SLP101M420C1P3 Equivalent & Substitute Parts Reference

Part Overview

The SLP101M420C1P3 is a 100 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 through-hole mounting. The part is ROHS3 compliant and REACH unaffected, meeting current environmental standards.

Substitute parts become necessary when the original SLP101M420C1P3 reaches end-of-life inventory depletion, when supply chain constraints limit availability, or when design requirements allow for higher voltage ratings or improved performance characteristics within the same physical and electrical envelope.

Substiute Parts

SLP101M420C1P3

Cornell Dubilier Electronics (CDE)In Stock: 1071SLP101M420C1P3 Datasheet

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B43644B5107M000

EPCOS - TDK ElectronicsIn Stock: 989B43644B5107M000 Datasheet

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LGN2W101MELA25

NichiconIn Stock: 2470LGN2W101MELA25 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SLP101M420C1P3 is determined by strict adherence to the following parameters:

Critical Matching Parameters:

• Capacitance value: 100 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Package configuration: Radial, Can - Snap-In (exact match required)
• Lead spacing: 10.00 mm (exact match required)
• Physical dimensions: 25.00 mm diameter, 27.00 mm height maximum (exact match required)
• Mounting type: Through Hole (exact match required)
• Polarization: Polar (exact match required)

Allowable Variation Parameters:

• Voltage rating: Substitutes must equal or exceed 420 V
• Operating temperature range: Substitutes must cover the minimum range of -25°C to 105°C
• Lifetime @ 105°C: Substitutes may equal or exceed 3000 hours
• ESR and ripple current: Substitutes may differ if electrical performance is maintained or improved
• Manufacturer: Different manufacturers acceptable if all parameters align

The two substitute parts listed (B43644B5107M000 and LGN2W101MELA25) meet all critical matching parameters and offer voltage ratings of 450 V, which exceeds the original 420 V specification, providing design margin improvement.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are qualified for direct replacement of the SLP101M420C1P3 based on the following engineering criteria:

B43644B5107M000 (EPCOS - TDK Electronics): This substitute provides a 450 V voltage rating, representing a 30 V increase over the original specification. The extended lifetime rating of 5000 hours at 105°C (compared to 3000 hours for the original) indicates enhanced thermal stability. The operating temperature range extends to -40°C, providing broader environmental compatibility. All physical dimensions and mounting characteristics are identical. ROHS3 compliance and EAR99 classification match the original part. This part is suitable for applications where extended reliability and lower temperature operation are beneficial.

LGN2W101MELA25 (Nichicon): This substitute maintains the 450 V voltage rating and identical physical envelope. The operating temperature range matches the original specification at -25°C to 105°C. The lifetime rating of 3000 hours at 105°C is equivalent to the original part. All mechanical and electrical interface parameters are identical. ROHS3 compliance and EAR99 classification are maintained. This part is suitable for direct replacement where thermal performance equivalent to the original is required.

Both substitutes are Active product status components with current manufacturing support and full regulatory compliance documentation.

Frequently Asked Questions (FAQ)

Q: Can B43644B5107M000 be used in place of SLP101M420C1P3 without circuit modification?

A: Yes. The B43644B5107M000 is a direct mechanical and electrical substitute. The 450 V rating exceeds the 420 V requirement, and all physical dimensions, lead spacing, and mounting characteristics are identical. No circuit modifications are required.

Q: What is the difference between the two substitute parts?

A: Both substitutes share identical capacitance (100 µF), tolerance (±20%), voltage rating (450 V), and physical dimensions. The primary differences are: B43644B5107M000 offers 5000 hours lifetime at 105°C and -40°C to 105°C operating range; LGN2W101MELA25 offers 3000 hours lifetime at 105°C and -25°C to 105°C operating range. Selection depends on thermal and temperature requirements of the application.

Q: Are the substitute parts pin-compatible with the original SLP101M420C1P3?

A: Yes. Both substitutes maintain the identical 10.00 mm lead spacing and through-hole radial configuration. PCB footprints and mounting holes are directly compatible.

Q: Do the substitute parts meet the same regulatory requirements?

A: Yes. Both B43644B5107M000 and LGN2W101MELA25 are ROHS3 compliant, REACH unaffected, and classified as EAR99. They meet identical regulatory and compliance standards as the original SLP101M420C1P3.

Q: Can I use a substitute part with a higher voltage rating in a 420 V circuit?

A: Yes. Using a 450 V rated capacitor in a 420 V circuit is standard engineering practice. The higher voltage rating provides design margin and does not negatively affect circuit operation. The capacitance value and tolerance remain the same.

Q: What is the significance of the snap-in package configuration?

A: The snap-in configuration indicates the capacitor uses a mechanical locking mechanism for secure mounting in the PCB. All three parts (original and substitutes) use identical snap-in mechanisms, ensuring mechanical compatibility and secure installation without additional fastening.

Q: Are there inventory considerations when selecting a substitute?

A: Current inventory levels are: SLP101M420C1P3 (1006 pcs), B43644B5107M000 (906 pcs), LGN2W101MELA25 (2402 pcs). Selection may be influenced by immediate availability requirements and supply chain planning.