LGU2F121MELY Equivalent & Substitute Parts

Part Overview

The LGU2F121MELY is a 120 µF, 315 V aluminum electrolytic capacitor manufactured by Nichicon in the LGU series. This radial, can-style snap-in capacitor is designed for general-purpose applications requiring stable capacitance performance across extended operating temperatures from -25°C to 105°C, with a rated lifetime of 3000 hours at 105°C. The part is currently active in production and ROHS3 compliant.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement in circuit applications without performance degradation.

Substiute Parts

LGU2F121MELY

NichiconIn Stock: 885LGU2F121MELY Datasheet

Current PartRFQ

LGU2F121MELZ

NichiconIn Stock: 1055LGU2F121MELZ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LGU2F121MELY is determined by strict equivalence across the following critical parameters:

• Capacitance value: 120 µF (exact match required)
• Voltage rating: 315 V (exact match required)
• Tolerance: ±20% (exact match required)
• Lifetime specification: 3000 Hrs @ 105°C (exact match required)
• Operating temperature range: -25°C ~ 105°C (exact match required)
• Ripple current ratings: 750 mA @ 120 Hz and 1.0725 A @ 50 kHz (exact match required)
• Mounting type: Through Hole (exact match required)
• Package type: Radial, Can - Snap-In (exact match required)
• Lead spacing: 0.394" (10.00 mm) (exact match required)
• Compliance: ROHS3 Compliant (exact match required)

The LGU2F121MELZ meets all substitution criteria and is classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both LGU2F121MELY and LGU2F121MELZ are active production parts from Nichicon with identical electrical specifications and ROHS3 compliance. Selection between these parts is determined by physical space constraints within the application.

The LGU2F121MELY features a 20.00 mm diameter can with a maximum seated height of 32.00 mm. The LGU2F121MELZ features a 22.00 mm diameter can with a maximum seated height of 27.00 mm. Both maintain the same 10.00 mm lead spacing for PCB mounting compatibility.

Choose LGU2F121MELY when the application requires a narrower profile with greater height tolerance. Choose LGU2F121MELZ when the application requires a more compact vertical footprint with slightly increased radial dimensions.

Frequently Asked Questions (FAQ)

Q: Can LGU2F121MELZ replace LGU2F121MELY in all applications?

A: Electrical substitution is valid. Physical fit must be verified against PCB layout constraints. The LGU2F121MELZ has different can diameter (22.00 mm vs. 20.00 mm) and height (27.00 mm vs. 32.00 mm) dimensions. Confirm available board space before substitution.

Q: Are the electrical performance characteristics identical?

A: Yes. Both parts share identical capacitance (120 µF), voltage rating (315 V), tolerance (±20%), lifetime (3000 Hrs @ 105°C), operating temperature range (-25°C ~ 105°C), and ripple current ratings (750 mA @ 120 Hz, 1.0725 A @ 50 kHz).

Q: What is the significance of the lead spacing specification?

A: Both parts maintain 0.394" (10.00 mm) lead spacing, ensuring compatibility with standard PCB hole patterns designed for radial through-hole capacitors in this class.

Q: Are both parts RoHS compliant?

A: Yes. Both LGU2F121MELY and LGU2F121MELZ are ROHS3 compliant and REACH unaffected.

Q: Which part should be selected for new designs?

A: Both parts are active in production. Selection depends on available PCB space. For designs with height constraints, LGU2F121MELZ is preferred. For designs with radial space constraints, LGU2F121MELY is preferred.