ALS71U474NF025 Equivalent & Substitute Parts

Part Overview

The ALS71U474NF025 is a 470000 µF aluminum electrolytic capacitor rated at 25 V with screw terminals, manufactured by KEMET in the ALS71 series. This large-capacitance radial can capacitor is designed for general-purpose applications requiring high capacitance storage in chassis-mount configurations. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same functional category, enabling component interchangeability in system designs.

Substiute Parts

ALS71U474NF025

KEMETIn Stock: 1119ALS71U474NF025 Datasheet

Current PartRFQ

ALS70A474NF025

KEMETIn Stock: 822ALS70A474NF025 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALS71U474NF025 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• 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)
• Ripple current specifications: 28 A @ 100 Hz and 28.6 A @ 10 kHz (exact match required)

Mechanical Equivalence Criteria:

• Lead spacing: 31.80 mm (exact match required)
• Physical dimensions: 77.00 mm diameter, 107.00 mm height (exact match required)
• Package configuration: Radial, Can - Screw Terminals (exact match required)
• Mounting type: Chassis Mount (exact match required)

Compliance Equivalence Criteria:

• RoHS3 compliance status (required for regulatory alignment)
• Moisture sensitivity level: 1 (Unlimited)
• Product status: Active (current production availability)

The ALS70A474NF025 meets all specified criteria for direct substitution with the ALS71U474NF025.

Parameter Comparison

Engineering Selection Recommendations

The ALS70A474NF025 is a direct parametric equivalent to the ALS71U474NF025. Both parts are manufactured by KEMET, maintain identical electrical specifications, and share the same mechanical form factor with screw terminal connections. Both parts carry active product status with full RoHS3 compliance certification, ensuring regulatory alignment for current and future applications.

Selection between these two parts is based on inventory availability and supply chain considerations. The ALS71U474NF025 currently has 1079 units in stock, while the ALS70A474NF025 has 749 units available. The difference between the ALS71 and ALS70 series designations reflects internal KEMET product line organization and does not affect functional performance or compatibility in the application circuit.

For applications requiring immediate component availability, the ALS71U474NF025 offers higher stock levels. For applications where either part is acceptable, selection should follow standard procurement practices based on lead time, cost, and supply chain logistics.

Frequently Asked Questions (FAQ)

Q: Can the ALS70A474NF025 be used as a direct replacement for the ALS71U474NF025?

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

Q: What is the difference between the ALS71 and ALS70 series designations?

A: The series designation reflects KEMET's internal product line organization. Both series share identical electrical and mechanical specifications for this 470000 µF, 25 V capacitor model. The series difference does not affect performance, compatibility, or application suitability.

Q: Are the screw terminal connections identical between both parts?

A: Yes. Both the ALS71U474NF025 and ALS70A474NF025 use identical radial, can-style screw terminals with 31.80 mm lead spacing. No terminal adapter or modification is required for substitution.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both parts are ROHS3 compliant with identical moisture sensitivity level (MSL 1 - Unlimited). Both carry active product status from KEMET with identical lifetime ratings of 20000 hours at 85°C.

Q: What are the critical parameters that must match for substitution?

A: Substitution requires exact matching of capacitance (470000 µF), voltage rating (25 V), tolerance (±20%), ESR (9 mOhm @ 100Hz), ripple current specifications (28 A @ 100 Hz, 28.6 A @ 10 kHz), physical dimensions (77.00 mm diameter, 107.00 mm height), lead spacing (31.80 mm), and package configuration (Radial, Can - Screw Terminals).

Q: Can these parts be used in 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, supporting high-ripple-current general-purpose applications within the specified operating temperature range of -40°C to 85°C.

Q: Is there a performance difference between the two parts?

A: No. Both parts have identical ESR (9 mOhm @ 100Hz), impedance (10 mOhms), and lifetime specifications (20000 Hrs @ 85°C). Performance in the application circuit is equivalent.