UPW1E331MPD

The UPW1E331MPD is a miniature, high-reliability aluminum electrolytic capacitor from Nichicon's UPW series, specified for radial-lead through-hole mounting. It delivers 330 µF at 25 V in a compact φ10 × 12.5 mm can with 5 mm lead spacing.

Designed for demanding power-electronics environments, the UPW1E331MPD targets switching power supplies and automotive electronic systems where low impedance, sustained ripple handling and long thermal endurance are required.

Key Features

• Electrical Performance — 330 µF nominal capacitance at a rated voltage of 25 V with ±20% tolerance and a measured dissipation factor (tan δ) of 0.14 (120 Hz, 20°C).
• Low Impedance — Specified impedance of 180 mΩ, supporting stable filtering and decoupling in compact power circuits.
• Ripple Current Capability — Low-frequency ripple current of 494 mA at 120 Hz and high-frequency ripple current of 760 mA at 10 kHz, suitable for pulsed and switching environments.
• High Thermal Endurance — Rated operating temperature range from −55°C to +105°C with a life specification of 5000 hours at 105°C.
• Reliability & Qualification — High-reliability UPW series construction and AEC-Q200 rating indicated in specifications for automotive-capable designs.
• Radial Through-Hole Package — φ10 × 12.5 mm can, radial lead format with 5.0 mm lead spacing (±0.5 mm) and available in bulk or bag packing (no terminal forming).
• Leakage and Stability — Specified leakage current 247.5 µA (measured condition provided) and endurance behavior aligned to UPW series reliability criteria.

Typical Applications

• Switching Power Supplies — Miniature, low-impedance output/filter capacitor for switching regulators and power modules where space is limited.
• Automotive Electronic Systems — Component-level use in automotive electronics, supported by the AEC-Q200 rating and operation up to 105°C for ECU and in-vehicle power circuits.
• Radial Through-Hole Assemblies — Through-hole board assemblies requiring a compact φ10 can, 5 mm lead spacing and reliable long-term operation at elevated temperatures.

Unique Advantages

• Compact, high-capacitance form factor — 330 µF in a φ10 × 12.5 mm can reduces board footprint while maintaining bulk capacitance for power smoothing.
• Demonstrated ripple handling — Specified ripple currents at both 120 Hz and 10 kHz provide clear performance expectations for low- and high-frequency switching environments.
• Thermal endurance for demanding environments — 5000-hour lifetime at 105°C supports extended operation in high-temperature applications.
• Automotive-capable qualification — AEC-Q200 listing in the product specifications supports use in automotive electronics designs requiring recognized component-level qualification.
• Through-hole robustness — Radial lead configuration with 5.0 mm lead spacing and defined lead spacing tolerance simplifies placement in traditional PCB assemblies.
• Clear electrical characterization — Published impedance (180 mΩ), tan δ, and leakage current values allow accurate modeling and BOM-level selection for power designs.

Why Choose UPW1E331MPD?

UPW1E331MPD combines a compact radial-can package with low impedance and defined ripple current capability, making it suitable for engineers designing switching power supplies and automotive electronic modules that require durable performance at elevated temperatures. Its AEC-Q200 status and 5000-hour endurance at 105°C provide specification-backed confidence for long-life applications.

Manufactured by Nichicon and drawn from the UPW series’ miniature, low-impedance platform, this capacitor is intended for designs where space, thermal endurance and predictable electrical behavior are key selection criteria.

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