UPM2A391MHD

The UPM2A391MHD is a radial-lead aluminum electrolytic capacitor offering 390 µF capacitance at a 100 V rating. It is part of Nichicon’s UPM series engineered for low impedance and extended endurance under elevated temperature stress.

Targeted at automotive and other demanding electronic power applications, this polarized can-type capacitor delivers measurable ripple handling, low dissipation factor, and AEC‑Q200 qualification for designs that require long-term reliability and stable performance across –55 °C to +105 °C.

Key Features

• Capacitance & Voltage — 390 µF nominal capacitance with ±20% tolerance rated to 100 V for energy storage and smoothing on higher-voltage rails.
• Low Loss / Low Impedance — tanδ 0.08 measured at 20 °C, 120 Hz and typical impedance of 53 mΩ, supporting efficient filtering and low thermal dissipation.
• Ripple Current Capability — 930 mA at 120 Hz (low frequency) and 1.55 A at 200 kHz (high frequency) for reliable AC ripple handling in power stages.
• Leakage Current — Specified leakage current of 1,170 µA, allowing predictable bias behavior after voltage application.
• High-Temperature Endurance — 5,000 hours rated life at 105 °C under DC bias plus rated ripple current, providing extended operational lifetime in hot environments.
• Wide Operating Range — Operating temperature from –55 °C to +105 °C to cover harsh thermal conditions.
• Mechanical / Packaging — Radial lead can: size φ16 × 35.5 mm with 7.5 mm lead spacing (±0.5 mm). Available in bulk (no terminal forming) or bag packing.
• Qualification & Compliance — AEC‑Q200 listed and RoHS compliant, supporting regulated-industry use and environmental requirements.
• Polarized, Through-Hole Form — Radial-lead construction for straightforward insertion and mechanical robustness in through-hole assemblies.

Typical Applications

• Automotive power electronics — Smoothing and bulk energy storage on higher-voltage rails in control modules where AEC‑Q200 qualification and 105 °C endurance are required.
• ECU and power-module decoupling — Low impedance and specified ripple current values support stable DC bus filtering and transient suppression in electronic control units.
• Industrial power supplies — 100 V rating and long-life endurance make this capacitor suitable for higher-voltage supply filtering in industrial controllers and converters.

Unique Advantages

• Extended high-temperature life: 5,000 hours at 105 °C provides predictable aging characteristics for designs exposed to sustained elevated temperatures.
• Measurable low dissipation: tanδ of 0.08 at 20 °C, 120 Hz and 53 mΩ impedance enable efficient filtering with reduced heat generation.
• Dual-frequency ripple handling: Specified ripple currents at both 120 Hz and 200 kHz support performance across low- and high-frequency power domains.
• Automotive-grade qualification: AEC‑Q200 listing aligns the component with automotive design processes and quality expectations.
• Through-hole robustness: Radial can construction and defined lead spacing simplify assembly and provide mechanical stability in vibration-prone environments.
• Regulatory compliance: RoHS compliance supports environmental and regulatory requirements for commercial and regulated markets.

Why Choose UPM2A391MHD?

UPM2A391MHD combines a high-voltage 100 V rating with substantial capacitance and low-loss characteristics to address smoothing, decoupling, and bulk energy needs in demanding systems. Its 5,000-hour endurance at 105 °C, AEC‑Q200 listing, and defined ripple-current specifications make it suited to engineers who require predictable, long-term performance under thermal and electrical stress.

This part is a practical choice for designers of automotive and industrial power electronics who need a robust, RoHS-compliant, through-hole capacitor with clear mechanical dimensions and handling options for volume assembly.

If you would like pricing, lead-time information, or a formal quote for UPM2A391MHD, please request a quote or contact our sales team to discuss your quantity and delivery requirements.