UKL1E221KPD

The UKL1E221KPD is an aluminum electrolytic capacitor in a radial lead can designed for low leakage current applications. It provides 220 µF capacitance at a 25 V rating with a compact φ10 × 16 mm package and 5 mm lead spacing.

Targeted use includes audio applications and other designs requiring stable capacitance, controlled loss (tanδ), and measurable ripple-handling capability. The part is RoHS compliant and intended for scenarios where the specified electrical and environmental limits are required.

Key Features

• Capacitance & tolerance — 220 µF with ±10% tolerance at 120 Hz, 20°C, offering predictable bulk energy storage for smoothing and decoupling.
• Voltage rating — Rated for 25 V operation to match common low-voltage supply rails.
• Low leakage — Specified leakage current of 11 µA, supporting low-standby loss and minimizing DC bias-related drift.
• Loss tangent — tanδ = 0.12 measured at 20°C, 120 Hz, for controlled ESR-related dissipation in audio and power circuits.
• Ripple current capability — 400 mA at low frequency (120 Hz) and 600 mA at high frequency (10 kHz), enabling handling of both mains-derived and higher-frequency ripple components.
• Endurance & temperature range — Rated life of 2000 hours at 85°C and operating range from –40°C to 85°C for sustained performance under elevated temperature conditions.
• Package & mounting — Radial lead can (φ10 × 16 mm) with 5 mm lead spacing; available in bulk or bag packing (no terminal forming).
• Compliance — RoHS compliant.
• Status — End Of Life (products in this series are scheduled to be discontinued and are not recommended for new designs).

Typical Applications

• Audio — Bulk smoothing, power supply decoupling, and coupling in audio circuits where low leakage and controlled dissipation (tanδ) are important for signal integrity and low noise.

Unique Advantages

• Low standby loss: The 11 µA leakage current minimizes DC loss in circuits that require low quiescent current.
• Measured dissipation (tanδ): tanδ = 0.12 at 20°C/120 Hz provides predictable ESR-related behavior for audio and power applications.
• Frequency-aware ripple handling: Distinct ripple ratings of 400 mA (120 Hz) and 600 mA (10 kHz) cover both low- and high-frequency ripple environments.
• Durability at elevated temperature: 2000 hours rated life at 85°C supports sustained use in warm operating environments within the specified range.
• Compact radial form factor: φ10 × 16 mm can with 5 mm lead spacing offers a small footprint for through-hole assemblies and straightforward radial lead mounting.

Why Choose UKL1E221KPD?

UKL1E221KPD delivers a balanced combination of capacitance (220 µF), low leakage (11 µA), defined dissipation (tanδ 0.12), and specified ripple handling across low and high frequencies. These measurable specifications make it suitable for designers and maintenance engineers who need clearly defined electrical performance in a compact radial can.

Note that this product is End Of Life and the UKL series is scheduled for discontinuation; it is not recommended for new designs. Use this part where its exact specifications are required for existing designs, repairs, or BOM continuity, and evaluate current availability and lifecycle implications accordingly.

For pricing, availability, or to request a quote for UKL1E221KPD, please contact sales to discuss current stock and lead-time options.