UPW1J390MED

The UPW1J390MED is a Nichicon UPW‑series aluminum electrolytic capacitor in a radial‑lead can package. It provides 39 µF capacitance at a 63 V rating in a miniature φ6.3 × 15 mm body with 2.5 mm lead spacing, optimized for space‑constrained power applications.

Designed for low impedance and high reliability, this polarized capacitor targets switching power supplies and automotive electronics where stable filtering, ripple handling and wide temperature operation (−55 °C to +105 °C) are required.

Key Features

• Capacitance & Voltage — 39 µF nominal capacitance with a 63 V rated voltage and ±20% tolerance at 120 Hz, 20 °C.
• Low loss (tan δ) — tan δ = 0.09 measured at 20 °C, 120 Hz, supporting lower dissipation in AC conditions.
• Ripple current capability — Rated low‑frequency ripple current 99 mA at 120 Hz and high‑frequency ripple current 330 mA at 10 kHz, suited for both line‑frequency and switching environments.
• Leakage current — Specified leakage current of 73.71 µA after application of rated voltage at 20 °C.
• Thermal and endurance — Operating range −55 °C to +105 °C with an endurance rating of 2000 hours at 105 °C.
• Package & mounting — Radial lead, polarized aluminum can; body size φ6.3 × 15 mm and lead spacing 2.5 mm (±0.5 mm). Packaging options: bulk (no terminal forming) or bag packing.
• AEC qualification — Specified with AEC‑Q200 rating for automotive reliability requirements.

Typical Applications

• Switching power supplies — Miniature, low‑impedance decoupling and output smoothing in compact SMPS designs.
• Automotive electronics — Use in automotive modules where AEC‑Q200 qualification and wide temperature operation are required.
• Space‑constrained power modules — Small φ6.3 × 15 mm footprint for compact assemblies that require radial‑lead components.

Unique Advantages

• Compact low‑impedance solution: The miniature φ6.3 × 15 mm can delivers 39 µF at 63 V while maintaining low loss (tan δ = 0.09), enabling tight power supply layouts.
• Frequency‑matched ripple performance: Specified ripple currents at 120 Hz and 10 kHz (99 mA and 330 mA) provide predictable behavior across both line‑ and switching‑frequency domains.
• Automotive reliability: AEC‑Q200 rating and a −55 °C to +105 °C operating range support deployment in temperature‑stressed automotive environments.
• Defined endurance: Rated for 2000 hours at 105 °C, allowing designers to account for long‑term lifetime in thermal budgets.
• Practical mounting and packaging: Radial lead form with 2.5 mm lead spacing and bulk/bag packing options simplify assembly and prototyping workflows.

Why Choose UPW1J390MED?

The UPW1J390MED offers a compact, low‑impedance aluminum electrolytic solution for engineers designing space‑limited power circuits that require stable filtering and predictable ripple handling. Its AEC‑Q200 rating, wide temperature range and defined endurance make it suitable for demanding applications where reliability and thermal performance matter.

This part is an appropriate choice for designers targeting switching power supplies and automotive electronics who need a small radial‑lead capacitor with documented ripple, leakage and loss characteristics from the Nichicon UPW series.

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