UPW1H4R7MDD

The UPW1H4R7MDD is a miniature, radial-lead aluminum electrolytic capacitor in the Nichicon UPW series, offering 4.7 µF capacitance at a 50 V rating. Designed for low impedance and high reliability, this part targets switching power supplies and automotive electronic modules that require compact decoupling and filtering solutions.

With a wide operating temperature range and series-proven construction for power applications, the UPW1H4R7MDD provides predictable performance across temperature and frequency for engineers specifying compact, polarized capacitors.

Key Features

• Capacitance & Voltage — 4.7 µF nominal capacitance with a 50 V rated voltage, suitable for decoupling and filtering up to the rated voltage.
• Low Loss / Low Impedance — tanδ = 0.10 measured at 20°C, 120 Hz, supporting low-loss operation in power circuits.
• Ripple Current Capability — Supports 27 mA at 120 Hz (low frequency) and 90 mA at 10 kHz (high frequency), helping manage ripple in both low- and high-frequency power rails.
• Leakage Current — Specified leakage current of 7.05 µA, measured after rated voltage application conditions.
• Temperature & Endurance — Rated for −55°C to +105°C with a 2000-hour endurance rating at 105°C.
• Compact Radial Package — φ5 × 11 mm can with 2.0 mm lead spacing (±0.5 mm), radial lead mounting for through-hole assemblies and hand or wave insertion; available in bulk or bag packing.
• Automotive-Grade — AEC-Q200 rated for designs requiring automotive-level component qualification.
• Polarized Construction — Standard polarized aluminum electrolytic behavior for correct-oriented power applications.

Typical Applications

• Switching Power Supplies — Low-impedance design and compact size make this capacitor suitable for input/output filtering and decoupling in switching regulators.
• Automotive Electronic Modules — AEC-Q200 rating and wide temperature range support use in automotive control and electronics where space and reliability are constrained.
• High-Frequency Power Circuits — High-frequency ripple current rating (90 mA at 10 kHz) supports smoothing and stability in high-frequency DC-DC converter stages.

Unique Advantages

• Miniature footprint: φ5 × 11 mm can provides capacitance in a compact radial package for dense PCB layouts.
• Designed for low impedance: Series-level emphasis on low impedance translates to better ripple handling and reduced loss in power paths.
• AEC-Q200 qualification: Enables use in automotive and high-reliability projects that require recognized component screening.
• Wide temperature and proven endurance: −55°C to +105°C rating with 2000 hours at 105°C supports long-term stability in thermally demanding environments.
• Clear electrical limits: Specified tanδ, leakage current, and ripple current values allow precise design calculations and margining for power systems.
• Packaging options: Available in bulk (no terminal forming) or bag packing to suit assembly and inventory workflows.

Why Choose UPW1H4R7MDD?

The UPW1H4R7MDD combines a compact radial can with explicit electrical and environmental specifications—4.7 µF at 50 V, low tanδ, defined leakage current, and frequency-tested ripple ratings—making it a practical choice for engineers specifying decoupling and filtering components in space-constrained power designs. Its AEC-Q200 rating and 2000-hour endurance at 105°C position it for demanding applications where reliability over temperature matters.

This part suits designers of switching power supplies and automotive electronic modules who need a small, proven aluminum electrolytic capacitor with clear, verifiable performance metrics and straightforward packaging options for through-hole assembly.

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