UPW1V391MPD

The UPW1V391MPD is a radial-lead aluminum electrolytic capacitor in the Nichicon UPW series, offering a compact 10 mm diameter × 20 mm length can with 390 µF capacitance at 35 V. It is designed for applications that require high ripple handling, low impedance, and extended endurance in demanding temperature environments.

Key use cases include switching power supplies, DC/DC converters and other power-rail smoothing or decoupling roles where long life and stable performance over -55°C to 105°C are required. Notable value comes from its measured low impedance and specified ripple current capability combined with an AEC-Q200 rating for reliability-sensitive designs.

Key Features

• Capacitance & Voltage: 390 µF nominal capacitance with a rated voltage of 35 V and tolerance of −20% to +20%.
• Low Impedance: Impedance specified at 104 mΩ, enabling effective smoothing and decoupling on power rails.
• Ripple Performance: Low-frequency ripple current of 915 mA (120 Hz) and high-frequency ripple current of 1.22 A (10 kHz) for robust ripple handling in switching applications.
• Loss Characteristics: tanδ (DF) of 0.12 measured at 20°C, 120 Hz, supporting predictable dissipation behavior in AC/ripple environments.
• High Endurance: Rated life of 5000 hours at 105°C under DC bias plus rated ripple current for long-term reliability.
• Wide Operating Range: Operating temperature from −55°C to 105°C to cover harsh ambient conditions.
• Form Factor & Mounting: Radial lead can, size φ10 × 20 mm, lead spacing 5.0 mm (±0.5 mm) for through‑hole mounting and easy board placement.
• Packaging & Availability: Available in bulk (no terminal forming) or bag packing; status: mass production.
• Automotive-Grade Reliability: AEC-Q200 rating for designs that require industry-recognized reliability standards.

Typical Applications

• Switching Power Supplies: Acts as output smoothing and energy reservoir to reduce ripple and stabilize DC outputs in converters.
• DC/DC Converters: Provides bulk capacitance and ripple handling for point-of-load and intermediate bus converters.
• Automotive Electronics: Suitable for vehicle electronics and control modules where AEC-Q200 qualification and extended temperature range are required.
• Embedded Power Rails: Used for decoupling and transient suppression on microcontroller and power-management rails in compact systems.

Unique Advantages

• Compact High-Capacitance Footprint: 390 µF in a φ10 × 20 mm can saves PCB area while providing substantial energy storage for power circuits.
• Measured Low Impedance: 104 mΩ impedance improves voltage stability and reduces ripple on sensitive rails.
• High Ripple Capability: Specified ripple currents (915 mA at 120 Hz, 1.22 A at 10 kHz) enable effective use in switching and high-frequency applications.
• Long-Term Stability: 5000 hours endurance at 105°C supports extended lifetime in thermal-stressed designs.
• Automotive-Grade Reliability: AEC-Q200 rating provides confidence for reliability-focused and automotive applications.
• Through-Hole Convenience: Radial lead form with 5.0 mm lead spacing simplifies assembly and prototyping in through-hole designs.

Why Choose UPW1V391MPD?

UPW1V391MPD combines a compact mechanical profile with clearly specified electrical performance — 390 µF at 35 V, low impedance (104 mΩ), and strong ripple-handling capability — making it a practical choice for power-supply smoothing, decoupling and energy-storage roles in constrained layouts. Its 5000-hour endurance at 105°C and AEC-Q200 rating align the part with designs that demand sustained reliability under thermal and electrical stress.

This part is well suited to engineers and procurement teams designing switching power stages, board-level power conditioning, and automotive or industrial electronics where documented ripple performance, loss characteristics (tanδ = 0.12 at 20°C, 120 Hz) and a compact radial-lead package are required.

To request a quote or for pricing and availability information for UPW1V391MPD, please contact sales or submit a request through your preferred procurement channel and reference the part number UPW1V391MPD.