CT-6EV500 Trimmer Potentiometer: Equivalent & Substitute Parts

Part Overview

The CT-6EV500 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 currently active in production and ROHS3 compliant.

Substitute parts become necessary when the CT-6EV500 experiences supply constraints, extended lead times, or when design flexibility permits resistance value adjustments within system tolerance. All listed substitutes maintain electrical and mechanical compatibility through equivalent power ratings, adjustment types, termination styles, and mounting configurations.

Substiute Parts

CT-6EV500

Nidec Components CorporationIn Stock: 772CT-6EV500 Datasheet

Current PartRFQ

3329H-1-501LF

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

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3362F-1-501LF

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

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72PR500LF

TT Electronics/BIIn Stock: 127572PR500LF Datasheet

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82PR500LF

TT Electronics/BIIn Stock: 540482PR500LF Datasheet

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T73YE501KT20

Vishay SferniceIn Stock: 1753T73YE501KT20 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters:

• Power Rating: 0.5W (1/2W) — all substitutes match
• Tolerance: ±10% — all substitutes match
• Temperature Coefficient: ±100ppm/°C — all substitutes match
• Number of Turns: 1 Turn — all substitutes match
• Adjustment Type: Top Adjustment — all substitutes match
• Resistive Material: Cermet — all substitutes match
• Mounting Type: Through Hole — all substitutes match
• Termination Style: PC Pins — all substitutes match
• RoHS Status: ROHS3 Compliant — all substitutes match

All five substitute parts listed (3329H-1-501LF, 3362F-1-501LF, 72PR500LF, 82PR500LF, T73YE501KT20) meet these core electrical and mechanical requirements. The primary difference is resistance value: substitutes are rated at 500 Ohms versus the CT-6EV500's 50 Ohms. This tenfold increase in resistance value requires circuit-level validation to confirm system tolerance.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain active product status and ROHS3 compliance, ensuring regulatory alignment with the CT-6EV500. Selection among substitutes depends on three factors:

Resistance Value Compatibility: The CT-6EV500 operates at 50 Ohms. All listed substitutes are rated at 500 Ohms. This tenfold resistance increase alters circuit behavior and must be validated at the system level before implementation.

Form Factor and PCB Layout: The CT-6EV500 features a square 7.00mm x 7.00mm footprint. Substitutes vary in geometry:

• 3329H-1-501LF and 82PR500LF: Round 6.35mm diameter (smallest)
• 3362F-1-501LF and T73YE501KT20: Rectangular ~7.00mm x 6.60mm (closest to original)
• 72PR500LF: Square 9.53mm x 9.53mm (largest)

Packaging and Supply: The CT-6EV500 is supplied in bulk. Bourns and Vishay substitutes are supplied in tubes; TT Electronics/BI substitutes are supplied in bulk. Packaging selection affects handling and inventory management.

Compliance Status: REACH status varies. The CT-6EV500 is REACH Unaffected. Bourns parts are REACH Affected; TT Electronics/BI and Vishay parts are REACH Unaffected. Verify REACH compliance requirements for your application region.

Frequently Asked Questions (FAQ)

Q: Can I directly replace the CT-6EV500 with a 500 Ohm substitute?

A: Direct replacement requires circuit-level validation. The tenfold resistance increase (50 Ohms to 500 Ohms) affects voltage dividers, impedance matching, and signal conditioning. Electrical performance must be confirmed before implementation.

Q: Which substitute has the closest physical footprint to the CT-6EV500?

A: The 3362F-1-501LF (Bourns Trimpot® 3362) and T73YE501KT20 (Vishay Sfernice T73) both feature rectangular form factors approximately 7.00mm x 6.60mm, closely matching the CT-6EV500's 7.00mm x 7.00mm square footprint. These minimize PCB layout modifications.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All five substitute parts are ROHS3 compliant, matching the CT-6EV500's regulatory status.

Q: What is the difference between bulk and tube packaging?

A: Bulk packaging supplies loose components suitable for high-volume automated assembly. Tube packaging supplies components in protective plastic tubes, typically for lower-volume or manual assembly operations. The CT-6EV500 and TT Electronics/BI substitutes are bulk-packaged; Bourns and Vishay substitutes are tube-packaged.

Q: Does REACH status affect component selection?

A: REACH status indicates regulatory compliance in the European Union. The CT-6EV500 is REACH Unaffected. Bourns substitutes are REACH Affected; TT Electronics/BI and Vishay substitutes are REACH Unaffected. Selection depends on your application's geographic distribution and regulatory requirements.

Q: Can I use the 72PR500LF if space is not a constraint?

A: Yes. The 72PR500LF meets all electrical and mechanical compatibility criteria. Its larger 9.53mm x 9.53mm square footprint requires additional PCB space but does not affect electrical performance. Verify that your circuit board layout accommodates this larger form factor.