LAK2G151MELZ45

CAP ALUM 150UF ±20% 400V SNAP-IN
Part Description

150 µF 400 V ±20% Aluminum Electrolytic Capacitor, Snap-In

Quantity 1,774 Available (as of November 3, 2026)
Product CategoryAluminum Electrolytic Capacitors
Part SeriesLAK
ManufacturerNichicon
Manufacturing StatusMass Production
Manufacturer Standard Lead TimeContact Us
Datasheet

Specifications & Environmental

ApplicationsGeneral PurposeCapacitance150 µFECCNEAR99
ESRN/AHeight Seated (Max)4.7 cmHTS Code8532.22.0040
ImpedanceN/ALead SpacingN/ALifetime @ Temp2000 h @ 105°C
Moisture Sensitivity LevelN/AMounting MethodSnap InOperating Temperature-25°C - 105°C
Package / CaseRadial, Can - Snap-InPolarizationPolarRatingsN/A
REACH ComplianceREACH UnaffectedRipple Current High Frequency805 mA @ 100 kHzRipple Current Low Frequency700 mA @ 120 Hz
RoHS ComplianceCompliantSize / Dimension45 x 22 mmSurface Mount Land SizeN/A
Tolerance-20%~20%Voltage400 V

Overview of LAK2G151MELZ45 – 400V 150µF Snap‑in Aluminum Electrolytic Capacitor, 105°C

The LAK2G151MELZ45 is an aluminum electrolytic, snap‑in terminal capacitor designed for general‑purpose power applications. It delivers 150 µF at a nominal 400 V in a compact radial can (φ22 mm × 45 mm) optimized for equipment that experiences voltage fluctuations.

Built for elevated operating temperatures, this capacitor is rated to 105°C and provides a combination of high voltage capability, ripple handling and safety features suited to industrial and power‑electronics designs.

Key Features

  • Core Dielectric & Capacitance — 150 µF nominal capacitance with ±20% tolerance at 120 Hz, 20°C, providing predictable energy storage and decoupling.
  • High Voltage Range — Rated voltage 400 V with available rated voltage range of 200 V to 420 V to support higher DC bus and industrial power rails.
  • Temperature & Endurance — Operating temperature range −25°C to +105°C and endurance specified for 2000 hours at 105°C under D.C. bias plus rated ripple current.
  • Ripple Current Capability — Rated ripple current 700 mA at 120 Hz, 105°C and 805 mA at 100 kHz, enabling effective smoothing under continuous AC ripple conditions.
  • Loss & Leakage Characteristics — Tangent of loss angle (tan δ) ≤ 0.20 at 120 Hz, 20°C and measured leakage current of 0.73 mA, supporting stable performance in power circuits.
  • Package & Mounting — Snap‑in radial can package (φ22 mm × 45 mm) for secure PCB mounting and straightforward assembly in power modules and chassis.
  • Safety & Reliability — Designed with improved safety features for abnormally excessive voltage and an operating pressure relief vent per the LAK series specification.
  • Environmental Compliance — RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

  • Power supplies — Bulk smoothing and output filtering on high‑voltage DC rails where 400 V capacitance is required and sustained ripple current is present.
  • Industrial equipment — Energy storage and decoupling in equipment exposed to fluctuating voltages thanks to the LAK series’ enhanced abnormal‑voltage safety features.
  • Power conversion modules — DC link and ripple suppression in converters and inverters operating at elevated temperatures up to 105°C.

Unique Advantages

  • High‑voltage capability: 400 V nominal rating with 200–420 V range supports higher DC bus applications without compromising capacitance.
  • High‑temperature endurance: Rated for continuous operation at 105°C with a 2000‑hour endurance specification, offering predictable life in hot environments.
  • Robust ripple handling: 700 mA at 120 Hz and 805 mA at 100 kHz ripple current ratings enable reliable smoothing under real‑world AC ripple loads.
  • Compact snap‑in form factor: φ22 mm × 45 mm radial can with snap‑in terminals simplifies PCB retention and mechanical mounting in power assemblies.
  • Measured electrical stability: Low tan δ (≤0.20) and specified leakage current (0.73 mA) support consistent performance in filtering and energy storage roles.
  • Safety features: Pressure relief and improved abnormal‑voltage protections reduce risk during abnormal voltage events.

Why Choose LAK2G151MELZ45?

LAK2G151MELZ45 delivers a balanced combination of high voltage, thermal endurance and ripple tolerance in a compact snap‑in aluminum electrolytic package. Its 150 µF capacitance at 400 V, specified loss and leakage characteristics, and 2000‑hour endurance at 105°C make it a practical choice for designers of power supplies, converters and industrial equipment that require reliable DC smoothing under elevated temperature and fluctuating voltage conditions.

The RoHS‑compliant LAK series design includes safety features for abnormal voltage and a robust mechanical snap‑in mounting style, providing a dependable component option for procurement and engineering teams focused on long‑term reliability and straightforward assembly.

Please request a quote or contact sales to submit requirements and check pricing and availability for LAK2G151MELZ45.

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    Date Founded: 1950


    Headquarters: Nakagyo, Kyoto, Japan


    Employees: 5,000+


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