CT-20EX103 Equivalent & Substitute Parts

Part Overview

The CT-20EX103 is a 10 kOhms 0.5W through-hole trimmer potentiometer manufactured by Nidec Components Corporation. This cermet-based component features side adjustment with PC pin termination and is designed for applications requiring precision variable resistance in compact rectangular form factors. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified to provide equivalent electrical and mechanical performance for applications where the primary part number is unavailable or inventory constraints require alternative sourcing.

Substiute Parts

CT-20EX103

Nidec Components CorporationIn Stock: 993CT-20EX103 Datasheet

Current PartRFQ

CT-20EP103

Nidec Components CorporationIn Stock: 1264CT-20EP103 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CT-20EX103 are qualified based on strict equivalence across all critical electrical and mechanical parameters. The substitution criteria are:

• Identical resistance value: 10 kOhms
• Identical power rating: 0.5W (1/2W)
• 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: Rectangular - 0.252" x 0.197" Face (6.40mm x 5.00mm)
• Identical RoHS and environmental compliance status

The CT-20EP103 meets all these criteria and is classified as a direct manufacturer equivalent within the Nidec Components Corporation CT20 series.

Parameter Comparison

Engineering Selection Recommendations

Both the CT-20EX103 and CT-20EP103 are Active products with identical electrical specifications, mechanical dimensions, and regulatory compliance. Selection between these parts should be based on inventory availability and lead time requirements. Both parts maintain ROHS3 compliance and REACH Unaffected status, ensuring compatibility with current environmental regulations. The CT-20EP103 currently maintains higher inventory levels (1197 Pcs versus 940 Pcs), which may provide supply chain advantages for high-volume applications.

Frequently Asked Questions (FAQ)

Q: Can CT-20EP103 be used as a direct replacement for CT-20EX103?

A: Yes. The CT-20EP103 is electrically and mechanically equivalent to the CT-20EX103. All critical parameters including resistance value, power rating, tolerance, temperature coefficient, number of turns, adjustment type, resistive material, mounting type, termination style, and physical dimensions are identical. Both parts are manufactured by Nidec Components Corporation within the CT20 series.

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

A: No. Both parts carry identical RoHS3 compliance, REACH Unaffected status, and Moisture Sensitivity Level 1 (Unlimited) ratings. Regulatory and environmental compliance is equivalent.

Q: What is the difference between the CT-20EX and CT-20EP base product numbers?

A: The base product numbers (CT-20EX versus CT-20EP) indicate different internal design variants within the Nidec CT20 series. However, the specific part numbers CT-20EX103 and CT-20EP103 are electrically and mechanically equivalent for the 10 kOhms 0.5W configuration with all specified parameters matching.

Q: Can these parts be used interchangeably in PCB designs?

A: Yes. The identical physical dimensions (Rectangular - 0.252" x 0.197" Face / 6.40mm x 5.00mm), through-hole mounting type, and PC pin termination style ensure mechanical and electrical interchangeability in PCB layouts designed for either part number.

Q: What factors should determine which part to order?

A: Selection should be based on current inventory availability and supplier lead times. The CT-20EP103 currently has higher stock levels. Both parts are Active products with equivalent specifications and compliance status.