ALC80D271EB450 Equivalent & Substitute Parts

Part Overview

The ALC80D271EB450 is a 270 µF, 450 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 is ROHS3 compliant and REACH unaffected, meeting current environmental regulations.

Substitute parts are identified when equivalent electrical and mechanical parameters allow direct replacement in circuit applications without functional degradation. Substitution becomes necessary due to inventory availability, supply chain optimization, or manufacturing discontinuation of specific variants within the same product series.

Substiute Parts

ALC80D271EB450

KEMETIn Stock: 755ALC80D271EB450 Datasheet

Current PartRFQ

ALC80A271EB450

KEMETIn Stock: 958ALC80A271EB450 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALC80D271EB450 is based on strict equivalence of the following critical parameters:

Electrical Parameters:

• Capacitance value: 270 µF (exact match required)
• Rated voltage: 450 V (exact match required)
• Tolerance: ±20% (exact match required)
• ESR @ 100Hz: within acceptable range (495.7 to 496 mOhm)
• Lifetime @ 105°C: 9000 Hrs (exact match required)
• Operating temperature range: -40°C to 105°C (exact match required)
• Ripple current specifications: 1.96 A @ 100 Hz and 4.99 A @ 10 kHz (exact match required)

Mechanical Parameters:

• Lead spacing: 10.00 mm (exact match required)
• Diameter: 40.00 mm (exact match required)
• Height - Seated (Max): 32.00 mm (exact match required)
• Mounting type: Through Hole (exact match required)
• Package / Case: Radial, Can - Snap-In (exact match required)

Compliance Parameters:

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

The substitute part ALC80A271EB450 meets all specified criteria and is therefore classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the ALC80D271EB450 and ALC80A271EB450 are Active status products manufactured by KEMET within the ALC80 series. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying current environmental and regulatory requirements for electronic component procurement.

The ALC80A271EB450 substitute part demonstrates electrical and mechanical equivalence across all specified parameters. The ESR variance of 0.3 mOhm between the main part and substitute falls within normal manufacturing tolerances for aluminum electrolytic capacitors and does not affect functional performance in general purpose applications.

Selection between these parts should be based on inventory availability and supply chain requirements, as both parts are functionally interchangeable for circuit applications requiring 270 µF, 450 V aluminum electrolytic capacitors with snap-in mounting configuration.

Frequently Asked Questions (FAQ)

Q: Can ALC80A271EB450 be used as a direct replacement for ALC80D271EB450?

A: Yes. The ALC80A271EB450 is a parametric equivalent with identical electrical ratings, mechanical dimensions, and compliance certifications. Direct substitution is supported for all general purpose applications.

Q: What is the significance of the ESR difference between the two parts?

A: The ESR (Equivalent Series Resistance) difference of 0.3 mOhm between ALC80D271EB450 (496 mOhm) and ALC80A271EB450 (495.7 mOhm) is negligible and falls within standard manufacturing tolerances for aluminum electrolytic capacitors. This variance does not impact circuit performance.

Q: Are the physical dimensions identical between both parts?

A: Yes. Both parts share identical mechanical specifications: 40.00 mm diameter, 32.00 mm maximum seated height, and 10.00 mm lead spacing. Both use radial, can snap-in package configuration with through-hole mounting.

Q: Do both parts meet the same environmental and regulatory standards?

A: Yes. Both ALC80D271EB450 and ALC80A271EB450 are ROHS3 compliant and REACH unaffected, meeting current environmental regulations for electronic component manufacturing and procurement.

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

A: Both parts operate across the identical temperature range of -40°C to 105°C with a rated lifetime of 9000 hours at 105°C.

Q: Are the ripple current ratings the same for both parts?

A: Yes. Both parts support identical ripple current specifications: 1.96 A at 100 Hz and 4.99 A at 10 kHz.

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

A: Yes. The identical lead spacing (10.00 mm), diameter (40.00 mm), and height (32.00 mm) ensure mechanical and electrical compatibility with existing PCB layouts designed for either part number.