LAK2D331MELA30 Equivalent & Substitute Parts

Part Overview

The LAK2D331MELA30 is a 330 µF, 200 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Nichicon. 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 delivers 2000 hours of rated lifetime at 105°C with operating temperature range from -25°C to 105°C.

Equivalent and substitute parts become necessary when the original manufacturer discontinues production, inventory becomes unavailable, or design requirements necessitate enhanced performance characteristics such as higher voltage ratings or extended operational lifetime.

Substiute Parts

LAK2D331MELA30

NichiconIn Stock: 749LAK2D331MELA30 Datasheet

Current PartRFQ

B43504C2337M000

EPCOS - TDK ElectronicsIn Stock: 1337B43504C2337M000 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the LAK2D331MELA30 is determined by strict equivalence in the following parameters:

• Capacitance value: 330 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Package type: Radial, Can - Snap-In (exact match required)
• Lead spacing: 0.394" (10.00mm) (exact match required)
• Physical dimensions: 0.984" Dia × 1.260" Height (exact match required)
• Mounting type: Through Hole (exact match required)
• Polarization: Polar (exact match required)

Substitute parts may exceed the rated voltage and operational lifetime specifications of the original part, provided all mechanical and electrical compatibility parameters remain within the specified tolerances. Voltage derating and extended lifetime represent performance enhancements rather than deviations from the original specification.

Parameter Comparison

Engineering Selection Recommendations

The B43504C2337M000 substitute part is mechanically and electrically compatible with the LAK2D331MELA30 across all critical parameters. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

The substitute part provides enhanced performance characteristics: 250 V rated voltage (50 V higher than the original specification) and 3000 hours operational lifetime at 105°C (1000 hours longer than the original specification). These enhancements provide additional design margin without introducing compatibility issues.

The B43504C2337M000 carries a product status designation of "Not For New Designs," indicating that EPCOS - TDK Electronics does not recommend this part for new circuit designs. For applications requiring long-term supply assurance and active manufacturer support, the LAK2D331MELA30 remains the preferred selection. For existing designs or applications where extended operational lifetime and higher voltage margin are beneficial, the B43504C2337M000 provides a direct mechanical and electrical substitute.

Frequently Asked Questions (FAQ)

Q: Can the B43504C2337M000 be used as a direct replacement for the LAK2D331MELA30 in existing circuit designs?

A: Yes. Both parts share identical capacitance (330 µF), tolerance (±20%), physical dimensions (0.984" diameter, 1.260" height), lead spacing (10.00mm), and package type (radial, can snap-in). Mechanical and electrical compatibility is confirmed across all specified parameters.

Q: What are the differences between these two parts?

A: The B43504C2337M000 provides three performance enhancements: rated voltage of 250 V versus 200 V, operational lifetime of 3000 hours at 105°C versus 2000 hours, and extended lower temperature operating range (-40°C versus -25°C). These represent performance improvements rather than deviations from the original specification.

Q: Does the higher voltage rating of the substitute part affect circuit operation?

A: No. A capacitor with higher voltage rating operates identically to one with lower voltage rating when both are operated below their respective voltage limits. The 250 V rating of the substitute part provides additional design margin without altering electrical behavior in the circuit.

Q: Are both parts RoHS compliant?

A: Yes. Both the LAK2D331MELA30 and B43504C2337M000 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What does "Not For New Designs" mean for the substitute part?

A: This designation indicates that the manufacturer (EPCOS - TDK Electronics) does not recommend the B43504C2337M000 for new circuit designs. The part remains available and functional for existing applications and replacement purposes, but the manufacturer may discontinue production without advance notice. For new designs requiring long-term supply assurance, the LAK2D331MELA30 (Active status) is the recommended selection.

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

A: Yes. Identical lead spacing (10.00mm), physical dimensions, and snap-in package configuration ensure that both parts fit the same PCB footprint and assembly process without modification.