UPW1A331MPD

The UPW1A331MPD is a miniature, high-reliability aluminum electrolytic capacitor from Nichicon’s UPW series. It is a radial-lead, polarized device specified at 330 µF and 10 V designed for compact power applications.

Engineered for low impedance and robust ripple handling in a small footprint, this part suits switching power supplies and automotive electronic modules where high ripple current, wide temperature range, and proven endurance at elevated temperature are required.

Key Features

• Capacitance & Voltage — 330 µF nominal capacitance at a rated voltage of 10 V with a tolerance of −20% to +20%.
• Low Impedance — Specified impedance of 234 mΩ for improved transient performance in power rails.
• High Ripple Current Capability — Low-frequency ripple current 360.8 mA at 120 Hz and high-frequency rating 555 mA at 10 kHz to support switching converters and high-frequency decoupling.
• Temperature Range & Endurance — Operates from −55°C to +105°C with a rated lifetime of 3000 hours at 105°C.
• Loss Tangent & Leakage — tanδ = 0.19 (measured at 20°C, 120 Hz) and leakage current specified at 99 µA.
• Package & Mounting — Radial lead can (φ8 × 11.5 mm) with 3.5 mm lead spacing (±0.5 mm); available in bulk (no terminal forming) or bag packing.
• AEC‑Q200 Qualified — AEC‑Q200 rating for applications requiring automotive-grade component qualification.

Typical Applications

• Switching Power Supplies — Bulk and output filtering for switching regulators where low impedance and high ripple handling reduce ripple voltage and improve regulation.
• Automotive Electronics — Suitable for automotive modules that require AEC‑Q200 qualification, wide temperature operation, and endurance at elevated temperatures.
• Compact Power Modules — Board-level decoupling and energy storage in space-constrained designs thanks to the φ8 × 11.5 mm miniature can and radial-lead form factor.

Unique Advantages

• Compact high-energy decoupling: 330 µF in a φ8 × 11.5 mm can provides significant capacitance where PCB space is limited.
• Improved power-stage stability: Low impedance (234 mΩ) and measured tanδ support stable filtering and fast transient response in power rails.
• High-frequency ripple resilience: 555 mA ripple rating at 10 kHz addresses high-speed switching environments and reduces heating under HF load.
• Automotive-capable reliability: AEC‑Q200 qualification and 3000 hours at 105°C endurance make this part suitable for demanding temperature and longevity requirements.
• Through-hole robustness: Radial lead package with defined 3.5 mm spacing provides reliable mechanical retention and straightforward assembly for prototypes and production boards.
• Predictable leakage and loss: Specified leakage current (99 µA) and tanδ (0.19 at 20°C, 120 Hz) enable predictable power-loss budgeting in designs.

Why Choose UPW1A331MPD?

The UPW1A331MPD balances a small footprint with strong electrical performance: substantial capacitance, low impedance, and high ripple-current capability are combined with an automotive-grade reliability rating. It is well suited to engineers designing compact switching power supplies, automotive control modules, and other power-dense applications that demand endurance at elevated temperature.

Backed by Nichicon’s UPW series and offered in mass-production quantities, this radial-lead capacitor provides a dependable option for designs requiring repeatable electrical characteristics, robust mounting, and clear, verifiable specifications.

Request a quote for UPW1A331MPD to discuss pricing, availability, and lead times for your production requirements.