UHW1V182MHD

The UHW1V182MHD is a radial-lead, miniature aluminum electrolytic capacitor in Nichicon’s UHW series. It delivers high ripple current capability and low impedance across a compact φ12.5 × 30.5 mm can, making it suitable for general-purpose power electronics applications.

Engineered for long-term reliability, the part is rated 35 V with 1800 µF capacitance, a -20% to +20% tolerance, and a rated lifetime of 10,000 hours at 105°C. It is RoHS compliant and available in bulk or bag packing.

Key Features

• Capacitance & Voltage — 1800 µF nominal capacitance at a rated voltage of 35 V with tolerance of −20% to +20%.
• High Ripple Current — Low-frequency ripple current of 2.277 A (120 Hz) and high-frequency ripple current of 3.795 A (10 kHz), enabling robust performance under AC loading.
• Low Impedance — Impedance specified at 36 mΩ, combined with the UHW series design for lower impedance in the high-frequency range.
• Long Endurance — Rated life of 10,000 hours at 105°C when operated under DC bias plus rated ripple current.
• Temperature Range — Operates from −40°C to +105°C, supporting a broad range of environmental conditions.
• Physical & Mounting — Compact radial can: diameter φ12.5 mm, length 30.5 mm, lead spacing 5.0 mm (±0.5 mm), radial lead mounting for through-hole designs.
• Electrical Quality — Tangent of loss angle (tan δ) of 0.11 measured at 20°C, 120 Hz, and leakage current specified at 630 µA.
• Compliance & Packaging — RoHS compliant and supplied in bulk (no terminal forming) or bag packing.

Typical Applications

• General-Purpose Power Electronics — Smoothing and energy storage in power supplies where higher ripple currents and low impedance are required.
• DC Filtering and Decoupling — Bulk decoupling for converters and regulators leveraging the component’s high ripple current rating and low impedance at frequency.
• Embedded & Industrial Electronics — Use in board-level power networks that demand long endurance at elevated temperatures up to 105°C.

Unique Advantages

• Compact high-capacitance package — 1800 µF in a φ12.5 × 30.5 mm can minimizes board area for bulk storage and smoothing.
• Designed for AC stress — Specified ripple currents at 120 Hz and 10 kHz provide quantifiable performance for both low- and high-frequency loading scenarios.
• Predictable thermal endurance — 10,000-hour life rating at 105°C simplifies lifetime planning for high-temperature applications.
• Low-loss operation — tan δ of 0.11 at 20°C/120 Hz supports efficient performance and lower self-heating under AC conditions.
• Through-hole reliability — Radial lead construction and defined lead spacing (5.0 mm ±0.5 mm) ease mechanical mounting and assembly in traditional PCB workflows.
• Regulatory compliance — RoHS status supports regulatory and environmental requirements for many designs.

Why Choose UHW1V182MHD?

UHW1V182MHD provides a combination of high capacitance, elevated ripple-handling capability, and compact form factor for designers who need reliable bulk energy storage and smoothing in constrained board space. Its 10,000-hour endurance at 105°C and low impedance characteristics make it well suited to sustained operation in power electronics and embedded systems.

This part is appropriate for engineers specifying radial-lead electrolytics for general-purpose power filtering, decoupling and energy storage where measurable ripple performance, thermal endurance, and RoHS compliance are required. The UHW series background underscores the product’s focus on miniature sizing and high ripple performance.

Request a quote or submit an inquiry to our sales team to discuss availability, lead times, and volume pricing for UHW1V182MHD.