LLS2G101MELY Equivalent & Substitute Parts

Part Overview

The LLS2G101MELY is a 100 µF, 400 V aluminum electrolytic capacitor manufactured by Nichicon in the LLS series. This radial, can-style snap-in capacitor is rated for 3000 hours at 85°C and operates across the temperature range of -25°C to 85°C. The part is Active status and ROHS3 compliant, making it suitable for general-purpose applications requiring reliable energy storage and filtering in power supply circuits.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when inventory constraints require sourcing from alternative manufacturers, or when design flexibility permits selection from qualified alternatives meeting identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Capacitance	100 µF
Voltage - Rated	400 V
Tolerance	±20%
Lifetime @ Temperature	3000 Hrs @ 85°C
Operating Temperature Range	-25°C ~ 85°C
Lead Spacing	0.394" (10.00 mm)
Mounting Type	Through Hole
Package / Case	Radial, Can - Snap-In
Polarization	Polar
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the LLS2G101MELY is determined by strict equivalence across the following critical parameters:

Capacitance Value: 100 µF (exact match required)
Voltage Rating: 400 V (minimum; higher ratings are acceptable)
Tolerance: ±20% (exact match required)
Mounting Type: Through Hole, Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Operating Temperature Range: -25°C ~ 85°C (minimum requirement)
Polarization: Polar (exact match required)
RoHS Compliance: ROHS3 Compliant (required for regulatory equivalence)

Substitute parts are grouped into two categories:

Category A - Nichicon LLS Series (Direct Manufacturer Equivalents)

LLS2G101MELZ: Identical electrical specifications; dimensional variation in diameter and height
LLS2W101MELY: Identical capacitance and tolerance; 450 V rated voltage (higher rating); dimensional variation in height

Category B - Cross-Manufacturer Equivalents

380LX101M400J012 (Cornell Dubilier Electronics)
ELH107M400AQ2AA and ELH107M400AR1AA (KEMET)
MAL215756101E3 (Vishay Beyschlag/Draloric/BC Components)
SLPX101M400A3P3 (Cornell Dubilier Electronics)

All substitute parts meet the core electrical requirements (100 µF, 400 V, ±20% tolerance) and maintain through-hole, snap-in package compatibility with 10.00 mm lead spacing.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ 85°C	Lead Spacing	Diameter	Height (Max)	RoHS Status
LLS2G101MELY	Nichicon	100 µF	400 V	±20%	3000 Hrs	0.394" (10.00 mm)	0.787" (20.00 mm)	1.181" (30.00 mm)	ROHS3
LLS2G101MELZ	Nichicon	100 µF	400 V	±20%	3000 Hrs	0.394" (10.00 mm)	0.866" (22.00 mm)	0.984" (25.00 mm)	ROHS3
LLS2W101MELY	Nichicon	100 µF	450 V	±20%	3000 Hrs	0.394" (10.00 mm)	0.787" (20.00 mm)	1.378" (35.00 mm)	ROHS3
380LX101M400J012	Cornell Dubilier Electronics	100 µF	400 V	±20%	3000 Hrs	0.394" (10.00 mm)	0.984" (25.00 mm)	1.063" (27.00 mm)	ROHS3
ELH107M400AQ2AA	KEMET	100 µF	400 V	±20%	2000 Hrs	0.394" (10.00 mm)	0.866" (22.00 mm)	1.260" (32.00 mm)	ROHS3
ELH107M400AR1AA	KEMET	100 µF	400 V	±20%	2000 Hrs	0.394" (10.00 mm)	0.984" (25.00 mm)	1.063" (27.00 mm)	ROHS3
MAL215756101E3	Vishay Beyschlag/Draloric/BC Components	100 µF	400 V	±20%	5000 Hrs	0.394" (10.00 mm)	0.866" (22.00 mm)	1.260" (32.00 mm)	ROHS3
SLPX101M400A3P3	Cornell Dubilier Electronics	100 µF	400 V	±20%	3000 Hrs	0.394" (10.00 mm)	0.866" (22.00 mm)	1.181" (30.00 mm)	ROHS3

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and ROHS3 compliance, qualifying them for direct substitution in applications where the LLS2G101MELY is specified.

Nichicon LLS Series Substitutes (LLS2G101MELZ, LLS2W101MELY): These parts offer the advantage of manufacturer continuity within the Nichicon LLS product line. Dimensional variations exist but do not affect electrical performance. LLS2W101MELY provides a higher voltage rating (450 V) while maintaining identical capacitance and tolerance specifications.

Cross-Manufacturer Substitutes: Parts from Cornell Dubilier Electronics, KEMET, and Vishay maintain electrical equivalence across the 100 µF, 400 V, ±20% tolerance specification. Dimensional variations occur across all substitute options; physical fit verification in the target application is necessary prior to implementation.

Lifetime Considerations: The LLS2G101MELY and most substitutes are rated for 3000 hours at 85°C. MAL215756101E3 offers extended lifetime at 5000 hours at 85°C. KEMET ELH series parts (ELH107M400AQ2AA, ELH107M400AR1AA) are rated for 2000 hours at 85°C, representing a reduced operational lifetime.

Frequently Asked Questions (FAQ)

Q: Can I substitute LLS2W101MELY for LLS2G101MELY? A: Yes. LLS2W101MELY is electrically equivalent with identical 100 µF capacitance and ±20% tolerance. The 450 V rating exceeds the 400 V requirement. Physical dimensions differ; verify that the increased height (1.378" vs. 1.181") accommodates your PCB layout and enclosure constraints.

Q: What is the difference between Nichicon and cross-manufacturer substitutes? A: Nichicon LLS series substitutes (LLS2G101MELZ, LLS2W101MELY) maintain manufacturer consistency and series continuity. Cross-manufacturer parts (Cornell Dubilier, KEMET, Vishay) provide equivalent electrical performance but may exhibit different ESR characteristics, ripple current ratings, and physical dimensions. All maintain the required 10.00 mm lead spacing and snap-in package configuration.

Q: Are dimensional differences critical for substitution? A: Lead spacing (10.00 mm) and mounting type (through-hole, snap-in) are fixed across all substitutes. Diameter and height variations require verification against your PCB footprint, available board space, and enclosure clearances. Snap-in mounting compatibility is maintained across all options.

Q: Do all substitutes meet RoHS compliance? A: Yes. All listed substitute parts are ROHS3 compliant, matching the compliance status of the LLS2G101MELY.

Q: Which substitute offers the longest operational lifetime? A: MAL215756101E3 is rated for 5000 hours at 85°C, compared to 3000 hours for the LLS2G101MELY and most other substitutes. KEMET ELH series parts are rated for 2000 hours at 85°C.

Q: Can I use a higher voltage-rated capacitor as a substitute? A: Yes. LLS2W101MELY (450 V) exceeds the 400 V requirement and is electrically compatible. Higher voltage ratings do not degrade performance in 400 V applications. Verify physical dimensions fit your design.

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