SLP151M385A7P3 Equivalent & Substitute Parts

Part Overview

The SLP151M385A7P3 is a 150 µF, 385 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can snap-in package. This component is rated for general-purpose applications with a 3000-hour lifetime at 105°C and an operating temperature range of -25°C to 105°C. The part is currently active in production status with RoHS3 compliance and REACH unaffected designation.

Substitute parts are necessary when the original manufacturer part becomes unavailable, when design requirements call for enhanced performance characteristics such as higher voltage ratings or extended operational lifetime, or when alternative suppliers offer equivalent electrical and mechanical specifications within the same package form factor.

Substiute Parts

SLP151M385A7P3

Cornell Dubilier Electronics (CDE)In Stock: 743SLP151M385A7P3 Datasheet

Current PartRFQ

450VXG150MEFCSN22X40

RubyconIn Stock: 775450VXG150MEFCSN22X40 Datasheet

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B43504A9157M000

EPCOS - TDK ElectronicsIn Stock: 1592B43504A9157M000 Datasheet

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B43508A5157M000

EPCOS - TDK ElectronicsIn Stock: 1497B43508A5157M000 Datasheet

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ELXS451VSN151MP40S

Chemi-ConIn Stock: 1384ELXS451VSN151MP40S Datasheet

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LGN2W151MELZ40

NichiconIn Stock: 9660LGN2W151MELZ40 Datasheet

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LGX2W151MELZ40

NichiconIn Stock: 1085LGX2W151MELZ40 Datasheet

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LQS2W151MELZ40

NichiconIn Stock: 981LQS2W151MELZ40 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SLP151M385A7P3 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Substitution:

• Capacitance: 150 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Package / Case: Radial, Can - Snap-In (exact match required)
• Lead Spacing: 0.394" (10.00mm) (exact match required)
• Size / Dimension: 0.866" Dia (22.00mm) (exact match required)
• Height - Seated (Max): 1.654" (42.00mm) or 1.673" (42.50mm) (compatible within tolerance)
• Mounting Type: Through Hole (exact match required)
• Polarization: Polar (exact match required)

Allowable Variations:

• Voltage - Rated: May be equal to or greater than 385 V
• Lifetime @ 105°C: May be equal to or greater than 3000 hours
• Operating Temperature Range: Must encompass -25°C to 105°C minimum
• Ripple Current: May be equal to or greater than specified values
• ESR: Lower values are acceptable; higher values require evaluation
• RoHS Status: ROHS3 Compliant (maintained across all substitutes)
• REACH Status: REACH Unaffected (maintained across all substitutes)

All substitute parts listed meet these criteria and are classified as direct electrical and mechanical equivalents or upgrades.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Status, Voltage Upgrade):

The following parts are recommended as direct substitutes with enhanced voltage ratings and maintained or improved operational characteristics:

• LGX2W151MELZ40 (Nichicon LGX Series): Active product status. 450 V rated voltage with 5000-hour lifetime at 105°C. Identical mechanical dimensions and lead spacing. Increased ripple current capability at 120 Hz (880 mA). Suitable for applications requiring extended operational life and higher voltage margin.

• 450VXG150MEFCSN22X40 (Rubycon VXG Series): Active product status. 450 V rated voltage with 5000-hour lifetime at 105°C. Identical mechanical dimensions. Highest ripple current capability at 120 Hz (1.14 A). Suitable for high-ripple-current applications.

• B43508A5157M000 (EPCOS B43508 Series): Active product status. 450 V rated voltage. Extended operating temperature range (-40°C to 105°C). Identical mechanical dimensions. Suitable for applications requiring lower temperature operation.

Secondary Substitutes (Active Status, Voltage Upgrade, Standard Lifetime):

• LGN2W151MELZ40 (Nichicon LGN Series): Active product status. 450 V rated voltage with 3000-hour lifetime at 105°C. Identical mechanical dimensions and ripple current specifications to the original part at 120 Hz (790 mA).

