UPT2G390MHD

The UPT2G390MHD is a radial-lead aluminum electrolytic capacitor in Nichicon’s UPT series designed for high ripple current and long-life applications. It delivers 39 µF capacitance at a 400 V rating in a compact φ12.5 × 30.5 mm can while supporting extended operation up to 105°C.

Typical use cases include ballast and other general-purpose power circuits where sustained ripple handling, predictable leakage behavior, and extended endurance are required.

Key Features

• Capacitance & Voltage — 39 µF nominal capacitance with a 400 V rated voltage and a tolerance of ±20% (−20% to +20%).
• High Ripple Capability — Rated ripple current of 320 mA at 120 Hz and 512 mA at 10 kHz for improved AC stress handling in power circuits.
• Long Endurance — Rated life of 5000 hours at 105°C under DC bias plus rated ripple current, with defined limits for capacitance change, tan δ, and leakage current after endurance testing.
• Electrical Losses — tan δ (DF) maximum of 0.15 measured at 20°C, 120 Hz for the 400 V rating.
• Leakage Current Specified — Leakage current value listed as 946 µA, measured per the product’s specification conditions.
• Mechanical & Mounting — Radial lead, can-style package with φ12.5 mm diameter and 30.5 mm length; lead spacing 5.0 mm (±0.5 mm) for through-hole PCB mounting.
• Temperature Range & Compliance — Operating range −40°C to +105°C and RoHS compliant.
• Packaging Options — Available in bulk (no terminal forming) and bag packing to suit production or prototyping workflows.

Typical Applications

• Ballast and Lamp Drivers — Designed and specified for ballast applications where high ripple current and thermal endurance are required.
• General-Purpose Power Electronics — Suitable for filtering and smoothing duties in power supplies and other general-purpose circuits requiring 400 V capacitance.
• High-Ripple Environments — Used where predictable ripple performance and long life at elevated temperatures are important to system reliability.

Unique Advantages

• High ripple handling: Rated ripple currents (320 mA at 120 Hz, 512 mA at 10 kHz) reduce stress on the capacitor in AC-rich power environments.
• Long-term thermal endurance: 5000 hours at 105°C under rated conditions supports extended operational lifetimes in hot enclosures.
• Compact power density: 39 µF at 400 V in a φ12.5 × 30.5 mm can provides a small footprint solution for high-voltage circuits.
• Predictable electrical behavior: Specified tan δ and leakage current values enable straightforward design margining and bias planning.
• RoHS compliant: Meets environmental requirements for lead-free usage in assemblies.

Why Choose UPT2G390MHD?

UPT2G390MHD combines a high 400 V rating with robust ripple-current capability and a long 5000-hour endurance at 105°C, making it a practical choice for designers building high-voltage, high-stress power circuits. Its compact radial-can form factor and defined electrical characteristics simplify BOM selection and thermal/ripple budgeting for ballast and general-purpose power applications.

This capacitor suits engineers and procurement teams looking for a predictable, RoHS-compliant electrolytic solution for sustained-duty high-voltage designs where ripple performance and operational lifetime are key selection criteria.

Request a quote or submit an inquiry to our sales team to confirm pricing, availability, and packaging options for the UPT2G390MHD.