CT-6ETH103 Equivalent & Substitute Parts

Part Overview

The CT-6ETH103 is a 10 kOhm, 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 form factors. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility parameters are maintained across alternative manufacturers.

Substiute Parts

CT-6ETH103

Nidec Components CorporationIn Stock: 842CT-6ETH103 Datasheet

Current PartRFQ

72XR10KLF

TT Electronics / BI TechnologiesIn Stock: 371872XR10KLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CT-6ETH103 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

• Resistance value: 10 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)
• RoHS compliance: ROHS3 Compliant (minimum requirement)

The 72XR10KLF from TT Electronics / BI Technologies meets all electrical and functional specifications. Physical dimensions vary (square 0.375" x 0.375" versus rectangular 0.323" x 0.276"), which may affect PCB layout compatibility depending on available board space.

Parameter Comparison

Engineering Selection Recommendations

Both the CT-6ETH103 and 72XR10KLF are active production components with identical electrical specifications and regulatory compliance. Selection between these parts should be based on:

• PCB layout constraints: The CT-6ETH103 occupies a smaller rectangular footprint (8.20mm x 7.00mm) compared to the 72XR10KLF square footprint (9.53mm x 9.53mm). Verify available board space before substitution.
• Packaging format: CT-6ETH103 is supplied in Tape & Box format; 72XR10KLF is supplied in Bulk format. Confirm packaging requirements for assembly and inventory management.
• Supply chain availability: Both parts maintain active inventory status. Current stock levels should be evaluated for project timelines.
• Regulatory compliance: Both parts meet ROHS3, REACH, and EAR99 requirements with no differentiation in compliance posture.

Frequently Asked Questions (FAQ)

Q: Can the 72XR10KLF directly replace the CT-6ETH103 in my circuit?

A: Yes, from an electrical standpoint. Both components have identical resistance (10 kOhms), power rating (0.5W), tolerance (±10%), temperature coefficient (±100ppm/°C), and adjustment characteristics. However, verify that the larger physical dimensions of the 72XR10KLF (9.53mm x 9.53mm square versus 8.20mm x 7.00mm rectangular) fit within your PCB layout.

Q: What is the primary difference between these two parts?

A: The electrical and functional specifications are identical. The main differences are physical dimensions and packaging format. The CT-6ETH103 has a smaller rectangular footprint and comes in Tape & Box packaging, while the 72XR10KLF has a larger square footprint and is supplied in Bulk packaging.

Q: Are there any compliance or regulatory differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. Regulatory posture is equivalent.

Q: Which part should I choose for a new design?

A: Selection depends on PCB space availability and packaging requirements. If board space is constrained, the CT-6ETH103's smaller footprint is advantageous. If bulk packaging is preferred for manufacturing efficiency, the 72XR10KLF is suitable. Both are equally valid from an engineering perspective.

Q: Can I use these parts interchangeably in existing inventory?

A: Electrical interchangeability is confirmed. Physical interchangeability requires verification of PCB hole spacing and component placement clearances. Confirm mechanical fit before substitution in production environments.