UHE1E331MPD

The UHE1E331MPD is a radial-lead aluminum electrolytic capacitor from Nichicon’s UHE series, offering a 330 µF capacitance at a 25 V rating in a compact φ8 × 15 mm can. Designed for general-purpose electronic use, it targets applications that need compact bulk capacitance with robust ripple-current handling and extended operational life.

As part of the UHE family it delivers low impedance and long-life characteristics, with a rated operating temperature of −40°C to 105°C and endurance specified at 7000 hours at 105°C.

Key Features

• Capacitance & Voltage — 330 µF capacitance with a 25 V rated voltage and a capacitance tolerance of ±20% (−20%~20%).
• Low Impedance — Specified impedance of 350 mΩ, supporting lower ESR requirements for power filtering and decoupling.
• Loss Angle (tan δ) — tanδ 0.14 (max) measured at 20°C, 120 Hz (rated voltage), providing predictable dissipation characteristics for design calculations.
• Ripple Current Capability — Low-frequency ripple current of 588 mA at 120 Hz and high-frequency ripple current of 840 mA at 10 kHz, rated for continuous ripple loading within specified limits.
• Leakage Current — Measured leakage current of 82.5 µA, useful for power budget and standby current considerations.
• Long Endurance — Rated life of 7000 hours at 105°C under DC bias plus rated ripple current (for 16–100 V group), supporting extended operational deployments.
• Compact Radial Package — φ8 × 15 mm can with 3.5 mm lead spacing (±0.5 mm tolerance), radial-lead mounting for through-hole assemblies; available in bulk (no terminal forming) or bag packing.
• Environment — RoHS compliant and supplied in mass-production status.

Typical Applications

• General-purpose power filtering — Bulk decoupling and smoothing in power supplies and regulator outputs where 330 µF at 25 V is required.
• Ripple current handling in compact designs — Supports both low-frequency (120 Hz) and high-frequency (10 kHz) ripple currents for compact power modules.
• Industrial and consumer electronics — Useful in PCB-level energy storage and filtering where a small footprint (φ8 × 15 mm) and radial-lead mounting are preferred.

Unique Advantages

• Compact high-capacitance solution: 330 µF in a φ8 × 15 mm can provides significant capacitance density for space-constrained boards.
• Predictable thermal performance: Rated for −40°C to 105°C operation with specified endurance of 7000 hours at 105°C, enabling reliable operation in elevated-temperature environments.
• Designed for ripple stress: Specified ripple current ratings at both 120 Hz and 10 kHz allow designers to size capacitors against expected AC loading.
• Low impedance and controlled losses: 350 mΩ impedance and tanδ data help with thermal and loss budgeting in power designs.
• Through-hole robustness: Radial lead form factor with defined lead spacing and packaging options simplifies prototyping and manual assembly workflows.
• Regulatory compliance: RoHS compliant for use in environments requiring restricted-substance conformance.

Why Choose UHE1E331MPD?

The UHE1E331MPD positions itself as a reliable, compact aluminum electrolytic capacitor suited to designs that require substantial capacitance, solid ripple-current capability, and extended life at elevated temperatures. Its radial-lead package and φ8 × 15 mm footprint make it a practical choice for through-hole assemblies and compact power stages.

This part is appropriate for engineers specifying general-purpose power filtering and decoupling where predictable impedance, controlled losses (tanδ), and verified leakage and ripple specifications are important. RoHS compliance and Nichicon’s UHE-series design objectives emphasize low impedance and long-term reliability for sustained operation.

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