UPJ1E392MHD

The UPJ1E392MHD is a high-reliability, miniature aluminum electrolytic capacitor in a radial-lead can designed for power filtering and energy-storage duties. It belongs to Nichicon’s UPJ series—characterized as a low-impedance type suitable for switching power supplies and general-purpose power applications.

This 3.9 mF, 25 V polarized capacitor delivers high ripple-current capability and extended endurance, making it appropriate for through-hole designs that require compact bulk capacitance and stable operation across a wide temperature range.

Key Features

• Capacitance and Voltage — 3.9 mF (3900 µF) rated at 25 V with capacitance tolerance of -20% to +20% for predictable bulk energy storage.
• Low Loss (tan δ) — tanδ = 0.18 measured at 20°C, 120 Hz, enabling efficient AC performance for filtering and decoupling.
• High Ripple Current Handling — Low-frequency ripple current 2.277 A at 120 Hz and high-frequency ripple current 2.53 A at 1 kHz to support demanding supply decoupling and smoothing tasks.
• Long Endurance — Rated life of 5000 hours at +105°C, supporting extended operation under elevated temperature and DC bias conditions.
• Wide Operating Temperature — Specified for -55°C to +105°C to cover a broad range of environmental conditions.
• Radial Lead Package — φ16 × 40 mm can with 7.5 mm lead spacing (±0.5 mm) for through-hole PCB mounting and straightforward assembly; available in bulk or bag packing.
• RoHS Compliant — Manufactured to meet RoHS requirements.

Typical Applications

• Switching Power Supplies — Low impedance and high ripple-current capability make this part suitable for output filtering and bulk energy storage in switching regulators.
• General Power Filtering — Use for decoupling and smoothing on DC rails where a compact, high-value electrolytic is required.
• Industrial Power Modules — Provides bulk capacitance and endurance for power modules that operate across wide temperature ranges.

Unique Advantages

• High Capacitance in a Compact Can — 3900 µF in a φ16 × 40 mm package delivers substantial bulk storage where board space is limited.
• Designed for High Ripple Environments — Specified ripple currents at both 120 Hz and 1 kHz reduce heating and help maintain performance under AC stress.
• Extended High‑Temperature Life — 5000 hours at +105°C supports longer maintenance intervals and predictable end-of-life behavior in elevated-temperature systems.
• Clear Electrical Characterization — Measured tanδ and leakage current figures enable precise thermal and reliability calculations during design.
• Through‑Hole Form Factor — Radial lead can and defined lead spacing simplify assembly for legacy or serviceable designs.
• RoHS Compliance — Conforms to lead-restriction requirements for regulated applications.

Why Choose UPJ1E392MHD?

UPJ1E392MHD combines high bulk capacitance, measurable low-loss characteristics, and robust ripple-current capability in a compact radial-lead package. Its 5000-hour endurance at +105°C and wide -55°C to +105°C operating window make it suitable for power designs that demand stability and predictable aging under continuous load.

This part is well suited for engineers specifying through-hole power filtering and energy-storage components in switching supplies, industrial power modules, and general-purpose electronic equipment where proven electrical data and long-term reliability are required.

If you need pricing, availability, or a formal quote for UPJ1E392MHD, please submit a request for a quote or contact sales for further assistance.