ALC80D331CB250 Equivalent & Substitute Parts

Part Overview

The ALC80D331CB250 is a 330 µF, 250 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 stable capacitance and extended operational life at elevated temperatures. The part operates across a temperature range of -40°C to 105°C with a rated lifetime of 7000 hours at 105°C.

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

ALC80D331CB250

KEMETIn Stock: 273880ALC80D331CB250 Datasheet

Current PartRFQ

ALC80A331CB250

KEMETIn Stock: 273934ALC80A331CB250 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 Exactly):

• Capacitance value: 330 µF
• Rated voltage: 250 V
• Tolerance: ±20%
• Operating temperature range: -40°C to 105°C
• Lifetime specification: 7000 Hrs @ 105°C

Mechanical Parameters (Must Match Exactly):

• Package type: Radial, Can - Snap-In
• Lead spacing: 0.394" (10.00 mm)
• Physical dimensions: 1.181" Dia (30.00 mm), Height 1.260" (32.00 mm) maximum
• Mounting type: Through Hole

Performance Parameters (Must Match or Exceed):

• ESR @ 100Hz: 524 mOhm (substitute must not exceed this value)
• Ripple current ratings at specified frequencies
• Impedance characteristics

The substitute part ALC80A331CB250 meets all substitution criteria through identical electrical specifications, mechanical compatibility, and equivalent performance characteristics within the allowed parameter tolerances.

Parameter Comparison

Engineering Selection Recommendations

Both ALC80D331CB250 and ALC80A331CB250 are Active product status components manufactured by KEMET within the ALC80 series. Selection between these parts is based on availability and inventory status rather than technical differentiation.

Compliance Considerations: Both parts maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for applications subject to these standards.

Electrical Performance: The ESR values differ by 0.1 mOhm (524 mOhm versus 523.9 mOhm), representing negligible variance within manufacturing tolerances and application requirements. All other electrical parameters, including ripple current ratings and impedance characteristics, are identical.

Mechanical Compatibility: Both parts share identical mechanical specifications, including lead spacing, physical dimensions, and snap-in package configuration. Direct substitution in existing PCB layouts and mechanical assemblies is supported without modification.

Selection Basis: Component selection should be determined by current inventory availability and supply chain lead times. Both parts are functionally and mechanically interchangeable for all applications requiring 330 µF, 250 V aluminum electrolytic capacitors with the specified performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can ALC80A331CB250 be used as a direct replacement for ALC80D331CB250?

A: Yes. Both parts are identical in electrical performance, mechanical dimensions, and package configuration. The ESR variance of 0.1 mOhm is within manufacturing tolerance and does not affect circuit performance.

Q: Are there any PCB layout modifications required when substituting between these parts?

A: No. Both parts use identical lead spacing (0.394" / 10.00 mm), diameter (1.181" / 30.00 mm), and height specifications (1.260" / 32.00 mm maximum). PCB footprints and mechanical mounting provisions require no modification.

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

A: Yes. Both ALC80D331CB250 and ALC80A331CB250 are ROHS3 compliant and REACH Unaffected, satisfying equivalent regulatory requirements.

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

A: The ESR difference of 0.1 mOhm (524 mOhm versus 523.9 mOhm) is negligible and falls within normal manufacturing variation for aluminum electrolytic capacitors. This variance does not impact circuit performance or ripple current handling capability.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both parts operate across -40°C to 105°C with identical 7000-hour lifetime rating at 105°C, supporting equivalent thermal performance requirements.

Q: What determines whether a part can substitute for ALC80D331CB250?

A: Substitution requires exact matching of capacitance (330 µF), rated voltage (250 V), tolerance (±20%), operating temperature range (-40°C to 105°C), lifetime specification (7000 Hrs @ 105°C), and mechanical package configuration (Radial, Can - Snap-In with specified lead spacing and dimensions). ESR and ripple current specifications must meet or exceed the original part requirements.