AVS477M10F24B-F Equivalent & Substitute Parts

Part Overview

The AVS477M10F24B-F is a 470 µF, 10 V aluminum electrolytic capacitor in surface mount radial can package manufactured by Cornell Dubilier Electronics (CDE). This component is designed for automotive, bypass, and decoupling applications with AEC-Q200 automotive qualification. The part is discontinued at DiGi Electronics, necessitating identification of equivalent alternatives that maintain functional compatibility while meeting current availability and performance requirements.

Substiute Parts

AVS477M10F24B-F

Cornell Dubilier Electronics (CDE)In Stock: 655AVS477M10F24B-F Datasheet

Current PartRFQ

AHA477M16F24B-F

Cornell Dubilier Electronics (CDE)In Stock: 1102AHA477M16F24B-F Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AVS477M10F24B-F is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Capacitance value: 470 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Package type: Radial, Can - SMD (exact match required)
• Physical dimensions: 0.315" Dia (8.00 mm), Height 0.402" (10.20 mm) (exact match required)
• Surface mount land size: 0.327" L x 0.327" W (8.30 mm x 8.30 mm) (exact match required)
• Polarization: Polar (exact match required)
• Mounting type: Surface Mount (exact match required)

Allowable Parameter Variations:

• Voltage rating: May be equal to or greater than 10 V
• ESR: May be equal to or lower than 900 mOhm @ 120 Hz
• Operating temperature range: May be equal to or wider than -40°C ~ 85°C
• Lifetime @ temperature: May be equal to or greater than 2000 Hrs @ 85°C
• Automotive rating: AEC-Q200 compliance required
• RoHS and environmental compliance: ROHS3 and REACH status must be maintained

The substitute part AHA477M16F24B-F meets all mandatory compatibility parameters while providing improved electrical characteristics and extended operational capabilities.

Parameter Comparison

Engineering Selection Recommendations

The AHA477M16F24B-F is a direct substitute for the discontinued AVS477M10F24B-F based on the following engineering criteria:

Physical and Electrical Compatibility: All mechanical parameters are identical, including package type, dimensions, and surface mount land pattern. The capacitance value and tolerance remain unchanged at 470 µF ±20%, ensuring functional equivalence in circuit applications.

Voltage Rating Upgrade: The substitute part features a 16 V voltage rating compared to the original 10 V rating. This upgrade is compatible with all applications designed for the original part, as the substitute can operate safely at the original voltage specification while providing additional voltage margin.

Improved Electrical Performance: The AHA477M16F24B-F exhibits lower ESR (700 mOhm @ 120 Hz versus 900 mOhm @ 120 Hz), resulting in reduced power dissipation and improved ripple current handling capability.

Extended Operating Conditions: The substitute part maintains 2000 hours lifetime rating at an elevated temperature of 105°C compared to 85°C for the original part. The operating temperature range extends from -55°C to 105°C, providing broader environmental tolerance.

Compliance and Availability: Both parts maintain AEC-Q200 automotive qualification, ROHS3 compliance, and unlimited moisture sensitivity level (MSL 1). The substitute part is currently active in inventory with 997 pieces available, addressing the discontinuation status of the original part.

Frequently Asked Questions (FAQ)

Q: Can the AHA477M16F24B-F be used as a direct replacement for the AVS477M10F24B-F in existing designs?

A: Yes. The substitute part is mechanically and electrically compatible. All physical dimensions, capacitance value, tolerance, package type, and surface mount land pattern are identical. The higher voltage rating and improved ESR characteristics do not create compatibility issues in applications designed for the original part.

Q: What is the significance of the voltage rating difference between 10 V and 16 V?

A: The voltage rating indicates the maximum voltage the capacitor can safely withstand. A 16 V rated capacitor can operate at any voltage up to 16 V. Since the original application used a 10 V rated part, the 16 V substitute provides additional voltage margin without affecting circuit operation. The substitute is suitable for all applications where the original 10 V part was specified.

Q: Are there any thermal performance differences between these parts?

A: The AHA477M16F24B-F operates at higher temperature limits (-55°C to 105°C) compared to the AVS477M10F24B-F (-40°C to 85°C). Both parts maintain 2000 hours lifetime rating, though at different temperature points (105°C and 85°C respectively). The substitute part provides extended thermal operating range.

Q: How does the lower ESR of the substitute part affect circuit performance?

A: Lower ESR (700 mOhm versus 900 mOhm @ 120 Hz) reduces resistive losses and heat generation during operation. This improvement enhances ripple current handling and reduces voltage ripple across the capacitor. The substitute part delivers equal or superior performance in bypass and decoupling applications.

Q: Are both parts AEC-Q200 qualified for automotive applications?

A: Yes. Both the AVS477M10F24B-F and AHA477M16F24B-F carry AEC-Q200 automotive qualification. The substitute part maintains this critical certification, ensuring suitability for automotive bypass and decoupling applications.

Q: What is the physical footprint compatibility between these parts?

A: Both parts are identical in physical dimensions (0.315" diameter, 0.402" height) and surface mount land size (0.327" L x 0.327" W). The substitute part requires no PCB layout modifications and is compatible with existing surface mount assembly processes.

Q: Is the substitute part currently available?

A: Yes. The AHA477M16F24B-F is active in production with 997 pieces in stock, addressing the discontinued status of the original AVS477M10F24B-F.