LKX2D222MESC50 Equivalent & Substitute Parts

Part Overview

The Nichicon LKX2D222MESC50 is a 2200 µF, 200 V aluminum electrolytic capacitor in radial, can snap-in package designed for audio applications. This part is currently active in production. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and package compatibility to ensure direct replacement capability in circuit designs.

Key Parameters

Parameter	Specification
Capacitance	2200 µF
Tolerance	±20%
Voltage Rating	200 V
Lifetime @ Temperature	2000 Hrs @ 105°C
Operating Temperature Range	-40°C ~ 105°C
Lead Spacing	0.394" (10.00 mm)
Diameter	1.378" (35.00 mm)
Height (Seated Max)	2.047" (52.00 mm)
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the LKX2D222MESC50 are qualified based on the following criteria:

Capacitance: 2200 µF (exact match required)
Voltage Rating: 200 V (exact match required)
Tolerance: ±20% (exact match required)
Package Type: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Physical Dimensions: 1.378" Dia × 2.047" Height (exact match required)
Mounting Type: Through Hole (exact match required)
Operating Temperature Range: -40°C ~ 105°C (exact match required)
Compliance: ROHS3 Compliant (required for new designs)

All substitute parts listed meet these core electrical and mechanical parameters. Variations in lifetime rating, ripple current specifications, and ESR values are noted but do not disqualify substitution when electrical performance requirements are satisfied.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 105°C	ESR	Ripple Current @ 120 Hz	Product Status
LKX2D222MESC50	Nichicon	2200 µF	200 V	±20%	2000 Hrs	—	3.48 A	Active
381LR222M200A052	Cornell Dubilier Electronics (CDE)	2200 µF	200 V	±20%	3000 Hrs	66 mOhm @ 120 Hz	4.12 A	Active
381LX222M200A052	Cornell Dubilier Electronics (CDE)	2200 µF	200 V	±20%	3000 Hrs	—	2.9 A	Active
B43254A2228M000	EPCOS - TDK Electronics	2200 µF	200 V	±20%	3000 Hrs	—	3.68 A	Not For New Designs
B43504E2228M000	EPCOS - TDK Electronics	2200 µF	200 V	±20%	3000 Hrs	60 mOhm @ 100 Hz	4.4 A	Not For New Designs
B43504F2228M000	EPCOS - TDK Electronics	2200 µF	200 V	±20%	3000 Hrs	65 mOhm @ 100 Hz	4.43 A	Not For New Designs
B43509A2228M000	EPCOS - TDK Electronics	2200 µF	200 V	±20%	3000 Hrs	60 mOhm @ 100 Hz	3.36 A	Active

Engineering Selection Recommendations

For New Designs: The Cornell Dubilier Electronics 381LR222M200A052 and 381LX222M200A052, and the EPCOS B43509A2228M000 are recommended as primary substitutes. All three are active products with ROHS3 compliance and extended lifetime ratings of 3000 hours at 105°C, providing improved reliability over the original LKX2D222MESC50 specification of 2000 hours.

For Existing Designs: The EPCOS B43254A2228M000, B43504E2228M000, and B43504F2228M000 are electrically compatible but carry "Not For New Designs" status. These parts remain suitable for replacement in fielded equipment or legacy production runs where design changes are not feasible.

Compliance Consideration: All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original part's regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can I substitute the LKX2D222MESC50 with any of the listed parts? A: Yes. All listed parts match the required electrical specifications (2200 µF, 200 V, ±20% tolerance) and mechanical dimensions (35 mm diameter, 52 mm height, 10 mm lead spacing). Physical fit and electrical performance are equivalent.

Q: What is the difference between "Active" and "Not For New Designs" status? A: Active parts are currently in production and recommended for new circuit designs. "Not For New Designs" parts are still available but no longer recommended for new applications. Both remain suitable for replacement in existing equipment.

Q: Why do substitute parts show different lifetime ratings? A: The original LKX2D222MESC50 specifies 2000 hours at 105°C. Most substitutes offer 3000 hours at 105°C, representing improved reliability. This difference does not affect substitution compatibility; the longer lifetime is a performance advantage.

Q: Are there differences in ripple current handling? A: Ripple current specifications vary slightly among substitutes (ranging from 2.9 A to 4.43 A at 120 Hz). The original part specifies 3.48 A at 120 Hz. Verify that the selected substitute meets or exceeds your circuit's ripple current requirements.

Q: Does ESR (Equivalent Series Resistance) affect substitution? A: ESR values are provided for some parts but not all. When ESR is specified, values range from 60 to 66 mOhm. If your circuit has specific ESR requirements, select a substitute with published ESR data that meets those requirements. ESR does not prevent substitution when not specified.

Q: Can I use these parts interchangeably in audio applications? A: Yes. All substitute parts are rated for general purpose or audio applications and maintain the same package type, lead spacing, and mounting configuration as the original LKX2D222MESC50.

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