LAS2W271MELC30 Equivalent & Substitute Parts

Part Overview

The LAS2W271MELC30 is a 270 µF, 450 V aluminum electrolytic capacitor manufactured by Nichicon in the LAS series. This radial, can-style snap-in capacitor is rated for 2000 hours at 105°C and is designed for general-purpose applications requiring high-voltage energy storage and filtering. The part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this capacitor category.

Key Parameters

Parameter	Value
Capacitance	270 µF
Voltage Rating	450 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 105°C
Operating Temperature Range	-25°C ~ 105°C
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Lead Spacing	0.394" (10.00mm)
Diameter	1.378" (35.00mm)
Height (Seated Max)	1.260" (32.00mm)
Polarization	Polar
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the LAS2W271MELC30 are qualified based on the following criteria:

Electrical Equivalence: Capacitance (270 µF), voltage rating (450 V), and tolerance (±20%) must be identical. Operating temperature range (-25°C ~ 105°C) and polarization (Polar) must match.

Mechanical Compatibility: Package type (Radial, Can - Snap-In), mounting type (Through Hole), lead spacing (10.00mm), and physical dimensions (35.00mm diameter) must be identical to ensure direct board-level substitution without layout modifications.

Compliance & Status: All substitute parts must maintain Active product status and ROHS3 compliance to ensure supply chain continuity and regulatory alignment.

Performance Characteristics: Ripple current ratings and lifetime specifications may vary within the allowed parameter set for this product category, provided the minimum lifetime requirement of 2000 hours at 105°C is met or exceeded.

Parameter Comparison

Parameter	LAS2W271MELC30 (Nichicon)	450MXH270MEFCSN35X25 (Rubycon)	450VXH270MEFCSN35X30 (Rubycon)
Manufacturer	Nichicon	Rubycon	Rubycon
Series	LAS	MXH	VXH
Capacitance	270 µF	270 µF	270 µF
Voltage Rating	450 V	450 V	450 V
Tolerance	±20%	±20%	±20%
Lifetime @ 105°C	2000 Hrs	2000 Hrs	5000 Hrs
Operating Temperature	-25°C ~ 105°C	-25°C ~ 105°C	-25°C ~ 105°C
Ripple Current @ 120 Hz	1.3 A	1.33 A	1.48 A
Ripple Current @ 10 kHz	1.495 A	1.862 A	2.072 A
Lead Spacing	10.00mm	10.00mm	10.00mm
Diameter	35.00mm	35.00mm	35.00mm
Height (Seated Max)	32.00mm	27.00mm	32.00mm
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Mounting Type	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active

Engineering Selection Recommendations

Both substitute parts maintain full electrical and mechanical compatibility with the LAS2W271MELC30 and are suitable for direct replacement in applications requiring 270 µF, 450 V aluminum electrolytic capacitors with snap-in mounting.

450MXH270MEFCSN35X25 (Rubycon MXH Series): This substitute provides equivalent performance with a reduced seated height of 27.00mm compared to the original 32.00mm. This dimensional difference may be advantageous in space-constrained applications. Ripple current ratings are comparable to the main part. Product status is Active with ROHS3 compliance.

450VXH270MEFCSN35X30 (Rubycon VXH Series): This substitute offers extended lifetime of 5000 hours at 105°C, exceeding the 2000-hour specification of the main part. Physical dimensions match the original part exactly (32.00mm height). Ripple current ratings are higher across both frequency ranges. Product status is Active with ROHS3 compliance.

Both substitutes are qualified for general-purpose applications and maintain the same operating temperature range, polarization, and lead spacing as the original part.

Frequently Asked Questions (FAQ)

Q: Can the 450MXH270MEFCSN35X25 be used as a direct replacement for the LAS2W271MELC30?

A: Yes. The 450MXH270MEFCSN35X25 meets all electrical specifications (270 µF, 450 V, ±20% tolerance) and mechanical requirements (10.00mm lead spacing, 35.00mm diameter, snap-in package). The reduced height of 27.00mm versus 32.00mm allows installation in space-constrained layouts without electrical performance impact.

Q: What is the advantage of the 450VXH270MEFCSN35X30 over the main part?

A: The 450VXH270MEFCSN35X30 provides 5000 hours of lifetime at 105°C, compared to 2000 hours for the LAS2W271MELC30. This extended rating is beneficial for applications requiring higher reliability or longer service intervals. Physical dimensions are identical, ensuring seamless board-level substitution.

Q: Are all three parts mechanically interchangeable?

A: The 450VXH270MEFCSN35X30 is fully interchangeable with identical dimensions. The 450MXH270MEFCSN35X25 has a reduced height (27.00mm vs. 32.00mm) but maintains the same lead spacing and diameter, allowing installation in most applications. Verify clearance in height-constrained designs.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All three parts are ROHS3 compliant, Active status, and rated for the same operating temperature range (-25°C ~ 105°C). Compliance certifications are equivalent across all options.

Q: Can ripple current differences affect part selection?

A: Ripple current ratings are provided for reference. All parts meet or exceed the ripple current requirements for general-purpose applications at the specified frequencies (120 Hz and 10 kHz). Selection should be based on application-specific ripple current demands.

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