CT-6EW101 Equivalent & Substitute Parts

Part Overview

The CT-6EW101 is a 100 Ohm, 0.5W through-hole trimmer potentiometer manufactured by Nidec Components Corporation. This cermet-based component features top adjustment with PC pin termination and is designed for applications requiring precision variable resistance in compact form factors. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when electrical specifications, mechanical compatibility, and regulatory certifications align with the original component's performance envelope.

Substiute Parts

CT-6EW101

Nidec Components CorporationIn Stock: 787CT-6EW101 Datasheet

Current PartRFQ

3329H-1-101LF

Bourns Inc.In Stock: 12483329H-1-101LF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CT-6EW101 is determined by strict alignment across the following critical parameters:

• Resistance value: 100 Ohms (exact match required)
• Power rating: 0.5W minimum
• Tolerance: ±10% or better
• Temperature coefficient: ±100ppm/°C or better
• Number of turns: 1 Turn (single-turn operation)
• Adjustment type: Top Adjustment (user interface compatibility)
• Resistive material: Cermet (performance and stability characteristics)
• Mounting type: Through Hole (PCB integration method)
• Termination style: PC Pins (electrical connection interface)
• Regulatory compliance: RoHS3 Compliant minimum

The Bourns 3329H-1-101LF meets all substitution criteria. While physical dimensions differ (round 0.250" diameter versus square 0.276" x 0.276"), both components share identical electrical specifications, functional characteristics, and regulatory compliance status. Mechanical compatibility must be verified against specific PCB layout constraints.

Parameter Comparison

Engineering Selection Recommendations

The Bourns 3329H-1-101LF (3329H series Trimpot® Sealed) qualifies as a direct electrical substitute for the CT-6EW101. Both components maintain Active product status and achieve ROHS3 compliance with identical electrical performance across all specified parameters.

Selection between these components should be based on:

• PCB layout accommodation: The CT-6EW101 occupies a square footprint (7.00mm x 7.00mm), while the 3329H-1-101LF uses a circular footprint (6.35mm diameter). Verify available mounting space before substitution.
• Supply chain availability: CT-6EW101 inventory is 727 units; 3329H-1-101LF inventory is 1202 units.
• Packaging requirements: CT-6EW101 is supplied in Bulk packaging; 3329H-1-101LF is supplied in Tube packaging.
• Regulatory scope: Both components are ROHS3 compliant. The 3329H-1-101LF carries REACH Affected status, while the CT-6EW101 is REACH Unaffected.

Frequently Asked Questions (FAQ)

Q: Can the 3329H-1-101LF replace the CT-6EW101 in my circuit?

A: Yes, from an electrical standpoint. Both components deliver identical resistance (100 Ohms), power handling (0.5W), tolerance (±10%), and temperature stability (±100ppm/°C). Physical dimensions differ, so PCB layout compatibility must be confirmed.

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

A: The main differences are physical form factor (square versus round) and packaging method (Bulk versus Tube). Electrical specifications and performance characteristics are identical.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the CT-6EW101 and 3329H-1-101LF meet ROHS3 compliance requirements.

Q: Does the REACH status difference affect substitution?

A: REACH status reflects regulatory scope in specific markets. The CT-6EW101 is REACH Unaffected; the 3329H-1-101LF is REACH Affected. Verify your regulatory requirements before substitution.

Q: What is the moisture sensitivity rating for these components?

A: The CT-6EW101 carries MSL 1 (Unlimited). The 3329H-1-101LF lists MSL as Not Applicable. Both are suitable for standard storage and handling conditions.

Q: Can I use the 3329H-1-101LF if my PCB is designed for the square footprint?

A: No. The round 6.35mm diameter of the 3329H-1-101LF will not fit a PCB layout designed for the square 7.00mm x 7.00mm footprint of the CT-6EW101. PCB modification would be required.