UHW1K181MPD

The UHW1K181MPD is a miniature, high-reliability aluminum electrolytic capacitor from Nichicon’s UHW series. It is a radial-lead, polarized capacitor specified at 180 µF and 80 V, designed for general-purpose electronic use where compact size, high ripple capability and thermal endurance are required.

Key value propositions include low impedance at high frequency, a compact radial can (φ10×20L / L: 2 × D: 1 cm), and rated performance across –40 °C to 105 °C with long endurance at elevated temperature.

Key Features

• Capacitance & Voltage — 180 µF nominal capacitance with a rated voltage of 80 V and capacitance tolerance of −20% to +20%.
• Low Impedance & Loss — Specified impedance of 340 mΩ and tan δ of 0.09 (measured at 20 °C, 120 Hz, 80 V) for lower loss in high-frequency operation.
• High Ripple Current — Low-frequency ripple current 572 mA at 120 Hz and high-frequency ripple current 1.43 A at 10 kHz, supporting designs with significant AC ripple demands.
• Leakage Current — Leakage current specified at 144 µA for stable DC performance.
• Thermal Endurance — Operating temperature range −40 °C to 105 °C and endurance rated to 12,000 hours at 105 °C under rated bias and ripple conditions.
• Package & Mounting — Radial lead, can-style package with size φ10×20L, lead spacing 5 mm (lead spacing tolerance ±0.5 mm); available in bulk or bag packing (no terminal forming).
• Regulatory — RoHS compliant.

Typical Applications

• General-purpose electronics — Suitable where a polarized aluminum electrolytic capacitor is required for energy storage and decoupling in compact assemblies.
• High-ripple circuits — Designed for circuits that demand elevated ripple-handling capability, with specified ripple currents at 120 Hz and 10 kHz.
• Space-constrained designs — Miniature φ10×20L can and radial-lead mounting make it suitable for compact PCB layouts requiring through-hole components.
• High-temperature endurance applications — Long rated life (12,000 hours at 105 °C) for designs operating at elevated ambient temperatures.

Unique Advantages

• High ripple-current capability: Supports 572 mA (120 Hz) and 1.43 A (10 kHz), enabling reliable operation in circuits with substantial AC content.
• Compact radial-lead package: φ10×20L can with 5 mm lead spacing provides a small footprint while retaining through-hole mounting robustness.
• Low impedance and loss: 340 mΩ impedance and tan δ of 0.09 reduce voltage drop and heating in high-frequency conditions.
• Controlled leakage: Specified leakage current of 144 µA supports predictable DC behavior in power and timing circuits.
• Long-term thermal reliability: Rated for 12,000 hours at 105 °C, suitable for sustained elevated-temperature operation.
• RoHS compliant manufacturing: Conforms to RoHS requirements for environmental and materials compliance.

Why Choose UHW1K181MPD?

UHW1K181MPD combines a compact radial-can footprint with high ripple-current capability and low impedance, making it well suited for engineers seeking a reliable, space-efficient polarized capacitor for general-purpose electronic designs. Its extended endurance rating at 105 °C and controlled leakage make it a stable choice where thermal durability matters.

Manufactured by Nichicon as part of the UHW series, this capacitor targets designs that require predictable performance under ripple stress, compact through-hole mounting, and RoHS-compliant materials—providing a practical component choice for production designs and long-term deployments.

Request a quote or submit a procurement inquiry to receive pricing and availability details for UHW1K181MPD.