LQSW6221MELB30 Equivalent & Substitute Parts

Part Overview

The LQSW6221MELB30 is a 220 µF, 420 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Nichicon. This component is rated for 3000 hours at 105°C and is designed for general purpose applications requiring through-hole mounting. The part is active and ROHS3 compliant.

Substitute parts are necessary when the original LQSW6221MELB30 becomes unavailable, when higher voltage ratings or extended lifetime specifications are required, or when alternative manufacturer sourcing is needed for supply chain optimization.

Substiute Parts

LQSW6221MELB30

NichiconIn Stock: 273937LQSW6221MELB30 Datasheet

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LGN2W221MELB30

NichiconIn Stock: 10711LGN2W221MELB30 Datasheet

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450VXG220MEFCSN30X30

RubyconIn Stock: 1181450VXG220MEFCSN30X30 Datasheet

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450VXH220MEFCSN30X30

RubyconIn Stock: 273841450VXH220MEFCSN30X30 Datasheet

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B43644B5227M007

EPCOS - TDK ElectronicsIn Stock: 1077B43644B5227M007 Datasheet

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ELXS451VSN221MR30S

Chemi-ConIn Stock: 2153ELXS451VSN221MR30S Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LQSW6221MELB30 is determined by the following criteria:

Mandatory Parameters (Must Match):

• Capacitance: 220 µF
• Tolerance: ±20%
• Package / Case: Radial, Can - Snap-In
• Lead Spacing: 0.394" (10.00mm)
• Size / Dimension: 1.181" Dia (30.00mm)
• Mounting Type: Through Hole
• Operating Temperature Range: -25°C ~ 105°C (minimum)

Allowable Variation Parameters:

• Voltage - Rated: 420 V or higher (substitutes rated at 450 V are acceptable as they provide voltage margin)
• Lifetime @ Temperature: 3000 Hrs @ 105°C or longer (extended lifetime is acceptable)
• Height - Seated (Max): 1.260" (32.00mm) to 1.280" (32.50mm) (minor variation acceptable within mechanical constraints)
• Ripple Current @ Low Frequency: 1.05 A @ 120 Hz or higher (increased ripple current capability is acceptable)

All substitute parts listed meet these criteria and are electrically and mechanically compatible with the original LQSW6221MELB30.

Parameter Comparison

Engineering Selection Recommendations

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

LGN2W221MELB30 (Nichicon): Direct manufacturer upgrade from Nichicon with identical electrical specifications except for 30 V higher voltage rating. Maintains 3000-hour lifetime specification. Suitable for direct replacement with enhanced voltage margin.

450VXG220MEFCSN30X30 (Rubycon): Provides 450 V rating with extended 5000-hour lifetime and increased ripple current capability (1.32 A @ 120 Hz). Represents performance upgrade with improved thermal endurance.

450VXH220MEFCSN30X30 (Rubycon): Highest ripple current rating among substitutes (1.36 A @ 120 Hz) with 5000-hour lifetime and 450 V rating. Suitable for applications requiring maximum current handling capacity.

B43644B5227M007 (EPCOS - TDK Electronics): Extended operating temperature range (-40°C ~ 105°C) with 450 V rating and 5000-hour lifetime. Specified ESR of 460 mOhm @ 100 Hz. Suitable for applications requiring lower temperature operation.

ELXS451VSN221MR30S (Chemi-Con): 450 V rating with 5000-hour lifetime and 1.18 A ripple current @ 120 Hz. Height specification of 1.280" (32.50mm) represents maximum allowable variation. Suitable for general replacement with extended lifetime.

Frequently Asked Questions (FAQ)

Q: Can I use a 450 V rated capacitor in place of the 420 V LQSW6221MELB30?

A: Yes. All substitute parts are rated at 450 V, which exceeds the original 420 V specification. Higher voltage ratings provide additional safety margin and are electrically compatible.

Q: What is the difference between the 3000-hour and 5000-hour lifetime specifications?

A: Lifetime rating indicates the expected operational duration at maximum rated temperature (105°C). The 5000-hour rated substitutes provide extended service life under thermal stress compared to the 3000-hour original specification.

Q: Are all substitute parts mechanically identical to the LQSW6221MELB30?

A: Substitute parts share identical lead spacing (10.00mm), diameter (30.00mm), and mounting type (through-hole, snap-in). The ELXS451VSN221MR30S has a maximum seated height of 1.280" (32.50mm) versus 1.260" (32.00mm) for the original, representing a 0.5mm variation that remains within typical PCB design tolerances.

Q: Which substitute offers the best ripple current performance?

A: The 450VXH220MEFCSN30X30 provides the highest ripple current rating at 1.36 A @ 120 Hz, followed by 450VXG220MEFCSN30X30 at 1.32 A @ 120 Hz.

Q: Can I use the B43644B5227M007 in low-temperature applications?

A: Yes. The B43644B5227M007 is rated for -40°C ~ 105°C operating temperature range, extending 15°C lower than the original specification of -25°C ~ 105°C.

Q: Are all substitute parts ROHS3 compliant?

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