UTHW6181MND

The UTHW6181MND is a miniature, radial‑lead aluminum electrolytic capacitor from Nichicon's UTH high‑reliability series. It delivers 180 µF at a 420 V rated voltage in a compact φ18 × 40 mm can with 7.5 mm lead spacing.

Designed for general‑purpose high‑voltage applications, this part combines long endurance (5000 hours at 105°C) with measurable ripple handling and controlled loss characteristics, making it suitable for engineers specifying compact, high‑voltage energy storage and smoothing components.

Key Features

• Capacitance & Voltage — 180 µF rated capacitance at 420 V to support high‑voltage energy storage and smoothing needs.
• Long‑Life Endurance — Rated for 5000 hours at 105°C under DC bias plus rated ripple current, with specified limits for capacitance change, tan δ and leakage current after endurance testing.
• Loss Characteristics — Tan δ (loss tangent) max 0.20 measured at 20°C, 120 Hz, enabling predictable dissipation performance.
• Ripple Current Handling — Low‑frequency ripple current 1.04 A (120 Hz) and high‑frequency ripple current 1.664 A (10 kHz), with frequency coefficients defined for other frequencies.
• Operating Temperature Range — −40°C to +105°C for broad thermal applicability.
• Compact Radial Package — φ18 × 40 mm can, radial lead mounting, 7.5 mm lead spacing (±0.5 mm) for through‑hole assemblies; available in bulk or bag packing.
• Leakage Current — Specified leakage current of 3124 µA (per provided product data) for predictable stand‑by and quiescent behavior.
• Tolerance & Polarity — Capacitance tolerance −20% to +20%; polarized device for correct orientation in circuits.

Typical Applications

• General‑Purpose Power Electronics — Provides high‑voltage smoothing and energy storage where a 420 V rating and compact footprint are required.
• Industrial Power Supplies — Supports filtering and ripple suppression in high‑voltage supply rails within the specified temperature and endurance limits.
• High‑Voltage DC Link and Bus Stabilization — Acts as capacitor bulk storage in designs that require long life at elevated temperature and predictable leakage and loss performance.

Unique Advantages

• High‑Voltage Capability: 420 V rating allows use in elevated voltage rails without upsizing the capacitor footprint.
• Long Endurance: 5000 hours at 105°C under rated conditions gives designers a measurable lifetime parameter for reliability planning.
• Compact Footprint: φ18 × 40 mm radial can and 7.5 mm lead spacing deliver a small form factor for through‑hole assemblies where board space is constrained.
• Predictable Loss and Leakage: Specified tan δ (0.20 at 120 Hz, 20°C) and documented leakage current support thermal and standby power budgeting.
• Broad Thermal Range: −40°C to +105°C operation allows deployment across varied ambient conditions while retaining performance characteristics.
• Production Availability: Product status listed as mass production to support volume designs and procurement planning.

Why Choose UTHW6181MND?

UTHW6181MND is positioned for designs that need a compact, high‑voltage electrolytic capacitor with documented endurance and ripple performance. Its combination of 180 µF at 420 V, long life at elevated temperature, and defined loss and leakage figures makes it a practical choice for engineers balancing size, reliability and electrical performance.

This part is suitable for procurement and design teams specifying high‑voltage general‑purpose components where predictable lifetime, ripple handling and a small radial package are required. Mass‑production availability helps support consistent supply for production programs.

If you need pricing, availability or a formal quote for UTHW6181MND, request a quote or contact sales to discuss lead times and order quantities.