LP331M450H5P3 Equivalent & Substitute Parts

Part Overview

The LP331M450H5P3 is a 330 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 is Active in product status with 1129 units in current inventory stock.

Substitute parts are identified when equivalent electrical and mechanical specifications are met within the allowed tolerance parameters for this capacitor category. Substitution becomes necessary when the primary part is unavailable, when supply chain requirements demand alternative sourcing, or when design flexibility permits component interchange.

Substiute Parts

LP331M450H5P3

Cornell Dubilier Electronics (CDE)In Stock: 1197LP331M450H5P3 Datasheet

Current PartRFQ

B43640C5337M000

EPCOS - TDK ElectronicsIn Stock: 1310B43640C5337M000 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP331M450H5P3 are qualified based on strict equivalence of the following parameters:

Electrical Equivalence Requirements:

• Capacitance: 330 µF (exact match)
• Voltage Rating: 450 V (exact match)
• Tolerance: ±20% (exact match)
• Operating Temperature Range: -40°C ~ 105°C (exact match or wider range acceptable)
• Polarization: Polar (exact match)

Mechanical Equivalence Requirements:

• Package Type: Radial, Can - Snap-In (exact match)
• Lead Spacing: 0.394" (10.00mm) (exact match)
• Mounting Type: Through Hole (exact match)

Compliance Requirements:

• RoHS Status: ROHS3 Compliant (exact match)
• REACH Status: REACH Unaffected (exact match)

The substitute part B43640C5337M000 meets all mandatory equivalence criteria. Secondary performance parameters such as ESR, lifetime rating, and ripple current may vary within acceptable engineering margins for general-purpose applications.

Parameter Comparison

Engineering Selection Recommendations

Substitution Compatibility:

The B43640C5337M000 (EPCOS - TDK Electronics) is a direct electrical and mechanical equivalent to the LP331M450H5P3. Both components are Active products with current manufacturing status and full regulatory compliance (ROHS3 and REACH Unaffected).

Physical Fit Consideration:

The substitute part has a maximum seated height of 1.260" (32.00mm) compared to the main part's 1.378" (35.00mm). This 0.118" (3.00mm) reduction in height is compatible with through-hole snap-in mounting applications and does not compromise mechanical stability or electrical performance.

Performance Advantage:

The B43640C5337M000 provides a rated lifetime of 2000 hours at 105°C, which exceeds the LP331M450H5P3 specification of 1000 hours at the same temperature. This represents enhanced reliability for extended-life applications.

Compliance Status:

Both parts maintain identical regulatory standing with ROHS3 compliance and REACH Unaffected status, ensuring no additional qualification or documentation requirements for substitution in regulated applications.

Frequently Asked Questions (FAQ)

Q: Can the B43640C5337M000 be used as a direct replacement for the LP331M450H5P3 in existing designs?

A: Yes. Both components share identical electrical specifications (330 µF, 450 V, ±20% tolerance), operating temperature range (-40°C ~ 105°C), and mechanical form factor (radial, can snap-in, 10.00mm lead spacing). PCB footprints and through-hole mounting interfaces are compatible.

Q: Does the height difference between the two parts affect circuit board assembly?

A: No. The B43640C5337M000 is 3.00mm shorter in seated height (32.00mm vs. 35.00mm). This reduction does not compromise snap-in mounting security or electrical performance. The component remains fully compatible with standard through-hole assembly processes.

Q: Are there any regulatory or compliance differences between these parts?

A: No. Both the LP331M450H5P3 and B43640C5337M000 are ROHS3 Compliant and REACH Unaffected. No additional certification or qualification is required when substituting between these parts in regulated applications.

Q: What is the significance of the higher lifetime rating on the substitute part?

A: The B43640C5337M000 is rated for 2000 hours at 105°C, compared to 1000 hours for the LP331M450H5P3. This indicates enhanced thermal stability and longer operational life under sustained high-temperature conditions. The substitute part meets or exceeds the performance envelope of the original component.

Q: Are the electrical performance characteristics identical?

A: Core electrical specifications are identical: capacitance (330 µF), voltage rating (450 V), and tolerance (±20%). The substitute part provides additional performance data including ESR (310 mOhm @ 100Hz) and ripple current (1.43 A @ 100Hz), which are not specified for the main part. These parameters indicate equivalent or superior performance for general-purpose filtering applications.

Q: Can these parts be used interchangeably in new designs?

A: Yes. Both components meet all electrical and mechanical requirements for general-purpose aluminum electrolytic capacitor applications. Design selection may be based on availability, lead time, or preferred supplier relationship without compromising circuit performance or reliability.