UCYW66R8MPD

The UCYW66R8MPD is a Nichicon UCY-series radial lead aluminum electrolytic capacitor designed for high-voltage power applications. It combines a compact, miniature can (φ10 × 16 mm) with high ripple-current capability and long endurance for demanding operating conditions.

Targeted for power supply and ballast applications and qualified to AEC-Q200, this RoHS-compliant polarized capacitor delivers reliable performance across a wide temperature range from −40°C to 105°C with a rated life of 10,000 hours at 105°C.

Key Features

• Capacitance & Rated Voltage — 6.8 µF nominal capacitance rated at 420 V DC with ±20% tolerance (−20% to +20%).
• High Ripple Capability — Specified ripple currents of 105 mA at 120 Hz (low frequency) and 210 mA at 100 kHz (high frequency) for improved filtering in power circuits.
• Long Endurance — Rated for 10,000 hours of life at 105°C under DC bias plus rated ripple current, supporting extended field service life.
• Low Loss Characteristics — Tangent of loss angle (tanδ) up to 0.24 measured at 20°C, 120 Hz, for predictable dissipation behavior.
• Compact Radial-Lead Package — φ10 × 16 mm can with 5.0 mm lead spacing (±0.5 mm), available in bulk (no terminal forming) or bag packing for assembly flexibility.
• Leakage Current — Product-specific leakage current listed as 214.24 µA; datasheet leakage guideline: I ≤ 0.04CV + 100 µA after 1 minute at 20°C.
• Qualification & Compliance — AEC-Q200 qualified and RoHS compliant for use in applications requiring recognized reliability standards.
• Wide Operating Temperature — Rated to operate from −40°C to +105°C to support elevated-temperature environments.
• Frequency Coefficients for Ripple Current — Frequency coefficients: 50 Hz = 0.80, 120 Hz = 1.00, 1 kHz = 1.60, 10 kHz = 1.80, 100 kHz or more = 2.00 (useful for scaling ripple ratings by operating frequency).

Typical Applications

• Power supply filtering — Bulk and high-voltage decoupling in power-supply and converter circuits where high ripple current and long life are required.
• Ballast and lighting circuits — Suited for ballast applications called out in the UCY series specifications.
• Automotive electronic modules — AEC-Q200 qualification and high-voltage rating make it suitable for automotive power electronics and control modules.

Unique Advantages

• High-voltage capability: 420 V rating enables use in elevated-voltage power stages and ballast circuits without series stacking.
• Designed for long service life: 10,000-hour endurance at 105°C supports sustained operation in high-temperature environments.
• Compact footprint: φ10 × 16 mm can delivers high-voltage performance in a small radial-lead package to save board space.
• Clear ripple specifications: Separate low- and high-frequency ripple current ratings (105 mA at 120 Hz, 210 mA at 100 kHz) provide predictable thermal and filtering behavior across frequencies.
• Industry qualification: AEC-Q200 qualification and RoHS compliance provide documented reliability and regulatory conformity for regulated markets.
• Production readiness: Mass-production status and standard bulk/bag packaging options simplify procurement and assembly planning.

Why Choose UCYW66R8MPD?

UCYW66R8MPD offers a balanced combination of high-voltage capability, compact radial-lead packaging, and long endurance, making it a practical choice for designers of power supplies, ballast circuits, and automotive electronic modules that require proven reliability. Its defined ripple-current ratings and loss characteristics enable predictable thermal and filtering performance across a range of operating frequencies.

With AEC-Q200 qualification, RoHS compliance, and mass-production availability, this Nichicon UCY-series capacitor provides a dependable component option for engineers seeking a rugged, high-voltage aluminum electrolytic with clear, verifiable specifications.

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