LAQ2D331MELA25 Equivalent & Substitute Parts

Part Overview

The LAQ2D331MELA25 is a 330 µF, 200 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Nichicon. This component is rated for 2000 hours at 105°C and is designed for general-purpose applications requiring through-hole mounting. The part is active and ROHS3 compliant. Equivalent and substitute parts are identified to support procurement flexibility, extended lead times, or performance requirement upgrades while maintaining mechanical and electrical compatibility within the specified parameter ranges.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	200 V
Tolerance	±20%
Lifetime @ 105°C	2000 Hrs
Operating Temperature Range	-25°C ~ 105°C
Package Type	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00 mm)
Diameter	0.984" (25.00 mm)
Height (Seated Max)	1.063" (27.00 mm)
Mounting Type	Through Hole
Polarization	Polar
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence in the following critical parameters: capacitance (330 µF), tolerance (±20%), package type (radial, can snap-in), mechanical dimensions (0.984" diameter, 1.063" height, 0.394" lead spacing), mounting type (through-hole), and polarization (polar). Voltage rating and lifetime specifications define substitution categories.

Direct substitutes maintain the 200 V voltage rating and are interchangeable without circuit redesign. Upgrade substitutes increase the voltage rating to 250 V, providing enhanced voltage margin while maintaining all other mechanical and electrical parameters. All substitute parts are active, ROHS3 compliant, and manufactured by Nichicon or equivalent qualified suppliers.

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage Rating	Tolerance	Lifetime @ 105°C	Operating Temp Range	Ripple Current @ 120 Hz	Ripple Current @ High Freq	Diameter	Height	Lead Spacing
LAQ2D331MELA25	Nichicon	LAQ	330 µF	200 V	±20%	2000 Hrs	-25°C ~ 105°C	1.2 A	1.44 A @ 10 kHz	0.984"	1.063"	0.394"
LGR2D331MELA25	Nichicon	LGR	330 µF	200 V	±20%	10000 Hrs	-40°C ~ 105°C	1.2 A	1.8 A @ 50 kHz	0.984"	1.063"	0.394"
381LX331M200J012	Cornell Dubilier Electronics (CDE)	381LX	330 µF	200 V	±20%	3000 Hrs	-40°C ~ 105°C	1.2 A	1.7 A @ 20 kHz	0.984"	1.063"	0.394"
LGN2E331MELA25	Nichicon	LGN	330 µF	250 V	±20%	3000 Hrs	-40°C ~ 105°C	1.2 A	1.8 A @ 50 kHz	0.984"	1.063"	0.394"
LGX2E331MELA25	Nichicon	LGX	330 µF	250 V	±20%	5000 Hrs	-25°C ~ 105°C	1.32 A	1.98 A @ 50 kHz	0.984"	1.063"	0.394"

Engineering Selection Recommendations

All listed substitute parts are active products with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements.

For direct substitution at 200 V rating: LGR2D331MELA25 (Nichicon) provides extended lifetime (10000 hours) and wider operating temperature range (-40°C to 105°C) compared to the LAQ2D331MELA25. The 381LX331M200J012 (Cornell Dubilier Electronics) is an alternative from a qualified supplier with equivalent 200 V rating and mechanical compatibility.

For applications requiring voltage margin enhancement: LGN2E331MELA25 and LGX2E331MELA25 (both Nichicon) upgrade the voltage rating to 250 V while maintaining identical mechanical dimensions and capacitance. LGX2E331MELA25 offers the highest lifetime rating (5000 hours) among upgrade options.

Selection should be based on circuit voltage requirements, thermal environment, and application lifetime expectations. All parts maintain identical package footprint and lead spacing for direct PCB compatibility.

Frequently Asked Questions (FAQ)

Q: Can LGR2D331MELA25 be used as a direct replacement for LAQ2D331MELA25?

A: Yes. Both parts share identical capacitance (330 µF), voltage rating (200 V), tolerance (±20%), package type (radial snap-in), and mechanical dimensions. LGR2D331MELA25 provides extended lifetime (10000 hours vs. 2000 hours) and wider operating temperature range (-40°C to 105°C vs. -25°C to 105°C).

Q: What is the difference between direct substitutes and upgrade substitutes?

A: Direct substitutes (LGR2D331MELA25, 381LX331M200J012) maintain the 200 V voltage rating. Upgrade substitutes (LGN2E331MELA25, LGX2E331MELA25) increase the voltage rating to 250 V, providing additional voltage safety margin. All maintain identical mechanical compatibility.

Q: Are the 250 V rated parts (LGN2E331MELA25, LGX2E331MELA25) compatible with circuits designed for 200 V?

A: Yes. A higher voltage-rated capacitor can be used in a circuit designed for lower voltage operation. The 250 V parts are mechanically and electrically compatible with 200 V circuit designs and provide enhanced voltage margin.

Q: Do all substitute parts fit the same PCB footprint?

A: Yes. All parts listed maintain identical lead spacing (0.394" / 10.00 mm), diameter (0.984" / 25.00 mm), and height (1.063" / 27.00 mm). No PCB layout modifications are required for substitution.

Q: What is the significance of the different lifetime ratings?

A: Lifetime rating indicates the expected operational duration at maximum rated temperature (105°C). LAQ2D331MELA25 is rated for 2000 hours, while LGR2D331MELA25 extends to 10000 hours. Selection depends on application thermal environment and required service life.

Q: Are all parts ROHS3 compliant?

A: Yes. All listed parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

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