LGL2W331MELA45 Equivalent & Substitute Parts

Part Overview

The LGL2W331MELA45 is a 330 µF, 450 V aluminum electrolytic capacitor manufactured by Nichicon in a radial, can snap-in package. This component is designed for general-purpose applications requiring high voltage energy storage and filtering. The part is currently active in production with 1,000,100 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to supply constraints, design flexibility, or application-specific needs.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	450 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 105°C
Operating Temperature Range	-25°C ~ 105°C
Lead Spacing	0.394" (10.00 mm)
Package Diameter	0.984" (25.00 mm)
Package Height	1.850" (47.00 mm)
Mounting Type	Through Hole
Package Type	Radial, Can - Snap-In
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the LGL2W331MELA45 is determined by strict equivalence across the following critical parameters:

Capacitance Value: 330 µF (exact match required)
Voltage Rating: 450 V (exact match required)
Tolerance: ±20% (exact match required)
Lifetime Rating: 2000 Hrs @ 105°C (exact match required)
Operating Temperature Range: -25°C ~ 105°C (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Package Dimensions: 0.984" Dia × 1.850" Height (exact match required)
Mounting Type: Through Hole (exact match required)
Package Configuration: Radial, Can - Snap-In (exact match required)
Regulatory Compliance: ROHS3 Compliant (exact match required)

The substitute part PL2W331MND2545Y meets all critical electrical and mechanical parameters, enabling direct functional replacement in applications requiring the LGL2W331MELA45.

Parameter Comparison

Parameter	LGL2W331MELA45 (Nichicon)	PL2W331MND2545Y (Chinsan)	Match Status
Capacitance	330 µF	330 µF	Equivalent
Voltage Rating	450 V	450 V	Equivalent
Tolerance	±20%	±20%	Equivalent
Lifetime @ Temperature	2000 Hrs @ 105°C	2000 Hrs @ 105°C	Equivalent
Operating Temperature	-25°C ~ 105°C	-25°C ~ 105°C	Equivalent
Lead Spacing	0.394" (10.00 mm)	0.394" (10.00 mm)	Equivalent
Package Diameter	0.984" (25.00 mm)	0.984" (25.00 mm)	Equivalent
Package Height	1.850" (47.00 mm)	1.850" (47.00 mm)	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
ESR @ 120 Hz	Not specified	500 mOhm	Substitute specified
Ripple Current @ 120 Hz	1.12 A	1.39 A	Substitute higher
Ripple Current @ High Frequency	1.6016 A @ 50 kHz	1.988 A @ 100 kHz	Substitute higher

Engineering Selection Recommendations

Both the LGL2W331MELA45 and PL2W331MND2545Y are ROHS3 compliant and meet identical electrical and mechanical specifications for the core application parameters. Selection between these parts is based on:

Availability: Choose based on inventory status and supply chain requirements
Manufacturer Preference: LGL2W331MELA45 (Nichicon) or PL2W331MND2545Y (Chinsan)
Performance Margin: The PL2W331MND2545Y provides higher ripple current ratings, offering additional thermal margin in high-ripple applications
Cost Considerations: Evaluate unit pricing and total cost of ownership

Both parts are suitable for direct substitution in through-hole PCB applications requiring 330 µF, 450 V aluminum electrolytic capacitors with snap-in mounting.

Frequently Asked Questions (FAQ)

Q: Can PL2W331MND2545Y replace LGL2W331MELA45 in existing designs?

A: Yes. Both parts share identical capacitance, voltage rating, tolerance, temperature range, lead spacing, and package dimensions. PCB footprints and mounting requirements are identical.

Q: What is the difference in ripple current ratings?

A: The PL2W331MND2545Y has higher ripple current specifications (1.39 A @ 120 Hz and 1.988 A @ 100 kHz) compared to the LGL2W331MELA45 (1.12 A @ 120 Hz and 1.6016 A @ 50 kHz). This provides additional thermal headroom in applications with elevated ripple current demands.

Q: Are both parts RoHS compliant?

A: Yes. Both LGL2W331MELA45 and PL2W331MND2545Y are ROHS3 compliant.

Q: What is the lead spacing for these capacitors?

A: Both parts have a lead spacing of 0.394" (10.00 mm), ensuring compatibility with standard through-hole PCB layouts.

Q: Can these parts be used interchangeably in production?

A: Yes, provided that the higher ripple current capability of the PL2W331MND2545Y does not create design conflicts. Both parts meet the specified electrical and mechanical requirements for general-purpose applications.

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