UPHW6181MHD

The UPHW6181MHD is a miniature, high-reliability aluminum electrolytic capacitor in a radial‑lead can format. It provides 180 µF capacitance at a 420 V rating and is designed for high-voltage, high‑ripple applications.

Engineered for general purpose and ballast applications, this part combines elevated ripple current capability with a 2000‑hour load life at 105°C to deliver stable performance in compact power circuits.

Key Features

• Electrical characteristics — 180 µF nominal capacitance with ±20% tolerance; polarized aluminum electrolytic construction rated at 420 V.
• Loss and leakage — tanδ (DF) = 0.20 measured at 20°C, 120 Hz; specified leakage current 3,124 µA.
• High ripple handling — Low‑frequency ripple current 1.04 A (at 120 Hz); high‑frequency ripple current 1.56 A (at 10 kHz), supporting demanding ripple environments.
• Reliability and life — Load life/endurance of 2,000 hours at 105°C with defined post‑test limits for capacitance, tanδ and leakage current.
• Temperature range — Rated for operation from −40°C to 105°C.
• Package and mounting — Radial lead can, case size φ18 × 40 mm, lead spacing 7.5 mm with ±0.5 mm tolerance; available in bulk (no terminal forming) and bag packing.
• Compliance — RoHS compliant.

Typical Applications

• Ballast applications — Suited for use in ballast circuits where high voltage and sustained ripple handling are required.
• General purpose electronic power circuits — Provides bulk energy storage and ripple filtering in compact high‑voltage designs.
• Miniature high‑voltage designs — Small φ18 × 40 mm footprint supports space‑constrained boards that require a 420 V rated electrolytic capacitor.

Unique Advantages

• High-voltage rating: 420 V nominal rating enables use in higher-voltage sections of power and ballast systems without upsizing the capacitor.
• Robust ripple performance: Defined ripple currents at both low and high frequencies (1.04 A at 120 Hz, 1.56 A at 10 kHz) reduce stress on upstream circuitry and improve system stability.
• Compact, radial package: φ18 × 40 mm radial can with 7.5 mm lead spacing provides a small physical footprint while preserving through‑hole mounting simplicity.
• Extended high‑temperature life: 2,000 hours endurance at 105°C supports long‑term reliability in elevated ambient or high‑dissipation environments.
• Clear electrical limits: Specified tanδ and leakage current values measured at standard conditions (20°C, 120 Hz) allow predictable design margins.
• RoHS compliant: Meets environmental restrictions for applications requiring lead‑free materials.

Why Choose UPHW6181MHD?

UPHW6181MHD positions itself as a compact high‑voltage electrolytic solution for engineers who need reliable ripple handling and long life in constrained board space. Its 420 V rating, defined ripple current performance, and 2,000‑hour endurance at 105°C make it suitable for general purpose and ballast applications that demand predictable behavior under continuous DC bias and ripple stress.

This part is appropriate for designers and procurement teams specifying miniature, high‑voltage aluminum electrolytic capacitors where verified electrical parameters and RoHS compliance are required. Backed by Nichicon's UPH series specifications, the UPHW6181MHD delivers verifiable performance for robust power designs.

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