LPX680M450A3P3

Part Overview

The LPX680M450A3P3 is a 68 µF, 450 V aluminum electrolytic capacitor in radial, can snap-in form factor manufactured by Cornell Dubilier Electronics (CDE). This component is designed for general purpose applications requiring high voltage energy storage and filtering. The part is currently in active production status with 1023 units in stock. Alternative models are necessary when replacement inventory becomes limited, when design revisions require enhanced performance specifications, or when supply chain considerations require qualified substitutes with equivalent electrical characteristics.

Substiute Parts

LPX680M450A3P3

Cornell Dubilier Electronics (CDE)In Stock: 1055LPX680M450A3P3 Datasheet

Current PartRFQ

B43305A5686M000

EPCOS - TDK ElectronicsIn Stock: 1226B43305A5686M000 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The B43305A5686M000 qualifies as a direct functional substitute for the LPX680M450A3P3 based on the following matched electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Capacitance: 68 µF (identical)
• Tolerance: ±20% (identical)
• Voltage Rating: 450 V (identical)
• Polarization: Polar (identical)
• Operating Temperature Range: -40°C ~ 85°C (identical)

Mechanical Equivalence Criteria:

• Lead Spacing: 0.394" (10.00mm) (identical)
• Case Size: 0.866" Dia (22.00mm) (identical)
• Package Type: Radial, Can - Snap-In (identical)
• Mounting Type: Through Hole (identical)

Performance Considerations: The substitute exhibits superior ESR characteristics (1.99 Ohm @ 100Hz versus 2.926 Ohm @ 120Hz) and extended lifetime rating (2000 Hrs @ 85°C versus 1000 Hrs @ 85°C), providing improved performance margins. The height dimension of the substitute is slightly reduced (1.063" versus 1.181" seated height), which presents no installation constraints for snap-in mounting applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Component (LPX680M450A3P3): The LPX680M450A3P3 maintains active production status with 1023 units in stock inventory. This component is fully compliant with ROHS3 requirements and carries REACH Unaffected status, making it suitable for new designs and production environments with active supply chain support.

Qualified Substitute (B43305A5686M000): The B43305A5686M000 is classified as "Not For New Designs" by the manufacturer. While this component provides equivalent electrical and mechanical functionality with measurably improved ESR and lifetime characteristics, its non-active status limits its application to legacy system support, repair, or replacement scenarios where the original component is unavailable. The substitute maintains full ROHS3 compliance and REACH Unaffected status.

For new design implementations, selection of the LPX680M450A3P3 is appropriate due to its active product status. For system maintenance or legacy product support requiring direct mechanical and electrical substitution, the B43305A5686M000 provides qualified compatibility with performance advantages.

Frequently Asked Questions (FAQ)

Q: Can the B43305A5686M000 be used in place of the LPX680M450A3P3 in existing designs? A: Yes. Both components share identical capacitance (68 µF), voltage rating (450 V), tolerance (±20%), operating temperature range (-40°C ~ 85°C), lead spacing (10.00mm), case diameter (22.00mm), and snap-in package configuration. Mechanical and electrical substitution is direct.

Q: How do the performance characteristics differ between these parts? A: The B43305A5686M000 exhibits lower equivalent series resistance (1.99 Ohm @ 100Hz versus 2.926 Ohm @ 120Hz) and extended operational lifetime (2000 hours versus 1000 hours at 85°C). The substitute also provides slightly increased ripple current handling (700 mA @ 100 Hz versus 600 mA @ 120 Hz) and a reduced seated height (1.063" versus 1.181"), which does not impact snap-in mounting compatibility.

Q: Are there height constraints with the substitute component? A: The B43305A5686M000 is 0.118" shorter in seated height (1.063" versus 1.181"). This reduction presents no installation issues for snap-in mounting applications, as both components utilize identical lead spacing and package form factor. Verify available vertical clearance in the application if height is a design constraint.

Q: What is the compliance status of each component? A: Both the LPX680M450A3P3 and B43305A5686M000 are ROHS3 Compliant and carry REACH Unaffected status. The primary component maintains active production status, while the substitute is classified as "Not For New Designs."

Q: Can these capacitors be used interchangeably in high-ripple current applications? A: Both components support the ripple current specifications of their respective ratings. The substitute component (B43305A5686M000) provides higher ripple current capacity (700 mA @ 100 Hz) compared to the primary part (600 mA @ 120 Hz), making it suitable for applications with increased ripple current demands.