LPX331M250C3P3 Equivalent & Substitute Parts

Part Overview

The LPX331M250C3P3 is a 330 µF, 250 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in the LPX series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring through-hole mounting. The part is Active status and RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, design optimization, or application-specific thermal requirements.

Substiute Parts

LPX331M250C3P3

Cornell Dubilier Electronics (CDE)In Stock: 772LPX331M250C3P3 Datasheet

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SLPX331M250C1P3

Cornell Dubilier Electronics (CDE)In Stock: 2643SLPX331M250C1P3 Datasheet

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380LQ331M250H022

Cornell Dubilier Electronics (CDE)In Stock: 1162380LQ331M250H022 Datasheet

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LPX331M250A5P3

Cornell Dubilier Electronics (CDE)In Stock: 2204LPX331M250A5P3 Datasheet

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SLPX331M250A3P3

Cornell Dubilier Electronics (CDE)In Stock: 1317SLPX331M250A3P3 Datasheet

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LGU2E331MELA

NichiconIn Stock: 2244LGU2E331MELA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LPX331M250C3P3 are classified based on strict electrical and mechanical compatibility criteria. All substitute parts maintain the following core parameters identical to the main part:

• Capacitance: 330 µF
• Voltage Rating: 250 V
• Tolerance: ±20%
• Polarization: Polar
• Lead Spacing: 10.00 mm
• Mounting Type: Through Hole
• Package / Case: Radial, Can - Snap-In
• RoHS3 Compliance: Yes

Substitutes are differentiated by variations in the following parameters:

• Lifetime @ Temperature rating (1000 Hrs @ 85°C, 2000 Hrs @ 85°C, or 3000 Hrs @ 85°C/105°C)
• Physical dimensions (diameter and height)
• ESR characteristics
• Ripple current ratings at different frequencies
• Operating temperature maximum (85°C or 105°C)
• Manufacturer (Cornell Dubilier Electronics or Nichicon)

Parameter Comparison

Engineering Selection Recommendations

Selection of substitute parts for the LPX331M250C3P3 is determined by application requirements and physical space constraints:

SLPX331M250C1P3 (CDE, SLPX series): Direct upgrade with identical diameter (25.00 mm) and reduced height (25.00 mm vs. 30.00 mm). Provides extended lifetime of 3000 Hrs @ 85°C. Suitable for applications requiring compact vertical profile with enhanced reliability. RoHS3 compliant, Active status.

380LQ331M250H022 (CDE, 380LQ series): Reduced diameter (22.00 mm) with increased height (32.00 mm). Lifetime rating of 2000 Hrs @ 85°C. Suitable for applications with horizontal space constraints. RoHS3 compliant, Active status.

LPX331M250A5P3 (CDE, LPX series): Same series as main part with reduced diameter (22.00 mm) and increased height (35.00 mm). Maintains 1000 Hrs @ 85°C lifetime. Suitable for applications with limited radial space. RoHS3 compliant, Active status.

SLPX331M250A3P3 (CDE, SLPX series): Reduced diameter (22.00 mm) with standard height (30.00 mm). Extended lifetime of 3000 Hrs @ 85°C. Optimal for space-constrained applications requiring enhanced reliability. RoHS3 compliant, Active status.

LGU2E331MELA (Nichicon, LGU series): Identical diameter (25.00 mm) and height (30.00 mm) to main part. Extended operating temperature range (-40°C ~ 105°C) with 3000 Hrs @ 105°C lifetime. Suitable for high-temperature applications. RoHS3 compliant, Active status. Different manufacturer requires qualification per design requirements.

All substitute parts maintain RoHS3 compliance, REACH unaffected status, and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can SLPX331M250C1P3 replace LPX331M250C3P3 in existing PCB layouts?

A: SLPX331M250C1P3 maintains identical lead spacing (10.00 mm) and diameter (25.00 mm), ensuring footprint compatibility. Height is reduced from 30.00 mm to 25.00 mm, which is acceptable for through-hole mounting. Verify clearance above the component in the application.

Q: What is the primary difference between LPX331M250C3P3 and LPX331M250A5P3?

A: Both parts are from the CDE LPX series with identical electrical specifications (330 µF, 250 V, 603 mOhm ESR, 1000 Hrs @ 85°C). The difference is physical: LPX331M250A5P3 has reduced diameter (22.00 mm vs. 25.00 mm) and increased height (35.00 mm vs. 30.00 mm). Select based on available PCB space.

Q: Is LGU2E331MELA suitable for applications operating above 85°C?

A: LGU2E331MELA operates to 105°C maximum with 3000 Hrs lifetime rating at 105°C, compared to LPX331M250C3P3 which operates to 85°C with 1000 Hrs lifetime at 85°C. LGU2E331MELA is suitable for elevated temperature applications. Manufacturer qualification may be required.

Q: What are the ripple current differences between substitute parts?

A: Ripple current ratings vary by part and frequency. At 120 Hz, ratings range from 1.3 A (LGU2E331MELA) to 1.7 A (LPX331M250C3P3 and LPX331M250A5P3). At high frequency (20-50 kHz), ratings range from 1.87 A to 2.44 A. Select based on circuit ripple current requirements at operating frequency.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant and REACH unaffected, matching the compliance status of LPX331M250C3P3.

Q: Can 380LQ331M250H022 be used in space-constrained horizontal layouts?

A: 380LQ331M250H022 has reduced diameter (22.00 mm vs. 25.00 mm), making it suitable for applications with limited radial space. Height is increased to 32.00 mm. Lead spacing remains 10.00 mm for PCB compatibility. Verify vertical clearance in the application.

Q: What is the inventory status of substitute parts?

A: SLPX331M250C1P3: 2553 Pcs; 380LQ331M250H022: 1110 Pcs; LPX331M250A5P3: 2141 Pcs; SLPX331M250A3P3: 1222 Pcs; LGU2E331MELA: 2227 Pcs. Main part LPX331M250C3P3: 731 Pcs.