UHW1H561MHD

The UHW1H561MHD is a radial-lead aluminum electrolytic capacitor in Nichicon’s UHW series, optimized for compact, high-ripple current applications. It delivers 560 µF at a 50 V rating with a miniature φ12.5 × 20 mm can and radial lead mounting for through-hole designs.

Designed for general-purpose power applications, this capacitor combines low impedance at high frequency, substantial ripple handling, and long endurance up to 10 000 hours at 105 °C to support stable power filtering and decoupling on 50 V rails.

Key Features

• Electrical characteristics — 560 µF nominal capacitance at 50 V with tolerance of -20% to +20% and an impedance of 81 mΩ for low-loss bulk energy storage and smoothing.
• Low loss (tan δ) — Tan δ specified at 0.10 (measured at 20 °C, 120 Hz for 50 V), contributing to efficient performance in AC ripple environments.
• High ripple current capability — Rated low-frequency ripple current of 1.15 A at 120 Hz and high-frequency ripple current of 2.3 A at 10 kHz, with frequency coefficients applicable for 220–560 µF showing improved capability at higher frequencies.
• Miniature radial package — Compact φ12.5 × 20 mm can with 5 mm lead spacing (±0.5 mm) and radial-lead mounting for easy through-hole placement and reliable mechanical anchoring.
• Wide operating temperature and long life — Specified operation from -40 °C to 105 °C and endurance of 10 000 hours at 105 °C under rated conditions for extended field life.
• Leakage and quality control — Specified leakage current of 280 µA and manufacturing in a RoHS-compliant process.

Typical Applications

• Power supply filtering and smoothing — Bulk decoupling on 50 V rails where large capacitance and low impedance reduce voltage ripple and improve regulator stability.
• DC/DC converters — Input/output filtering for medium-power converters that require high ripple current handling and compact through-hole components.
• Industrial and control electronics — Energy storage and transient suppression in industrial control modules operating across a -40 °C to 105 °C range.
• Consumer and professional equipment — General-purpose power filtering in instruments and appliances where durable, high-ripple capacitors are needed in a small footprint.

Unique Advantages

• Compact high-capacitance solution: 560 µF in a φ12.5 × 20 mm can saves PCB space while providing substantial bulk capacitance for power rails.
• High ripple tolerance: Rated ripple currents of 1.15 A (120 Hz) and 2.3 A (10 kHz) reduce thermal stress and support higher-frequency converter topologies.
• Low high-frequency impedance: Series design and an 81 mΩ impedance help maintain low AC losses and better transient response at operating frequencies.
• Long endurance at elevated temperature: 10 000 hours at 105 °C provides predictable lifetime performance for designs requiring extended operational reliability.
• Through-hole robustness: Radial lead form factor and defined lead spacing simplify assembly and provide strong mechanical connection for rugged applications.
• Regulatory compliance: RoHS-compliant manufacturing simplifies environmental conformity for shipped products.

Why Choose UHW1H561MHD?

The UHW1H561MHD is positioned for engineers needing a compact, high-capacitance aluminum electrolytic capacitor that balances low impedance, strong ripple-current capability, and long-term thermal endurance. Its radial-lead package and robust electrical specs make it well suited to power supply filtering, converter I/O smoothing, and general-purpose energy storage on 50 V systems.

For designs where lifecycle predictability, frequency response, and compact through-hole mounting are priorities, this part offers a reliable component choice supported by Nichicon’s UHW series specifications.

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