LAQ2D331MELZ30 Equivalent & Substitute Parts

Part Overview

The LAQ2D331MELZ30 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 with 10 mm lead spacing and 22 mm diameter form factor.

The LAQ2D331MELZ30 remains an active product. Equivalent and substitute parts are identified to support design flexibility, inventory optimization, and long-term supply chain continuity.

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
Lead Spacing	10.00 mm
Package Diameter	22.00 mm
Package Height	32.00 mm
Mounting Type	Through Hole
Package / Case	Radial, Can - Snap-In
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the LAQ2D331MELZ30 are classified based on the following substitution criteria:

Direct Equivalents maintain identical electrical specifications (330 µF, 200 V, ±20% tolerance) and mechanical form factor (22 mm diameter, 32 mm height, 10 mm lead spacing, snap-in package). These parts differ only in manufacturer, series designation, or operational lifetime characteristics.

Upgrade Substitutes increase the voltage rating to 250 V while maintaining 330 µF capacitance, ±20% tolerance, and identical mechanical dimensions. These parts provide enhanced voltage margin and are suitable for applications where the original 200 V rating is adequate but higher voltage headroom is beneficial.

All substitute parts maintain:

Capacitance: 330 µF
Tolerance: ±20%
Lead Spacing: 10.00 mm
Package Diameter: 22.00 mm
Package Height: 32.00 mm
Mounting Type: Through Hole, Radial, Can - Snap-In
RoHS3 Compliance

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance	Voltage	Lifetime @ 105°C	Operating Temp Range	Product Status
LAQ2D331MELZ30	Nichicon	LAQ	330 µF	200 V	2000 Hrs	-25°C ~ 105°C	Active
LGR2D331MELZ30	Nichicon	LGR	330 µF	200 V	10000 Hrs	-40°C ~ 105°C	Active
LGN2E331MELZ30	Nichicon	LGN	330 µF	250 V	3000 Hrs	-40°C ~ 105°C	Active
B43504A2337M000	EPCOS - TDK Electronics	B43504	330 µF	200 V	3000 Hrs	-40°C ~ 105°C	Not For New Designs
250MXG330MEFCSN22X30	Rubycon	MXG	330 µF	250 V	3000 Hrs	-25°C ~ 105°C	Active
381LQ331M250H022	Cornell Dubilier Electronics (CDE)	381LQ	330 µF	250 V	2000 Hrs	-40°C ~ 105°C	Active

Engineering Selection Recommendations

LGR2D331MELZ30 (Nichicon) is a direct equivalent with extended operational lifetime (10000 Hrs @ 105°C versus 2000 Hrs). This part is active and suitable for new designs where enhanced reliability and extended service life are required without voltage rating changes.

LGN2E331MELZ30 (Nichicon) is an active upgrade substitute with 250 V rating and extended operating temperature range (-40°C to 105°C). This part is suitable for applications requiring higher voltage margin or wider temperature operation.

250MXG330MEFCSN22X30 (Rubycon) is an active upgrade substitute with 250 V rating. This part offers high inventory availability and is suitable for applications where voltage upgrade and alternative manufacturer sourcing are acceptable.

381LQ331M250H022 (Cornell Dubilier Electronics) is an active upgrade substitute with 250 V rating and extended operating temperature range. This part is suitable for applications requiring higher voltage margin and alternative manufacturer sourcing.

B43504A2337M000 (EPCOS - TDK Electronics) carries a "Not For New Designs" status and should not be selected for new applications. This part is identified as a historical equivalent only.

Frequently Asked Questions (FAQ)

Q: Can LGR2D331MELZ30 replace LAQ2D331MELZ30 in existing designs?

A: Yes. LGR2D331MELZ30 is a direct equivalent with identical electrical ratings (330 µF, 200 V, ±20%) and mechanical form factor. The extended lifetime (10000 Hrs @ 105°C) and wider operating temperature range (-40°C to 105°C) provide enhanced performance margins without design modification.

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

A: Direct equivalents maintain the original 200 V voltage rating. Upgrade substitutes increase the voltage rating to 250 V while preserving 330 µF capacitance and mechanical dimensions. Upgrade substitutes are suitable when higher voltage headroom is beneficial or when the original 200 V rating is adequate.

Q: Are all substitute parts mechanically compatible with the original LAQ2D331MELZ30?

A: Yes. All substitute parts maintain identical lead spacing (10.00 mm), package diameter (22.00 mm), package height (32.00 mm), and snap-in mounting configuration. PCB layout and mechanical assembly require no modification.

Q: Why is B43504A2337M000 marked "Not For New Designs"?

A: This part carries a product lifecycle status indicating it is not recommended for new design implementations. Existing inventory may be used for legacy system support, but active alternatives should be selected for new applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain RoHS3 compliance, consistent with the original LAQ2D331MELZ30.

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