LPX221M350E3P3 Equivalent & Substitute Parts

Part Overview

The LPX221M350E3P3 is a 220 µF, 350 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can snap-in package format. This component is designed for general-purpose applications requiring through-hole mounting. The part is currently in active product status. Locating equivalent and substitute parts becomes necessary when managing inventory constraints, addressing supply chain disruptions, or evaluating performance improvements while maintaining circuit compatibility and functional requirements.

Substiute Parts

LPX221M350E3P3

Cornell Dubilier Electronics (CDE)In Stock: 948LPX221M350E3P3 Datasheet

Current PartRFQ

B43305B9227M000

EPCOS - TDK ElectronicsIn Stock: 274106B43305B9227M000 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are qualified based on the following critical parameters that determine electrical and mechanical compatibility:

• Capacitance: Must match at 220 µF
• Tolerance: Must match at ±20%
• Voltage Rating: Must equal or exceed the rated voltage (350 V minimum)
• Operating Temperature Range: Must cover or exceed -40°C ~ 85°C
• Polarization: Must remain polar
• Package Type: Must be radial, can snap-in configuration
• Lead Spacing: Must match at 0.394" (10.00 mm)
• Mounting Type: Must be through-hole compatible
• Compliance: RoHS3 and REACH certification required

The EPCOS B43305B9227M000 meets all these criteria with an elevated voltage rating of 400 V, which provides superior voltage margin while maintaining identical capacitance, tolerance, and physical form factor.

Parameter Comparison

Engineering Selection Recommendations

The LPX221M350E3P3 remains the primary selection for active product designs. The EPCOS B43305B9227M000 qualifies as a functional equivalent based on electrical parameter alignment and compliance certifications (ROHS3 and REACH unaffected status).

The B43305B9227M000 carries a "Not For New Designs" status, limiting its suitability for new development work. However, it meets all substitution criteria for applications requiring equivalent capacitance, tolerance, and operating range. The higher voltage rating (400 V vs. 350 V) and extended lifetime rating (2000 hrs vs. 1000 hrs @ 85°C) provide performance margin in existing designs where the original part faces supply constraints.

Physical dimensions differ slightly: the B43305B9227M000 has a smaller diameter (25.00 mm vs. 30.00 mm) but greater height (32.00 mm vs. 30.00 mm). PCB layout verification is necessary when substituting due to these dimensional variations.

Frequently Asked Questions (FAQ)

Q: Can the B43305B9227M000 directly replace the LPX221M350E3P3 in my circuit?

A: Electrical substitution is valid based on matching capacitance (220 µF), tolerance (±20%), and voltage rating compatibility. The B43305B9227M000 operates at 400 V, exceeding the minimum 350 V requirement. Physical layout changes must be evaluated due to dimensional differences (25.00 mm diameter vs. 30.00 mm, and height variation from 30.00 mm to 32.00 mm).

Q: What are the key compatibility parameters for substitution?

A: Critical parameters include capacitance value (220 µF), tolerance (±20%), minimum voltage rating (350 V), operating temperature range (-40°C ~ 85°C), lead spacing (10.00 mm), and package type (radial, can snap-in through-hole). Both parts meet these requirements.

Q: Does the "Not For New Designs" status affect functionality?

A: Product status indicates manufacturer lifecycle classification and does not affect electrical performance or compliance. The B43305B9227M000 meets all functional requirements for equivalent capacitor operation. However, new product development should prioritize the active-status LPX221M350E3P3 to ensure long-term component availability.

Q: How do the physical dimensions differ between these parts?

A: The LPX221M350E3P3 measures 30.00 mm diameter × 30.00 mm height, while the B43305B9227M000 measures 25.00 mm diameter × 32.00 mm height. Lead spacing remains identical at 10.00 mm. PCB footprint and board space availability must be verified during substitution planning.

Q: Are both parts RoHS and REACH compliant?

A: Both the LPX221M350E3P3 and B43305B9227M000 are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for electronic component selection.