ULD1C221MPD

The ULD1C221MPD is a miniature, high-reliability aluminum electrolytic capacitor from Nichicon's ULD series. It is a radial-lead, polarized capacitor with 220 µF capacitance rated for 16 V and a capacitance tolerance of -20% to +20%.

Designed for general-purpose power applications, the part delivers long-life endurance (10000 hours at 105°C), low leakage, and measurable ripple-current capability across low and high frequencies, making it suitable for compact power-supply and smoothing applications where space and reliability matter.

Key Features

• Capacitance & Voltage — 220 µF capacitance rated at 16 V with ±20% tolerance for bulk decoupling and smoothing in low-voltage DC circuits.
• Long-life Endurance — Specified life of 10000 hours at 105°C under rated conditions to support sustained operation in elevated-temperature environments.
• Ripple Current Handling — Low-frequency ripple current of 231 mA (120 Hz) and high-frequency ripple current of 330 mA (100 kHz), enabling effective ripple management across a range of switching and linear power supplies.
• Low Leakage and Loss — Leakage current specified at 35.2 µA and tangent of loss angle (tanδ) of 0.35 (measured at 20°C, 120 Hz), providing predictable leakage and dissipation characteristics.
• Compact Radial Package — φ8 × 11.5 mm can with radial leads, 3.5 mm lead spacing (±0.5 mm), and bulk/bag packing options for straightforward through-hole PCB assembly and stocking.
• Wide Operating Temperature — Rated for -40°C to +105°C to cover typical industrial and consumer ambient ranges.
• RoHS Compliant — Meets RoHS requirements for restricted substances.

Typical Applications

• LED Power Supplies — Suited for smoothing and energy storage in LED driver power stages where long life at elevated temperatures is required.
• PCB Power Rail Decoupling — Compact radial form factor for bulk decoupling on low-voltage DC power rails in embedded systems and general-purpose electronics.
• Switching Power Supplies — Handles both low- and high-frequency ripple currents for filtering and output-stage stabilization in compact converters.
• General-Purpose Power Filtering — Useful for point-of-load smoothing, transient buffering, and other general power-management roles in industrial and consumer equipment.

Unique Advantages

• Proven long-life performance: 10000-hour endurance at 105°C provides design confidence for sustained operation in heated enclosures.
• Measured ripple capability: Defined low- and high-frequency ripple current ratings (231 mA @120 Hz, 330 mA @100 kHz) let engineers size capacitors for both line-frequency and switching environments.
• Predictable leakage and dissipation: Low leakage current (35.2 µA) and specified tanδ (0.35) deliver stable behavior over typical operating conditions.
• Space-efficient radial package: φ8×11.5 mm can and 3.5 mm lead spacing provide a compact through-hole solution for boards with limited area.
• RoHS conformity: Meets environmental compliance requirements for modern electronic designs.
• Simple inventory and assembly: Available in bulk (no terminal forming) or bag packing to support common procurement and manufacturing workflows.

Why Choose ULD1C221MPD?

ULD1C221MPD combines a compact footprint with long-life endurance and clearly specified electrical characteristics, making it an effective choice where reliable low-voltage energy storage and ripple suppression are required. Its radial-lead can package and defined lead spacing simplify through-hole placement and assembly in compact power designs.

This capacitor is well suited to engineers and procurement teams specifying components for general-purpose power supplies, LED drivers, and other low-voltage smoothing applications that require documented ripple capability, low leakage, and operation across -40°C to +105°C.

If you need pricing, availability, or additional technical details for ULD1C221MPD, request a quote or submit an inquiry and our team will provide prompt assistance and support for your design and procurement requirements.