ALS81A124NF063 Equivalent & Substitute Parts

Part Overview

The ALS81A124NF063 is a 120000 µF, 63 V aluminum electrolytic capacitor with radial, can-mounted screw terminals manufactured by KEMET. This component is classified as Active product status and is designed for general purpose applications requiring high capacitance energy storage in chassis-mounted configurations. The part operates across a temperature range of -40°C to 105°C with a rated lifetime of 9000 hours at 105°C. Identifying equivalent substitute parts is necessary when the primary part becomes unavailable, when inventory constraints require alternative sourcing, or when design flexibility permits component selection from qualified alternatives meeting identical electrical and mechanical specifications.

Substiute Parts

ALS81A124NF063

KEMETIn Stock: 921ALS81A124NF063 Datasheet

Current PartRFQ

ALS80A124NF063

KEMETIn Stock: 1064ALS80A124NF063 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ALS81A124NF063 are identified based on strict electrical and mechanical parameter matching. The substitution logic is based on the following criteria:

Electrical Parameters (Must Match Exactly):

• Capacitance: 120000 µF
• Voltage Rating: 63 V
• Tolerance: ±20%
• ESR @ 100Hz: 9 mOhm
• Lifetime @ 105°C: 9000 Hrs
• Operating Temperature Range: -40°C to 105°C
• Ripple Current @ 100 Hz: 23.2 A
• Ripple Current @ 10 kHz: 24.6 A
• Impedance: 10 mOhms

Mechanical Parameters (Must Match Exactly):

• Package Type: Radial, Can - Screw Terminals
• Mounting Type: Chassis Mount
• Lead Spacing: 1.252" (31.80mm)
• Diameter: 3.031" (77.00mm)
• Height - Seated (Max): 4.213" (107.00mm)
• Polarization: Polar

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

The ALS80A124NF063 qualifies as a parametric equivalent because it maintains identical electrical performance specifications, mechanical dimensions, and compliance certifications while belonging to a different product series within the KEMET manufacturer portfolio.

Parameter Comparison

Engineering Selection Recommendations

The ALS80A124NF063 is a direct parametric equivalent to the ALS81A124NF063 for applications requiring 120000 µF, 63 V aluminum electrolytic capacitors with screw terminal connections. Both parts maintain Active product status from KEMET and carry identical electrical performance specifications, mechanical dimensions, and compliance certifications.

Selection between these parts is based on availability and inventory status. The ALS81A124NF063 has 815 pieces in stock, while the ALS80A124NF063 has 991 pieces in stock. Both parts are ROHS3 Compliant and REACH Unaffected, making them suitable for applications subject to environmental and regulatory compliance requirements.

The difference between the two parts is limited to their product series designation (ALS81 versus ALS80). This series distinction does not affect electrical performance, thermal characteristics, mechanical fit, or compliance status. The parts are functionally interchangeable in all applications where the ALS81A124NF063 is specified.

Frequently Asked Questions (FAQ)

Q: Can the ALS80A124NF063 be used as a direct replacement for the ALS81A124NF063?

A: Yes. The ALS80A124NF063 is a direct parametric equivalent. All electrical specifications, mechanical dimensions, operating temperature ranges, ripple current ratings, and compliance certifications are identical between the two parts.

Q: Are there any differences in physical dimensions between these parts?

A: No. Both parts have identical lead spacing (1.252" / 31.80mm), diameter (3.031" / 77.00mm), and maximum seated height (4.213" / 107.00mm). They are mechanically interchangeable in chassis-mounted applications.

Q: Do both parts have the same thermal performance?

A: Yes. Both parts operate across the same temperature range (-40°C to 105°C) and have identical lifetime ratings of 9000 hours at 105°C. ESR values are identical at 9 mOhm @ 100Hz.

Q: What is the difference between the ALS81 and ALS80 series?

A: The series designation indicates different product lines within KEMET's aluminum electrolytic capacitor portfolio. However, for the specific part numbers ALS81A124NF063 and ALS80A124NF063, all electrical and mechanical parameters are identical, making the series difference irrelevant for substitution purposes.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the ALS81A124NF063 and ALS80A124NF063 are ROHS3 Compliant and REACH Unaffected, meeting environmental and regulatory requirements for restricted substance use.

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

A: These are chassis-mounted components with screw terminals, not PCB-mounted parts. They are used in applications requiring direct mechanical mounting to a chassis or enclosure. Both parts have identical mounting specifications and can be used interchangeably in such applications.

Q: What is the ripple current rating for these capacitors?

A: Both parts have identical ripple current ratings: 23.2 A @ 100 Hz and 24.6 A @ 10 kHz. These ratings determine the maximum AC current the capacitor can handle without exceeding temperature limits.

Q: Is there any performance difference in ESR or impedance between these parts?

A: No. Both parts have identical ESR of 9 mOhm @ 100Hz and impedance of 10 mOhms. These parameters directly affect the capacitor's ability to handle ripple current and its frequency response characteristics.