UPJ1H331MPD

The UPJ1H331MPD is a radial-leaded aluminum electrolytic capacitor rated at 330 µF and 50 V. It belongs to Nichicon's UPJ series designed for low impedance performance and high reliability in power applications.

Targeted at general-purpose electronics and switching power supplies, this part delivers elevated ripple-current capability and long-term endurance for demanding power-conversion designs.

Key Features

• Capacitance & Voltage — 330 µF nominal capacitance with a 50 V rated voltage and ±20% tolerance (120 Hz, 20°C), suitable for bulk energy storage in power rails.
• Low impedance construction — Engineered for low impedance at operating frequencies, improving filtering and transient response in switching power supplies.
• High ripple-current capability — Rated ripple currents of 577.1 mA at 120 Hz and 995 mA at 200 kHz support heavy AC loading and high-frequency switching environments.
• Thermal and long-life performance — Endurance of 5000 hours at 105°C under DC bias plus rated ripple current, enabling sustained operation at elevated temperatures.
• Loss angle (tan δ) — tan δ = 0.10 (measured at 20°C, 120 Hz) for predictable dissipation characteristics.
• Compact radial can package — Case size φ10 × 30.5 mm L with 5 mm lead spacing (±0.5 mm) and radial lead mounting for through-hole assemblies.
• Leakage current — Specified leakage current of 495 µA after rated voltage application, useful for power-budgeting and standby considerations.
• Regulatory compliance — RoHS compliant for environmentally conscious designs.
• Packaging options — Available in bulk (no terminal forming) or bag packing to suit assembly and procurement preferences.

Typical Applications

• Switching power supplies — Low impedance and high ripple-current ratings make the UPJ1H331MPD well suited for output-stage filtering in SMPS designs.
• General-purpose electronic equipment — Reliable bulk capacitance for industrial and commercial electronics that require stable energy storage and filtering.
• High-ripple environments — Suitable where elevated AC ripple and high-frequency currents are present, supported by specified ripple-current limits at 120 Hz and 200 kHz.

Unique Advantages

• Long-term elevated-temperature endurance: 5000 hours at 105°C ensures consistent performance under sustained thermal stress.
• High-frequency readiness: Ripple-current ratings at both low (120 Hz) and high (200 kHz) frequencies accommodate a wide range of switching regimes.
• Predictable dissipation: A measured tan δ of 0.10 at 20°C and 120 Hz provides known loss behavior for thermal and efficiency planning.
• Compact, through-hole form factor: φ10 × 30.5 mm radial can with 5 mm lead spacing offers a space-efficient solution for PCB-mounted power stages.
• RoHS compliance: Meets environmental directive requirements for restricted substances.
• Multiple packing choices: Bulk or bag packing helps streamline inventory and assembly workflows.

Why Choose UPJ1H331MPD?

The UPJ1H331MPD combines 330 µF bulk capacitance with a 50 V rating and low-impedance construction to address the needs of power-conversion and general-purpose electronics. Its specified ripple-current capability and 5000-hour life at 105°C deliver a balance of performance and reliability for sustained operation in switching environments.

This capacitor is ideal for designers and procurement teams specifying through-hole power components that require verified endurance, clear electrical characteristics (tan δ, leakage), and compact radial packaging for PCB power rails and assemblies.

Request a quote or submit a pricing inquiry to receive lead time and volume pricing information for UPJ1H331MPD.