UHW2A271MHD

The UHW2A271MHD is a radial-lead aluminum electrolytic capacitor from Nichicon's UHW series. It delivers 270 µF capacitance at a 100 V rating in a compact φ12.5 × 30.5 mm can, designed for general-purpose electronic applications that require high ripple-current capability and reliable long-term endurance.

Built for circuits operating across –40 °C to 105 °C, this polarized capacitor combines low impedance, measured at 130 mΩ, with rated ripple-current performance up to 1.2 A at 120 Hz and 2.4 A at 10 kHz, making it a practical choice where compact size and sustained ripple handling are required.

Key Features

• Capacitance and Voltage — 270 µF nominal capacitance with a rated voltage of 100 V and a tolerance of −20% to +20%.
• High Ripple Current — Low-frequency ripple current of 1.2 A at 120 Hz and high-frequency ripple current of 2.4 A at 10 kHz for effective smoothing in power circuits.
• Low Impedance — Rated impedance of 130 mΩ supports stable performance at higher frequencies.
• Long Endurance — Endurance specified at 12,000 hours at 105 °C under rated voltage and ripple conditions.
• Temperature Range — Operates from −40 °C to 105 °C to accommodate a wide range of environmental conditions.
• Compact Radial Can — Small footprint: φ12.5 × 30.5 mm (D × L); lead spacing 5.0 mm (±0.5 mm). Lead diameter 0.6 mm (0.8 mm if L > 25 mm), radial-lead mounting.
• Electrical Loss & Leakage — tan δ of 0.08 (measured at 20 °C, 120 Hz) and leakage current listed as 270 µA.
• Environmental Compliance — RoHS compliant.
• Packaging — Available in bulk (no terminal forming) or bag packing for flexible procurement and assembly workflows.

Typical Applications

• General-purpose power electronics — Used for bulk filtering and energy storage where a compact 270 µF, 100 V capacitor with high ripple capability is required.
• DC power supplies — Suited for smoothing and ripple reduction in supply rails thanks to its low impedance and high ripple-current ratings.
• Industrial control and instrumentation — Appropriate for control electronics that demand long endurance at elevated temperatures up to 105 °C.

Unique Advantages

• High ripple-current capability: 1.2 A at 120 Hz and 2.4 A at 10 kHz supports effective filtering in both low- and high-frequency power circuits.
• Compact radial package: φ12.5 × 30.5 mm size and 5 mm lead spacing make it easy to integrate into space-constrained PCB layouts.
• Extended high-temperature life: 12,000-hour endurance at 105 °C delivers predictable long-term performance in demanding thermal environments.
• Low impedance and controlled losses: 130 mΩ impedance and tan δ of 0.08 (20 °C, 120 Hz) contribute to stable operation and lower heating under ripple stress.
• Polarized design for power applications: The polarized aluminum electrolytic chemistry provides high capacitance density for energy storage in DC circuits.
• RoHS compliant: Conforms to RoHS environmental requirements for regulatory alignment.

Why Choose UHW2A271MHD?

The UHW2A271MHD positions itself as a compact, high-ripple-current aluminum electrolytic capacitor optimized for general-purpose power applications. Its combination of 270 µF capacitance at 100 V, low impedance, and long endurance at 105 °C makes it well suited for designers seeking reliable smoothing and energy-storage components in space-constrained PCB designs.

This part is appropriate for engineers specifying components for power supplies, industrial controls, and other electronics that require sustained ripple handling and predictable aging characteristics. With RoHS compliance and multiple packaging options, it supports both prototyping and higher-volume assembly workflows.

To request a quote or submit a purchase inquiry for UHW2A271MHD, please contact the sales team or request a formal quote through the supplier channels provided by Nichicon.