UCY2C391MHD6

The UCY2C391MHD6 is a radial‑lead, miniature aluminum electrolytic capacitor from Nichicon’s UCY series, optimized for high ripple current and extended life in demanding power electronics. It delivers 390 µF at 160 V with a compact φ18 × 30.5 mm can and is designed for power supply and ballast applications, including automotive electronic systems where AEC‑Q200 qualification is required.

Key value propositions include high ripple current capability across frequency, long endurance at elevated temperature (12 000 hours at 105 °C), and RoHS compliance for regulated designs.

Key Features

• Capacitance & Voltage — 390 µF nominal capacitance with a 160 V rated voltage and ±20% tolerance for bulk energy storage and smoothing.
• High Ripple Current — Low‑frequency ripple current 1.695 A (120 Hz) and high‑frequency ripple current 3.39 A (100 kHz), supporting demanding switching and high‑frequency applications.
• Long Life / High Temperature Endurance — Rated for 12 000 hours at 105 °C under D.C. bias plus rated ripple current, providing predictable degradation characteristics for long service life.
• Loss Tangent (tan δ) — tan δ = 0.20 measured at 20 °C, 120 Hz, supporting predictable dissipation characteristics in AC‑biased circuits.
• Compact Radial Can Package — Radial lead configuration with lead spacing 7.5 mm (±0.5 mm) in a φ18 × 30.5 mm can (3.05 × 1.8 cm), for through‑hole PCB mounting and mechanical robustness.
• Environmental & Qualification — RoHS compliant and AEC‑Q200 qualified; supplied in bulk (no terminal forming) or bag packing and available in mass production quantities.

Typical Applications

• Power Supplies — Bulk smoothing and energy storage in DC power supplies where high ripple current and long life are required.
• Ballast and Lighting Drivers — Filtering and ripple handling in ballast circuits and driver electronics that operate at elevated temperatures.
• Automotive Electronic Systems — Use in automotive power electronics and ancillary systems where AEC‑Q200 qualification and extended endurance at 105 °C are required.

Unique Advantages

• High ripple handling across frequency: Specified ripple current of 1.695 A at 120 Hz and 3.39 A at 100 kHz enables reliable operation in both low‑ and high‑frequency power stages.
• Long‑term thermal reliability: Endurance rated to 12 000 hours at 105 °C provides predictable life for designs exposed to sustained high temperatures.
• AEC‑Q200 qualification: Meets industry qualification for automotive electronics, supporting designs that require automotive‑grade componentry.
• Compact, serviceable form factor: φ18 × 30.5 mm radial can with 7.5 mm lead spacing fits through‑hole layouts while retaining substantial capacitance and ripple capability.
• Controlled dissipation: tan δ of 0.20 (20 °C, 120 Hz) offers predictable dielectric loss characteristics for thermal and efficiency planning.
• Regulatory compliance and production readiness: RoHS compliant and listed as mass production, simplifying procurement and compliance workflows.

Why Choose UCY2C391MHD6?

UCY2C391MHD6 combines high capacitance and high ripple current capability in a compact radial can, making it suitable for designers who need durable bulk energy storage with predictable long‑term behavior at elevated temperature. Its 12 000‑hour endurance at 105 °C, AEC‑Q200 qualification, and RoHS compliance position this part for demanding power supply, ballast, and automotive electronics applications.

Choose UCY2C391MHD6 when you require a polarized aluminum electrolytic with clear specifications for ripple current, leakage, and loss tangent, along with production availability and packaging options for board assembly.

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