UHW0J392MHD

The UHW0J392MHD is a Nichicon UHW-series miniature aluminum electrolytic capacitor in a radial-lead can. It delivers 3,900 µF (3.9 mF) capacitance at a 6.3 V rating with polarized radial-lead mounting and compact φ12.5 × 20 mm dimensions.

Designed for general-purpose electronics that require high ripple handling and long endurance, this capacitor combines low impedance, elevated ripple-current capability, and a wide operating temperature range for reliable performance in demanding environments.

Key Features

• Capacitance & Voltage — 3,900 µF nominal capacitance with a 6.3 V rated voltage and ±20% tolerance for bulk energy storage and decoupling.
• High Ripple-Current Capability — Low-frequency ripple current of 1.95 A (120 Hz) and high-frequency ripple current of 2.6 A (10 kHz) to support power-supply smoothing and transient loads.
• Low Impedance — Rated impedance of 51 mΩ for effective high-frequency performance and reduced voltage drop under load.
• Loss Characteristics — tan δ ≈ 0.25 measured at 20°C, 120 Hz, 6.3 V, providing predictable dissipation behavior in filter and smoothing applications.
• Long Endurance — Endurance rated to 10,000 hours at 105°C, supporting long-term reliability under elevated-temperature operation.
• Wide Temperature Range — Operating range from −40°C to +105°C for use across varied environmental conditions.
• Mechanical & Mounting — Radial-lead package with φ12.5 × 20 mm can size, 5 mm lead spacing (±0.5 mm), and polarized termination for through-hole assemblies.
• Leakage Current — Specified leakage current of 245.7 µA for predictable standby and bias current behavior.
• Compliance & Availability — RoHS compliant and listed as mass production with bulk or bag packing options (no terminal forming).

Typical Applications

• General-Purpose Electronics — Bulk energy storage and decoupling in general-purpose circuits where a 3.9 mF, 6.3 V capacitor is required.
• Power Supply Filtering — Smoothing and ripple suppression on low-voltage power rails, leveraging the 1.95 A (120 Hz) and 2.6 A (10 kHz) ripple-current capability.
• High-Frequency Decoupling — Low impedance and improved high-frequency characteristics make it suitable for decoupling and transient support in compact assemblies.

Unique Advantages

• High ripple-current handling: 1.95 A at 120 Hz and 2.6 A at 10 kHz reduce heating and extend service life in power-conditioning roles.
• Compact footprint: φ12.5 × 20 mm can provides 3,900 µF capacitance in a small radial-lead package to save board space.
• Long elevated-temperature endurance: Rated for 10,000 hours at 105°C for sustained reliability in hot operating environments.
• Predictable electrical loss: tan δ ≈ 0.25 at 20°C/120 Hz offers consistent dissipation characteristics for thermal and efficiency calculations.
• Low impedance: 51 mΩ impedance supports low-voltage drop and efficient transient response in power circuits.
• RoHS compliant and production-ready: Mass-production status with bulk/bag packing supports predictable sourcing and assembly workflows.

Why Choose UHW0J392MHD?

The UHW0J392MHD positions itself as a compact, high-reliability radial-lead electrolytic capacitor aimed at designs that need substantial capacitance, strong ripple-current capability, and long-term endurance at elevated temperatures. Measurable attributes—3,900 µF at 6.3 V, low impedance (51 mΩ), specified leakage current, and a 10,000-hour life at 105°C—make it suitable for engineers specifying reliable bulk storage and smoothing components for general-purpose electronics and power-supply subsystems.

Its small can size, radial-lead mounting, and RoHS compliance simplify integration into through-hole assemblies and production processes while providing the electrical performance needed for robust system behavior over time.

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