ULD2G3R9MPD

The ULD2G3R9MPD is a Nichicon ULD-series radial lead aluminum electrolytic capacitor offering 3.9 µF capacitance at a 400 V rating. It is a miniature, polarized radial-can capacitor designed for general-purpose electronic applications and is noted in the ULD series for long-life operation.

Key value comes from high-voltage handling, compact φ10 × 12.5 mm packaging, and extended endurance—making it appropriate for compact power supply circuits including LED lighting power supplies and other general-purpose DC power applications.

Key Features

• Electrical Rating: 3.9 µF nominal capacitance at a rated voltage of 400 V; capacitance tolerance -20% to +20%.
• Low-loss Characteristic: tanδ (DF) = 0.24 measured at 20°C, 120 Hz for the 400 V rating, supporting stable AC performance in filtering roles.
• Ripple and Leakage: Low-frequency ripple current 57 mA (120 Hz) and high-frequency ripple current 114 mA (100 kHz); leakage current specified at 162.4 µA.
• Long Life Endurance: Rated life of 15,000 hours at +105°C for the φ10 × 12.5 mm package size, consistent with the ULD series long-life design.
• Compact Radial Can Package: φ10 × 12.5 mm can with radial leads, 5.0 mm lead spacing (±0.5 mm); available in bulk (no terminal forming) or bag packing.
• Wide Operating Temperature: Specified for use from -40°C to +105°C to cover a broad range of environmental conditions.
• RoHS Compliance: Meets RoHS requirements as specified in product materials information.

Typical Applications

• LED Lighting Power Supplies: Compact high-voltage filtering and smoothing in LED driver circuits where long-life components are required.
• General-Purpose Power Supplies: DC link, smoothing and decoupling duties in small form-factor power modules and control electronics.
• Industrial and Consumer Electronics: Use in compact assemblies requiring a 400 V polarized electrolytic with extended endurance and stable loss characteristics.

Unique Advantages

• High-Voltage Capability: 400 V rating enables use in higher-voltage DC circuits and power sections without upsizing capacitor geometry.
• Extended Operational Lifetime: 15,000 hours at 105°C for the φ10 × 12.5 mm size provides predictable long-term service in elevated-temperature environments.
• Compact Footprint: φ10 × 12.5 mm radial-can package conserves PCB area for compact power and lighting designs.
• Controlled AC Loss: Specified tanδ of 0.24 at 120 Hz (20°C) supports predictable dissipation and thermal behavior in filtering applications.
• Practical Ripple Handling: Published low- and high-frequency ripple current ratings (57 mA @120 Hz, 114 mA @100 kHz) enable designers to evaluate performance across frequency ranges.
• Packaging Options: Available in bulk or bag packing to support different assembly and inventory workflows.

Why Choose ULD2G3R9MPD?

ULD2G3R9MPD combines a 400 V rating and compact φ10 × 12.5 mm radial-can package with the ULD-series emphasis on long life, making it well suited for engineers designing compact, high-voltage power stages and LED driver supplies. Its specified ripple, leakage, tanδ, and long-endurance rating at 105°C give clear, verifiable parameters for thermal and reliability planning.

This part is ideal for designers and procurement teams seeking a Nichicon ULD-series aluminum electrolytic with verified performance data—compact size, high-voltage capability, and long-term endurance—to simplify component selection and support robust power designs.

Request a quote or submit your project specifications to our sales team to discuss availability, lead times, and packaging options for ULD2G3R9MPD.