ALS71H474NF025 Equivalent & Substitute Parts

Part Overview

The ALS71H474NF025 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 is currently active in production with 647 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part number becomes unavailable or when inventory constraints require component flexibility within equivalent electrical and mechanical specifications.

Substiute Parts

ALS71H474NF025

KEMETIn Stock: 663ALS71H474NF025 Datasheet

Current PartRFQ

ALS70A474NF025

KEMETIn Stock: 822ALS70A474NF025 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALS71H474NF025 is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Capacitance: 470000 µF
• Voltage Rating: 25 V
• Tolerance: ±20%
• ESR: 9 mOhm @ 100Hz
• Lifetime: 20000 Hrs @ 85°C
• Operating Temperature: -40°C ~ 85°C
• Ripple Current: 28 A @ 100 Hz and 28.6 A @ 10 kHz

Mechanical Parameters (Must Match):

• Lead Spacing: 1.252" (31.80 mm)
• Size / Dimension: 3.031" Dia (77.00 mm)
• Height - Seated (Max): 4.213" (107.00 mm)
• Mounting Type: Chassis Mount
• Package / Case: Radial, Can - Screw Terminals

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute part ALS70A474NF025 meets all specified electrical, mechanical, and compliance requirements and is therefore classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS71H474NF025 and ALS70A474NF025 are active production parts manufactured by KEMET with identical electrical specifications, mechanical dimensions, and compliance certifications. The primary difference between these parts is the series designation (ALS71 versus ALS70), which reflects internal design iterations within KEMET's product line while maintaining full parametric equivalence.

Selection between these parts should be based on:

1. Inventory Availability: ALS71H474NF025 has 647 units in stock; ALS70A474NF025 has 749 units in stock.

2. Compliance Requirements: Both parts are ROHS3 compliant, REACH unaffected, and classified as MSL 1 (unlimited moisture sensitivity level), suitable for unrestricted storage and handling.

3. Mechanical Fit: Both parts are identical in physical dimensions and mounting configuration, ensuring direct mechanical compatibility in chassis-mount applications.

4. Electrical Performance: Identical capacitance, voltage rating, ESR, ripple current ratings, and thermal lifetime specifications ensure functional interchangeability in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can ALS70A474NF025 be used as a direct replacement for ALS71H474NF025?

A: Yes. The ALS70A474NF025 is a parametric equivalent with identical electrical specifications (470000 µF, 25 V, ±20% tolerance, 9 mOhm ESR @ 100Hz, 20000 Hrs @ 85°C), mechanical dimensions (3.031" Dia × 4.213" Height, 1.252" lead spacing), and compliance certifications (ROHS3, MSL 1). Both parts are suitable for direct substitution in the same circuit application.

Q: Are there any differences in performance between ALS71H474NF025 and ALS70A474NF025?

A: No performance differences exist. Both parts share identical electrical parameters including capacitance, voltage rating, ESR, ripple current ratings, operating temperature range, and thermal lifetime. The series designation difference (ALS71 versus ALS70) reflects internal product line management but does not affect functional performance.

Q: What is the significance of the series designation (ALS71 versus ALS70)?

A: The series designation indicates the product line within KEMET's aluminum electrolytic capacitor portfolio. Both ALS71 and ALS70 series maintain the same electrical and mechanical specifications for this 470000 µF, 25 V capacitor model, allowing for interchangeable use in applications.

Q: Are both parts suitable for the same mounting configuration?

A: Yes. Both ALS71H474NF025 and ALS70A474NF025 are chassis-mount capacitors with radial, can-style screw terminals. Physical dimensions, lead spacing, and mounting type are identical, ensuring compatibility with the same PCB layout and mechanical assembly.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and classified as Moisture Sensitivity Level 1 (unlimited). These certifications indicate compliance with environmental and regulatory requirements for unrestricted use in industrial and commercial applications.

Q: Can these parts be stored without special handling requirements?

A: Yes. Both parts are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard industrial storage conditions are appropriate for both ALS71H474NF025 and ALS70A474NF025.