SLPX151M385C3P3 Equivalent & Substitute Parts Reference

Part Overview

The SLPX151M385C3P3 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 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 to address inventory availability, extended operational lifetime requirements, higher voltage ratings, or improved electrical performance characteristics while maintaining mechanical and electrical compatibility within the allowed parameter specifications for this product category.

Substiute Parts

SLPX151M385C3P3

Cornell Dubilier Electronics (CDE)In Stock: 736SLPX151M385C3P3 Datasheet

Current PartRFQ

B43501B3157M000

EPCOS - TDK ElectronicsIn Stock: 1074B43501B3157M000 Datasheet

DirectRFQ

450VXG150MEFCSN25X30

RubyconIn Stock: 3214450VXG150MEFCSN25X30 Datasheet

UpgradeRFQ

450VXH150MEFCSN25X30

RubyconIn Stock: 274092450VXH150MEFCSN25X30 Datasheet

UpgradeRFQ

B43508B5157M000

EPCOS - TDK ElectronicsIn Stock: 1158B43508B5157M000 Datasheet

UpgradeRFQ

B43634B5157M000

EPCOS - TDK ElectronicsIn Stock: 1314B43634B5157M000 Datasheet

UpgradeRFQ

LGX2W151MELA30

NichiconIn Stock: 3406LGX2W151MELA30 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are grouped into two categories based on voltage rating and operational characteristics:

Direct Equivalent (Same Voltage Rating - 385 V):

• B43501B3157M000 (EPCOS - TDK Electronics): Maintains 385 V rating with identical mechanical dimensions and lead spacing. Differs in ESR specification (440 mOhm @ 100Hz vs. 1.33 Ohm @ 120Hz) and extended lifetime (10000 Hrs @ 85°C vs. 3000 Hrs @ 85°C). Operating temperature range extended to -40°C ~ 85°C.

Upgraded Alternatives (Higher Voltage Rating - 450 V):

• 450VXG150MEFCSN25X30 (Rubycon VXG Series)
• 450VXH150MEFCSN25X30 (Rubycon VXH Series)
• B43508B5157M000 (EPCOS - TDK Electronics B43508 Series)
• B43634B5157M000 (EPCOS - TDK Electronics B43634 Series)
• LGX2W151MELA30 (Nichicon LGX Series)

All substitute parts maintain identical mechanical compatibility: 0.394" (10.00mm) lead spacing, 0.984" (25.00mm) diameter, 1.260" (32.00mm) maximum seated height, radial can snap-in package, through-hole mounting, and ±20% capacitance tolerance.

Key Parameters Determining Substitution:

• Capacitance: 150 µF (fixed)
• Tolerance: ±20% (fixed)
• Package Type: Radial, Can - Snap-In (fixed)
• Lead Spacing: 0.394" (10.00mm) (fixed)
• Physical Dimensions: 0.984" Dia × 1.260" Height (fixed)
• Mounting Type: Through Hole (fixed)
• Polarization: Polar (fixed)

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent Selection:

B43501B3157M000 is the direct equivalent for SLPX151M385C3P3 when maintaining the 385 V voltage specification is required. This part provides improved ESR performance (440 mOhm @ 100Hz versus 1.33 Ohm @ 120Hz) and extended operational lifetime (10000 Hrs @ 85°C versus 3000 Hrs @ 85°C). The operating temperature range is extended to -40°C ~ 85°C. All mechanical and electrical parameters remain compatible. Both parts are ROHS3 compliant and Active status.

Upgraded Alternative Selection:

When circuit design permits voltage rating increase to 450 V, five upgraded alternatives are available:

• 450VXH150MEFCSN25X30 (Rubycon VXH): Highest inventory availability (274,082 pcs). Extended operating temperature to 105°C. Lifetime specification of 5000 Hrs @ 105°C. ROHS3 compliant, Active status.

• LGX2W151MELA30 (Nichicon LGX): Extended operating temperature to 105°C. Lifetime specification of 5000 Hrs @ 105°C. ROHS3 compliant, Active status. Inventory: 3,348 pcs.

• 450VXG150MEFCSN25X30 (Rubycon VXG): Extended operating temperature to 105°C. Lifetime specification of 5000 Hrs @ 105°C. ROHS3 compliant, Active status. Inventory: 3,200 pcs.

• B43634B5157M000 (EPCOS - TDK B43634): ESR specification of 700 mOhm @ 100Hz. Extended lifetime of 8000 Hrs @ 85°C. Operating temperature range -25°C ~ 85°C. ROHS3 compliant, Active status. Inventory: 1,279 pcs.

• B43508B5157M000 (EPCOS - TDK B43508): ESR specification of 820 mOhm @ 100Hz. Extended operating temperature to 105°C. Lifetime specification of 3000 Hrs @ 105°C. ROHS3 compliant, Active status. Inventory: 1,064 pcs.

All substitute parts maintain identical mechanical compatibility and are suitable for through-hole mounting in radial, can snap-in configurations.

Frequently Asked Questions (FAQ)

Q: Can B43501B3157M000 be used as a direct replacement for SLPX151M385C3P3?

A: Yes. B43501B3157M000 maintains the 385 V voltage rating and all mechanical parameters (lead spacing, diameter, height, package type). Both parts are rated 150 µF with ±20% tolerance. The substitute offers improved ESR performance and extended lifetime. Both are ROHS3 compliant and Active status.

Q: What is the primary difference between the 385 V and 450 V substitute options?

A: The 385 V option (B43501B3157M000) maintains the original voltage specification. The 450 V options provide higher voltage margin and are available from multiple manufacturers with varying lifetime and temperature specifications. All maintain identical mechanical dimensions and lead spacing.

Q: Are all substitute parts mechanically compatible with the original SLPX151M385C3P3?

A: Yes. All substitute parts share identical mechanical specifications: 0.394" (10.00mm) lead spacing, 0.984" (25.00mm) diameter, 1.260" (32.00mm) maximum seated height, radial can snap-in package, and through-hole mounting configuration.

Q: Which substitute part has the longest operational lifetime?

A: B43634B5157M000 offers 8000 Hrs @ 85°C. The Rubycon VXG, Rubycon VXH, and Nichicon LGX series offer 5000 Hrs @ 105°C, which represents extended temperature operation. B43501B3157M000 offers 10000 Hrs @ 85°C.

Q: Can I use a 450 V rated capacitor in a circuit designed for 385 V?

A: Yes. A higher voltage-rated capacitor is electrically compatible in a lower voltage circuit. The 450 V substitutes provide additional voltage margin and are suitable for 385 V applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and suitable for applications requiring RoHS compliance.

Q: What is the capacitance tolerance for all parts?

A: All parts, including the original SLPX151M385C3P3 and all substitutes, maintain ±20% capacitance tolerance.

Q: Which substitute offers the best ESR performance?

A: B43501B3157M000 offers 440 mOhm @ 100Hz, the lowest ESR among parts with specified values. B43634B5157M000 offers 700 mOhm @ 100Hz. Several upgraded alternatives do not specify ESR values.

Q: What is the operating temperature range of the original part?

A: SLPX151M385C3P3 operates from -25°C to 85°C. Several substitutes extend this range to -40°C or -25°C to 105°C depending on the series.