This capacitor is suited for engine control units, transmission sensors, and infotainment power rails where the ambient temperature can reach 125°C. Its 2000-hour lifetime at 125°C sets the endurance floor: in a 105°C under-hood environment, the capacitor's life extends well beyond the 2000-hour rating due to the Arrhenius acceleration. For a vehicle with a 10-year, 150,000-mile service life, this part covers the typical warranty period when derated properly.
1.5 µF, 25 V, 7.5 Ohm ESR — decoupling and filtering fit
At 1.5 µF and 25 V rated voltage, this capacitor provides bulk decoupling for 3.3 V and 5 V supply rails in automotive modules. For a typical 100 mA ripple, the self-heating is under 75 mW, well within the 1206 package's thermal budget. The capacitance change over temperature is typically +15% at -55°C and -10% at 125°C relative to the 25°C value, so the 1.5 µF nominal stays above 1.35 µF at the hot end — enough margin for most decoupling applications.
KYOCERA AVX continues to manufacture the TAJ series, so supply continuity is expected for the foreseeable future.