UCYW6330MHD

The UCYW6330MHD is a miniature, radial‑lead aluminum electrolytic capacitor in Nichicon’s UCY series designed for high ripple current and long operational life. As a polarized, through‑hole can type, it is intended for power supply filtering and ballast circuits where high ripple handling and durability at elevated temperatures are required.

Key propositions include a 33 µF capacitance at a 420 V rating, long endurance up to 12000 hours at +105°C, and industry reliability through AEC‑Q200 qualification and RoHS compliance.

Key Features

• Capacitance and Voltage: 33 µF capacitance with a 420 V rated voltage, suitable for high‑voltage filtering and energy buffering in power circuits.
• High ripple current capability: Rated ripple current of 400 mA at 120 Hz and 800 mA at 100 kHz, with frequency coefficients defined in the datasheet for ripple scaling.
• Long life at elevated temperature: Endurance specified for 12000 hours at +105°C (10000 hours for certain sizes), with defined limits for capacitance change, tan δ and leakage after the endurance test.
• Wide operating temperature range: Specified operating range from −40°C to +105°C for stable performance across typical industrial and automotive temperature extremes.
• Radial lead, polarized can package: Through‑hole radial lead package (lead spacing 5 mm) for conventional PCB mounting and robust mechanical retention.
• Reliability and compliance: AEC‑Q200 qualified and RoHS‑compliant to the 2011/65/EU and (EU) 2015/863 directives.
• Leakage and loss characteristics: Leakage current specification after 1 minute is ≤ 0.04CV + 100 µA; tan δ limits are defined by rated voltage in the series datasheet.
• Compact footprint: Physical dimensions L: 3.05 × D: 1.25 cm with a seated height up to 1.201 inch provide a small form factor for high‑voltage applications.

Typical Applications

• Power supplies: Bulk filtering and ripple smoothing in high‑voltage power supply rails where high ripple current and long life are required.
• Ballasts: AC/DC ballast and lamp drive circuits that demand stable capacitance and ripple endurance at elevated temperatures.
• Automotive electronics: Control modules and power systems that benefit from AEC‑Q200 qualification and extended temperature operation.

Unique Advantages

• Extended high‑temperature endurance: Specified 12000 hours at +105°C gives designers a quantified lifecycle metric for hot‑environment applications.
• High ripple handling across frequencies: Explicit ripple current ratings at both low and high frequencies (400 mA at 120 Hz, 800 mA at 100 kHz) help optimize filter and decoupling designs.
• Automotive‑grade qualification: AEC‑Q200 qualification supports use in designs targeting automotive reliability requirements.
• Measured leakage and loss limits: Defined leakage current formula and tan δ limits provide predictable behavior for system power budgets and thermal planning.
• RoHS compliance: Conforms to RoHS directives (2011/65/EU, (EU) 2015/863) for regulatory alignment in global products.
• Through‑hole can package: Radial lead can with 5 mm lead spacing enables straightforward PCB mounting and mechanical robustness for vibration‑sensitive applications.

Why Choose UCYW6330MHD?

The UCYW6330MHD combines a high 420 V rating with 33 µF capacitance in a compact radial can, delivering quantified ripple current performance and long‑life endurance at +105°C. Its AEC‑Q200 qualification and RoHS compliance make it suitable for applications that require both reliability and regulatory conformance.

This part is well suited to engineers designing power supplies, ballast circuits, and automotive power electronics who need predictable ripple handling, long operational life, and a through‑hole form factor for robust mounting and serviceability.

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