UHV1V391MPD

The UHV1V391MPD is a radial‑lead aluminum electrolytic capacitor from Nichicon’s UHV series, designed for general‑purpose power filtering and decoupling. It combines a 390 µF capacitance at 35 V with a compact φ8 × 20 mm can and radial lead footprint for through‑hole applications.

As part of the UHV family, this part offers lower impedance at high frequency and high ripple capability, making it suitable where compact size, high ripple handling and stable performance over temperature are required. It is RoHS compliant and available in bulk/bag packing for production use.

Key Features

• Capacitance and Voltage — 390 µF nominal capacitance with a rated voltage of 35 V and tolerance of −20% to +20% for general‑purpose energy storage and smoothing.
• High ripple current capability — Rated low‑frequency ripple current 775 mA at 120 Hz and high‑frequency ripple current 1.55 A at 100 kHz, suitable for applications with significant AC ripple components.
• Low high‑frequency impedance — Impedance specified at 105 mΩ (20°C / 100 kHz), supported by the UHV series’ design focus on reduced impedance in the high‑frequency range.
• Thermal and endurance performance — Operational temperature range −40°C to +105°C with endurance of 6000 hours at 105°C under rated conditions.
• Leakage and loss characteristics — Leakage current specified at 136.5 µA and tangent of loss angle (tan δ) of 0.11 at 20°C, 120 Hz, 35 V for predictable dissipation and aging behavior.
• Compact radial can package — φ8 × 20 mm can, radial lead spacing 3.5 mm (±0.5 mm), lead diameter 0.6 mm, supplied in bulk/no terminal forming or bag packing for assembly flexibility.
• Regulatory and availability — RoHS compliant and in mass production status for straightforward procurement and supply continuity.

Typical Applications

• General‑purpose power filtering — Bulk smoothing and decoupling in power rails where 390 µF and 35 V rating meet design requirements.
• Switching power supplies and DC‑DC converters — Low high‑frequency impedance and 1.55 A ripple capability help reduce output ripple in switching regulator stages.
• Industrial and instrumentation electronics — Wide operating temperature range (−40°C to 105°C) and 6000 h life at 105°C support stable operation in long‑life equipment.

Unique Advantages

• High ripple tolerance: Specified ripple currents at both low and high frequencies reduce the need for oversizing and support compact design.
• Low high‑frequency impedance: 105 mΩ at 20°C/100 kHz contributes to effective high‑frequency decoupling and reduced voltage ripple.
• Long thermal endurance: 6000 hours at 105°C provides predictable lifetime performance for sustained elevated‑temperature operation.
• Compact through‑hole form factor: φ8 × 20 mm radial can and 3.5 mm lead spacing enable dense board layouts while maintaining through‑hole reliability.
• RoHS compliant and production‑ready: Meets RoHS requirements and is available in mass production quantities with bulk or bag packaging options.

Why Choose UHV1V391MPD?

The UHV1V391MPD delivers a practical balance of capacitance, voltage rating and ripple handling in a compact radial can optimized for applications that require low high‑frequency impedance and reliable thermal endurance. Its specification set—390 µF at 35 V, 1.55 A high‑frequency ripple capability, 105 mΩ impedance, and 6000 hours endurance at 105°C—makes it well suited to designers of general‑purpose power electronics and systems that demand stable filtering over temperature and time.

Manufactured as part of Nichicon’s UHV series and offered in production quantities with RoHS compliance, the UHV1V391MPD is a ready component choice for engineers seeking predictable, high‑ripple, low‑impedance electrolytic capacitance in a standard radial lead package.

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