SLP221M350A4P3 Equivalent & Substitute Parts

Part Overview

The SLP221M350A4P3 is a 220 µF, 350 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can snap-in package. This component is classified as Active and is designed for general-purpose applications requiring reliable energy storage and filtering in power supply circuits. The part operates across a temperature range of -25°C to 105°C with a rated lifetime of 3000 hours at 105°C.

Substitute parts are identified when equivalent capacitance, tolerance, physical dimensions, mounting configuration, and operational temperature range align with the original specification, while voltage rating may be upgraded to provide enhanced design margin and reliability in demanding applications.

Substiute Parts

SLP221M350A4P3

Cornell Dubilier Electronics (CDE)In Stock: 1108SLP221M350A4P3 Datasheet

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400MXG220MEFCSN22X45

RubyconIn Stock: 1167400MXG220MEFCSN22X45 Datasheet

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LGN2G221MELZ45

NichiconIn Stock: 894LGN2G221MELZ45 Datasheet

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LQS2G221MELZ45

NichiconIn Stock: 874LQS2G221MELZ45 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SLP221M350A4P3 are qualified based on the following criteria:

Mandatory Matching Parameters:

• Capacitance: 220 µF (exact match)
• Tolerance: ±20% (exact match)
• Operating Temperature Range: -25°C to 105°C (exact match)
• Lifetime @ Temperature: 3000 Hrs @ 105°C (exact match)
• Lead Spacing: 0.394" (10.00 mm) (exact match)
• Size / Dimension: 0.866" Dia (22.00 mm) (exact match)
• Height - Seated (Max): 1.850" (47.00 mm) (exact match)
• Package / Case: Radial, Can - Snap-In (exact match)
• Mounting Type: Through Hole (exact match)
• Polarization: Polar (exact match)

Allowable Variation:

• Voltage - Rated: Substitutes rated at 400 V are acceptable for applications originally specified at 350 V, providing increased voltage margin and design safety.

Compliance Requirements:

• RoHS3 Compliant (all substitutes)
• REACH Unaffected (all substitutes)
• Active product status (all substitutes)

Three substitute parts meet these criteria: 400MXG220MEFCSN22X45 (Rubycon), LGN2G221MELZ45 (Nichicon), and LQS2G221MELZ45 (Nichicon).

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are Active products with ROHS3 compliance and REACH Unaffected status, meeting regulatory requirements equivalent to the original SLP221M350A4P3.

400MXG220MEFCSN22X45 (Rubycon MXG Series): This substitute provides a 400 V rated voltage with increased ripple current capability at both low frequency (1.44 A @ 120 Hz) and high frequency (2.016 A @ 10 kHz) compared to the original part. The higher voltage rating and enhanced ripple current performance support applications requiring greater thermal and electrical stress tolerance.

LGN2G221MELZ45 (Nichicon LGN Series): This substitute offers 400 V rated voltage with ripple current specifications of 1.1 A @ 120 Hz and 1.573 A @ 50 kHz. The LGN series provides a voltage upgrade while maintaining compatibility with the original mechanical and electrical envelope.

LQS2G221MELZ45 (Nichicon LQS Series): This substitute provides 400 V rated voltage with ripple current specifications of 1.1 A @ 120 Hz and 1.43 A @ 50 kHz. The LQS series delivers equivalent performance characteristics to the LGN series with the same voltage upgrade benefit.

All substitutes maintain identical physical dimensions, lead spacing, and mounting configuration, ensuring direct mechanical compatibility with existing PCB layouts and mechanical assemblies designed for the SLP221M350A4P3.

Frequently Asked Questions (FAQ)

Q: Can the 400 V rated substitute parts be used in place of the 350 V original part?

A: Yes. A higher voltage rating provides increased design margin and does not compromise circuit functionality. The 400 V substitutes operate safely in applications specified for 350 V operation.

Q: Are the substitute parts mechanically identical to the SLP221M350A4P3?

A: Yes. All substitute parts share identical lead spacing (0.394" / 10.00 mm), can diameter (0.866" / 22.00 mm), seated height (1.850" / 47.00 mm), and snap-in mounting configuration. Direct PCB mounting compatibility is maintained.

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

A: Yes. All substitute parts are ROHS3 Compliant and REACH Unaffected, matching the regulatory status of the SLP221M350A4P3.

Q: What is the difference between the Rubycon and Nichicon substitute options?

A: The Rubycon 400MXG220MEFCSN22X45 provides higher ripple current ratings (1.44 A @ 120 Hz and 2.016 A @ 10 kHz) compared to the Nichicon LGN and LQS series (1.1 A @ 120 Hz). Selection depends on application ripple current requirements. Both Nichicon options (LGN and LQS) deliver equivalent performance characteristics.

Q: Is the ±20% capacitance tolerance maintained across all substitute parts?

A: Yes. All substitute parts maintain ±20% capacitance tolerance, identical to the original SLP221M350A4P3.

Q: Do the substitute parts support the same operating temperature range?

A: Yes. All substitute parts operate across -25°C to 105°C with 3000 hours lifetime at 105°C, matching the original specification.

Q: Can substitute parts be mixed in the same circuit or assembly?

A: Yes. All substitute parts meet identical electrical and mechanical specifications for the 220 µF, 400 V, ±20% tolerance category. Interchangeability is confirmed across all three substitute options.