SLPX271M450C4P3 Equivalent & Substitute Parts

Part Overview

The SLPX271M450C4P3 is a 270 µF, 450 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can snap-in package. This component is designed for general-purpose applications requiring high voltage energy storage and filtering. The part maintains Active product status with 922 units currently in stock.

Equivalent and substitute parts are identified when alternative manufacturers offer capacitors with matching or superior electrical and mechanical specifications within the same package category. Substitution becomes necessary due to supply chain considerations, lead time requirements, or inventory availability while maintaining circuit performance and reliability standards.

Substiute Parts

SLPX271M450C4P3

Cornell Dubilier Electronics (CDE)In Stock: 1025SLPX271M450C4P3 Datasheet

Current PartRFQ

B43642A5277M000

EPCOS - TDK ElectronicsIn Stock: 273822B43642A5277M000 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SLPX271M450C4P3 is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Capacitance value: 270 µF (exact match required)
• Voltage rating: 450 V (minimum, equal or higher acceptable)
• Tolerance: ±20% (matching tolerance band)
• Polarization: Polar (electrolytic type)

Mechanical Compatibility Requirements:

• Package type: Radial, Can - Snap-In (exact match required)
• Lead spacing: 0.394" (10.00mm) (exact match required)
• Diameter: 0.984" (25.00mm) (exact match required)
• Height: 1.850" (47.00mm) maximum (exact match required)
• Mounting: Through Hole (exact match required)

Compliance Requirements:

• RoHS3 Compliant status
• REACH Unaffected status
• Active product status

The substitute part B43642A5277M000 meets all critical electrical and mechanical parameters, enabling direct functional replacement in the SLPX271M450C4P3 application.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: SLPX271M450C4P3

The SLPX271M450C4P3 maintains Active product status with established supply availability (922 units in stock). This part is ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for industrial and commercial applications.

Substitute Part: B43642A5277M000

The B43642A5277M000 manufactured by EPCOS - TDK Electronics is a direct functional equivalent with identical electrical and mechanical specifications. This substitute demonstrates superior performance characteristics in ESR (310 mOhm versus 983 mOhm) and extended operating temperature capability (-40°C to 105°C versus -25°C to 85°C). The substitute maintains equivalent lifetime rating (3000 hours) at an elevated temperature threshold (105°C versus 85°C).

Both parts are Active products with ROHS3 Compliance and REACH Unaffected status. Selection between the primary and substitute part should be based on supply chain availability, lead time requirements, and inventory positioning. The substitute part offers enhanced thermal performance characteristics suitable for applications requiring extended temperature operating margins.

Frequently Asked Questions (FAQ)

Q: Can B43642A5277M000 directly replace SLPX271M450C4P3 in existing circuit designs?

A: Yes. Both parts share identical capacitance (270 µF), voltage rating (450 V), tolerance (±20%), and mechanical dimensions (0.984" diameter, 1.850" height, 10.00mm lead spacing). The radial snap-in package configuration and through-hole mounting are identical, enabling direct PCB-level substitution without design modification.

Q: What are the key electrical differences between these parts?

A: The B43642A5277M000 exhibits lower ESR (310 mOhm @ 100 Hz) compared to the SLPX271M450C4P3 (983 mOhm @ 120 Hz). The substitute part also supports extended operating temperature range (-40°C to 105°C versus -25°C to 85°C) and maintains its 3000-hour lifetime rating at the higher temperature threshold of 105°C.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both SLPX271M450C4P3 and B43642A5277M000 are ROHS3 Compliant and REACH Unaffected, meeting current environmental and hazardous substance regulations for industrial component applications.

Q: What is the lead spacing specification, and why is it critical for substitution?

A: Both parts specify 0.394" (10.00mm) lead spacing. This dimension is critical for PCB through-hole pad alignment and mechanical fit. Identical lead spacing ensures the substitute part mounts correctly without requiring PCB redesign or pad repositioning.

Q: Can the substitute part be used in high-temperature applications?

A: The B43642A5277M000 supports continuous operation up to 105°C, compared to 85°C for the SLPX271M450C4P3. The substitute part maintains its 3000-hour lifetime specification at this elevated temperature, making it suitable for applications with higher thermal operating margins.

Q: What inventory considerations apply to these parts?

A: The SLPX271M450C4P3 has 922 units in current stock. The B43642A5277M000 has significantly higher inventory availability (273,782 units in stock), making it a viable alternative for applications with extended lead time requirements or high-volume procurement needs.

Q: Are there any package or mounting differences between these parts?

A: No. Both parts use identical Radial, Can - Snap-In package configuration with through-hole mounting. Physical dimensions, lead spacing, and PCB interface requirements are identical, eliminating any mechanical compatibility concerns.