LLS1J392MELZ Equivalent & Substitute Parts

Part Overview

The LLS1J392MELZ is a 3900 µF, 63 V aluminum electrolytic capacitor manufactured by Nichicon in a radial, can snap-in package. This component is designed for general-purpose applications requiring high capacitance values with a rated lifetime of 3000 hours at 85°C. The part is currently active in production and ROHS3 compliant. Equivalent and substitute parts may be required due to inventory availability, lead time constraints, or specific application requirements that permit operation at alternative voltage ratings or capacitance values within acceptable tolerance ranges.

Substiute Parts

LLS1J392MELZ

NichiconIn Stock: 1292LLS1J392MELZ Datasheet

Current PartRFQ

SLPX332M080A9P3

Cornell Dubilier Electronics (CDE)In Stock: 41941SLPX332M080A9P3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LLS1J392MELZ is determined by the following critical parameters:

Mechanical Compatibility:

• Lead spacing: 0.394" (10.00mm)
• Package type: Radial, Can - Snap-In
• Mounting type: Through Hole
• Can diameter: 0.866" (22.00mm)

Electrical Compatibility:

• Capacitance tolerance: ±20% allows for capacitance values between 3120 µF and 4680 µF
• Voltage rating: Must be equal to or greater than 63 V
• Polarization: Polar (required)
• Operating temperature range: -40°C ~ 85°C minimum
• Lifetime: 3000 Hrs @ 85°C minimum

Regulatory Compliance:

• RoHS3 compliance required
• Product status: Active

The substitute part SLPX332M080A9P3 meets all mechanical compatibility requirements and operates within the allowed electrical parameter ranges for this application category.

Parameter Comparison

Engineering Selection Recommendations

Both the LLS1J392MELZ and SLPX332M080A9P3 are active products with ROHS3 compliance and identical operating temperature ranges. The substitute part SLPX332M080A9P3 provides a higher voltage rating (80 V versus 63 V), which offers additional design margin in applications where the circuit voltage does not exceed 63 V. The capacitance difference of 600 µF (3900 µF versus 3300 µF) falls within the ±20% tolerance specification and is acceptable for general-purpose applications where exact capacitance matching is not critical. The increased height of the substitute part (1.969" versus 1.654") must be verified against available board space and enclosure clearance before selection.

Frequently Asked Questions (FAQ)

Q: Can SLPX332M080A9P3 be used as a direct replacement for LLS1J392MELZ?

A: Yes, provided that the increased height of 1.969" (50.00mm) does not conflict with available board space. The capacitance difference of 600 µF is within the ±20% tolerance range and acceptable for general-purpose applications.

Q: What is the significance of the voltage rating difference?

A: The substitute part operates at 80 V rated voltage compared to 63 V for the main part. This higher rating provides additional safety margin and does not affect compatibility in circuits designed for 63 V operation.

Q: Are the mechanical dimensions compatible?

A: Lead spacing (10.00mm) and can diameter (22.00mm) are identical, ensuring PCB footprint compatibility. The height difference must be evaluated for clearance in the specific application.

Q: Do both parts meet the same compliance standards?

A: Yes. Both LLS1J392MELZ and SLPX332M080A9P3 are ROHS3 compliant and rated for -40°C to 85°C operation with 3000-hour lifetime at 85°C.

Q: What is the capacitance tolerance range for these parts?

A: With ±20% tolerance, the LLS1J392MELZ operates between 3120 µF and 4680 µF, while the SLPX332M080A9P3 operates between 2640 µF and 3960 µF. Both ranges are suitable for general-purpose filtering and energy storage applications.