UHD1E182MHD6

The UHD1E182MHD6 is a Nichicon UHD series radial-lead aluminum electrolytic capacitor specified at 1.8 mF (1800 µF) and 25 V with ±20% tolerance. It is part of the UHD "High Ripple Low Impedance" family and is designed for general-purpose electronic applications that require high ripple handling and reduced impedance at higher frequencies.

Key electrical characteristics include a low loss tangent (tanδ = 0.14 at 25 V, 120 Hz), rated ripple currents of 2.512 A (120 Hz) and 3.14 A (100 kHz), low leakage current (450 µA), and a 5000-hour life rating at 105°C. The part is RoHS compliant and supplied in a radial can package (φ16 × 20L) with 7.5 mm lead spacing for through-hole mounting.

Key Features

• Capacitance & Voltage: 1.8 mF (1800 µF) nominal capacitance at a rated voltage of 25 V with ±20% tolerance for general-purpose energy storage and smoothing.
• High Ripple Capability: Rated ripple current 2.512 A at 120 Hz and 3.14 A at 100 kHz, enabling effective handling of low- and high-frequency ripple components.
• Low Loss (tanδ): tanδ = 0.14 (25 V, 120 Hz, 20°C) to help minimize dissipation in AC ripple environments.
• Leakage Current: Low leakage current specified at 450 µA (after rated voltage), supporting stable bias conditions in DC circuits.
• Long Life at Elevated Temperature: Endurance rated 5000 hours at 105°C under rated voltage plus ripple current, with guaranteed limits on capacitance change, tanδ, and leakage current after test.
• Packaging & Mounting: Radial lead, aluminum can (φ16 × 20L) with 7.5 mm lead spacing for straightforward through-hole assembly; supplied in bulk for volume production.
• Operating Temperature Range: −40°C to +105°C to cover a wide range of ambient conditions.
• Regulatory Compliance: RoHS compliant as stated in the product information and series documentation.

Typical Applications

• Power supply ripple smoothing: Use in general-purpose power rails where high ripple currents and low impedance at higher frequencies are needed.
• Decoupling for power converters: Suitable for through-hole designs requiring bulk capacitance and ripple handling in converter output stages.
• General-purpose electronics: Applicable where long-term high-temperature endurance and stable leakage characteristics are required.

Unique Advantages

• High ripple handling capability: Explicit ripple current ratings at both low (2.512 A at 120 Hz) and high frequency (3.14 A at 100 kHz) make it practical for circuits with mixed-frequency ripple content.
• Low dissipation (tanδ = 0.14): Reduced loss tangent limits heat generation under AC conditions, supporting thermal stability in dense designs.
• Compact radial can footprint: φ16 × 20L case with 7.5 mm lead spacing provides significant capacitance in a small through-hole package for legacy or serviceable boards.
• Robust high-temperature life: 5000 hours at 105°C endurance rating delivers predictable performance over extended elevated-temperature operation.
• Controlled leakage: Specified leakage current of 450 µA helps maintain predictable DC bias behavior in shelving and filter applications.
• RoHS compliant manufacturing: Conforms to RoHS requirements as stated in the product documentation.

Why Choose UHD1E182MHD6?

The UHD1E182MHD6 combines high-capacitance energy storage with explicit ripple-current capability and low dissipation to address general-purpose through-hole designs that demand stable performance over temperature and time. Its 5000-hour endurance at 105°C and controlled leakage make it suitable for engineers specifying long-life capacitors for power rails and smoothing tasks.

Manufactured by Nichicon as part of the UHD "High Ripple Low Impedance" series, this radial-lead aluminum electrolytic capacitor is a practical choice for production volumes requiring reliable, RoHS-compliant components in a compact can package.

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