229LBB035M2EF Aluminum Electrolytic Capacitor Equivalent & Substitute Parts

Part Overview

The 229LBB035M2EF is a 22000 µF, 35 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the LBB series. This radial, can-type snap-in capacitor is designed for general purpose applications with rated specifications of ±20% tolerance, 3000 hours lifetime at 85°C, and operating temperature range of -40°C to 85°C. The part is currently in active production status with 680 units in stock. Substitute parts are necessary for applications requiring alternative sourcing options, inventory optimization, or when the primary part becomes unavailable from stock.

Key Parameters

Parameter	Value
Capacitance	22000 µF
Voltage Rating	35 V
Tolerance	±20%
Lifetime @ Temperature	3000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
ESR @ 120Hz	18.84 mOhm
Mounting Type	Through Hole
Package Type	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00mm)
Case Diameter	1.378" (35.00mm)
Height (Seated Max)	1.654" (42.00mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

The 380LX223M035A042 qualifies as a parametric equivalent to the 229LBB035M2EF based on the following matching specifications:

Matching Critical Parameters:

Capacitance: 22000 µF (identical)
Voltage Rating: 35 V (identical)
Tolerance: ±20% (identical)
Lifetime: 3000 Hrs @ 85°C (identical)
Operating Temperature Range: -40°C ~ 85°C (identical)
Package Type: Radial, Can - Snap-In (identical)
Lead Spacing: 0.394" (10.00mm) (identical)
Case Diameter: 1.378" (35.00mm) (identical)
Height (Seated Max): 1.654" (42.00mm) (identical)
Polarization: Polar (identical)
Mounting Type: Through Hole (identical)
RoHS Status: ROHS3 Compliant (identical)

Both parts share identical mechanical and electrical specifications that determine interchangeability in circuit applications. The substitute part is from the 380LX series manufactured by Cornell Dubilier Electronics (CDE).

Parameter Comparison

Parameter	229LBB035M2EF	380LX223M035A042
Manufacturer	Cornell Dubilier / Illinois Capacitor	Cornell Dubilier Electronics (CDE)
Series	LBB	380LX
Capacitance	22000 µF	22000 µF
Voltage Rating	35 V	35 V
Tolerance	±20%	±20%
ESR @ 120Hz	18.84 mOhm	26 mOhm
Lifetime @ 85°C	3000 Hrs	3000 Hrs
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Ripple Current @ 120 Hz	5.41 A	6.1 A
Ripple Current @ High Frequency	6.7625 A @ 10 kHz	7 A @ 20 kHz
Lead Spacing	0.394" (10.00mm)	0.394" (10.00mm)
Case Diameter	1.378" (35.00mm)	1.378" (35.00mm)
Height (Seated Max)	1.654" (42.00mm)	1.654" (42.00mm)
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In
Mounting Type	Through Hole	Through Hole
Product Status	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Both the 229LBB035M2EF and 380LX223M035A042 are active production parts with ROHS3 compliance and unrestricted moisture sensitivity levels (MSL 1). The primary electrical difference is the ESR specification: the 229LBB035M2EF exhibits lower ESR at 18.84 mOhm compared to the 380LX223M035A042 at 26 mOhm. Both parts maintain identical mechanical dimensions, mounting interfaces, and thermal specifications, ensuring direct compatibility in through-hole applications.

The 380LX223M035A042 offers higher ripple current capacity at both low and high frequencies, providing performance headroom for applications with elevated ripple current demands. Both parts are subject to identical regulatory classifications (ECCN: EAR99; HTSUS: 8532.22.0040) and maintain REACH unaffected status.

Frequently Asked Questions (FAQ)

Q: Can the 380LX223M035A042 directly replace the 229LBB035M2EF in existing designs?

A: Yes. Both parts share identical capacitance, voltage rating, tolerance, case dimensions, lead spacing, and mounting type. The mechanical and electrical interface compatibility is complete for snap-in through-hole mounting applications.

Q: What is the difference in ESR between these two parts?

A: The 229LBB035M2EF has an ESR of 18.84 mOhm at 120Hz, while the 380LX223M035A042 has an ESR of 26 mOhm at 120Hz. This 7.16 mOhm difference may be relevant in high-frequency ripple current filtering applications where lower impedance is critical.

Q: Are there any temperature or humidity considerations for using either part?

A: Both parts operate identically across the temperature range of -40°C to 85°C and have MSL rating 1, indicating unlimited moisture sensitivity protection. No operational restrictions apply based on environmental exposure.

Q: What are the ripple current ratings for each part?

A: At 120 Hz, the 229LBB035M2EF is rated for 5.41 A and the 380LX223M035A042 for 6.1 A. At high frequencies, the 229LBB035M2EF is rated for 6.7625 A @ 10 kHz and the 380LX223M035A042 for 7 A @ 20 kHz. The 380LX series provides higher ripple current capacity.

Q: Are both parts RoHS compliant?

A: Yes. Both the 229LBB035M2EF and 380LX223M035A042 are ROHS3 compliant and REACH unaffected.

Q: What is the packaging difference between the two parts?

A: The 229LBB035M2EF is supplied in standard packaging, while the 380LX223M035A042 is supplied in bulk packaging. Both use identical snap-in can construction with radial lead configuration.

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