UKL1J221KHD

The UKL1J221KHD is an aluminum electrolytic capacitor from Nichicon’s UKL low-leakage series. It is a radial-lead, polarized capacitor specified at 220 µF with a rated voltage of 63 V, designed for applications that require low leakage and robust ripple-handling in a compact can package (φ12.5 × 20 mm).

With a rated temperature range of −40 °C to 85 °C and an endurance of 2000 hours at 85 °C, this part targets audio and related electronic designs that benefit from low standby leakage, measurable ripple current capability, and standard radial mounting.

Key Features

• Capacitance & Voltage — 220 µF nominal capacitance with ±10% tolerance at a rated voltage of 63 V, delivering stable bulk capacitance for power and signal circuits.
• Low Leakage Performance — Specified leakage current of 27.72 µA, supporting designs where minimized standby current and bias stability are required.
• Ripple Current Capability — Low-frequency ripple current of 550 mA (120 Hz) and high-frequency ripple current of 825 mA (10 kHz), enabling effective smoothing and decoupling across common audio and power-supply frequencies.
• Thermal & Endurance — Rated operating temperature −40 °C to 85 °C with 2000 hours endurance at 85 °C, suitable for sustained operation in temperature-controlled assemblies.
• Radial Lead Package — φ12.5 × 20 mm can with 5 mm lead spacing (±0.5 mm tolerance), radial lead mounting for through-hole assemblies and hand or wave-solder processes; available in bulk or bag packing.
• RoHS Compliant — Manufactured in compliance with RoHS requirements.

Typical Applications

• Audio Equipment — Use for power-supply smoothing and decoupling in audio amplifiers and preamplifiers where low leakage supports stable bias and low-noise operation.
• Power Supply Filtering — Bulk filtering and ripple suppression in DC power rails, leveraging the 220 µF capacitance and specified ripple current ratings.
• Analog Signal Circuits — Decoupling and charge storage in analog front-ends where low leakage current helps maintain signal integrity over time.

Unique Advantages

• Low Standby Current: The 27.72 µA leakage specification reduces bias drift and minimizes standby power consumption in sensitive circuits.
• Frequency-Spanning Ripple Handling: Separate ripple ratings at 120 Hz (550 mA) and 10 kHz (825 mA) provide clear guidance for both low- and high-frequency filtering requirements.
• Compact Through-Hole Format: φ12.5 × 20 mm radial can with 5 mm lead spacing fits space-constrained boards while retaining the robustness of a through-hole mount.
• Temperature-Endurance Balance: Rated for −40 °C to 85 °C with 2000 hours at 85 °C, offering a known lifecycle expectation for designs operating within that range.
• Regulatory Compliance: RoHS-compliant construction supports environmental requirements for commercial products.

Why Choose UKL1J221KHD?

UKL1J221KHD delivers a focused combination of low leakage, clearly specified ripple performance, and a compact radial-can footprint that fits many audio and power-filtering use cases. Its 220 µF / 63 V rating and defined endurance at 85 °C make it appropriate for designers who need predictable behavior and measurable specifications for system-level power and analog circuits.

This part is well suited to engineers and procurement teams specifying capacitors for audio electronics, power-supply smoothing, and analog circuitry where low leakage and known ripple capability matter. The RoHS compliance and standard radial packaging simplify integration into existing manufacturing and regulatory workflows.

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