UPW1H681MHD

The UPW1H681MHD is a radial lead aluminum electrolytic capacitor from Nichicon’s UPW series, designed for miniature, low-impedance, high-reliability applications. It provides 680 µF capacitance at 50 V in a compact φ12.5 × 25 mm can with 5.0 mm lead spacing.

Engineered for demanding environments, this part targets switching power supplies and automotive electronic systems where high ripple handling, extended endurance and wide temperature tolerance are required. Key value comes from its combination of low impedance, significant ripple-current capability and long life at elevated temperature.

Key Features

• Capacitance & Voltage — 680 µF rated capacitance with a 50 V rated voltage and tolerance of −20% to +20% for stable energy storage and decoupling.
• Low Impedance — Specified impedance of 100 mΩ supports lower voltage ripple and improved power delivery in high-frequency circuits.
• High Ripple Current Capability — Low-frequency ripple current of 1.38 A (120 Hz) and high-frequency ripple current of 1.84 A (10 kHz) to handle dynamic load conditions.
• Long Endurance — Rated for 7000 hours at 105 °C, enabling extended operation in elevated-temperature applications.
• Wide Temperature Range — Operates from −55 °C to +105 °C for robust performance across harsh thermal environments.
• Automotive-Grade Reliability — AEC-Q200 rated, suitable for automotive electronic system requirements where that qualification is needed.
• Compact Radial Can — φ12.5 × 25 mm can with 5.0 mm lead spacing (±0.5 mm) in a radial lead, pressure-relief vent construction for secure through-hole mounting.
• Packaging Options — Available in bulk (no terminal forming) or bag packing to support different assembly workflows.

Typical Applications

• Switching power supplies — Low impedance and high ripple-current capability make this capacitor suitable for smoothing and energy buffering in switching regulators.
• Automotive electronic systems — AEC-Q200 rating and 7000-hour endurance at 105 °C address reliability and lifetime needs in vehicle electronics.
• High-temperature power assemblies — Operation from −55 °C to +105 °C and long endurance support use in modules exposed to elevated ambient temperatures.

Unique Advantages

• Compact energy density — 680 µF in a φ12.5 × 25 mm can provides substantial capacitance in a small footprint for space-constrained designs.
• Improved ripple management — Defined ripple current ratings at both low and high frequencies (1.38 A @120 Hz; 1.84 A @10 kHz) help reduce voltage fluctuation under dynamic loads.
• Low ESR/impedance — 100 mΩ impedance contributes to lower heat generation and better transient response in power circuits.
• Designed for long-term reliability — 7000-hour life at 105 °C and leakage current specified for stable long-term operation.
• Automotive-grade qualification — AEC-Q200 rating supports deployment in automotive electronic applications that require that level of qualification.
• Through-hole robustness — Radial lead construction with pressure-relief vent and standard lead spacing simplifies mounting and replacement.

Why Choose UPW1H681MHD?

The UPW1H681MHD delivers a balanced combination of capacitance, low impedance and long-term endurance in a compact radial can package. With specific ripple-current ratings across frequency, a wide −55 °C to +105 °C operating range and 7000 hours life at 105 °C, it’s positioned for power-dense assemblies where reliability under thermal stress matters.

This part is suited to engineers and procurement teams building switching power supplies, automotive electronics and other high-reliability power modules that require measurable performance and proven endurance. Its AEC-Q200 rating and radial, pressure-relief can design provide a clear path for integration into systems with extended field life requirements.

Request a quote or submit an inquiry to receive pricing, availability and packaging options for UPW1H681MHD. Our team can provide lead-time information and support for your qualification and production needs.