UPT2W121MRD

The UPT2W121MRD is an aluminum electrolytic capacitor in a compact radial-can package designed for general-purpose, high-voltage applications. It combines a 120 µF capacitance with a 450 V rating, making it suitable where compact, high-voltage energy storage and ripple handling are required.

Engineered for durability, the capacitor supports continuous operation from −40°C to +105°C with a specified lifetime of 5000 hours at 105°C, and is RoHS compliant for environmental compatibility.

Key Features

• High Voltage & Capacitance: 120 µF capacitance rated for 450 V, enabling use in high-voltage circuits where significant energy storage is required.
• High Ripple Current Capability: Rated ripple current of 770 mA at 120 Hz and 1.232 A at 10 kHz, supporting applications with significant AC ripple and switching noise.
• Compact Radial Can Package: Radial lead, can-style package with dimensions L: 4 cm × D: 2.2 cm and 10 mm lead spacing, allowing through-hole mounting in space-constrained boards.
• Wide Operating Temperature Range: Specified for −40°C to +105°C operation, suitable for elevated-temperature environments.
• Long-Life Endurance: Rated for 5000 hours at 105°C under D.C. bias plus rated ripple current; capacitance change remains within ±20% after the endurance test.
• Leakage and Loss Characteristics: Leakage current meets the datasheet limit of not more than 0.06CV + 10 µA after 2 minutes at 20°C; tangent of loss angle (tan δ) limits are provided per rated voltage.
• Polarized Design: Polarized aluminum electrolytic construction for conventional DC energy storage and filtering topologies.
• Regulatory Compliance: RoHS compliant (2011/65/EU, (EU)2015/863), supporting environmental and regulatory requirements.

Typical Applications

• Ballast Circuits: Suited for ballast applications requiring high ripple handling in a compact radial package.
• High‑Voltage Power Filtering: Used for smoothing and filtering in high-voltage DC circuits where 450 V rating and 120 µF capacitance are required.
• General‑Purpose High‑Voltage Designs: Applicable in a range of general-purpose high-voltage modules that need a reliable, long-life electrolytic capacitor.

Unique Advantages

• High ripple tolerance: Rated ripple currents of 770 mA (120 Hz) and 1.232 A (10 kHz) reduce thermal stress under AC-loaded conditions.
• Compact high-voltage package: 120 µF at 450 V in a small radial can (L: 4 × D: 2.2 cm) conserves board space while delivering needed voltage capability.
• Proven high-temperature endurance: 5000 hours at 105°C under rated conditions ensures stability of capacitance and leakage for extended operation at elevated temperatures.
• Measurable leakage and dissipation specs: Datasheet limits for leakage current (0.06CV + 10 µA) and tan δ provide clear criteria for circuit design and quality verification.
• Through-hole mounting simplicity: Radial lead format and standard lead spacing simplify assembly and replacement in traditional PCB layouts.
• RoHS compliance: Meets current lead‑free and restricted substances requirements for regulatory alignment.

Why Choose UPT2W121MRD?

UPT2W121MRD positions itself as a compact, high-voltage aluminum electrolytic capacitor that balances ripple capability, temperature endurance, and predictable electrical characteristics. Its 120 µF/450 V rating, combined with defined ripple current performance and a 5000-hour life at 105°C, make it suitable for designers who need reliable energy storage and filtering in high-voltage, space‑constrained assemblies.

This capacitor is a good fit for engineers and procurement teams specifying components for ballast circuits, high-voltage power filtering, and general-purpose high-voltage modules where long-term stability, measured leakage, and RoHS compliance are required.

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