477SML025M Equivalent & Substitute Parts

Part Overview

The 477SML025M is a 470 µF, 25 V aluminum electrolytic capacitor in surface mount radial can package manufactured by Cornell Dubilier / Illinois Capacitor. This component is classified as Active product status and is designed for general purpose applications requiring polarized capacitive energy storage and filtering. The SML series offers compact SMD form factor with 2000-hour lifetime rating at 85°C operating temperature.

Substitute parts are identified to provide design flexibility when the primary part becomes unavailable, when alternative packaging formats are required, or when enhanced performance characteristics within the same electrical specifications are needed.

Substiute Parts

477SML025M

Cornell Dubilier / Illinois CapacitorIn Stock: 915477SML025M Datasheet

Current PartRFQ

477AXZ025M

Cornell Dubilier / Illinois CapacitorIn Stock: 9503477AXZ025M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 477SML025M with the 477AXZ025M is valid based on the following alignment of critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Identical capacitance value: 470 µF
• Identical voltage rating: 25 V
• Identical tolerance: ±20%
• Identical polarization: Polar
• Identical application classification: General Purpose

Mechanical Compatibility Criteria:

• Identical package type: Radial, Can - SMD
• Identical mounting type: Surface Mount
• Identical physical diameter: 0.394" (10.00mm)
• Identical physical height: 0.417" (10.60mm)
• Compatible surface mount land sizes (10.00mm vs 10.30mm)

Compliance Alignment:

• Both parts are ROHS3 Compliant
• Both parts are REACH Unaffected
• Both parts carry identical ECCN and HTSUS classifications

The 477AXZ025M represents an enhanced variant within the same electrical class, offering extended operating temperature range (-55°C to 105°C versus -40°C to 85°C) and improved lifetime rating at elevated temperature (2000 Hrs @ 105°C versus 2000 Hrs @ 85°C).

Parameter Comparison

Engineering Selection Recommendations

Both the 477SML025M and 477AXZ025M are Active product status components manufactured by Cornell Dubilier / Illinois Capacitor and maintain full ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current and future applications.

The 477SML025M is the primary specification part with standard operating temperature range and baseline ESR characteristics suitable for general purpose applications within the -40°C to 85°C envelope.

The 477AXZ025M serves as a direct electrical substitute with identical capacitance, voltage, and tolerance specifications. This variant provides extended thermal performance with operating range to 105°C and lifetime rating at elevated temperature. The AXZ series is supplied in Tape & Reel packaging format, which differs from the SML series standard packaging. The surface mount land size difference (10.30mm versus 10.00mm) is within typical PCB design tolerance margins for SMD radial can components.

Selection between these parts depends on application thermal requirements and packaging format availability. Both parts satisfy the core electrical and mechanical substitution criteria for 470 µF, 25 V, ±20% tolerance aluminum electrolytic capacitors in surface mount radial can configuration.

Frequently Asked Questions (FAQ)

Q: Can the 477AXZ025M replace the 477SML025M in all applications?

A: The 477AXZ025M is electrically equivalent to the 477SML025M across all critical parameters: capacitance (470 µF), voltage rating (25 V), tolerance (±20%), and polarization (Polar). Both components are identical in physical diameter (10.00mm) and height (10.60mm). The primary differences are packaging format (Tape & Reel versus standard packaging) and extended operating temperature range on the AXZ variant. Substitution is valid for applications operating within the standard -40°C to 85°C range and for applications requiring extended thermal performance to 105°C.

Q: What is the impact of the surface mount land size difference?

A: The 477SML025M specifies 10.00mm x 10.00mm surface mount land size, while the 477AXZ025M specifies 10.30mm x 10.30mm. This 0.30mm difference per dimension is within standard PCB design tolerance for SMD radial can components and does not prevent substitution. PCB layouts designed for the SML series can accommodate the AXZ series without redesign.

Q: Are there differences in ESR or ripple current handling?

A: The 477SML025M exhibits 490 mOhm ESR at 120Hz with 430 mA ripple current at 120Hz. The 477AXZ025M exhibits 564 mOhm ESR at 120Hz with 425 mA ripple current at 120Hz. These differences are minor and within the tolerance band for general purpose aluminum electrolytic capacitors. The AXZ variant additionally specifies 850 mA ripple current at 100 kHz, providing enhanced high-frequency performance.

Q: What is the significance of the lifetime rating difference?

A: The 477SML025M is rated for 2000 hours at 85°C, while the 477AXZ025M is rated for 2000 hours at 105°C. Both parts meet the same lifetime specification at their respective rated temperatures. The AXZ variant provides extended thermal margin for applications operating at elevated ambient or component temperatures.

Q: Are both parts compliant with current regulatory requirements?

A: Both the 477SML025M and 477AXZ025M are ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for electronic component manufacturing and use in regulated markets.

Q: What packaging formats are available?

A: The 477SML025M is supplied in standard packaging format. The 477AXZ025M is supplied in Tape & Reel (TR) format, which is the industry standard for high-volume surface mount assembly operations. Tape & Reel packaging is compatible with automated pick-and-place equipment.