Equivalent & Substitute Parts for LLS2D821MELZ

Part Overview

The LLS2D821MELZ is a 820 µF, 200 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Nichicon. This component is classified as Active product status and is designed for general-purpose applications requiring stable capacitance and reliable performance across industrial temperature ranges. The part is RoHS3 compliant and REACH unaffected, meeting modern environmental standards.

Substitute parts are necessary when the original LLS2D821MELZ becomes unavailable due to inventory constraints, supply chain disruptions, or when design requirements necessitate enhanced thermal performance or alternative electrical characteristics within the same functional category.

Key Parameters

Parameter	Value
Capacitance	820 µF
Tolerance	±20%
Voltage - Rated	200 V
Lifetime @ Temperature	3000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Polarization	Polar
Lead Spacing	0.394" (10.00mm)
Mounting Type	Through Hole
Package / Case	Radial, Can - Snap-In
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the LLS2D821MELZ is determined by strict adherence to the following parameters:

Primary Substitution Criteria (Must Match):

Capacitance: 820 µF
Tolerance: ±20%
Voltage - Rated: 200 V
Polarization: Polar
Lead Spacing: 0.394" (10.00mm)
Mounting Type: Through Hole
Package / Case: Radial, Can - Snap-In

Secondary Substitution Parameters (Allowable Variation):

Operating Temperature Range: May extend beyond -40°C ~ 85°C
Lifetime @ Temperature: May exceed 3000 Hrs @ 85°C
Physical Dimensions (Diameter, Height): May vary within mechanical constraints
Ripple Current Ratings: May vary based on design specifications
ESR (Equivalent Series Resistance): May be specified or unspecified

All substitute parts listed maintain identical electrical specifications for capacitance, voltage rating, and tolerance, ensuring direct functional equivalence in circuit applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ Temp.	Operating Temp. Range	Size / Dimension (Dia)	Height - Seated (Max)	Ripple Current @ 120 Hz	RoHS Status
LLS2D821MELZ	Nichicon	820 µF	200 V	±20%	3000 Hrs @ 85°C	-40°C ~ 85°C	0.866" (22.00mm)	1.772" (45.00mm)	2.81 A	ROHS3 Compliant
LGW2D821MELZ45	Nichicon	820 µF	200 V	±20%	3000 Hrs @ 105°C	-40°C ~ 105°C	0.866" (22.00mm)	1.772" (45.00mm)	2.65 A	ROHS3 Compliant
LLS2D821MELA	Nichicon	820 µF	200 V	±20%	3000 Hrs @ 85°C	-40°C ~ 85°C	0.984" (25.00mm)	1.378" (35.00mm)	2.79 A	ROHS3 Compliant
LLS2D821MELB	Nichicon	820 µF	200 V	±20%	3000 Hrs @ 85°C	-40°C ~ 85°C	1.181" (30.00mm)	1.181" (30.00mm)	2.8 A	ROHS3 Compliant
380LX821M200A012	Cornell Dubilier Electronics (CDE)	820 µF	200 V	±20%	3000 Hrs @ 85°C	-40°C ~ 85°C	1.378" (35.00mm)	1.063" (27.00mm)	2.9 A	ROHS3 Compliant
LPX821M200E5P3	Cornell Dubilier Electronics (CDE)	820 µF	200 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	1.181" (30.00mm)	1.378" (35.00mm)	2.7 A	ROHS3 Compliant
SLPX821M200C7P3	Cornell Dubilier Electronics (CDE)	820 µF	200 V	±20%	3000 Hrs @ 85°C	-40°C ~ 85°C	0.984" (25.00mm)	1.575" (40.00mm)	2.79 A	ROHS3 Compliant

Engineering Selection Recommendations

Upgrade Path - Enhanced Thermal Performance: LGW2D821MELZ45 (Nichicon) extends the operating temperature range to -40°C ~ 105°C with 3000 Hrs lifetime at 105°C, providing superior thermal stability compared to the original LLS2D821MELZ. This part maintains identical physical footprint and electrical specifications while offering extended reliability in elevated-temperature environments. All compliance certifications remain equivalent (ROHS3 Compliant, REACH Unaffected).

