SLPX151M400C3P3 Equivalent & Substitute Parts

Part Overview

The SLPX151M400C3P3 is a 150 µF, 400 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 an operating temperature range of -25°C to 85°C and a lifetime specification of 3000 hours at 85°C. The part is Active status and ROHS3 compliant.

Substitute parts are identified when equivalent capacitance, tolerance, package configuration, and mounting type are maintained while voltage rating, thermal performance, or ESR characteristics may be upgraded to meet enhanced application requirements.

Substiute Parts

SLPX151M400C3P3

Cornell Dubilier Electronics (CDE)In Stock: 1126SLPX151M400C3P3 Datasheet

Current PartRFQ

450VXG150MEFCSN25X30

RubyconIn Stock: 3214450VXG150MEFCSN25X30 Datasheet

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450VXH150MEFCSN25X30

RubyconIn Stock: 274092450VXH150MEFCSN25X30 Datasheet

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B43508B5157M000

EPCOS - TDK ElectronicsIn Stock: 1158B43508B5157M000 Datasheet

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B43634B5157M000

EPCOS - TDK ElectronicsIn Stock: 1314B43634B5157M000 Datasheet

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LGX2W151MELA30

NichiconIn Stock: 3406LGX2W151MELA30 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SLPX151M400C3P3 are qualified based on the following criteria:

Primary Matching Parameters:

• Capacitance: 150 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: 0.394" (10.00mm) (exact match required)
• Physical Dimensions: 0.984" Dia × 1.260" Height (exact match required)
• Polarization: Polar (exact match required)

Allowable Upgrade Parameters:

• Voltage - Rated: 450 V (upgrade from 400 V acceptable)
• Lifetime @ Temp.: Extended specifications acceptable
• Operating Temperature: Extended range acceptable
• ESR (Equivalent Series Resistance): Lower values acceptable
• Ripple Current: Higher values acceptable

All substitute parts maintain identical mechanical and electrical compatibility while offering equal or superior performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and ROHS3 compliance, ensuring regulatory and supply chain continuity.

450VXG150MEFCSN25X30 (Rubycon VXG Series): Offers 450 V rated voltage with 5000-hour lifetime at 105°C. Suitable for applications requiring extended thermal performance over the original 400 V specification.

450VXH150MEFCSN25X30 (Rubycon VXH Series): Provides 450 V rated voltage with 5000-hour lifetime at 105°C. Highest inventory availability (274,082 units) among substitute options. Suitable for high-volume procurement requirements.

B43508B5157M000 (EPCOS - TDK Electronics B43508 Series): Rated 450 V with 3000-hour lifetime at 105°C. Features lower ESR (820 mOhm @ 100Hz) and extended operating temperature range (-40°C to 105°C). Suitable for applications requiring improved low-temperature performance.

B43634B5157M000 (EPCOS - TDK Electronics B43634 Series): Rated 450 V with extended 8000-hour lifetime at 85°C and lowest ESR (700 mOhm @ 100Hz). Suitable for long-life applications operating at standard temperature ranges.

LGX2W151MELA30 (Nichicon LGX Series): Rated 450 V with 5000-hour lifetime at 105°C. Suitable for applications requiring extended thermal performance and high-frequency ripple current handling.

Frequently Asked Questions (FAQ)

Q: Can SLPX151M400C3P3 be directly replaced with a 450 V rated substitute?

A: Yes. All listed substitute parts maintain 150 µF capacitance, ±20% tolerance, identical physical dimensions (0.984" diameter × 1.260" height), 10.00mm lead spacing, and radial snap-in package configuration. The 450 V rating represents an upgrade that maintains backward compatibility with 400 V circuit requirements.

Q: What is the difference between the Rubycon VXG and VXH series substitutes?

A: Both 450VXG150MEFCSN25X30 and 450VXH150MEFCSN25X30 share identical electrical specifications (150 µF, 450 V, ±20%, 5000 Hrs @ 105°C) and physical dimensions. The primary difference is inventory availability, with VXH series showing significantly higher stock (274,082 units vs. 3,200 units).

Q: Which substitute offers the lowest ESR?

A: B43634B5157M000 (EPCOS - TDK Electronics) provides the lowest ESR at 700 mOhm @ 100Hz, compared to B43508B5157M000 at 820 mOhm @ 100Hz. The original SLPX151M400C3P3 specifies 1.33 Ohm @ 120Hz.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant, matching the compliance status of the original SLPX151M400C3P3.

Q: What is the operating temperature range difference between the main part and substitutes?

A: The original SLPX151M400C3P3 operates from -25°C to 85°C. Substitute parts offer extended ranges: Rubycon VXG/VXH and Nichicon LGX series extend to 105°C; EPCOS B43508 extends to 105°C with lower temperature limit of -40°C; EPCOS B43634 maintains -25°C to 85°C matching the original.

Q: Can substitutes be used in applications designed for the original 400 V rating?

A: Yes. All substitute parts are rated 450 V, which exceeds the original 400 V specification. This provides additional voltage margin and is electrically compatible with circuits designed for 400 V operation.

Q: Which substitute has the longest lifetime specification?

A: B43634B5157M000 (EPCOS - TDK Electronics) specifies 8000 hours at 85°C, the longest among all listed options. Rubycon VXG/VXH and Nichicon LGX series specify 5000 hours at 105°C.

Q: Are the physical dimensions identical across all parts?

A: Yes. All parts, including the main SLPX151M400C3P3 and all five substitutes, share identical dimensions: 0.984" diameter, 1.260" maximum seated height, and 0.394" (10.00mm) lead spacing. All use radial, can snap-in packages with through-hole mounting.