• LQS2W151MELZ40 (Nichicon LQS Series): Active product status. 450 V rated voltage with 3000-hour lifetime at 105°C. Identical mechanical dimensions and ripple current specifications to the original part at 120 Hz (790 mA).

• ELXS451VSN151MP40S (Chemi-Con LXS Series): Active product status. 450 V rated voltage with 5000-hour lifetime at 105°C. Height dimension of 1.673" (42.50mm) represents a 0.5mm increase from the original specification. Suitable for applications with minor height tolerance flexibility.

Alternative Substitute (Not For New Designs):

• B43504A9157M000 (EPCOS B43504 Series): Not for new designs status. 400 V rated voltage with 3000-hour lifetime at 105°C. Extended operating temperature range (-40°C to 105°C). Lower ESR at 100 Hz (590 mOhm). Suitable only for replacement of existing installations where design freeze is in effect.

All substitute parts maintain RoHS3 compliance and REACH unaffected status. Selection should prioritize parts with active product status for new designs.

Frequently Asked Questions (FAQ)

Q: Can the SLP151M385A7P3 be replaced with a 450 V rated substitute?

A: Yes. All listed substitute parts with 450 V ratings are electrically compatible. The higher voltage rating provides increased safety margin and does not degrade performance in circuits designed for 385 V operation. The 450 V substitutes are direct mechanical and electrical equivalents.

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

A: Lifetime rating indicates the expected operational duration at maximum rated temperature (105°C) under specified ripple current conditions. Parts rated for 5000 hours (LGX2W151MELZ40, 450VXG150MEFCSN22X40, ELXS451VSN151MP40S) provide extended service life compared to 3000-hour parts. Selection depends on application requirements for component longevity.

Q: Are all substitute parts mechanically identical to the original SLP151M385A7P3?

A: All substitute parts share identical lead spacing (0.394" / 10.00mm), diameter (0.866" / 22.00mm), and mounting type (through-hole, radial snap-in). The ELXS451VSN151MP40S has a maximum seated height of 1.673" (42.50mm) compared to 1.654" (42.00mm) for the original and other substitutes. This 0.5mm difference is within typical PCB layout tolerances but should be verified for space-constrained applications.

Q: Which substitute offers the lowest ESR?

A: The B43504A9157M000 specifies 590 mOhm ESR at 100 Hz, which is lower than the original part's 2.212 Ohm at 120 Hz. However, this part carries "Not For New Designs" status and should be used only for replacement applications. For new designs, ESR values are not specified for most active substitutes, indicating they meet general-purpose performance requirements.

Q: What is the difference between Nichicon LGX, LGN, and LQS series?

A: All three Nichicon series (LGX2W151MELZ40, LGN2W151MELZ40, LQS2W151MELZ40) are 150 µF, 450 V, ±20% tolerance parts with identical mechanical dimensions and lead spacing. The LGX series offers 5000-hour lifetime with 880 mA ripple current at 120 Hz. The LGN and LQS series both offer 3000-hour lifetime with 790 mA ripple current at 120 Hz. Series selection depends on required operational lifetime and ripple current capacity.

Q: Can substitutes with extended temperature range (-40°C to 105°C) be used in place of the original (-25°C to 105°C)?

A: Yes. Parts with extended lower temperature ratings (B43504A9157M000 and B43508A5157M000) are fully compatible. The extended temperature range represents an enhancement and does not restrict use in applications designed for -25°C to 105°C operation.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain RoHS3 compliance and REACH unaffected status, matching the regulatory compliance of the original SLP151M385A7P3.

Q: Which substitute should be selected for high-ripple-current applications?

A: The 450VXG150MEFCSN22X40 (Rubycon VXG) provides the highest ripple current capability at 120 Hz (1.14 A) and 10 kHz (1.596 A). This part is recommended for applications with demanding ripple current specifications.