What the 5 Ohm ESR means for your decoupling budget
The TPSR475M010R5000: The 5 Ohm ESR (Equivalent Series Resistance) is the key number for a BOM engineer: it sets the impedance floor at the self-resonant frequency and governs ripple current handling. Operating temperature spans -55°C to +125°C, covering the full industrial and military-temp range. The ±20% tolerance is standard for tantalum electrolytics; the actual capacitance at temperature and bias will shift within this band, so derate the voltage by 20% for reliable operation — a 10 V rated part should see no more than 8 V DC across the temperature range.
The molded construction and tape-and-reel packaging are standard for automated pick-and-place assembly. The manufacturer size code 'R' corresponds to the 0805 case dimensions (2.05 mm length, 1.30 mm width, 1.20 mm seated height).