LPX561M350H7P3 Equivalent & Substitute Parts Reference

Part Overview

The LPX561M350H7P3 is a 560 µF, 350 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 with snap-in termination. The part operates across a temperature range of -40°C to 85°C with a rated lifetime of 1000 hours at 85°C. Equivalent and substitute parts are identified to address inventory availability, extended operational requirements, or enhanced performance specifications while maintaining functional compatibility within the same capacitance and voltage class.

Substiute Parts

LPX561M350H7P3

Cornell Dubilier Electronics (CDE)In Stock: 739LPX561M350H7P3 Datasheet

Current PartRFQ

B43644B9567M000

EPCOS - TDK ElectronicsIn Stock: 2849B43644B9567M000 Datasheet

DirectRFQ

B43508B9567M000

EPCOS - TDK ElectronicsIn Stock: 274101B43508B9567M000 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LPX561M350H7P3 are qualified based on the following substitution criteria:

Critical Matching Parameters:

• Capacitance value: 560 µF (exact match required)
• Package type: Radial, Can - Snap-In (identical physical interface)
• Lead spacing: 0.394" (10.00mm) (PCB compatibility)
• Can diameter: 1.378" (35.00mm) (envelope constraint)
• Mounting type: Through Hole (assembly compatibility)
• Tolerance: ±20% or tighter (electrical tolerance)

Acceptable Variation Parameters:

• Voltage rating: Equal to or greater than 350 V (higher voltage provides margin)
• Operating temperature range: Equal to or extending beyond -40°C ~ 85°C (broader range acceptable)
• ESR: Lower values acceptable (improved performance)
• Lifetime: Equal to or greater than 1000 Hrs @ 85°C (extended reliability acceptable)
• Height: Variation acceptable within physical envelope constraints

Regulatory Compliance:

• RoHS3 Compliant status required
• REACH Unaffected status maintained

The identified substitute parts B43644B9567M000 and B43508B9567M000 (both EPCOS - TDK Electronics) meet all critical matching parameters and provide enhanced electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

B43644B9567M000 (Direct Substitute - EPCOS - TDK Electronics)

This part qualifies as a direct substitute based on identical capacitance (560 µF), tolerance (±20%), package configuration (Radial, Can - Snap-In), and physical dimensions (35mm diameter, 10mm lead spacing). The 400 V voltage rating exceeds the 350 V requirement, providing additional voltage margin. The ESR is reduced to 170 mOhm @ 100Hz compared to 355 mOhm @ 120Hz in the original part, indicating improved electrical performance. The lifetime specification extends to 5000 hours at 105°C, substantially exceeding the original 1000 hours at 85°C. Operating temperature range extends to 105°C. Height increases to 1.654" (42.00mm) from 1.575" (40.00mm), requiring verification of available vertical clearance in the application. RoHS3 compliance and REACH Unaffected status are maintained. This substitute is suitable for direct replacement in applications where the increased height does not present a constraint.

B43508B9567M000 (Upgrade - EPCOS - TDK Electronics)

This part qualifies as an upgrade substitute with identical capacitance (560 µF), tolerance (±20%), package configuration (Radial, Can - Snap-In), and physical dimensions matching the original part exactly (35mm diameter, 10mm lead spacing, 1.575" height). The 400 V voltage rating exceeds the 350 V requirement. The ESR is reduced to 220 mOhm @ 100Hz compared to 355 mOhm @ 120Hz, providing improved electrical performance. The lifetime specification extends to 3000 hours at 105°C, exceeding the original 1000 hours at 85°C. Operating temperature range extends to 105°C. Height remains at 1.575" (40.00mm), maintaining identical physical envelope. RoHS3 compliance and REACH Unaffected status are maintained. This substitute provides enhanced reliability and performance with no physical footprint changes.

Selection Basis:

Both substitute parts maintain Active product status and full regulatory compliance (RoHS3, REACH Unaffected). Selection between B43644B9567M000 and B43508B9567M000 depends on available vertical clearance: B43508B9567M000 is preferred when height constraint is critical (identical 40mm height); B43644B9567M000 is acceptable when 42mm height is accommodated. Both provide superior ESR characteristics and extended operational lifetime compared to the original LPX561M350H7P3.

Frequently Asked Questions (FAQ)

Q: Can B43644B9567M000 or B43508B9567M000 be used as direct replacements for LPX561M350H7P3?

A: Both parts meet the critical substitution criteria: identical 560 µF capacitance, ±20% tolerance, Radial Can - Snap-In package, 35mm diameter, and 10mm lead spacing. Both are through-hole mounted with identical polarization. The primary difference is height: B43508B9567M000 matches the original 1.575" (40mm) height exactly, while B43644B9567M000 is 1.654" (42mm). Verify available vertical clearance before selection.

Q: What are the voltage rating implications of the 400 V substitute parts?

A: The original LPX561M350H7P3 is rated at 350 V. Both substitute parts are rated at 400 V, providing a 50 V margin above the original specification. This higher voltage rating does not affect circuit operation at 350 V or below and provides additional safety margin. No circuit modifications are required.

Q: How do the ESR specifications compare?

A: The original part specifies 355 mOhm @ 120Hz. B43644B9567M000 provides 170 mOhm @ 100Hz (52% reduction), and B43508B9567M000 provides 220 mOhm @ 100Hz (38% reduction). Lower ESR indicates reduced internal resistance and improved electrical performance, particularly beneficial in high-ripple-current applications.

Q: What is the significance of the extended lifetime ratings?

A: The original part is rated for 1000 hours at 85°C. B43644B9567M000 extends this to 5000 hours at 105°C (5x improvement), and B43508B9567M000 extends to 3000 hours at 105°C (3x improvement). Extended lifetime indicates enhanced reliability and longer operational service life under thermal stress.

Q: Are there any regulatory compliance differences?

A: All three parts (original and both substitutes) maintain RoHS3 Compliant status and REACH Unaffected status. No regulatory compliance issues exist with either substitute part.

Q: What is the inventory status of these substitute parts?

A: B43644B9567M000 has 2765 pieces in stock. B43508B9567M000 has 274082 pieces in stock. Both are available in bulk packaging and maintain Active product status.

Q: Can the operating temperature range difference affect compatibility?

A: The original part operates from -40°C to 85°C. Both substitute parts operate from -40°C to 105°C. The extended upper temperature limit (105°C vs. 85°C) provides additional thermal margin and does not create compatibility issues. Applications operating within the original -40°C to 85°C range are fully compatible.

Q: Which substitute part should be selected for space-constrained applications?

A: B43508B9567M000 is the preferred choice for space-constrained applications because it maintains the identical height of 1.575" (40mm) as the original LPX561M350H7P3. B43644B9567M000 increases height to 1.654" (42mm) and requires verification of available vertical clearance.