LPX221M400H1P3 Equivalent & Substitute Parts

Part Overview

The LPX221M400H1P3 is a 220 µF, 400 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 currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when application requirements necessitate different performance characteristics within the same electrical and mechanical envelope.

Substiute Parts

LPX221M400H1P3

Cornell Dubilier Electronics (CDE)In Stock: 1182LPX221M400H1P3 Datasheet

Current PartRFQ

227LBB400M2EC

Cornell Dubilier / Illinois CapacitorIn Stock: 2131227LBB400M2EC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LPX221M400H1P3 is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Capacitance: 220 µF
• Voltage Rating: 400 V
• Tolerance: ±20%
• Polarization: Polar

Mechanical Parameters (Must Match):

• Package Type: Radial, Can - Snap-In
• Mounting Type: Through Hole
• Lead Spacing: 0.394" (10.00mm)
• Diameter: 1.378" (35.00mm)

Compliance Parameters (Must Match):

• RoHS3 Compliance
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute part 227LBB400M2EC meets all mandatory electrical and mechanical criteria. Variations in ESR, ripple current ratings, and lifetime specifications do not disqualify substitution when the core parameters align. Height variation (0.984" vs. 1.063") remains within acceptable mechanical tolerance for snap-in mounting applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (LPX221M400H1P3): Select the LPX221M400H1P3 when the original design specification explicitly requires the lower ESR characteristic (904 mOhm @ 120Hz) or when inventory availability of the primary part is confirmed. This part maintains active production status with full RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute Part Selection (227LBB400M2EC): The 227LBB400M2EC is a direct electrical and mechanical substitute. Select this part when:

• The LPX221M400H1P3 is unavailable from inventory
• The application tolerates the higher ESR specification (1.13036 Ohm @ 120Hz)
• Extended lifetime performance (3000 Hrs @ 85°C vs. 1000 Hrs) is beneficial
• The 2 mm height increase (27.00mm vs. 25.00mm) does not conflict with PCB layout constraints

Both parts are manufactured by Cornell Dubilier or affiliated entities, maintain identical electrical ratings, and share the same snap-in mounting interface. The substitute part is currently in active production with full compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can the 227LBB400M2EC replace the LPX221M400H1P3 in existing designs?

A: Yes. Both parts share identical capacitance (220 µF), voltage rating (400 V), tolerance (±20%), and mechanical mounting specifications (radial snap-in, 10mm lead spacing, 35mm diameter). The 2 mm height difference (27.00mm vs. 25.00mm) must be verified against PCB clearance requirements.

Q: What is the significance of the ESR difference between these parts?

A: The LPX221M400H1P3 has lower ESR (904 mOhm @ 120Hz) compared to the 227LBB400M2EC (1.13036 Ohm @ 120Hz). ESR affects ripple current handling and heat dissipation. Applications with strict ESR requirements should retain the primary part. Applications with general-purpose filtering requirements tolerate the higher ESR of the substitute.

Q: Does the extended lifetime of the 227LBB400M2EC affect compatibility?

A: No. Extended lifetime (3000 Hrs @ 85°C vs. 1000 Hrs) is a performance enhancement and does not create incompatibility. The substitute part exceeds the minimum lifetime specification of the primary part.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the LPX221M400H1P3 and 227LBB400M2EC are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity). Both parts are REACH unaffected and classified as EAR99 for export control purposes.

Q: What is the lead spacing tolerance for these snap-in capacitors?

A: Both parts specify 0.394" (10.00mm) lead spacing. This dimension is critical for PCB pad layout and snap-in mounting fixture compatibility. Verify PCB design files match this specification before substitution.

Q: Can these parts be used in high-ripple-current applications?

A: The 227LBB400M2EC supports higher ripple current ratings (1.66 A @ 120 Hz, 2.4402 A @ 10 kHz) compared to the LPX221M400H1P3 (1.2 A @ 120 Hz, 1.44 A @ 50 kHz). For applications requiring maximum ripple current handling, the substitute part provides superior performance.

Q: What is the operating temperature range for both parts?

A: Both parts operate across -40°C to 85°C. Lifetime specifications are rated at 85°C maximum operating temperature. Applications operating below 85°C will extend actual component life beyond the rated specifications.