UBR2W101MND

The UBR2W101MND from Nichicon is a miniature, high-voltage aluminum electrolytic capacitor in a radial can package, designed for long-life operation in demanding power applications. As part of the UBR series, it targets communication base station power supplies and general-purpose power-supply filtering and bulk-energy storage where high ripple capability, elevated temperature endurance and compact size are required.

Key value propositions include a 450 V rated voltage, 100 µF capacitance, high ripple-current capability, and a guaranteed load life of 5000 hours at 125°C—together delivering robust performance for high-voltage DC systems.

Key Features

• High Voltage & Capacitance: 450 V rated voltage with 100 µF nominal capacitance and ±20% tolerance, suitable for high-voltage DC smoothing and bulk storage.
• High Ripple Current: Rated ripple current of 780 mA at 120 Hz (125°C) with a measured 1.17 A at 100 kHz, supporting applications with significant AC ripple components.
• Long Life at Elevated Temperature: Load-life specification of 5000 hours at 125°C when operated under rated DC bias plus rated ripple current.
• Thermal Range: Operates from −40°C to +125°C, matching the endurance test conditions specified in the datasheet.
• Miniature Radial Can Package: Radial lead, can-style package with case dimensions φD × L = 18 × 31.5 mm (L: 3.15 cm × D: 1.8 cm) and 7.5 mm lead spacing for through-hole PCB mounting.
• Loss & Leakage Characteristics: Specified tangent of loss angle (tan δ) of 0.24 (120 Hz, 20°C) and leakage current conforming to I = 0.04CV + 100 µA after 1 minute at 20°C.
• Frequency-Dependent Ripple Performance: Frequency coefficient table in the datasheet shows rated ripple increases with frequency (coefficient up to 1.50 at 100 kHz or more), enabling optimized ripple handling across wide frequency ranges.
• Environmental Compliance: RoHS compliant (2011/65/EU, (EU)2015/863).
• Polarized Device: Polarized construction for DC filtering and energy-storage roles; observe correct polarity during assembly.

Typical Applications

• Communication Base Station Power Supplies: Bulk smoothing and ripple handling for high-voltage DC rails in radio and telecom power systems where elevated temperature endurance is required.
• General-Purpose Power Supplies: DC link filtering, bulk energy storage and decoupling in industrial and commercial power-supply designs that require a 450 V rating and reliable ripple performance.
• OEM High-Voltage DC Filtering: Through-hole radial mounting for equipment requiring serviceable, replaceable electrolytic bulk capacitors with long thermal life.

Unique Advantages

• High-Voltage Capability: 450 V rating enables use on elevated DC rails where lower-voltage capacitors cannot be applied.
• Designed for High Ripple Environments: Rated ripple current (780 mA at 120 Hz) and frequency coefficients up to 1.50 increase usable ripple margin across frequencies.
• Long Elevated-Temperature Endurance: 5000 hours at 125°C provides predictable aging and lifecycle behavior for designs exposed to high operating temperatures.
• Compact Radial Form Factor: 18 × 31.5 mm can with 7.5 mm lead spacing offers a space-efficient through-hole solution for power assemblies.
• Measured Electrical Characteristics: Specified tan δ and a defined leakage-current formula allow designers to predict AC loss and leakage for thermal and reliability calculations.
• Regulatory Compliance: RoHS conformity supports regulatory and sustainability requirements for electronic equipment.

Why Choose UBR2W101MND?

UBR2W101MND combines a 450 V rating, 100 µF capacitance and a compact radial can package with a datasheet-backed endurance of 5000 hours at 125°C—making it a practical choice for high-voltage DC smoothing and bulk-storage duties in communication and industrial power systems. Its specified ripple-current ratings and frequency coefficients help engineers size capacitors with confidence across AC and high-frequency ripple conditions.

Produced by Nichicon and specified with clear loss, leakage and thermal characteristics, this capacitor is well suited to designers seeking predictable long-term behavior in elevated-temperature environments and serviceable through-hole assemblies.

Request a quote or contact sales to discuss availability, lead times and quantity pricing for UBR2W101MND.