UKL1H221MHD

The UKL1H221MHD is a Nichicon UKL series aluminum electrolytic capacitor in a radial-lead can, offering 220 µF capacitance at a 50 V rating. It is designed for audio-focused circuits and other applications where low leakage, defined ripple handling, and compact radial packaging are required.

Key attributes include low leakage current, rated ripple current at both low and high frequencies, a wide operating temperature range of −40℃ to 85℃, and a lifecycle rating of 2000 hours at 85℃. Status: End Of Life.

Key Features

• Capacitance & Voltage — 220 µF capacitance with ±20% tolerance and a 50 V rated voltage, providing bulk energy storage for mid-voltage circuits.
• Low Leakage — Specified leakage current of 22 µA, supporting applications where minimized bleed current is important.
• Ripple Handling — Low-frequency ripple current of 490 mA (120 Hz) and high-frequency ripple current of 735 mA (10 kHz), enabling stable performance across common audio and power frequencies.
• Reliability & Life — Endurance rating of 2000 hours at 85℃, suitable for sustained operation within the specified temperature and rated voltage conditions.
• Temperature Range — Operating range from −40℃ to 85℃ to cover a broad set of ambient conditions.
• Package & Mounting — Radial lead, can-style package (φ12.5×20L) with 5 mm lead spacing (±0.5 mm) for through-hole PCB mounting.
• Polarized — Polar capacitor construction for correct polarity installation in DC circuits.
• Packaging Options — Available in bulk (no terminal forming) or bag packing to suit assembly and inventory preferences.
• RoHS Compliant — Manufactured to meet RoHS requirements.

Typical Applications

• Audio Power Supply Filtering — Use in audio device power rails where 220 µF at 50 V and specified ripple ratings help smooth supply variations.
• Audio Amplifier Decoupling — Provides bulk decoupling and energy reservoir for amplifier stages, benefiting from low leakage and defined ripple performance.
• Consumer Audio Modules — Suitable for module-level power conditioning in consumer audio equipment within the −40℃ to 85℃ operating range.

Unique Advantages

• Low leakage minimizes standby drain — 22 µA leakage current reduces unwanted current draw in idle or low-power states.
• Defined ripple capability across frequencies — Separate ripple ratings at 120 Hz and 10 kHz (490 mA and 735 mA) allow designers to account for both low- and high-frequency stress in audio and power circuits.
• Compact radial can for through-hole assemblies — φ12.5×20L package with 5 mm lead spacing simplifies placement and soldering on standard PCBs.
• Designed for continuous operation — 2000 hours at 85℃ endurance rating provides a measurable reliability baseline for thermal-stressed applications.
• RoHS compliance — Meets environmental directive requirements for restricted substances.
• Flexible supply packaging — Available in bulk or bag packing to support prototyping and production workflows.

Why Choose UKL1H221MHD?

The UKL1H221MHD delivers a balanced set of electrical and mechanical characteristics for audio-centric designs requiring 220 µF at 50 V, low leakage, and clear ripple specifications across low and high frequencies. Its radial-can form factor and 5 mm lead spacing make it straightforward to implement in through-hole assemblies, while the 2000-hour endurance rating at 85℃ gives designers quantifiable long-term performance expectations.

This part suits engineers and procurement teams specifying electrolytic bulk capacitance for audio power rails, amplifier decoupling, and related modules where low leakage and defined ripple handling matter. RoHS compliance and packaging choices further support integration into production and inventory planning.

Request a quote or contact sales to discuss availability, pricing, or to submit a procurement inquiry for UKL1H221MHD.