Equivalent & Substitute Parts for LLS1C183MELB

Part Overview

The LLS1C183MELB is an 18000 µF, 16 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 high capacitance values in compact form factors. Substitute parts are identified when equivalent electrical characteristics and mechanical compatibility are maintained across the allowed parameter range for this capacitor category.

Substiute Parts

LLS1C183MELB

NichiconIn Stock: 1082LLS1C183MELB Datasheet

Current PartRFQ

LGU1C183MELB

NichiconIn Stock: 1073LGU1C183MELB Datasheet

DirectRFQ

LGY1C183MELB30

NichiconIn Stock: 1120LGY1C183MELB30 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LLS1C183MELB is determined by strict equivalence in the following parameters:

• Capacitance: 18000 µF (exact match required)
• Voltage Rating: 16 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package Type: Radial, Can - Snap-In (exact match required)
• Mounting Type: Through Hole (exact match required)
• Lead Spacing: 0.394" (10.00mm) (exact match required)
• Physical Dimensions: 1.181" Dia × 1.260" Height (exact match required)
• Polarization: Polar (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)

Variations in operating temperature range, lifetime rating at temperature, and ripple current specifications do not disqualify a part as a substitute, provided all electrical and mechanical parameters listed above remain identical. All substitute parts identified are manufactured by Nichicon and maintain full compatibility with applications designed for the LLS1C183MELB.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain Active product status and ROHS3 compliance, ensuring continued availability and regulatory conformance. The LGU1C183MELB and LGY1C183MELB30 are direct electrical and mechanical equivalents to the LLS1C183MELB, with identical capacitance, voltage rating, tolerance, and physical dimensions.

Selection between the main part and substitutes should be based on application requirements for operating temperature range and lifetime rating. The LLS1C183MELB operates to 85°C with 3000 hour lifetime at that temperature. The LGU1C183MELB extends the operating range to 105°C while maintaining 3000 hour lifetime at 105°C. The LGY1C183MELB30 provides the highest thermal performance with 5000 hour lifetime at 105°C and identical 105°C operating range.

All parts are suitable for direct substitution in through-hole PCB applications where the snap-in mounting interface and 10mm lead spacing are specified. No design modifications are required for mechanical or electrical integration.

Frequently Asked Questions (FAQ)

Q: Can LGU1C183MELB be used as a direct replacement for LLS1C183MELB?

A: Yes. Both parts share identical capacitance (18000 µF), voltage rating (16 V), tolerance (±20%), package type (Radial, Can - Snap-In), lead spacing (10mm), and physical dimensions (1.181" Dia × 1.260" Height). The LGU1C183MELB extends the maximum operating temperature to 105°C compared to 85°C for the LLS1C183MELB.

Q: What is the difference between LGU1C183MELB and LGY1C183MELB30?

A: Both parts are electrically and mechanically identical. The primary difference is lifetime rating: LGU1C183MELB is rated for 3000 hours at 105°C, while LGY1C183MELB30 is rated for 5000 hours at 105°C. Both operate across the -40°C to 105°C temperature range.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The LLS1C183MELB, LGU1C183MELB, and LGY1C183MELB30 are all ROHS3 compliant and suitable for applications requiring regulatory compliance.

Q: Will substituting these parts require PCB layout changes?

A: No. All substitute parts maintain identical lead spacing (10mm) and physical dimensions (1.181" Dia × 1.260" Height), ensuring compatibility with existing PCB designs and snap-in mounting interfaces.

Q: Which substitute part should be selected for high-temperature applications?

A: Both LGU1C183MELB and LGY1C183MELB30 support operation to 105°C. For applications requiring extended service life at elevated temperatures, LGY1C183MELB30 is specified with 5000 hour lifetime at 105°C versus 3000 hours for LGU1C183MELB.