UPM2A391MHD6

The UPM2A391MHD6 is a radial-lead aluminum electrolytic capacitor from Nichicon’s UPM series, specified at 390 µF and 100 V. It delivers low impedance and high reliability in a compact radial can package for power filtering and energy-storage duties.

Designed for demanding temperature and load conditions, this part is AEC-Q200 qualified and RoHS compliant, making it suitable for professional applications that require sustained ripple handling and long-term endurance up to 105°C.

Key Features

• Capacitance & Voltage — 390 µF nominal capacitance with a 100 V rated voltage and ±20% tolerance at 120 Hz, 20°C.
• Low Impedance Performance — Rated impedance 62 mΩ and tanδ 0.08 (measured at 20°C, 120 Hz) for efficient AC ripple suppression.
• High Ripple Current Capability — Supports 858 mA at 120 Hz (low frequency) and 1.43 A at 200 kHz (high frequency), enabling effective smoothing under varying switching conditions.
• Long Endurance — 5000 hours rated life at 105°C when loaded per endurance conditions; specified stability after restoration to 20°C.
• Wide Temperature Range — Operates from −55°C to +105°C to accommodate harsh thermal environments.
• Mechanical & Mounting — Radial lead can (φ18 × 30.5 mm length) with 7.5 mm lead spacing (±0.5 mm) for through-hole mounting and straightforward assembly.
• Leakage & Polarization — Polarized electrolytic design with a measured leakage current of 1170 µA and typical leakage specification methodology per product test conditions.
• Compliance — AEC-Q200 rating and RoHS compliant for regulated and automotive applications.

Typical Applications

• Automotive Power Electronics — Suitable for DC-link and bulk smoothing in automotive power systems where AEC-Q200 qualification and 105°C endurance are required.
• Switch-Mode Power Supplies — Low impedance and measurable high-frequency ripple current support output filtering and decoupling in converter stages.
• Industrial Drives & Inverters — Robust temperature rating and long-life specification make it appropriate for sustained ripple duty in industrial power modules.

Unique Advantages

• High ripple handling: Specified ripple currents at both 120 Hz and 200 kHz (858 mA / 1.43 A) allow reliable performance across low- and high-frequency switching environments.
• Low ESR/Impedance: 62 mΩ impedance and a low tanδ (0.08 at 120 Hz) reduce heat generation and improve filtering efficiency.
• Long-term reliability: 5000-hour load-life rating at 105°C provides design confidence for prolonged service life under elevated temperatures.
• Automotive-grade qualification: AEC-Q200 rating supports use in automotive electronics designs requiring validated component robustness.
• Compact radial form factor: φ18 × 30.5 mm can with 7.5 mm lead spacing simplifies through-hole placement and mechanical retention in assemblies.
• Regulatory compliance: RoHS compliance supports environmentally regulated manufacturing and product deployment.

Why Choose UPM2A391MHD6?

UPM2A391MHD6 positions itself as a durable, low-impedance solution for designers needing high-capacitance, high-voltage electrolytic performance in a radial through-hole package. Its combination of measurable low impedance, defined ripple current capability, and a 5000-hour endurance at 105°C addresses reliability and thermal-stress requirements in professional power designs.

This part is well suited to engineers developing automotive and industrial power systems who require AEC-Q200 qualification, predictable lifetime behavior, and straightforward mechanical integration. Selecting UPM2A391MHD6 helps ensure consistent filtering performance and long-term stability in demanding operating environments.

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