ALC70D331EF600 Equivalent & Substitute Parts

Part Overview

The ALC70D331EF600 is a 330 µF, 600 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.

Identifying equivalent and substitute parts is necessary when the primary part number becomes unavailable, when inventory constraints require alternative sourcing, or when design flexibility permits selection from qualified alternatives that maintain identical electrical and mechanical performance characteristics.

Substiute Parts

ALC70D331EF600

KEMETIn Stock: 1074ALC70D331EF600 Datasheet

Current PartRFQ

ALC70A331EF600

KEMETIn Stock: 1568ALC70A331EF600 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of aluminum electrolytic capacitors is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Capacitance value: 330 µF
• Rated voltage: 600 V
• Tolerance: ±20%
• Lifetime specification: 18000 Hrs @ 85°C
• Operating temperature range: -40°C to 85°C

Mechanical Parameters (Must Match):

• Package type: Radial, Can - Snap-In
• Lead spacing: 10.00 mm
• Physical dimensions: 40.00 mm diameter, 52.00 mm height (seated max)
• Mounting type: Through Hole

Performance Parameters (Must Match):

• Ripple current ratings at both 100 Hz and 10 kHz
• ESR characteristics within acceptable tolerance

The substitute part ALC70A331EF600 meets all critical parameters and is therefore classified as a parametric equivalent. Both parts are manufactured by KEMET within the same ALC70 series family, share identical electrical specifications, and are mechanically interchangeable in through-hole applications.

Parameter Comparison

Engineering Selection Recommendations

Both ALC70D331EF600 and ALC70A331EF600 are Active product status components manufactured by KEMET and are fully compliant with ROHS3 and REACH regulations. The parts are electrically and mechanically interchangeable for all through-hole applications requiring 330 µF, 600 V aluminum electrolytic capacitors with snap-in mounting.

Selection between these parts may be based on inventory availability. The ALC70A331EF600 currently maintains higher inventory levels (1485 Pcs) compared to the ALC70D331EF600 (1009 Pcs), which may influence procurement decisions when both parts are functionally equivalent.

The ESR values are effectively equivalent (397 mOhm vs. 396.9 mOhm), representing negligible variation within the tolerance specifications of aluminum electrolytic capacitor manufacturing.

Frequently Asked Questions (FAQ)

Q: Are ALC70D331EF600 and ALC70A331EF600 directly interchangeable?

A: Yes. Both parts are parametric equivalents with identical capacitance (330 µF), voltage rating (600 V), tolerance (±20%), lifetime (18000 Hrs @ 85°C), operating temperature range (-40 to 85°C), and mechanical dimensions. They are directly interchangeable in through-hole applications.

Q: What is the difference between the ALC70D and ALC70A base product numbers?

A: The base product numbers indicate different internal design variants within the ALC70 series. However, for the 330 µF, 600 V specification, both variants deliver identical electrical performance and mechanical compatibility.

Q: Can these parts be used in surface-mount applications?

A: No. Both parts are classified as Through Hole mounting type with radial, can snap-in packages. They are designed for through-hole PCB assembly only.

Q: What is the significance of the snap-in package type?

A: The snap-in package indicates that the component uses a mechanical locking mechanism for secure mounting on the PCB. This design is common in high-voltage, high-capacitance aluminum electrolytic capacitors and provides reliable retention during assembly and operation.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts carry identical ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements for electronic components.

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

A: The capacitance value may vary by up to 20% above or below the nominal 330 µF specification. For this part, the actual capacitance range is 264 µF to 396 µF. Both substitute parts share this identical tolerance specification.

Q: How do the ripple current ratings affect component selection?

A: Ripple current ratings define the maximum AC current the capacitor can safely handle at specified frequencies without exceeding temperature limits. Both parts support identical ripple current values (2.75 A @ 100 Hz and 5.69 A @ 10 kHz), ensuring equivalent performance in filtering and energy storage applications.