ALS71C474NF025 Equivalent & Substitute Parts

Part Overview

The ALS71C474NF025 is a 470000 µF, 25 V aluminum electrolytic capacitor manufactured by KEMET in the ALS71 series. This radial, can-style capacitor with screw terminals is designed for general-purpose applications requiring high capacitance values in chassis-mount configurations. The part maintains an active product status with 826 units in current inventory. Substitute parts are identified to provide design flexibility when the primary part becomes unavailable or when alternative series options are required for procurement optimization.

Substiute Parts

ALS71C474NF025

KEMETIn Stock: 849ALS71C474NF025 Datasheet

Current PartRFQ

ALS70A474NF025

KEMETIn Stock: 822ALS70A474NF025 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ALS71C474NF025 is determined by strict equivalence across the following critical parameters:

Capacitance Value: 470000 µF (exact match required)

Voltage Rating: 25 V (exact match required)

Tolerance: ±20% (exact match required)

ESR @ 100Hz: 9 mOhm (exact match required)

Lifetime @ 85°C: 20000 Hrs (exact match required)

Operating Temperature Range: -40°C ~ 85°C (exact match required)

Ripple Current Specifications: 28 A @ 100 Hz and 28.6 A @ 10 kHz (exact match required)

Impedance: 10 mOhms (exact match required)

Physical Dimensions: Lead spacing 31.80 mm, diameter 77.00 mm, height 107.00 mm (exact match required)

Mounting Configuration: Chassis Mount, Radial Can with Screw Terminals (exact match required)

Compliance: ROHS3 Compliant, MSL 1, REACH Unaffected (exact match required)

The ALS70A474NF025 qualifies as a parametric equivalent because it matches all critical electrical and mechanical specifications. The primary distinction is the series designation (ALS70A versus ALS71), which represents a different product line within KEMET's aluminum electrolytic capacitor portfolio while maintaining identical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS71C474NF025 and ALS70A474NF025 are active products manufactured by KEMET with full ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on:

Inventory Availability: The ALS71C474NF025 maintains 826 units in stock, while the ALS70A474NF025 has 749 units available. Either part is suitable for immediate procurement.

Series Continuity: If existing designs or documentation reference the ALS71 series, the primary part ALS71C474NF025 maintains series consistency. The ALS70A series represents an alternative KEMET product line with identical electrical and mechanical performance.

Compliance Certification: Both parts carry identical regulatory certifications (ROHS3, REACH Unaffected, EAR99 ECCN classification, HTSUS 8532.22.0085). No compliance advantage exists between the two options.

Thermal and Electrical Performance: Identical ESR, ripple current ratings, impedance, and lifetime specifications ensure equivalent performance in all operating conditions within the specified temperature range.

Frequently Asked Questions (FAQ)

Q: Can the ALS70A474NF025 be used as a direct replacement for the ALS71C474NF025?

A: Yes. The ALS70A474NF025 is a parametric equivalent with identical capacitance (470000 µF), voltage rating (25 V), ESR (9 mOhm @ 100Hz), ripple current specifications, physical dimensions, and thermal characteristics. Both parts are ROHS3 compliant and carry identical compliance certifications.

Q: Are there any physical differences between these two parts?

A: No. Both parts share identical physical specifications: 77.00 mm diameter, 107.00 mm maximum seated height, 31.80 mm lead spacing, and radial can configuration with screw terminals. They are mechanically interchangeable in chassis-mount applications.

Q: What determines whether a part can substitute for the ALS71C474NF025?

A: Substitution requires exact matching of: capacitance value (470000 µF), voltage rating (25 V), tolerance (±20%), ESR (9 mOhm @ 100Hz), lifetime rating (20000 Hrs @ 85°C), operating temperature range (-40°C ~ 85°C), ripple current specifications (28 A @ 100 Hz, 28.6 A @ 10 kHz), impedance (10 mOhms), physical dimensions, mounting type (chassis mount), package style (radial can with screw terminals), and compliance certifications (ROHS3, REACH Unaffected).

Q: Does the series designation (ALS71 versus ALS70A) affect performance?

A: No. The series designation identifies different product lines within KEMET's portfolio. The ALS71C474NF025 and ALS70A474NF025 deliver identical electrical performance, thermal characteristics, and reliability specifications despite different series classifications.

Q: Are both parts suitable for high-ripple-current applications?

A: Yes. Both parts are rated for 28 A ripple current at 100 Hz and 28.6 A at 10 kHz, making them suitable for applications requiring high ripple current handling at low and high frequencies.

Q: What is the moisture sensitivity level for these capacitors?

A: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. These capacitors can be stored and handled without moisture-control precautions.

Q: Are these parts suitable for long-term operation at elevated temperatures?

A: Yes. Both parts are rated for 20000 hours of operation at 85°C, with an operating temperature range of -40°C to 85°C. They maintain specified performance characteristics throughout this temperature range.