UHW1K121MPD

The UHW1K121MPD is a miniature, radial‑lead aluminum electrolytic capacitor in Nichicon’s UHW series, designed for high ripple current and reliable long‑term operation. This polarized capacitor delivers 120 µF at a rated voltage of 80 V and is optimized for compact power applications that require robust filtering and energy storage.

Key characteristics include low impedance (470 mOhm), a wide operating temperature range of −40 °C to 105 °C, and an endurance rating of 12,000 hours at 105 °C. Available in a φ10 × 16 L can with 5 mm lead spacing and supplied in bulk or bag packing, the UHW1K121MPD is RoHS compliant for environmentally conscious designs.

Key Features

• Capacitance & Voltage – 120 µF rated capacitance with an 80 V rated voltage; capacitance tolerance is −20% to +20% at 20 °C, 120 Hz.
• High Ripple Current – Low‑frequency ripple current of 416 mA at 120 Hz and high‑frequency ripple current of 1.04 A at 10 kHz, enabling effective smoothing in power circuits.
• Low Impedance – Specified impedance of 470 mOhm supports improved performance at higher frequencies and reduced voltage ripple under load.
• Reliability & Endurance – Rated for 12,000 hours at 105 °C under rated DC bias plus rated ripple current, with specified limits for capacitance change, tan δ, and leakage current after endurance testing.
• Leakage & Loss – Leakage current specified at 96 µA and tan δ (loss tangent) of 0.09 measured at 20 °C, 120 Hz, for predictable power loss and standby behavior.
• Compact Radial Package – φ10 × 16 L aluminum can with 5 mm lead spacing (±0.5 mm) and radial lead mounting for through‑hole assembly in space‑constrained layouts.
• Environmental Compliance – RoHS compliant.

Typical Applications

• General Purpose Power Filtering – Smoothing and decoupling in DC power rails where 120 µF at 80 V and defined ripple handling improve voltage stability.
• DC‑DC Converter Output – Output filtering for compact converter modules where low impedance and high ripple current capability reduce output ripple.
• Industrial Control Electronics – Energy storage and noise suppression in control boards operating across −40 °C to 105 °C and requiring long endurance.
• Consumer and Instrumentation Power Supplies – Bulk reservoir and transient support in compact, through‑hole power supply designs requiring RoHS compliance.

Unique Advantages

• Designed for High Ripple Environments: Specified low‑ and high‑frequency ripple currents (416 mA at 120 Hz, 1.04 A at 10 kHz) reduce voltage fluctuations on power rails.
• Predictable Thermal Endurance: 12,000 hours rated life at 105 °C gives clear expectations for long‑term performance in elevated temperature applications.
• Compact Footprint: φ10 × 16 L radial can enables space‑efficient placement without sacrificing capacitance or ripple handling.
• Low Impedance for Better Performance: 470 mOhm impedance supports lower ESR-related losses and improved transient response.
• Consistent Electrical Characteristics: Tan δ of 0.09 (20 °C, 120 Hz) and a defined leakage current of 96 µA facilitate predictable design margins for power budgets.
• RoHS Compliant Supply Options: Available in bulk or bag packing to suit production handling while meeting environmental directives.

Why Choose UHW1K121MPD?

The UHW1K121MPD positions itself as a compact, high‑reliability electrolytic solution for designs that require measurable ripple handling, low impedance, and long endurance at elevated temperatures. Its combination of 120 µF capacitance, 80 V rating, and radial can packaging makes it suitable for engineers balancing space constraints with demanding power filtering requirements.

This part is ideal for OEMs and design teams building power supplies, converter outputs, and industrial electronic systems that need a clearly specified lifetime, thermal range, and electrical performance from a RoHS‑compliant aluminum electrolytic capacitor.

If you would like pricing, lead‑time, or availability for UHW1K121MPD, request a quote or submit an inquiry and our team will provide the details you need.