UCA2D221MHD

The UCA2D221MHD is a miniature, radial-lead aluminum electrolytic capacitor designed for high-voltage, high-ripple applications. It provides 220 µF capacitance at a 200 V rated voltage, with a polarized radial can package suited to through-hole mounting.

Engineered for power supply and ballast applications, the device offers high ripple-current capability, long operational life at elevated temperature, and RoHS compliance—targeting designs that require reliable high-voltage filtering and energy buffering in a compact footprint.

Key Features

• Electrical rating: 220 µF capacitance at a 200 V rated voltage with ±20% tolerance (measured at 120 Hz, 20°C).
• High ripple capability: Rated ripple current 1.7 A (1700 mA) at 105°C and 100 kHz; 850 mA at 120 Hz, enabling robust AC ripple handling in power circuits.
• Long operational life: Load-life endurance specified at 12,000 hours at 105°C (with specified endurance characteristics restored at 20°C after test).
• Low loss and leakage: Tangent of loss angle (tan δ) max. 0.15 at 120 Hz and 20°C; leakage current after 1 minute at 20°C not more than 0.04CV + 100 µA.
• Temperature stability: Category temperature range −25°C to +105°C with impedance stability specified (Z(−25°C)/Z(+20°C) ≤ 3 for the 200 V rating).
• Compact radial package: Radial lead, can-style package with 7.5 mm lead spacing and package dimensions L: 3.05 × D: 1.8 cm for space-efficient through-hole integration.
• Compliance: RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• Power supplies: Bulk filtering and ripple smoothing in high-voltage power-supply rails where 200 V ratings and high ripple capability are required.
• Ballasts: Energy buffering and AC ripple endurance for lighting ballast circuits specified by the product documentation.
• General-purpose high-voltage circuits: Through-hole designs requiring a compact, polarized electrolytic capacitor for high-voltage filtering and decoupling.

Unique Advantages

• High ripple tolerance: 1.7 A at 100 kHz (105°C) and 850 mA at 120 Hz gives designers predictable ripple-handling capability across common frequencies.
• Extended elevated-temperature life: 12,000-hour rated life at 105°C supports long-term operation in thermally demanding applications.
• Compact footprint for through-hole designs: Small radial can with 7.5 mm lead spacing and 3.05 × 1.8 cm package size helps conserve PCB area while retaining high-voltage capability.
• Stable, low-loss performance: tan δ ≤ 0.15 and defined impedance behavior across temperature provide consistent filtering performance.
• Measurable leakage specification: Leakage current limit defined by 0.04CV + 100 µA after 1 minute at 20°C, enabling predictable bias behavior in circuits.
• RoHS compliance: Meets RoHS directives (2011/65/EU, (EU)2015/863) for regulated substance requirements.

Why Choose UCA2D221MHD?

The UCA2D221MHD positions itself as a compact, high-voltage electrolytic solution for designers who need 200 V capability, robust ripple endurance, and long-term operation at elevated temperatures. Its radial-lead can package and clearly specified electrical characteristics make it straightforward to evaluate for power-supply, ballast, and other general-purpose high-voltage filtering tasks.

Please note: this product is scheduled to be discontinued and is not recommended for new designs. It remains a viable option for maintenance, repair, and legacy system support where the listed specifications match application requirements.

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