UHE2A331MHD6

The UHE2A331MHD6 from Nichicon is a radial-lead aluminum electrolytic capacitor in the UHE series, designed for miniature, low-impedance, high-reliability applications. With a 100 V rating and 330 µF capacitance, it targets general-purpose electronic equipment that requires stable bulk capacitance, high ripple handling and long operational life.

Key Features

• Capacitance and Tolerance — 330 µF nominal capacitance with tolerance of -20% to +20% at 120 Hz, 20°C for predictable bulk energy storage.
• High Voltage Rating — Rated voltage 100 V for designs requiring elevated DC bias capability.
• Low Impedance & Loss — Specified impedance of 300 mΩ and tanδ (DF) of 0.08 at 20°C, 120 Hz to support low-loss filtering and decoupling.
• Ripple Current Capability — Rated ripple current of 910 mA at 120 Hz (low frequency) and 1.3 A at 10 kHz (high frequency) for effective smoothing under dynamic loads.
• Leakage Current — Leakage current specified at 330 µA for control of standby losses and predictable bias behavior.
• Long Endurance — 10,000 hours life rating at 105°C for extended reliability in continuous-duty thermal environments.
• Wide Operating Temperature — Rated for -40°C to +105°C to accommodate a broad range of ambient conditions.
• Compact Radial Package — φ18 × 20 mm can with 7.5 mm lead spacing (±0.5 mm); available in bulk or bag packing for flexible assembly and inventory handling.
• Environmental Compliance — RoHS compliant as part of the UHE series commitment to regulatory requirements.

Typical Applications

• Power supply smoothing — Use the 330 µF capacitance and 100 V rating to stabilize DC rails and reduce ripple in power converters and supplies.
• Decoupling for high-voltage rails — Low impedance and measurable ripple handling at both 120 Hz and 10 kHz make it suitable for decoupling stages on elevated-voltage circuits.
• General-purpose electronics — Suited to designs that require reliable bulk capacitance and long life across a wide temperature range.

Unique Advantages

• Long operational life: 10,000 hours at 105°C reduces maintenance and replacement frequency in continuous-duty applications.
• Dual-frequency ripple performance: Rated ripple currents at 120 Hz and 10 kHz provide predictable behavior across low- and high-frequency noise environments.
• Low dissipation: Tanδ of 0.08 and 300 mΩ impedance help minimize power loss and heating under load.
• Compact radial form factor: φ18 × 20 mm can with 7.5 mm lead spacing delivers a small footprint for space-constrained PCBs.
• Regulatory-ready: RoHS compliance supports environmentally conscious product builds and supply-chain requirements.

Why Choose UHE2A331MHD6?

The UHE2A331MHD6 combines high-voltage capability, substantial bulk capacitance and low impedance in a compact radial package from Nichicon’s UHE series. Its 100 V rating, controlled loss characteristics and long endurance at 105°C make it well suited to general-purpose designs that demand reliable smoothing and decoupling over extended operational periods.

This part is appropriate for engineers specifying capacitors for power rails and general electronic systems where predictable ripple handling, thermal endurance and RoHS compliance are required. Available in bulk or bag packing, it supports production and prototyping workflows.

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