CT-6EW500 Equivalent & Substitute Parts

Part Overview

The CT-6EW500 is a 50 Ohm, 0.5W through-hole trimmer potentiometer manufactured by Nidec Components Corporation. This cermet-based component features top adjustment, PC pin termination, and a compact square form factor (7.00mm x 7.00mm). The part is active and in production with ROHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts become necessary when the CT-6EW500 reaches end-of-life status, inventory constraints occur, or design requirements necessitate alternative form factors or manufacturers while maintaining functional equivalence within specified electrical parameters.

Substiute Parts

CT-6EW500

Nidec Components CorporationIn Stock: 986CT-6EW500 Datasheet

Current PartRFQ

3329H-1-501LF

Bourns Inc.In Stock: 22193329H-1-501LF Datasheet

SimilarRFQ

3362F-1-501LF

Bourns Inc.In Stock: 13823362F-1-501LF Datasheet

SimilarRFQ

72PR500LF

TT Electronics/BIIn Stock: 127572PR500LF Datasheet

SimilarRFQ

82PR500LF

TT Electronics/BIIn Stock: 540482PR500LF Datasheet

SimilarRFQ

T73YE501KT20

Vishay SferniceIn Stock: 1753T73YE501KT20 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CT-6EW500 is constrained by the following critical parameters: power rating (0.5W), adjustment type (top adjustment), mounting method (through hole), termination style (PC pins), and resistive material (cermet). All substitute parts listed maintain these core electrical and mechanical specifications.

The substitute parts identified operate at 500 Ohms resistance, which represents a 10x increase from the main part specification. This resistance difference places these substitutes outside the direct equivalence category and requires circuit-level evaluation for compatibility. Substitutes are grouped by manufacturer and form factor while maintaining identical power ratings, tolerance, temperature coefficient, number of turns, and adjustment methodology.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain active production status and ROHS3 compliance, ensuring regulatory alignment with the CT-6EW500. Selection among substitutes depends on form factor compatibility within the target PCB layout and available board space.

The 3362F-1-501LF and T73YE501KT20 offer the most compact rectangular profiles (approximately 7.00mm x 6.60mm), suitable for space-constrained applications. The 82PR500LF and 3329H-1-501LF provide round form factors (6.35mm diameter), enabling rotational mounting flexibility. The 72PR500LF presents a larger square footprint (9.53mm x 9.53mm) for applications with less spatial constraints.

Packaging format varies: Bourns and Vishay parts are supplied in tube packaging, while Nidec and TT Electronics parts are supplied in bulk. This distinction affects procurement workflows and inventory management practices.

Frequently Asked Questions (FAQ)

Q: Can the CT-6EW500 be directly replaced with any of the listed substitutes?

A: Direct replacement is not possible due to resistance value differences. The CT-6EW500 operates at 50 Ohms, while all listed substitutes operate at 500 Ohms. Circuit-level evaluation is required to determine functional compatibility in specific applications.

Q: What electrical parameters remain constant across all parts?

A: Power rating (0.5W), tolerance (±10%), temperature coefficient (±100ppm/°C), number of turns (1), adjustment type (top adjustment), resistive material (cermet), mounting type (through hole), and termination style (PC pins) are identical across all parts.

Q: How do form factor differences affect PCB integration?

A: Form factor variations (square, round, rectangular) impact PCB footprint design and available mounting space. The 3362F-1-501LF and T73YE501KT20 rectangular designs match the CT-6EW500 footprint most closely. Round designs (82PR500LF, 3329H-1-501LF) require circular pad patterns. The 72PR500LF larger square format necessitates expanded board area allocation.

Q: Are there compliance differences between manufacturers?

A: All parts maintain ROHS3 compliance and EAR99 export classification. Moisture sensitivity levels vary: CT-6EW500 and T73YE501KT20 are rated MSL 1 (unlimited), while Bourns and TT Electronics parts are not applicable for MSL rating. REACH status differs: Nidec and TT Electronics parts are REACH unaffected, while Bourns and Vishay parts are REACH affected.

Q: What packaging considerations apply to procurement?

A: Nidec (CT-6EW500) and TT Electronics (72PR500LF, 82PR500LF) supply in bulk packaging. Bourns (3362F-1-501LF, 3329H-1-501LF) and Vishay (T73YE501KT20) supply in tube packaging. Bulk packaging supports high-volume assembly operations, while tube packaging accommodates lower-volume or manual assembly workflows.