LP151M450C7P3 Equivalent & Substitute Parts

Part Overview

The LP151M450C7P3 is a 150 µF, 450 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can snap-in package. This component is rated for 1000 hours at 105°C and operates across a temperature range of -40°C to 105°C. The part is Active in product status and RoHS3 compliant.

Equivalent and substitute parts are identified when components share identical or compatible electrical ratings and mechanical specifications that permit direct functional replacement in circuit applications. Substitutes for the LP151M450C7P3 are selected based on matching capacitance, voltage rating, tolerance, package type, and thermal performance characteristics.

Substiute Parts

LP151M450C7P3

Cornell Dubilier Electronics (CDE)In Stock: 1007LP151M450C7P3 Datasheet

Current PartRFQ

B43640B5157M000

EPCOS - TDK ElectronicsIn Stock: 273983B43640B5157M000 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LP151M450C7P3 is determined by the following critical parameters:

Electrical Compatibility:

• Capacitance: 150 µF (exact match required)
• Voltage Rating: 450 V (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)

Mechanical Compatibility:

• Package Type: Radial, Can - Snap-In (exact match required)
• Mounting Type: Through Hole (exact match required)
• Lead Spacing: 0.394" (10.00mm) (exact match required)
• Diameter: 0.984" (25.00mm) (exact match required)

Regulatory Compliance:

• RoHS3 Compliant status (required for substitution)
• REACH Unaffected status (required for substitution)

The substitute part B43640B5157M000 meets all critical electrical and mechanical parameters. Height variation is permissible within snap-in package design constraints when lead spacing and diameter specifications are maintained.

Parameter Comparison

Engineering Selection Recommendations

The B43640B5157M000 manufactured by EPCOS - TDK Electronics is a qualified substitute for the LP151M450C7P3. Both components are Active in product status and maintain RoHS3 and REACH compliance.

Electrical Performance: Both parts deliver identical capacitance (150 µF), voltage rating (450 V), tolerance (±20%), and operating temperature range (-40°C to 105°C). The substitute provides documented ESR specification (640 mOhm @ 100Hz) and ripple current rating (820 mA @ 100 Hz), which exceed the requirements of the original part.

Thermal Characteristics: The B43640B5157M000 provides extended lifetime (2000 hours @ 105°C) compared to the LP151M450C7P3 (1000 hours @ 105°C), representing improved thermal performance.

Mechanical Compatibility: Both components share identical lead spacing (0.394" / 10.00mm), diameter (0.984" / 25.00mm), and mounting type (Through Hole, Radial Can - Snap-In). The substitute height (1.260" / 32.00mm) is reduced compared to the original (1.575" / 40.00mm), which is compatible with snap-in mounting design and does not affect electrical function.

Regulatory Compliance: Both parts maintain RoHS3 compliance and REACH Unaffected status, meeting current environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the B43640B5157M000 be used as a direct replacement for the LP151M450C7P3 in existing circuit designs?

A: Yes. Both components share identical electrical ratings (150 µF, 450 V, ±20% tolerance) and mechanical specifications (lead spacing, diameter, snap-in package). The substitute is mechanically and electrically compatible for direct replacement.

Q: Does the height difference between the two parts affect compatibility?

A: No. The B43640B5157M000 is 0.315" (8.00mm) shorter than the LP151M450C7P3. This reduction does not affect electrical performance or snap-in mounting compatibility. Verify available board space if height is a design constraint.

Q: What is the significance of the extended lifetime specification on the substitute part?

A: The B43640B5157M000 provides 2000 hours @ 105°C compared to 1000 hours @ 105°C for the LP151M450C7P3. This indicates improved thermal stability and longer operational life under elevated temperature conditions. The substitute meets or exceeds the thermal performance requirements of the original part.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the LP151M450C7P3 and B43640B5157M000 are RoHS3 compliant and REACH Unaffected, meeting current environmental regulations.

Q: What is the ESR specification, and why is it important?

A: ESR (Equivalent Series Resistance) is the internal resistance of the capacitor at a specified frequency. The B43640B5157M000 specifies 640 mOhm @ 100Hz. Lower ESR reduces heat generation and improves performance in high-ripple-current applications. The LP151M450C7P3 does not provide ESR specification in available documentation.

Q: Can these parts be used interchangeably in high-frequency applications?

A: Both components are rated for general-purpose applications. The B43640B5157M000 provides ripple current specification (820 mA @ 100 Hz) and impedance data (950 mOhms), which support selection for specific frequency-dependent applications. Verify ripple current and impedance requirements against application specifications.

Q: What is the lead spacing, and why does it matter?

A: Lead spacing is 0.394" (10.00mm) for both parts. This dimension determines PCB hole pattern compatibility. Identical lead spacing ensures both components fit existing through-hole mounting positions without modification.