Nichicon BT Series High Temperature Aluminum Electrolytic Capacitors

Category: Capacitors, Electronics, Nichicon America Corporation

Summary of Nichicon BT Series Electrolytic Capacitors Datasheet

The Nichicon BT series high-temperature aluminum electrolytic capacitors are designed for extensive use in automobile electronics, offering reliable operation with a lifespan of 5,000 hours at +125°C. These capacitors are essential for heavy-duty services that require high dependability.

Product Specifications

Temperature Range: The capacitors can operate efficiently at temperatures reaching +125°C for voltage ranges of 350-450V and +125°C (10-250V) at 450V.

Capacitance Range: These capacitors come in a wide range of capacitance from 1uF to 4700uF, with a capacitance tolerance of ±20% at 120Hz and 20°C.

Leakage Current: After a minute’s application of rated voltage, leakage current specifications ensure consistent performance, with defined maximum values based on the capacitance value (CV).

Dissipation Factor: Specifications provide maximum tolerances for dissipation factor at different rated voltages, ensuring efficient energy use at varying frequency measures.

Performance Characteristics

The datasheet indicates that these capacitors offer excellent stability at low temperatures. Under varying test conditions including D.C. bias voltage application and ripple current, the capacitors are tested for changes in capacitance and dissipation factor to confirm their endurance and reliability.

Endurance: After being left under no load at 25°C for 1000 hours, these capacitors meet the requirements for endurance characteristics detailed above.

Shelf Life: This aspect refers to the ability of the capacitors to maintain their characteristics after extended storage, ensuring long-term usability.

Physical Configuration

Marking: Each capacitor is marked with white color letters on a blue sleeve, providing clear and distinct identification.

Type Numbering System: An example provided explains the numbering system based on tolerance, capacitance, voltage, and series name.

The datasheet also specifies dimensions for each type, including the case size and rated ripple current, important for determining the appropriate capacitor size for specific applications. Detailed dimension tables and specifications related to formed or taped products can be found on other pages referenced at the end of the second page.

In conclusion, the BT series from Nichicon is engineered for robust application in high-temperature environments, and the datasheet outlines all critical specifications and performance details relevant to automotive or other demanding electronic uses.