LLS1K392MELZ Equivalent & Substitute Parts

Part Overview

The LLS1K392MELZ is a 3900 µF, 80 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Nichicon. This component is designed for general purpose applications requiring high capacitance at moderate voltage ratings with a 3000-hour lifetime at 85°C. The part is currently active in production and ROHS3 compliant.

Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain considerations, or specific performance parameters within the allowed electrical and mechanical specifications for this capacitor category.

Key Parameters

Parameter	Value
Capacitance	3900 µF
Tolerance	±20%
Voltage - Rated	80 V
Lifetime @ Temperature	3000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Polarization	Polar
Mounting Type	Through Hole
Package / Case	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the LLS1K392MELZ are qualified based on the following criteria:

Identical capacitance value: 3900 µF
Identical voltage rating: 80 V
Identical tolerance: ±20%
Identical lifetime specification: 3000 Hrs @ 85°C
Identical operating temperature range: -40°C ~ 85°C
Identical polarization: Polar
Identical mounting type: Through Hole
Identical package type: Radial, Can - Snap-In
Identical lead spacing: 0.394" (10.00mm)
ROHS3 compliance maintained

Physical dimensions (diameter and height) may vary within the constraints of the snap-in package form factor, as the lead spacing and electrical specifications remain constant. Equivalent Series Resistance (ESR) and ripple current ratings may differ between manufacturers while maintaining functional equivalence for general purpose applications.

Parameter Comparison

Parameter	LLS1K392MELZ (Nichicon)	380LX392M080J452 (CDE)	SLPX392M080E5P3 (CDE)
Capacitance	3900 µF	3900 µF	3900 µF
Tolerance	±20%	±20%	±20%
Voltage - Rated	80 V	80 V	80 V
Lifetime @ Temperature	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
Polarization	Polar	Polar	Polar
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Lead Spacing	0.394" (10.00mm)	0.394" (10.00mm)	0.394" (10.00mm)
Size / Dimension (Diameter)	0.866" (22.00mm)	0.984" (25.00mm)	1.181" (30.00mm)
Height - Seated (Max)	2.047" (52.00mm)	1.850" (47.00mm)	1.378" (35.00mm)
ESR @ 120Hz	Not specified	80 mOhm	85 mOhm
Ripple Current @ 120 Hz	3.62 A	3.6 A	3.7 A
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active

Engineering Selection Recommendations

All three parts—LLS1K392MELZ, 380LX392M080J452, and SLPX392M080E5P3—meet the core electrical and mechanical requirements for direct substitution in applications requiring 3900 µF, 80 V aluminum electrolytic capacitors with snap-in mounting.

Selection between these parts should be based on:

PCB layout constraints: Physical dimensions vary; verify available board space for diameter and height clearance
Lead spacing compatibility: All parts maintain 0.394" (10.00mm) lead spacing for consistent PCB footprint
Compliance requirements: All parts are ROHS3 compliant and REACH unaffected
Inventory availability: Current stock levels are 1017 pcs (Nichicon LLS1K392MELZ), 670 pcs (CDE 380LX392M080J452), and 2209 pcs (CDE SLPX392M080E5P3)
Manufacturer preference: Nichicon and Cornell Dubilier Electronics are both established manufacturers of aluminum electrolytic capacitors

Frequently Asked Questions (FAQ)

Q: Can the 380LX392M080J452 or SLPX392M080E5P3 be used as direct replacements for the LLS1K392MELZ?

A: Yes. Both parts share identical electrical specifications (3900 µF, 80 V, ±20% tolerance, 3000 Hrs @ 85°C) and mechanical compatibility (through-hole, snap-in package, 10.00mm lead spacing). Physical dimensions differ, so verify PCB clearance for the larger diameter and adjusted height of each alternative.

Q: What are the physical dimension differences between the three parts?

A: The LLS1K392MELZ has a 22.00mm diameter and 52.00mm height. The 380LX392M080J452 measures 25.00mm diameter and 47.00mm height. The SLPX392M080E5P3 measures 30.00mm diameter and 35.00mm height. All maintain the same 10.00mm lead spacing.

Q: Are there differences in ESR or ripple current ratings?

A: The LLS1K392MELZ does not specify ESR. The 380LX392M080J452 specifies 80 mOhm @ 120Hz, and the SLPX392M080E5P3 specifies 85 mOhm @ 120Hz. Ripple current ratings at 120 Hz are 3.62 A, 3.6 A, and 3.7 A respectively. These variations remain within acceptable ranges for general purpose applications.

Q: Do all three parts meet compliance requirements?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 and HTSUS 8532.22.0040.

Q: Which part should be selected for space-constrained applications?

A: The SLPX392M080E5P3 offers the smallest footprint with 30.00mm diameter and 35.00mm height, making it suitable for compact PCB layouts while maintaining all electrical specifications.

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