KEMET ALC70D561DF450 Equivalent & Substitute Parts

Part Overview

The KEMET ALC70D561DF450 is a 560 µF, 450 V aluminum electrolytic capacitor in radial, can snap-in package configuration. 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 are maintained within the allowed specifications for this aluminum electrolytic capacitor category. Substitution becomes necessary due to inventory availability, supply chain considerations, or design flexibility within the same performance envelope.

Substiute Parts

ALC70D561DF450

KEMETIn Stock: 1168ALC70D561DF450 Datasheet

Current PartRFQ

ALC10A561DF450

KEMETIn Stock: 822ALC10A561DF450 Datasheet

Parametric EquivalentRFQ

ALC70A561DF450

KEMETIn Stock: 1573ALC70A561DF450 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ALC70D561DF450 are identified based on strict equivalence of the following critical parameters:

Electrical Equivalence Criteria:

• Capacitance: 560 µF (exact match required)
• Voltage Rating: 450 V (exact match required)
• Tolerance: ±20% (exact match required)
• Operating Temperature Range: -40°C to 85°C (exact match required)
• Lifetime: 15000 Hrs @ 85°C (exact match required)
• Polarization: Polar (exact match required)

Mechanical Equivalence Criteria:

• Package Type: Radial, Can - Snap-In (exact match required)
• Lead Spacing: 10.00 mm (exact match required)
• Diameter: 35.00 mm (exact match required)
• Height - Seated (Max): 52.00 mm (exact match required)
• Mounting Type: Through Hole (exact match required)

Compliance Equivalence Criteria:

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

Substitute parts may vary in ESR, impedance, and ripple current specifications within the allowed performance envelope for this capacitor category. These variations do not preclude substitution when all electrical, mechanical, and compliance parameters match exactly.

Parameter Comparison

Engineering Selection Recommendations

All three parts—ALC70D561DF450, ALC10A561DF450, and ALC70A561DF450—are Active status products manufactured by KEMET and meet ROHS3 compliance and REACH unaffected requirements. Selection among these parts is based on the following engineering considerations:

ALC70D561DF450 (Primary Part): This part maintains 253 mOhm ESR @ 100Hz and 143 mOhms impedance, with ripple current capability of 2.8 A @ 100 Hz and 6.45 A @ 10 kHz. Current inventory is 1076 pieces.

ALC70A561DF450 (Preferred Substitute): This part is electrically and mechanically identical to the primary part, with matching ESR of 253 mOhm @ 100Hz and impedance of 143 mOhms. Ripple current specifications are identical. This part belongs to the same ALC70 series and offers the highest inventory availability at 1544 pieces. This part is the direct functional equivalent.

ALC10A561DF450 (Alternative Substitute): This part meets all electrical, mechanical, and compliance requirements. However, it exhibits higher ESR at 266 mOhm @ 100Hz and higher impedance at 172 mOhms compared to the primary part. Ripple current capability is reduced to 2.7 A @ 100 Hz and 4.74 A @ 10 kHz. This part belongs to the ALC10 series and has inventory of 794 pieces. Selection of this part is appropriate when primary and preferred substitute parts are unavailable.

Frequently Asked Questions (FAQ)

Q: Can ALC70A561DF450 be used as a direct replacement for ALC70D561DF450?

A: Yes. The ALC70A561DF450 is a direct functional equivalent. Both parts share identical capacitance (560 µF), voltage rating (450 V), tolerance (±20%), ESR (253 mOhm @ 100Hz), impedance (143 mOhms), ripple current specifications, mechanical dimensions, and compliance certifications. The parts are interchangeable in circuit applications.

Q: What are the differences between ALC10A561DF450 and ALC70D561DF450?

A: The ALC10A561DF450 differs in three performance parameters: ESR is 266 mOhm @ 100Hz (versus 253 mOhm), impedance is 172 mOhms (versus 143 mOhms), and ripple current at 10 kHz is 4.74 A (versus 6.45 A). All other electrical, mechanical, and compliance parameters are identical. The ALC10A561DF450 belongs to a different series (ALC10 versus ALC70).

Q: Are all three parts mechanically compatible with the same PCB footprint?

A: Yes. All three parts share identical mechanical specifications: 35.00 mm diameter, 52.00 mm maximum seated height, 10.00 mm lead spacing, radial can snap-in package, and through-hole mounting type. PCB layout and mounting hardware are compatible across all three parts.

Q: Which part should be selected if all three are available?

A: Selection priority is based on application ripple current requirements and series preference. For applications requiring maximum ripple current handling at high frequency (10 kHz), select ALC70D561DF450 or ALC70A561DF450 (both 6.45 A @ 10 kHz). The ALC70A561DF450 is preferred when available due to higher inventory levels. The ALC10A561DF450 is suitable for applications with lower ripple current demands (4.74 A @ 10 kHz maximum).

Q: Do all parts meet current environmental compliance standards?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected, meeting current environmental regulations for electronic component manufacturing and use.

Q: What is the significance of the series designation (ALC70 versus ALC10)?

A: The series designation indicates the product line within KEMET's aluminum electrolytic capacitor portfolio. ALC70 and ALC10 are distinct series with different internal construction and performance characteristics. However, when parametric specifications are identical, parts from different series are functionally equivalent for the specified application.