Direct Equivalents - Same Thermal Specifications: LLS2D821MELA and LLS2D821MELB (Nichicon) maintain identical electrical and thermal characteristics to the original part (3000 Hrs @ 85°C, -40°C ~ 85°C operating range). These parts differ only in physical dimensions and are suitable for applications where PCB layout constraints permit alternative form factors. Both retain full ROHS3 compliance.

Cross-Manufacturer Alternatives - CDE Series: 380LX821M200A012, LPX821M200E5P3, and SLPX821M200C7P3 (Cornell Dubilier Electronics) provide functional equivalence with identical capacitance, voltage, and tolerance specifications. SLPX821M200C7P3 matches the original thermal rating (3000 Hrs @ 85°C), while LPX821M200E5P3 specifies reduced lifetime (1000 Hrs @ 85°C). All CDE alternatives maintain ROHS3 compliance and REACH unaffected status. Physical dimensions vary across the CDE lineup; verify PCB mounting constraints before selection.

Selection Criteria:

For thermal-demanding applications: Select LGW2D821MELZ45
For space-constrained designs: Evaluate LLS2D821MELA or LLS2D821MELB based on available PCB area
For cross-manufacturer sourcing: SLPX821M200C7P3 provides equivalent thermal performance; LPX821M200E5P3 acceptable only for lower-stress applications
All listed parts maintain Active product status and current manufacturing availability

Frequently Asked Questions (FAQ)

Q: Can LGW2D821MELZ45 be used as a direct replacement for LLS2D821MELZ? A: Yes. LGW2D821MELZ45 maintains identical capacitance (820 µF), voltage rating (200 V), tolerance (±20%), lead spacing (10.00mm), and package type (Radial, Can - Snap-In). The primary difference is extended operating temperature range (-40°C ~ 105°C versus -40°C ~ 85°C) and lifetime rating (3000 Hrs @ 105°C). This represents an upgrade path with no functional degradation.

Q: What is the difference between LLS2D821MELA and LLS2D821MELB? A: Both parts are Nichicon LLS series capacitors with identical electrical specifications (820 µF, 200 V, ±20%, 3000 Hrs @ 85°C). The differences are purely mechanical: LLS2D821MELA has 0.984" diameter and 1.378" height, while LLS2D821MELB has 1.181" diameter and 1.181" height. Selection depends on available PCB mounting space.

Q: Are Cornell Dubilier Electronics (CDE) parts fully compatible with Nichicon parts? A: CDE parts (380LX821M200A012, LPX821M200E5P3, SLPX821M200C7P3) match all critical electrical parameters: 820 µF capacitance, 200 V voltage rating, ±20% tolerance, 10.00mm lead spacing, and radial snap-in package. Physical dimensions vary; verify PCB layout compatibility. All maintain ROHS3 compliance and REACH unaffected status.

Q: Which substitute part has the shortest lifetime rating? A: LPX821M200E5P3 specifies 1000 Hrs @ 85°C, compared to 3000 Hrs @ 85°C for all other listed parts. This part is suitable only for applications with lower thermal stress or shorter operational duty cycles.

Q: Do all substitute parts have identical ripple current ratings? A: No. Ripple current ratings vary slightly across the substitute lineup, ranging from 2.65 A to 2.9 A @ 120 Hz. Verify that the selected substitute meets the ripple current requirements of your specific circuit application.

Q: Are there any MSL (Moisture Sensitivity Level) differences between substitutes? A: LLS2D821MELZ, LGW2D821MELZ45, LLS2D821MELA, and LLS2D821MELB specify MSL as Not Applicable. CDE parts (380LX821M200A012, LPX821M200E5P3, SLPX821M200C7P3) specify MSL 1 (Unlimited). This difference does not affect substitution eligibility for through-hole mounted components.

Q: Can LPX821M200E5P3 be used in applications requiring 3000-hour lifetime? A: No. LPX821M200E5P3 is rated for 1000 Hrs @ 85°C. For applications requiring 3000-hour lifetime, select LLS2D821MELZ, LGW2D821MELZ45, LLS2D821MELA, LLS2D821MELB, 380LX821M200A012, or SLPX821M200C7P3.

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