SLPX331M420E5P3 Equivalent & Substitute Parts

Part Overview

The SLPX331M420E5P3 is a 330 µF, 420 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can snap-in package. This component is classified as Active product status and is designed for general-purpose applications requiring high-voltage energy storage and filtering. The part operates across a temperature range of -25°C to 85°C with a rated lifetime of 3000 hours at 85°C. Substitute parts are identified when equivalent capacitance, voltage rating, tolerance, package configuration, and mounting type align with the original specification, enabling direct replacement in circuit designs.

Substiute Parts

SLPX331M420E5P3

Cornell Dubilier Electronics (CDE)In Stock: 1022SLPX331M420E5P3 Datasheet

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450USG330MEFCSN30X35

RubyconIn Stock: 1273450USG330MEFCSN30X35 Datasheet

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LQSW6331MELB35

NichiconIn Stock: 273932LQSW6331MELB35 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SLPX331M420E5P3 are qualified based on the following criteria:

Primary Matching Parameters:

• Capacitance: 330 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Package / Case: Radial, Can - Snap-In (exact match required)
• Mounting Type: Through Hole (exact match required)
• Lead Spacing: 10.00 mm (exact match required)
• Physical Dimensions: 30.00 mm diameter, 37.00 mm height maximum (exact match required)
• Polarization: Polar (exact match required)

Acceptable Variation Parameters:

• Voltage - Rated: Equal to or greater than 420 V
• Operating Temperature: Equal to or greater than the specified range
• Lifetime @ Temp.: Equal to or greater than 3000 hours at rated temperature
• ESR (Equivalent Series Resistance): Provided when available; not a disqualifying factor
• Ripple Current: Provided when available; not a disqualifying factor

Compliance Requirements:

• RoHS Status: ROHS3 Compliant (required)
• REACH Status: REACH Unaffected (required)
• Product Status: Active (required)

Two substitute parts meet these criteria: LQSW6331MELB35 (Nichicon) and 450USG330MEFCSN30X35 (Rubycon).

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts satisfy the mandatory substitution criteria for the SLPX331M420E5P3:

LQSW6331MELB35 (Nichicon LQS Series): This substitute maintains the 420 V voltage rating of the original part while extending the operating temperature range to 105°C and providing a lifetime rating of 3000 hours at 105°C. The part is ROHS3 compliant and REACH unaffected with Active product status. The Nichicon LQS series offers enhanced thermal performance compared to the original specification. Inventory availability is 273,882 pieces.

450USG330MEFCSN30X35 (Rubycon USG Series): This substitute provides a higher voltage rating of 450 V, exceeding the original 420 V specification. The operating temperature range matches the original at -25°C to 85°C with a 3000-hour lifetime at 85°C. The part is ROHS3 compliant and REACH unaffected with Active product status. The elevated voltage rating provides additional design margin in high-voltage applications. Inventory availability is 1,246 pieces.

Both parts are mechanically and electrically compatible with the original SLPX331M420E5P3 for direct circuit board replacement.

Frequently Asked Questions (FAQ)

Q: Can LQSW6331MELB35 be used as a direct replacement for SLPX331M420E5P3?

A: Yes. Both parts share identical capacitance (330 µF), tolerance (±20%), voltage rating (420 V), package configuration (Radial, Can - Snap-In), mounting type (Through Hole), lead spacing (10.00 mm), and physical dimensions (30.00 mm diameter, 37.00 mm height). The Nichicon part extends the operating temperature range to 105°C and provides lifetime rating at that elevated temperature, making it compatible for direct substitution.

Q: Can 450USG330MEFCSN30X35 be used as a direct replacement for SLPX331M420E5P3?

A: Yes. Both parts share identical capacitance (330 µF), tolerance (±20%), package configuration (Radial, Can - Snap-In), mounting type (Through Hole), lead spacing (10.00 mm), and physical dimensions (30.00 mm diameter, 37.00 mm height). The Rubycon part has a higher voltage rating (450 V versus 420 V), which is acceptable for substitution as it provides additional voltage margin. Operating temperature range and lifetime rating match the original specification.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by: capacitance value (330 µF), tolerance (±20%), voltage rating (equal to or greater than 420 V), package type (Radial, Can - Snap-In), mounting method (Through Hole), lead spacing (10.00 mm), physical dimensions (30.00 mm diameter, 37.00 mm maximum height), and polarization (Polar). All three parts meet these criteria. Compliance certifications (ROHS3, REACH) and product status (Active) are also required.

Q: Are there differences in ripple current ratings between the original and substitute parts?

A: Yes. The SLPX331M420E5P3 specifies 1.98 A ripple current at 120 Hz. The LQSW6331MELB35 specifies 1.42 A at 120 Hz, and the 450USG330MEFCSN30X35 specifies 2.1 A at 120 Hz. These differences reflect manufacturer design variations. Selection should account for application ripple current requirements.

Q: What is the significance of the extended temperature range in LQSW6331MELB35?

A: The Nichicon LQSW6331MELB35 operates to 105°C with a 3000-hour lifetime at that temperature, compared to the original 85°C specification. This extended thermal capability allows operation in higher-temperature environments while maintaining the same lifetime rating. Applications requiring elevated operating temperatures benefit from this characteristic.

Q: Are all three parts RoHS and REACH compliant?

A: Yes. The SLPX331M420E5P3, LQSW6331MELB35, and 450USG330MEFCSN30X35 are all ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.