UHV1E391MPD

The UHV1E391MPD is a radial-lead aluminum electrolytic capacitor from Nichicon's UHV series. It delivers 390 µF capacitance at a 25 V rating in a compact φ8 × 15 mm can designed for low impedance and high ripple handling.

Engineered for general-purpose power applications, the part combines low high-frequency impedance, long endurance at elevated temperature, and RoHS compliance for reliable use across a range of industrial and consumer designs.

Key Features

• Capacitance & Voltage — 390 µF rated capacitance with a tolerance of −20% to +20% at 120 Hz, 20°C, rated for 25 V operation.
• Low Impedance & Loss — Rated impedance of 143 mΩ and tan δ (DF) of 0.13 measured at 20°C, 120 Hz, supporting improved ripple suppression.
• High Ripple Current — Capable of 665 mA at 120 Hz (low frequency) and 1.33 A at 100 kHz (high frequency), enabling robust performance in switching environments.
• Endurance & Temperature Range — Life rating of 6000 hours at 105°C and operating range from −40°C to +105°C for extended reliability under elevated temperature stress.
• Physical & Mounting — Radial lead, polarized can with dimensions φ8 × 15 mm, lead spacing 3.5 mm (±0.5 mm), and standard radial can packaging in bulk or bag packing.
• Leakage & Polarization — Specified leakage current of 97.5 µA (after 2 minutes at 20°C) and polarized design for correct orientation in DC circuits.
• Compliance & Production Status — RoHS compliant and in mass production.

Typical Applications

• Power Supply Filtering — Smoothing and ripple suppression on 25 V and lower DC rails using 390 µF capacitance and low impedance characteristics.
• Switching Regulators and DC‑DC Converters — Supports high-frequency ripple currents (1.33 A at 100 kHz), making it suitable for output filtering in switching power stages.
• Industrial Control and Instrumentation — Wide operating temperature (−40°C to +105°C) and 6000 h endurance at 105°C suit long‑lived, thermally demanding applications.
• Compact Consumer and Embedded Electronics — Small φ8 × 15 mm footprint and radial-lead mounting for space-constrained through-hole assemblies.

Unique Advantages

• Low high-frequency impedance: Documented lower impedance at high frequency and a measured 143 mΩ impedance help reduce output ripple and improve regulator stability.
• High ripple capability: Dual-specified ripple ratings (665 mA at 120 Hz, 1.33 A at 100 kHz) allow use in both low- and high-frequency power designs without oversizing.
• Proven endurance at elevated temperature: 6000 hours at 105°C supports designs requiring sustained thermal reliability.
• Compact, through-hole form factor: φ8 × 15 mm radial can and 3.5 mm lead spacing simplify placement in PCB layouts where board space is limited.
• Ready for production: Bulk and bag packing options and mass-production status facilitate prototyping through volume manufacturing.

Why Choose UHV1E391MPD?

UHV1E391MPD combines the UHV series focus on lower high-frequency impedance with a compact radial-can package and high ripple capability, making it a practical choice for engineers who need dependable smoothing and energy storage in 25 V and lower DC systems. Its polarized radial-lead design and small footprint suit through-hole assembly processes while delivering measurable performance in noisy switching environments.

With a 6000‑hour endurance at 105°C, RoHS compliance, and production-ready packaging, this capacitor is positioned for designers of industrial, embedded, and consumer products seeking a robust, space-efficient electrolytic solution backed by Nichicon's UHV series design characteristics.

Request a quote or submit a procurement inquiry for part number UHV1E391MPD to get pricing and availability information for your design.