227LMX400M2CF Equivalent & Substitute Parts Reference

Part Overview

The 227LMX400M2CF is a 220 µF, 400 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the LMX series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring through-hole mounting with a rated lifetime of 5000 hours at 105°C. The part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, design flexibility, or application-specific performance needs.

Substiute Parts

227LMX400M2CF

Cornell Dubilier / Illinois CapacitorIn Stock: 688227LMX400M2CF Datasheet

Current PartRFQ

400VXH220MEFCSN25X30

RubyconIn Stock: 16389400VXH220MEFCSN25X30 Datasheet

DirectRFQ

ELXM401VSN221MQ40S

Chemi-ConIn Stock: 980ELXM401VSN221MQ40S Datasheet

UpgradeRFQ

ELXS451VSN221MQ40S

Chemi-ConIn Stock: 8504ELXS451VSN221MQ40S Datasheet

UpgradeRFQ

LGX2W221MELA40

NichiconIn Stock: 1743LGX2W221MELA40 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 227LMX400M2CF is determined by the following critical parameters:

Primary Compatibility Criteria:

• Capacitance value: 220 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage rating: 400 V minimum (equal or higher voltage acceptable)
• Package type: Radial, Can - Snap-In (exact match required)
• Mounting type: Through Hole (exact match required)
• Lead spacing: 0.394" (10.00 mm) (exact match required)
• Polarization: Polar (exact match required)
• Operating temperature range: -25°C to 105°C (exact match required)

Substitute Classification:

Direct Equivalent (Same Voltage Rating - 400 V):

• 400VXH220MEFCSN25X30 (Rubycon VXH series): Identical electrical and mechanical specifications with equivalent 5000-hour lifetime at 105°C.

Upgraded Performance (Higher Voltage Rating - 450 V):

• ELXM401VSN221MQ40S (Chemi-Con LXM series): Extended lifetime of 7000 hours at 105°C; voltage rating increased to 450 V.
• ELXS451VSN221MQ40S (Chemi-Con LXS series): Voltage rating increased to 450 V; 5000-hour lifetime at 105°C.
• LGX2W221MELA40 (Nichicon LGX series): Voltage rating increased to 450 V; 5000-hour lifetime at 105°C.

All substitute parts maintain identical capacitance, tolerance, package configuration, mounting type, lead spacing, and operating temperature range. Voltage rating upgrades provide additional design margin and are electrically compatible in 400 V applications.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent Selection: The 400VXH220MEFCSN25X30 (Rubycon VXH series) provides direct substitution with identical voltage rating, capacitance, tolerance, package configuration, and lifetime rating. This part is ROHS3 compliant and REACH unaffected, matching the regulatory status of the original 227LMX400M2CF.

Upgraded Performance Selection: The ELXM401VSN221MQ40S (Chemi-Con LXM series) offers extended operational lifetime of 7000 hours at 105°C compared to the standard 5000-hour rating. This part maintains 400 V voltage rating compatibility and is suitable for applications requiring enhanced reliability margins. RoHS compliance is confirmed.

Higher Voltage Rating Selection: The ELXS451VSN221MQ40S (Chemi-Con LXS series) and LGX2W221MELA40 (Nichicon LGX series) both feature 450 V voltage ratings, providing additional design margin in 400 V applications. Both parts are ROHS3 compliant and REACH unaffected. These selections are appropriate when circuit design permits higher voltage-rated components or when enhanced voltage headroom is required.

All substitute parts maintain Active product status and are available in production quantities.

Frequently Asked Questions (FAQ)

Q: Can the 400VXH220MEFCSN25X30 be used as a direct replacement for the 227LMX400M2CF?

A: Yes. The 400VXH220MEFCSN25X30 is a direct equivalent. Both parts share identical capacitance (220 µF), voltage rating (400 V), tolerance (±20%), package type (Radial, Can - Snap-In), lead spacing (0.394" / 10.00 mm), and lifetime rating (5000 hours at 105°C). Physical dimensions and mounting characteristics are compatible.

Q: Are the 450 V rated parts (ELXS451VSN221MQ40S and LGX2W221MELA40) compatible with a 400 V circuit?

A: Yes. A 450 V rated capacitor is electrically compatible in a 400 V application. The higher voltage rating provides additional design margin and does not affect circuit operation. The capacitance value, tolerance, and package configuration remain identical to the original part.

Q: What is the difference between the ELXM401VSN221MQ40S and other substitutes?

A: The ELXM401VSN221MQ40S differs in lifetime rating, offering 7000 hours at 105°C compared to the standard 5000-hour rating of other substitutes. This extended lifetime provides enhanced reliability for long-term applications. The voltage rating remains 400 V, matching the original part specification.

Q: Do all substitute parts have the same physical dimensions?

A: All substitute parts share the same lead spacing (0.394" / 10.00 mm) and mounting type (Through Hole, Radial, Can - Snap-In). Diameter and height specifications vary slightly between manufacturers. The 227LMX400M2CF, 400VXH220MEFCSN25X30, and LGX2W221MELA40 have 0.984" (25.00 mm) diameter. The ELXM401VSN221MQ40S and ELXS451VSN221MQ40S have 1.000" (25.40 mm) diameter. These minor dimensional differences do not affect snap-in mounting compatibility on standard PCB layouts.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes. All substitute parts are RoHS compliant (ROHS3 or RoHS designation) and REACH unaffected, matching the regulatory compliance of the original 227LMX400M2CF.

Q: Which substitute part should be selected for maximum reliability?

A: The ELXM401VSN221MQ40S (Chemi-Con LXM series) provides the longest operational lifetime at 7000 hours at 105°C, compared to 5000 hours for other options. This part is appropriate for applications requiring extended service life or operating in high-temperature environments.