ALS71A274NT063 Equivalent & Substitute Parts

Part Overview

The ALS71A274NT063 is a 270000 µF aluminum electrolytic capacitor rated at 63 V with screw terminals, manufactured by KEMET in the ALS71 series. This component is classified as an active product and is designed for general-purpose applications requiring high-capacitance energy storage in chassis-mounted configurations. The part features a radial can design with screw terminals, making it suitable for applications demanding robust mechanical connections and high ripple current handling at both low and high frequencies.

Equivalent and substitute parts are identified to provide design flexibility, support supply chain continuity, and accommodate component availability variations across manufacturing batches and inventory cycles.

Substiute Parts

ALS71A274NT063

KEMETIn Stock: 908ALS71A274NT063 Datasheet

Current PartRFQ

ALS70A274NT063

KEMETIn Stock: 1195ALS70A274NT063 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ALS71A274NT063 are identified based on strict electrical and mechanical parameter matching within the aluminum electrolytic capacitor category. The substitution logic is based on the following critical parameters:

Electrical Parameters (Must Match):

• Capacitance: 270000 µF
• Voltage Rating: 63 V
• Tolerance: ±20%
• ESR @ 100Hz: 7 mOhm
• Lifetime @ 85°C: 20000 Hrs
• Operating Temperature Range: -40°C to 85°C
• Ripple Current @ 100 Hz: 34.2 A
• Ripple Current @ 10 kHz: 35.5 A
• Impedance: 8 mOhms

Mechanical Parameters (Must Match):

• Lead Spacing: 31.80 mm (1.252")
• Diameter: 77.00 mm (3.031")
• Height - Seated (Max): 222.00 mm (8.740")
• Mounting Type: Chassis Mount
• Package / Case: Radial, Can - Screw Terminals
• Polarization: Polar

Compliance Parameters (Must Match):

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

The ALS70A274NT063 qualifies as a parametric equivalent because it maintains identical electrical performance specifications, mechanical dimensions, and compliance certifications while belonging to a different series within the KEMET product line.

Parameter Comparison

Engineering Selection Recommendations

Both the ALS71A274NT063 and ALS70A274NT063 are active products manufactured by KEMET with full ROHS3 compliance and REACH unaffected status. The parts are electrically and mechanically interchangeable based on all provided specifications.

Selection between these parts should be based on:

1. Inventory Availability: The ALS70A274NT063 currently has 1162 pieces in stock, while the ALS71A274NT063 has 887 pieces available. Component selection may be driven by supply chain requirements and lead time considerations.

2. Series Designation: The ALS71A274NT063 belongs to the ALS71 series, while the ALS70A274NT063 belongs to the ALS70 series. Both series are active KEMET product lines with identical performance characteristics for this capacitance and voltage rating.

3. Compliance Certifications: Both parts maintain identical compliance status across RoHS3, REACH, and moisture sensitivity classifications, ensuring regulatory requirements are met regardless of which part is selected.

4. Mechanical Integration: Both parts feature identical screw terminal configurations, lead spacing, and chassis mount dimensions, ensuring direct mechanical compatibility in existing PCB layouts and mechanical assemblies.

Frequently Asked Questions (FAQ)

Q: Can the ALS70A274NT063 be used as a direct replacement for the ALS71A274NT063?

A: Yes. The ALS70A274NT063 is a parametric equivalent with identical electrical specifications (270000 µF, 63 V, ±20% tolerance, 7 mOhm ESR @ 100Hz, 20000 Hrs @ 85°C), mechanical dimensions (77.00 mm diameter, 222.00 mm height, 31.80 mm lead spacing), and compliance certifications (ROHS3 Compliant, REACH Unaffected). Direct substitution is supported without circuit redesign.

Q: Are there any differences in performance between the ALS71A274NT063 and ALS70A274NT063?

A: No performance differences exist between these parts. All electrical parameters including capacitance, voltage rating, ESR, ripple current ratings, impedance, and operating temperature range are identical. The parts differ only in series designation within the KEMET product portfolio.

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

A: The series designation indicates the product line within KEMET's aluminum electrolytic capacitor portfolio. Both ALS71 and ALS70 series are active products with identical specifications for this particular capacitance and voltage rating. Series designation does not affect electrical or mechanical compatibility.

Q: Are the screw terminal configurations identical between these parts?

A: Yes. Both the ALS71A274NT063 and ALS70A274NT063 feature radial, can-style screw terminals with identical lead spacing of 31.80 mm (1.252"). Mechanical connection and PCB layout compatibility are fully maintained.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both parts are ROHS3 Compliant, REACH Unaffected, and have Moisture Sensitivity Level 1 (Unlimited). Regulatory and environmental compliance requirements are identical.

Q: What is the ripple current handling capability of these capacitors?

A: Both parts handle 34.2 A ripple current at 100 Hz (low frequency) and 35.5 A ripple current at 10 kHz (high frequency). These ratings determine the maximum AC current the capacitor can safely dissipate without exceeding temperature limits.

Q: What is the expected operational lifetime of these capacitors?

A: Both parts are rated for 20000 hours of operation at 85°C. Actual lifetime depends on operating conditions, ambient temperature, and applied ripple current. Operation at lower temperatures extends expected service life.

Q: Can these capacitors be used in applications requiring operation below -40°C or above 85°C?

A: No. Both parts are specified for operation within the -40°C to 85°C temperature range. Operation outside this range may result in performance degradation or component failure.

Q: What does the ±20% tolerance specification mean?

A: The ±20% tolerance indicates that the actual capacitance value may vary from the nominal 270000 µF by up to 20% in either direction. The acceptable range is 216000 µF to 324000 µF. This tolerance applies to both the ALS71A274NT063 and ALS70A274NT063.