CT-6EW504 Equivalent & Substitute Parts

Part Overview

The CT-6EW504 is a 500 kOhm trimmer potentiometer manufactured by Nidec Components Corporation, rated at 0.5W with PC pin termination for through-hole mounting. This cermet-based trimmer features top adjustment with a 1-turn configuration and is designed for applications requiring precision resistance adjustment 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-6EW504

Nidec Components CorporationIn Stock: 1083CT-6EW504 Datasheet

Current PartRFQ

72PR500KLF

TT Electronics/BIIn Stock: 204372PR500KLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CT-6EW504 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

• Resistance value: 500 kOhms (exact match required)
• Power rating: 0.5W minimum
• Tolerance: ±10% or better
• Temperature coefficient: ±100ppm/°C or better
• Number of turns: 1-turn configuration
• Adjustment type: Top adjustment
• Resistive material: Cermet
• Mounting type: Through hole
• Termination style: PC pins
• Regulatory compliance: ROHS3 compliant

The 72PR500KLF from TT Electronics/BI meets all electrical specifications and regulatory requirements. Physical dimensions differ between the main part and substitute, which may affect PCB layout considerations but does not impact electrical performance or functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the CT-6EW504 and 72PR500KLF are active production parts with ROHS3 compliance and identical electrical performance specifications. Selection between these parts should be based on:

• PCB layout constraints: The CT-6EW504 occupies a smaller footprint (7.00mm square) compared to the 72PR500KLF (9.53mm square). Space-constrained designs favor the CT-6EW504.
• Inventory availability: The 72PR500KLF has higher stock availability (1969 pcs vs. 978 pcs).
• Supplier lead times and procurement channels specific to your supply chain.

Both parts are electrically interchangeable when mechanical space permits the larger footprint of the substitute.

Frequently Asked Questions (FAQ)

Q: Can the 72PR500KLF directly replace the CT-6EW504 in my circuit?

A: Yes, electrically. All electrical parameters—resistance, power rating, tolerance, temperature coefficient, and adjustment characteristics—are identical. Physical dimensions differ, so verify PCB layout compatibility before substitution.

Q: What is the significance of the different face dimensions?

A: The CT-6EW504 has a 7.00mm square footprint while the 72PR500KLF has a 9.53mm square footprint. This affects PCB hole spacing and component placement. Designs with tight spacing may not accommodate the larger substitute without layout modification.

Q: Are both parts RoHS compliant?

A: Yes. Both the CT-6EW504 and 72PR500KLF are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Do these parts have different moisture sensitivity levels?

A: The CT-6EW504 is rated MSL 1 (Unlimited). The 72PR500KLF lists MSL as Not Applicable. Both are suitable for standard storage and handling conditions without special moisture control requirements.

Q: What is the HTSUS classification for these parts?

A: Both parts share the same HTSUS code: 8533.40.8050, confirming their classification as trimmer potentiometers for tariff and trade purposes.