UPW1H681MHD6

The UPW1H681MHD6 is a miniature, high-reliability aluminum electrolytic capacitor from Nichicon’s UPW series. It is a radial-lead, polarized capacitor specified at 680 µF and 50 V, designed for compact power applications that require robust ripple handling and long life at elevated temperatures.

Targeted use cases include switching power supplies, DC–DC power rails and automotive electronics where AEC‑Q200-rated components and sustained performance over extended operating periods are required. Key value comes from its combination of high ripple-current capability, low impedance and an 8,000-hour endurance rating at 105°C.

Key Features

• Capacitance & Voltage — 680 µF nominal capacitance at a rated voltage of 50 V with capacitance tolerance −20% to +20%.
• Low impedance — Specified impedance of 96 mΩ, supporting stable power-rail decoupling and transient response in compact designs.
• High ripple-current capability — Rated low-frequency ripple current of 1.38 A (120 Hz) and high-frequency ripple current of 1.84 A (10 kHz), enabling effective smoothing in switching converters.
• Dissipation factor (tan δ) — tan δ of 0.10 (measured at 20°C, 120 Hz), indicating controlled dielectric losses under normal operating conditions.
• Leakage current — Specified leakage current of 1,020 µA, supporting predictable bias current behavior after application of rated voltage.
• Extended endurance — Rated life of 8,000 hours at 105°C with defined limits on capacitance change, dissipation factor and leakage current.
• Temperature range — Operates from −55°C to +105°C for broad environmental tolerance.
• Mechanical & packaging — Compact radial can: φ16 × 20L with 7.5 mm lead spacing (±0.5 mm); available in bulk (no terminal forming) or bag packing.
• AEC‑Q200 rating — Listed with AEC‑Q200, supporting use in designs requiring automotive-grade qualification.

Typical Applications

• Switching power supplies — Bulk and output filtering where high ripple current handling and low impedance reduce voltage ripple on power rails.
• Automotive electronic modules — Power decoupling and smoothing in AEC‑Q200-rated systems operating across −55°C to +105°C.
• DC–DC converters and regulators — Provides capacitance and ripple handling for compact power modules and converters.
• Industrial power equipment — Energy storage and smoothing in industrial power supplies that require long-term stability at elevated temperature.

Unique Advantages

• High ripple tolerance: 1.38 A (120 Hz) and 1.84 A (10 kHz) ripple-current ratings help maintain low ripple in switching environments.
• Low impedance for stable rails: 96 mΩ impedance supports improved transient response and reduced voltage drop under load.
• Designed for high-temperature endurance: 8,000 hours at 105°C provides long-term stability for designs exposed to sustained heat.
• AEC‑Q200 qualification: Explicit AEC‑Q200 rating makes the part suitable for automotive-grade designs requiring that qualification.
• Compact radial package: φ16 × 20L can with 7.5 mm lead spacing offers a space-efficient solution for through-hole PCB layouts.
• Predictable loss and leakage: Specified tan δ (0.10 at 20°C/120 Hz) and defined leakage current allow accurate thermal and bias planning in designs.

Why Choose UPW1H681MHD6?

The UPW1H681MHD6 combines compact form factor with electrical and thermal robustness: a 680 µF, 50 V radial-lead capacitor that delivers low impedance, high ripple-current capability and an 8,000-hour life rating at 105°C. Its AEC‑Q200 listing and −55°C to +105°C operating range make it a fit for demanding power systems, including automotive and industrial applications where long-term stability matters.

This part is well suited to engineers designing switching power supplies, DC–DC converters and power modules that require predictable performance under elevated temperature and continuous ripple stress, while keeping PCB area and assembly straightforward with a radial-lead package.

Request a quote or submit an inquiry for UPW1H681MHD6 to discuss pricing, availability, lead times and packaging options (Bulk / Bag Packing).