UHE1J331MHD

The UHE1J331MHD is a radial lead aluminum electrolytic capacitor in Nichicon's UHE series, designed for general-purpose electronic designs that require compact, long-life energy storage. It delivers 330 µF at a rated voltage of 63 V in a compact φ12.5 × 25 mm can with 5 mm lead spacing.

Key value is provided by a combination of low impedance, measurable ripple-current capability and extended endurance: low impedance (450 mΩ), specified ripple current up to 875 mA at higher frequencies, and a rated life of 10,000 hours at 105°C, making it suitable for demanding thermal and ripple environments within its operating range of −40°C to +105°C.

Key Features

• Capacitance & Voltage — 330 µF nominal capacitance with a rated voltage of 63 V and tolerance of −20% to +20% for predictable energy storage in power circuits.
• Low Impedance — Specified impedance of 450 mΩ supports lower voltage drop under ripple and transient conditions.
• Ripple Current Performance — Rated low-frequency ripple current of 612.5 mA at 120 Hz and high-frequency capability of 875 mA at 10 kHz, together with frequency coefficients provided in the series datasheet for design scaling.
• Long Life Endurance — 10,000 hours lifetime at 105°C when used within specified conditions, offering extended service life for continuous-duty applications.
• Thermal Range — Operates from −40°C to +105°C, supporting designs exposed to wide temperature swings.
• Form Factor & Mounting — Radial lead can (φ12.5 × 25 mm) with 5 mm lead spacing (±0.5 mm) for through-hole mounting and straightforward PCB layout; available in bulk or bag packing.
• Leakage & Loss — Specified leakage current of 207.9 µA and tangent of loss angle (tan δ) of 0.09 at 20°C, 120 Hz, enabling predictable quiescent performance.
• Regulatory — RoHS compliant.

Typical Applications

• Power Supply Filtering — Bulk and smoothing capacitance in mid-voltage power supplies where 63 V rating and 330 µF capacity reduce ripple and stabilize rails.
• Decoupling for Power Stages — Local decoupling for DC–DC converters and power amplifiers that require low impedance and rated ripple-current capability.
• Backup & Hold-up — Energy storage for short-term hold-up in control electronics where extended life at elevated temperature is required.

Unique Advantages

• Measurable Low-Impedance Design — 450 mΩ impedance specification supports lower ESR-related losses and improved transient response compared with unspecified generic capacitors.
• Rated for Continuous High-Temperature Operation — 10,000-hour endurance at 105°C helps reduce maintenance and replacement in continuous-duty applications.
• Frequency-graded Ripple Capability — Distinct low- and high-frequency ripple current ratings (612.5 mA at 120 Hz; 875 mA at 10 kHz) allow designers to size the capacitor based on the operating ripple spectrum.
• Compact Through-Hole Form Factor — φ12.5 × 25 mm can with 5 mm lead spacing provides a small footprint for through-hole designs without sacrificing capacitance.
• Predictable Loss and Leakage — Specified tan δ (0.09 at 20°C, 120 Hz) and leakage current (207.9 µA) enable accurate power-loss and standby-current calculations during design.
• RoHS Compliance — Meets RoHS requirements for environmental and regulatory alignment.

Why Choose UHE1J331MHD?

The UHE1J331MHD is positioned for engineers who need a compact, long-life aluminum electrolytic capacitor with clearly defined impedance, ripple, leakage, and endurance specifications. Its combination of 330 µF at 63 V, low impedance, and a 10,000-hour life rating at 105°C makes it suitable for demanding general-purpose power-electronics roles where predictable electrical and thermal behavior is required.

This part is well suited to design teams focused on reliable, maintainable products—especially in applications that demand through-hole mounting and measurable ripple handling. RoHS compliance and bulk/bag packaging options support procurement and manufacturing workflows.

Request a quote or submit an inquiry to receive pricing and availability for UHE1J331MHD and to discuss volume and packaging options.