Nichicon UBT Series Aluminum Electrolytic Capacitors Datasheet Overview
The Nichicon UBT Series Aluminum Electrolytic Capacitors datasheet provides detailed information on high-temperature, durable capacitors designed primarily for use in automotive electronics. These capacitors offer dependability with a life expectancy ranging from 2000 to 10000 hours at temperatures up to +125°C. The UBT Series capacitors comply with the RoHS directive, reinforcing their commitment to environmental standards.
Key Specifications
The datasheet outlines essential specifications and characteristics of the UBT Series including:
Temperature Range: Operating temperatures range from -40°C to +125°C, suitable for various voltage ranges.
Voltage and Capacitance: These capacitors are available in rated voltage ranges from 10V to 450V and capacitance ranges from 4.7μF to 4700μF, with a capacitance tolerance of ±20% at 120Hz, 20°C.
Leakage Current: The capacitors feature controlled leakage current levels that change with the capacitance value and voltage rating.
Dissipation Factor: The tangent of loss angle (tan δ) is specified for various voltage ratings at 120Hz, 20°C.
Impedance Ratio: The impedance ratio at low temperatures is detailed, demonstrating the capacitors’ stability under different voltage ratings.
Performance and Durability
Endurance and stability are highlighted as:
Capacitors exhibit a capacitance change and dissipation factor both within a specific percentage of initial values after thousands of hours at +125°C.
The shelf life is guaranteed post a no-load storage period at 125°C for 1000 hours followed by a stipulated voltage treatment.
Physical Configuration
Available in radial lead type, the capacitors are marked with white lettering on a blue sleeve. There are details provided on dimensions, including different case sizes and corresponding impedance in various configurations. Factors influencing the rated ripple current, such as frequency, are also provided.
Additional specifications involve the sleeve material—standard PET or optional polyolefin—and the product marking system that indicates the series name, rated voltage, rated capacitance, and capacitance tolerance. The datasheet also prompts users to consult further pages for information about the end seal configuration, formed or taped product specifications, and minimum order quantities.
Dimension and Ripple Current Tables
Tables listing detailed dimensions for various case sizes and the respective maximum impedance are presented alongside the rated ripple current values at 125°C and 100kHz. Another table communicates the frequency coefficient of the rated ripple current at multiple frequencies.
References:
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