UPM1J391MHD

The UPM1J391MHD is a radial-lead aluminum electrolytic capacitor engineered for low impedance and long-term reliability. As a 390 µF, 63 V polarized can in the UPM series, it is designed for demanding power-conditioning roles in automotive and industrial electronics.

Key value comes from its combination of high ripple-handling capability, wide operating temperature range (−55 °C to 105 °C) and extended endurance (5,000 hours at 105 °C), supporting robust performance in high-stress environments.

Key Features

• Capacitance & Voltage — 390 µF rated capacitance at 63 V provides substantial bulk energy storage for power rail stabilization and decoupling.
• Low Impedance Performance — Rated impedance of 43 mΩ and tanδ of 0.08 (measured at 20 °C, 120 Hz) reduce voltage ripple and loss in high-current circuits.
• High Ripple Current Capability — Supports 756 mA at 120 Hz (low frequency) and 1.26 A at 200 kHz (high frequency), enabling effective smoothing under AC and switching loads.
• Long Endurance — Qualified for 5,000 hours at 105 °C, meeting the UPM series’ high-reliability life specification for extended service in elevated-temperature applications.
• Wide Temperature Range — Rated for operation from −55 °C to 105 °C to handle harsh thermal environments.
• Industry Qualification & Compliance — AEC‑Q200 rated and RoHS compliant, supporting use in regulated automotive and industrial designs.
• Compact Radial Package — φ12.5 × 30.5 mm can with 5 mm lead spacing (±0.5 mm) for through-hole assemblies and straightforward bulk/bag packing for production handling.
• Polarized Construction & Tolerance — Polarized aluminum electrolytic design with ±20% capacitance tolerance for predictable filtering and energy storage behavior.
• Leakage Current — Specified leakage current of 737.1 µA after rated-voltage application, enabling straightforward bias planning in power designs.

Typical Applications

• Automotive power electronics — Bulk smoothing and decoupling in vehicle power supplies and electronic control modules where AEC‑Q200 qualification and high-temperature life are required.
• DC–DC converters and regulators — Output filtering and energy buffering for converter stages that demand high ripple-current capability at both low and high frequency.
• Industrial power systems — Energy storage and ripple suppression in control cabinets and power distribution modules operating across −55 °C to 105 °C.

Unique Advantages

• Designed for elevated-temperature duty — 5,000‑hour endurance at 105 °C delivers predictable lifespan for applications with sustained thermal stress.
• High-frequency and low-frequency ripple handling — Dual ripple-current ratings (756 mA at 120 Hz and 1.26 A at 200 kHz) make the part suitable for both legacy and switching-power environments.
• Low loss and low impedance — 43 mΩ impedance and tanδ 0.08 help minimize dissipation and voltage fluctuation on power rails.
• Automotive-capable qualification — AEC‑Q200 rating supports inclusion in vehicle electronics where qualifying to automotive standards is required.
• Compact, board-friendly form factor — φ12.5 × 30.5 mm radial can with 5 mm lead spacing simplifies through-hole assembly and mechanical retention.
• Regulatory compliance — RoHS compliance supports use in products targeting current environmental directives.

Why Choose UPM1J391MHD?

UPM1J391MHD provides a balanced combination of capacitance, voltage rating and thermal endurance for designers needing reliable bulk energy storage and ripple suppression in harsh environments. Its low impedance, defined loss angle, and dual-frequency ripple ratings translate directly into improved power-rail stability in both switching and line-frequency conditions.

This part is well suited to engineers developing automotive and industrial power systems that require proven endurance, AEC‑Q200 qualification, and straightforward through-hole mounting. The UPM1J391MHD supports long-term system reliability while simplifying procurement and BOM selection with mass-production availability and bulk/bag packaging options.

If you’d like pricing, lead-time details or a formal quotation for UPM1J391MHD, request a quote or contact our sales team to discuss availability and volume options.