7.5V 0.33F Super Capacitor for RTC and Memory, Reliable Backup Power and LongTerm Performance

Product: 7.5V 0.33F 26X9X16DA capacitor Overview A compact, reliability electrolytic capacitor designed for shortterm energy storage and backup power in lowvoltage electronic systems. Rated at 7.5 volts and 0.33 farads, with dimensions 26X9X16DA, this capacitor offers stable capacitance and controlled internal resistance across temperature, humidity, and vibration conditions. Key benefits Reliable backup energy for memory and real time clock retention during power interruptions. Compact footprint for spaceconstrained circuit boards and modules. Robust performance under temperature, humidity, and vibration stress, reducing maintenance and replacement frequency. Main specifications Rated voltage and capacitance: 7.5 volts, 0.33 farads. Size: 26X9X16DA. Moisture proof options available at 7.5V, 8.1V, and 9.0V. Operating temperature range: minus 40 degrees Celsius to 65 degrees Celsius. Humidity tolerance: specified up to 90 percent relative humidity for operating conditions. Performance characteristics Temperature characteristic at 25 degrees Celsius: capacitance change within plus or minus 30 percent of initial measured value; internal resistance within plus or minus 200 percent of initial measured value. temperature load (65 degrees Celsius, 90 percent relative humidity) after 1500 hours: capacitance change within plus or minus 30 percent of initial rated value; internal resistance within two times the initial specified value. Projected cycle life: tested from rated voltage down to half rated voltage at 25 degrees Celsius for 500,000 cycles; capacitance change within plus or minus 30 percent and internal resistance within two times initial specified value. Humidity test: 90 to 95 percent relative humidity at 40 plus or minus 2 degrees Celsius for 240 hours; capacitance change within plus or minus 30 percent and internal resistance within two times initial specified value. Vibration resistance: amplitude 1.5 millimeters, frequency 10 to 55 hertz, duration 6 hours; capacitance change within plus or minus 30 percent and internal resistance within two times initial specified value. Typical applications Real time clock and SRAM backup in embedded controllers, IoT devices, and industrial control boards. Shortterm power holdup for microcontroller resets, alarm systems, and POS terminals. Pulse energy supply and smoothing in lowvoltage sensor modules and portable electronics. Notes Available in multiple rated voltages for moistureproof variants. Check mechanical footprint and polarity when designing into PCBs.