Equivalent & Substitute Parts for LLS2D122MELC

Part Overview

The LLS2D122MELC is a 1200 µF, 200 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Nichicon. This component is designed for general-purpose applications requiring stable capacitance performance over extended operational life. The part is currently active in production with 273,882 units in stock. Substitute parts are necessary when the primary part becomes unavailable, when design requirements allow for higher voltage ratings, or when alternative manufacturers' components meet the same electrical and mechanical specifications.

Key Parameters

Parameter	Value
Capacitance	1200 µF
Voltage Rating	200 V
Tolerance	±20%
Lifetime @ Temperature	3000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Package Type	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00mm)
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the LLS2D122MELC is determined by the following criteria:

Primary Substitution Criteria:

Capacitance: 1200 µF (exact match required)
Tolerance: ±20% (exact match required)
Voltage Rating: 200 V minimum (equal or higher voltage ratings are acceptable)
Package Type: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Operating Temperature Range: -40°C ~ 85°C (exact match required)
Lifetime @ Temperature: 3000 Hrs @ 85°C (exact match required)
Polarization: Polar (exact match required)
RoHS Status: ROHS3 Compliant (exact match required)

Acceptable Variations:

Physical dimensions (diameter and height) may vary within the snap-in package envelope
Ripple current ratings may vary based on manufacturer design
ESR values may differ between manufacturers

Parameter Comparison

Parameter	LLS2D122MELC (Main)	LLS2D122MELB	LLS2E122MELC	SLPX122M200H5P3
Manufacturer	Nichicon	Nichicon	Nichicon	Cornell Dubilier Electronics (CDE)
Capacitance	1200 µF	1200 µF	1200 µF	1200 µF
Voltage Rating	200 V	200 V	250 V	200 V
Tolerance	±20%	±20%	±20%	±20%
Lifetime @ Temperature	3000 Hrs @ 85°C	3000 Hrs @ 85°C	3000 Hrs @ 85°C	3000 Hrs @ 85°C
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Lead Spacing	0.394" (10.00mm)	0.394" (10.00mm)	0.394" (10.00mm)	0.394" (10.00mm)
Package Type	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Ripple Current @ 120 Hz	4.67 A	3.61 A	3.84 A	4.67 A
Ripple Current @ High Frequency	5.355 A @ 50 kHz	5.415 A @ 50 kHz	5.76 A @ 50 kHz	5.25 A @ 20 kHz
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All listed substitute parts meet the core electrical and mechanical requirements for direct replacement of the LLS2D122MELC in applications requiring 1200 µF capacitance at 200 V or higher.

LLS2D122MELB (Nichicon): Direct equivalent with identical electrical specifications. Physical dimensions differ (1.181" diameter × 1.378" height versus 1.378" diameter × 1.181" height), representing a rotated can orientation within the same snap-in package family. Both parts are ROHS3 compliant and active in production.

LLS2E122MELC (Nichicon): Rated for 250 V, exceeding the 200 V requirement of the main part. All other electrical parameters match the LLS2D122MELC. This part is suitable for applications where higher voltage margin is acceptable or required. ROHS3 compliant and active in production.

SLPX122M200H5P3 (Cornell Dubilier Electronics): Equivalent 1200 µF, 200 V capacitor from an alternative manufacturer. Electrical specifications align with the main part. ESR is specified at 166 mOhm @ 120 Hz. All compliance certifications match. Active in production with 1,054 units in stock.

All substitute parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 and HTSUS 8532.22.0040, matching the regulatory status of the main part.

Frequently Asked Questions (FAQ)

Q: Can LLS2D122MELB be used as a direct replacement for LLS2D122MELC?

A: Yes. Both parts share identical electrical specifications: 1200 µF, ±20% tolerance, 200 V rating, 3000 Hrs @ 85°C lifetime, and -40°C ~ 85°C operating range. The physical dimensions differ in orientation (diameter and height are swapped), but both conform to the radial, can snap-in package standard with 0.394" (10.00mm) lead spacing. PCB layout must accommodate the dimensional difference.

Q: Is LLS2E122MELC compatible with circuits designed for LLS2D122MELC?

A: Yes, with the consideration that LLS2E122MELC is rated for 250 V versus 200 V. The higher voltage rating provides additional safety margin in the circuit. All other parameters—capacitance, tolerance, temperature range, lifetime, and package dimensions—are identical. This part is suitable for direct substitution.

Q: What is the difference between Nichicon and Cornell Dubilier Electronics versions?

A: Both manufacturers provide 1200 µF, 200 V aluminum electrolytic capacitors in identical packages with matching electrical specifications. The SLPX122M200H5P3 from Cornell Dubilier Electronics specifies ESR at 166 mOhm @ 120 Hz. Selection between manufacturers depends on supply availability, cost, and any existing qualification requirements in the design documentation.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. LLS2D122MELB, LLS2E122MELC, and SLPX122M200H5P3 are all ROHS3 compliant, matching the compliance status of the main part LLS2D122MELC.

Q: Can physical dimension differences affect PCB assembly?

A: Yes. LLS2D122MELB has different diameter and height dimensions compared to LLS2D122MELC, though both use the same 0.394" (10.00mm) lead spacing. PCB footprints and component placement must be verified to ensure the substitute part fits within the available board space. LLS2E122MELC and SLPX122M200H5P3 maintain identical dimensions to the main part.

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