SEK471M063ST

Part Overview

The SEK471M063ST is a 470 µF, 63 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, through-hole configuration. This component is classified as Active product status and is suitable for general-purpose applications requiring rated voltage of 63 V with ±20% capacitance tolerance. Alternative models become necessary when specific performance characteristics such as extended lifetime, improved ripple current handling, or different physical dimensions are required for circuit optimization or design revision.

Substiute Parts

SEK471M063ST

Cornell Dubilier Electronics (CDE)In Stock: 728SEK471M063ST Datasheet

Current PartRFQ

UPS1J471MHD

NichiconIn Stock: 1135UPS1J471MHD Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SEK471M063ST is governed by strict adherence to the following critical parameters:

• Capacitance value: Must equal 470 µF
• Voltage rating: Must equal or exceed 63 V
• Tolerance: ±20% or better
• Operating temperature range: Must cover -55°C ~ 105°C
• Mounting type: Through Hole only
• Package configuration: Radial, Can
• Lead spacing: 0.197" (5.00 mm)
• Polarization: Polar

The identified substitute UPS1J471MHD from Nichicon satisfies all mandatory electrical and mechanical parameters. Physical dimensions show minor variation (diameter 12.50 mm vs. 13.00 mm, height 27.00 mm vs. 26.00 mm), which remains compatible with standard PCB through-hole layouts designed for 5.00 mm lead spacing. The substitute provides extended lifetime (3000 Hrs @ 105°C vs. 2000 Hrs @ 105°C) and comparable ripple current specifications.

Parameter Comparison

Engineering Selection Recommendations

The SEK471M063ST is suitable for applications requiring the specifications of an Active product. The UPS1J471MHD substitute is classified as Not For New Designs by Nichicon. Selection between these components depends on application phase: the SEK471M063ST is appropriate for new design work, while the UPS1J471MHD may serve as a replacement in existing assemblies where component availability or lifecycle considerations apply.

Both components meet ROHS3 compliance and REACH unaffected status, confirming regulatory alignment for industrial and commercial applications. The extended lifetime characteristic of the UPS1J471MHD (3000 Hrs vs. 2000 Hrs @ 105°C) provides improved reliability margin in temperature-stressed environments.

Frequently Asked Questions (FAQ)

Q: Can the UPS1J471MHD directly replace the SEK471M063ST in existing circuit designs?

A: Yes, provided the minor dimensional variations (diameter reduction of 0.020" and height increase of 0.039") do not conflict with PCB layout constraints. Lead spacing remains identical at 5.00 mm, enabling direct through-hole compatibility on standard PCB designs.

Q: What is the significance of the "Not For New Designs" status of the UPS1J471MHD?

A: This designation indicates the UPS1J471MHD is suitable for field replacement and legacy system support but should not be selected for new product development. The SEK471M063ST remains the preferred choice for new design initiatives.

Q: Do the ripple current differences affect substitution validity?

A: No. The UPS1J471MHD demonstrates equivalent or superior ripple current performance across both low frequency (852 mA @ 120 Hz vs. 800 mA) and high frequency (1.2 A @ 100 kHz vs. 1.12 A @ 10 kHz) specifications, supporting full electrical compatibility.

Q: How do the ESR characteristics compare between parts?

A: The SEK471M063ST specifies 280 mOhm ESR @ 120 Hz. The UPS1J471MHD provides 81 mOhms impedance, indicating lower equivalent series resistance and potentially improved high-frequency performance characteristics.

Q: Are there compliance or certification considerations when substituting these components?

A: Both components maintain identical regulatory status: ROHS3 Compliant and REACH Unaffected. No additional compliance validation is required when substituting between these parts for applications with equivalent environmental and regulatory requirements.