UCY2H180MHD3

CAP ALUM 18UF ±20% 500V RADIAL
Part Description

18 µF 500 V ±20% Aluminum Electrolytic Capacitor, Radial Lead

Quantity 1,833 Available (as of November 3, 2026)
Product CategoryAluminum Electrolytic Capacitors
Part SeriesUCY
ManufacturerNichicon
Manufacturing StatusMass Production
Manufacturer Standard Lead TimeContact Us
Datasheet

Specifications & Environmental

ApplicationsAutomotiveCapacitance18 µFECCNEAR99
ESRN/AHeight Seated (Max)2.15 cmHTS Code8532.22.0020
ImpedanceN/ALead Spacing7.5 mmLifetime @ Temp10000 h @ 105°C
Moisture Sensitivity LevelN/AMounting MethodRadial LeadOperating Temperature-40°C - 105°C
Package / CaseRadial, CanPolarizationPolarRatingsAEC-Q200
REACH ComplianceREACH AffectedRipple Current High Frequency480 mA @ 100 kHzRipple Current Low Frequency240 mA @ 120 Hz
RoHS ComplianceCompliantSize / Dimension20 x 16 mmSurface Mount Land SizeN/A
Tolerance-20%~20%Voltage500 V

Overview of UCY2H180MHD3 – Aluminum Electrolytic Capacitor, 500 V, 18 µF, Radial Lead

The UCY2H180MHD3 is a miniature, high-reliability aluminum electrolytic capacitor in a radial‑lead can designed for high-voltage applications. It delivers 18 µF capacitance at a 500 V rated voltage with robust endurance for continuous operation in demanding environments.

Targeted use cases include power-supply filtering, ballast and high-voltage systems in industrial and automotive contexts where long life, high ripple handling and compact form factor are required.

Key Features

  • Capacitance and Tolerance — 18 µF nominal with ±20% capacitance tolerance (measured at 120 Hz, 20°C), providing predictable energy storage for DC filtering and decoupling.
  • High Voltage Rating — 500 V rated voltage suitable for high-voltage DC applications and power‑supply stages requiring elevated working voltage.
  • High Ripple Current Capability — Rated low-frequency ripple current 240 mA at 120 Hz and high-frequency ripple current 480 mA at 100 kHz, enabling effective smoothing under AC and switching loads.
  • Long Life and Endurance — Designed for 10,000 hours of operation at 105°C, supporting long-term reliability in thermally stressed systems.
  • Temperature Range — Operates from −40°C to +105°C to cover a wide range of environmental conditions.
  • Electrical Loss and Leakage — Dissipation factor tanδ of 0.24 (20°C, 120 Hz) and leakage current specified at 460 µA, delivering controlled loss and leakage characteristics for predictable performance.
  • Package and Form Factor — Radial lead can, size φ16 × 20L with 7.5 mm lead spacing (±0.5 mm), available in bulk (no terminal forming) or bag packing for ease of through‑hole assembly.
  • Standards and Compliance — AEC‑Q200 rated and RoHS compliant, aligning with reliability and environmental requirements for regulated applications.

Typical Applications

  • Power Supplies — DC filtering and energy storage in high-voltage switching supplies and upstream rectifier stages.
  • Ballasts and Lighting — Smoothing and ripple suppression in ballast circuits as indicated in the UCY series datasheet.
  • Automotive Power Systems — High-voltage filtering and decoupling in automotive electrical systems where AEC‑Q200 qualification and wide temperature range are required.
  • High-Voltage DC Filtering — Bulk and bypass capacitance for high-voltage lines leveraging the 500 V rating and long endurance.

Unique Advantages

  • High‑voltage capability: 500 V rating enables use in applications that require elevated DC working voltages without upsizing the capacitor.
  • Designed for ripple-heavy environments: Combined low- and high-frequency ripple ratings (240 mA at 120 Hz, 480 mA at 100 kHz) support both mains-frequency and switching noise suppression.
  • Long operational life: 10,000 hours at 105°C provides predictable longevity for designs intended for continuous or high-temperature service.
  • Compact radial package: φ16 × 20L can with 7.5 mm lead spacing saves PCB area while retaining through-hole robustness.
  • Automotive-grade reliability: AEC‑Q200 qualification supports deployment in automotive and other high-reliability systems.
  • Regulatory compliance: RoHS compliance addresses environmental and material restrictions in modern product designs.

Why Choose UCY2H180MHD3?

The UCY2H180MHD3 is positioned for engineers who need a compact, high-voltage electrolytic capacitor that combines long life, strong ripple-handling capability and automotive‑grade reliability. Its 500 V rating, 18 µF capacitance and 10,000‑hour endurance at 105°C make it suitable for sustained service in power supplies, ballasts and automotive power electronics.

Choosing this part supports designs that require predictable electrical performance, wide operating temperature range and established compliance, helping reduce risk in both prototyping and production builds.

Request a quote or submit a pricing and availability inquiry to discuss lead times and volume options for UCY2H180MHD3.

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