ALC80D271CD400 Equivalent & Substitute Parts

Part Overview

The ALC80D271CD400 is a 270 µF, 400 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by KEMET. This component is classified as Active product status and is designed for general purpose applications requiring high voltage energy storage and filtering. The part operates across a temperature range of -40°C to 105°C with a rated lifetime of 7000 hours at 105°C.

Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity. Substitutes maintain identical or functionally equivalent electrical and mechanical parameters within the specified tolerance ranges.

Substiute Parts

ALC80D271CD400

KEMETIn Stock: 274102ALC80D271CD400 Datasheet

Current PartRFQ

ALC80A271CD400

KEMETIn Stock: 274019ALC80A271CD400 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ALC80D271CD400 are identified based on strict equivalence of the following critical parameters:

Electrical Parameters:

• Capacitance: 270 µF (exact match)
• Voltage Rating: 400 V (exact match)
• Tolerance: ±20% (exact match)
• ESR @ 100Hz: within specification range
• Lifetime @ 105°C: 7000 hours (exact match)
• Operating Temperature: -40°C to 105°C (exact match)
• Ripple Current ratings: 1.74 A @ 100 Hz and 5.14 A @ 10 kHz (exact match)

Mechanical Parameters:

• Lead Spacing: 10.00 mm (exact match)
• Diameter: 30.00 mm (exact match)
• Height - Seated (Max): 42.00 mm (exact match)
• Mounting Type: Through Hole (exact match)
• Package / Case: Radial, Can - Snap-In (exact match)

Compliance Parameters:

• RoHS Status: ROHS3 Compliant (exact match)
• REACH Status: REACH Unaffected (exact match)

Substitutes must maintain all electrical performance characteristics, physical dimensions for PCB compatibility, and regulatory compliance certifications. Variations in ESR within the specified tolerance are acceptable.

Parameter Comparison

Engineering Selection Recommendations

The ALC80A271CD400 is a direct parametric equivalent to the ALC80D271CD400. Both parts are manufactured by KEMET within the ALC80 series and maintain identical electrical specifications, mechanical dimensions, and regulatory compliance certifications.

Selection between these parts is based on:

Product Status: Both parts carry Active status, indicating current manufacturing and availability.

Regulatory Compliance: Both parts are ROHS3 Compliant and REACH Unaffected, meeting current environmental and hazardous substance directives.

Electrical Performance: ESR values differ by 0.4 mOhm (448 mOhm versus 448.4 mOhm), which is within normal manufacturing tolerance and does not affect functional equivalence for general purpose applications.

Physical Compatibility: Identical lead spacing (10.00 mm), diameter (30.00 mm), and height (42.00 mm) ensure direct PCB footprint compatibility without layout modifications.

Thermal and Electrical Ratings: Identical ripple current ratings, impedance, lifetime at temperature, and operating temperature range confirm functional interchangeability in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can ALC80A271CD400 be used as a direct replacement for ALC80D271CD400?

A: Yes. The ALC80A271CD400 meets all electrical and mechanical parameter requirements for direct substitution. Both parts share identical capacitance (270 µF), voltage rating (400 V), tolerance (±20%), lifetime (7000 Hrs @ 105°C), ripple current ratings, and physical dimensions. ESR values are equivalent within manufacturing tolerance.

Q: Are there any PCB layout changes required when substituting ALC80A271CD400 for ALC80D271CD400?

A: No. Both parts have identical lead spacing (10.00 mm), diameter (30.00 mm), and height (42.00 mm). The snap-in radial can package is identical, requiring no PCB footprint modifications.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both ALC80D271CD400 and ALC80A271CD400 are ROHS3 Compliant and REACH Unaffected, meeting current environmental and hazardous substance regulations.

Q: What is the difference between the ALC80D and ALC80A base product numbers?

A: The base product numbers (ALC80D versus ALC80A) indicate different internal design revisions within the ALC80 series. However, the parametric specifications, electrical performance, and physical dimensions remain identical for the 270 µF 400 V configuration, making them functionally equivalent.

Q: Are the ESR specifications identical between these two parts?

A: ESR values are 448 mOhm (ALC80D271CD400) and 448.4 mOhm (ALC80A271CD400). This 0.4 mOhm difference is within normal manufacturing tolerance and does not affect circuit performance or thermal characteristics.

Q: Can these parts be used interchangeably in high ripple current applications?

A: Yes. Both parts are rated for identical ripple current specifications: 1.74 A @ 100 Hz and 5.14 A @ 10 kHz. Thermal performance and lifetime at 105°C are identical (7000 hours), supporting interchangeable use in high ripple current circuits.

Q: What is the operating temperature range for both parts?

A: Both parts operate across -40°C to 105°C. Lifetime rating of 7000 hours applies at the maximum operating temperature of 105°C.