1

The only distinction between these parts is the base product number designation (CT20EX versus CT20EP), which reflects internal Nidec manufacturing variants within the same functional specification class.

Parameter Comparison

Engineering Selection Recommendations

Both CT-20EX104 and CT-20EP104 maintain Active product status with full RoHS3 compliance and REACH unaffected designation, ensuring regulatory compliance for current and future applications. Selection between these parts should be based on inventory availability and supply chain considerations, as electrical performance and mechanical compatibility are functionally identical. Both components carry MSL 1 rating, eliminating moisture sensitivity constraints for standard storage and handling conditions. The cermet resistive element provides stable performance across the specified temperature coefficient range, suitable for precision tuning applications requiring long-term reliability.

Frequently Asked Questions (FAQ)

Q: Can CT-20EP104 be used as a direct replacement for CT-20EX104 in existing designs?

A: Yes. All electrical parameters, mechanical dimensions, termination styles, and compliance certifications are identical. No circuit modifications or PCB layout changes are required.

Q: What determines substitution eligibility for CT20 series trimmers?

A: Substitution is valid when resistance value, power rating, tolerance, temperature coefficient, number of turns, adjustment type, resistive material, mounting type, termination style, and physical dimensions are identical. The base product number variant (EX versus EP) does not affect functional equivalence.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts carry identical RoHS3 compliance, REACH unaffected status, and MSL 1 rating. No additional qualification or testing is required when switching between these variants.

Q: What is the significance of the base product number difference (CT20EX versus CT20EP)?

A: The base product number reflects internal Nidec manufacturing designations but does not indicate functional, electrical, or mechanical differences. Both variants meet identical specifications for the CT20 series.

Q: Are these parts suitable for high-temperature applications?

A: Both parts maintain a temperature coefficient of ±100ppm/°C. Application suitability depends on the specific operating temperature range required by the circuit design and the 0.5W power dissipation limit.