ALS70U474NF025 Equivalent & Substitute Parts

Part Overview

The ALS70U474NF025 is a 470000 µF, 25 V aluminum electrolytic capacitor with radial, can-mounted screw terminals manufactured by KEMET. This component is classified as an active product suitable for general-purpose applications requiring high-capacitance energy storage in chassis-mounted configurations. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 20000 hours at 85°C. Equivalent substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when inventory constraints require component substitution within the same electrical and mechanical specifications.

Substiute Parts

ALS70U474NF025

KEMETIn Stock: 1032ALS70U474NF025 Datasheet

Current PartRFQ

ALS70A474NF025

KEMETIn Stock: 822ALS70A474NF025 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALS70U474NF025 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part ALS70A474NF025 qualifies as a direct equivalent based on the following criteria:

Electrical Parameter Equivalence:

• Identical capacitance value: 470000 µF
• Identical voltage rating: 25 V
• Identical tolerance: ±20%
• Identical ESR specification: 9 mOhm @ 100Hz
• Identical lifetime rating: 20000 Hrs @ 85°C
• Identical operating temperature range: -40°C to 85°C
• Identical ripple current specifications at both 100 Hz and 10 kHz

Mechanical Parameter Equivalence:

• Identical package type: Radial, Can - Screw Terminals
• Identical lead spacing: 31.80 mm (1.252")
• Identical physical dimensions: 77.00 mm diameter, 107.00 mm height
• Identical mounting type: Chassis Mount

Compliance Equivalence:

• Both parts are ROHS3 Compliant
• Both parts have MSL Rating 1 (Unlimited)
• Both parts are REACH Unaffected
• Both parts carry ECCN EAR99 classification

The substitute relationship is based solely on parametric matching within the ALS70 series from KEMET. No electrical performance degradation or functional limitation occurs when substituting between these part numbers.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS70U474NF025 and ALS70A474NF025 are active products from KEMET's ALS70 series and are suitable for direct substitution in applications requiring 470000 µF capacitance at 25 V. Selection between these parts should be based on availability and inventory status rather than electrical or mechanical performance differences, as all specified parameters are identical.

Both parts maintain ROHS3 compliance and carry unlimited moisture sensitivity level (MSL 1) ratings, making them suitable for standard storage and handling conditions without special precautions. The REACH Unaffected status and EAR99 ECCN classification are consistent across both part numbers.

For applications where the ALS70U474NF025 is specified, the ALS70A474NF025 provides full functional equivalence with no circuit redesign or board layout modification required. The identical screw terminal configuration, lead spacing, and physical dimensions ensure direct mechanical compatibility in chassis-mounted installations.

Frequently Asked Questions (FAQ)

Q: Can ALS70A474NF025 be used as a direct replacement for ALS70U474NF025?

A: Yes. The ALS70A474NF025 is a direct parametric equivalent. All electrical specifications, mechanical dimensions, and compliance certifications are identical. No circuit modifications or board layout changes are required.

Q: Are there any differences in capacitance tolerance between these parts?

A: No. Both parts carry an identical ±20% tolerance specification. Capacitance values will fall within the same range for both part numbers.

Q: Do these parts have the same ESR characteristics?

A: Yes. Both parts specify 9 mOhm ESR at 100 Hz and 10 mOhms impedance. Ripple current handling is identical at both 100 Hz (28 A) and 10 kHz (28.6 A).

Q: Are the physical dimensions and mounting configurations identical?

A: Yes. Both parts feature identical radial, can-mounted screw terminal packages with 31.80 mm lead spacing, 77.00 mm diameter, and 107.00 mm maximum seated height. Both are chassis-mount components.

Q: What is the difference between the ALS70U and ALS70A base product numbers?

A: The base product number difference (U versus A) does not reflect any electrical or mechanical parameter variation for this specific capacitance and voltage rating. Both variants meet identical specifications for the 470000 µF, 25 V configuration.

Q: Are both parts RoHS compliant?

A: Yes. Both ALS70U474NF025 and ALS70A474NF025 are ROHS3 Compliant with MSL Rating 1 (Unlimited) and REACH Unaffected status.

Q: What is the rated lifetime for these capacitors?

A: Both parts are rated for 20000 hours at 85°C operating temperature. The operating temperature range for both is -40°C to 85°C.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. The identical electrical performance, mechanical compatibility, and compliance certifications allow these parts to be used interchangeably without design modifications or performance impact.