UHE2A390MPD

The UHE2A390MPD is a radial-lead aluminum electrolytic capacitor from Nichicon’s UHE series, offering a 39 µF capacitance at a 100 V rating in a compact φ8×15 mm can. It is designed as a miniature, low-impedance, high-reliability electrolytic solution for general-purpose power applications.

With a wide operating temperature range and a long endurance rating at elevated temperature, this part addresses applications that require stable filtering, decoupling and energy storage under continuous bias and ripple conditions.

Key Features

• Electrical Performance — 39 µF capacitance with ±20% tolerance and a rated voltage of 100 V; impedance specified at 2.1 Ω and tanδ (DF) of 0.08 measured at 20°C, 120 Hz, 100 V.
• Ripple Current Handling — Rated low-frequency ripple current of 234.5 mA at 120 Hz and high-frequency ripple current of 335 mA at 10 kHz, enabling effective smoothing and filtering under varying ripple conditions.
• Leakage and Polarization — Polarized electrolytic construction with a specified leakage current of 39 µA after standard application conditions.
• Long Life Endurance — Rated for 7000 hours at 105°C (for applicable case sizes and voltages), supporting extended operation in elevated-temperature environments.
• Compact Radial Package — φ8×15 mm can with radial lead spacing of 3.5 mm (±0.5 mm) and standard radial-lead mounting for through-hole PCBs.
• Operating Range — Rated for operation from −40°C to +105°C to cover a broad set of ambient conditions.
• RoHS Compliant — Manufactured in compliance with RoHS requirements.

Typical Applications

• General-purpose power filtering — Bulk smoothing and ripple reduction in moderate-voltage power supplies where a 100 V rated capacitor is required.
• Power converter input/output — Decoupling and energy buffering in DC–DC or AC–DC converters operating within the part’s voltage and ripple ratings.
• Industrial control electronics — Capacitor for supply stabilization in control modules and sensor interfaces that operate across −40°C to +105°C.
• Signal and power decoupling — Local energy reservoir for boards needing compact, polarized capacitance with defined leakage and impedance characteristics.

Unique Advantages

• Low impedance design: The UHE series construction yields a low impedance (2.1 Ω listed) and a low tanδ (0.08 at 120 Hz, 20°C, 100 V), improving filtering efficiency and transient response.
• High ripple capability: Defined ripple current ratings at both low and high frequencies (234.5 mA at 120 Hz, 335 mA at 10 kHz) allow predictable thermal and lifetime planning under real-world ripple conditions.
• Extended high-temperature life: Rated for 7000 hours at 105°C for applicable sizes and voltages, providing a clear endurance metric for reliability-sensitive designs.
• Compact form factor: The φ8×15 mm radial-can package with 3.5 mm lead spacing offers space-efficient, through-hole installation for boards with limited real estate.
• Clear electrical limits: Specified leakage current and impedance figures enable straightforward design verification and system-level derating decisions.
• Regulatory conformity: RoHS compliance supports deployment in regions and products that require restricted-substance adherence.

Why Choose UHE2A390MPD?

UHE2A390MPD positions itself as a compact, reliable aluminum electrolytic capacitor for designers who need a clear combination of voltage capability (100 V), defined ripple performance, and long high-temperature endurance (7000 hours at 105°C). Its measured electrical parameters—impedance, tanδ and leakage current—make it straightforward to model in power-filtering and decoupling applications.

This part is well suited to engineers and buyers specifying general-purpose electrolytic capacitors for industrial, power electronics and embedded systems where predictable lifetime and thermal behavior are important. The combination of compact radial packaging, robust ripple ratings and RoHS compliance delivers a verifiable component choice for production designs.

Request a quote or submit an inquiry to receive pricing, availability and packaging options for UHE2A390MPD. Our team can provide quantity pricing and lead-time details to support your design and procurement planning.