UKW1E223MRD

The UKW1E223MRD is a radial-lead aluminum electrolytic capacitor from Nichicon's UKW series, engineered for audio and AV equipment applications. It provides large bulk capacitance in a compact 25 mm × 50 mm can for power‑supply smoothing and decoupling functions where high capacitance and defined ripple performance are required.

Designed for through‑hole mounting, this polarized capacitor offers a 25 V rating, wide operating temperature range of −40°C to +85°C, and endurance specified at 2000 hours at 85°C, making it suitable for demanding audio power stages and AV electronics.

Key Features

• High Capacitance — 22,000 µF (22 mF) bulk capacitance for energy storage and smoothing in power rails.
• Rated Voltage — 25 V nominal working voltage for common audio and AV power rails.
• Ripple Current Performance — Low‑frequency ripple current 4.5 A (120 Hz) and high‑frequency ripple current 5.175 A (10 kHz), supporting both mains‑related and higher‑frequency ripple conditions.
• Loss Tangent (tan δ) — Specified tan δ of 0.58 at 20°C, 120 Hz, 25 V, enabling predictable dissipation characteristics for thermal and stability calculations.
• Endurance — Rated life 2000 hours at 85°C with specified limits for capacitance change, dissipation factor and leakage current after endurance test.
• Physical & Mounting — Radial lead can (φ25 × 50 mm), lead spacing 12.5 mm with ±0.5 mm tolerance, suitable for through‑hole boards and hand or wave assembly.
• Electrical Characteristics — Polarized device with capacitance tolerance ±20% and specified leakage current (16,500 µA as provided in part data).
• Compliance — RoHS compliant.
• Lifecycle Status — Product status: End Of Life. Packaging options recorded as Bulk (No Terminal Forming) / Bag Packing.

Typical Applications

• Audio Equipment — Bulk energy storage and smoothing in amplifiers and power supplies for AV and consumer audio systems where large capacitance is required.
• AV Electronics — Power rail decoupling and ripple suppression in AV devices, leveraging the capacitor’s specified ripple current at both low and high frequencies.
• Power Supply Filtering — Main filtering and reservoir capacitor for through‑hole power supplies supporting audio/AV circuitry.

Unique Advantages

• Substantial Bulk Energy Storage: 22,000 µF capacitance provides significant charge reserve for smoothing and transient support in audio power stages.
• Dual‑Frequency Ripple Capability: Specified ripple current at 120 Hz and 10 kHz (4.5 A and 5.175 A) helps designers size capacitors for both low‑frequency rectified ripple and higher‑frequency switching or EMI components.
• Defined Dissipation Behavior: Measured tan δ (0.58 at 20°C, 120 Hz, 25 V) allows predictable thermal and loss budgeting in enclosure and thermal designs.
• Through‑Hole Simplicity: Radial lead, 25 mm can with 12.5 mm lead spacing eases prototyping, hand soldering and retrofit into existing PCB footprints.
• Endurance Specified: 2000 h at 85°C life rating provides a measurable reliability baseline for long‑term audio and AV deployments.
• Regulatory Compliance: RoHS compliance supports designs targeting regulated markets.

Why Choose UKW1E223MRD?

The UKW1E223MRD positions itself as a high‑capacitance, through‑hole solution tailored for audio and AV power applications that need substantial energy storage and documented ripple performance. Its combination of 22,000 µF capacitance, 25 V rating, and ripple current specifications at both 120 Hz and 10 kHz make it straightforward to evaluate for smoothing and decoupling tasks where thermal and loss behavior must be accounted for.

This part suits engineers and procurement teams designing or servicing audio amplifiers, AV power supplies, and related electronics who require clear endurance and electrical parameters. Note that the part is listed as End Of Life, so availability and packing options (Bulk / Bag) should be confirmed when planning replacement or legacy builds.

If you would like pricing, availability, or a quotation for UKW1E223MRD, please request a quote or contact the sales team to discuss lead times and ordering details.