The TPSV476K035R0200 is a 47 µF tantalum capacitor rated at 35 V with a maximum equivalent series resistance of 200 mOhm. The 200 mOhm ESR is the key parameter for bulk decoupling and output filtering in DC-DC converter circuits — it sets the ripple current capability and the voltage ripple magnitude at the switching frequency. The ±10% tolerance is standard for tantalum capacitors and means the actual capacitance will fall between 42.3 µF and 51.7 µF at 25°C and rated voltage. This is tight enough for most filtering and timing applications, though a ±20% part would be cheaper if the BOM can tolerate wider spread.
Package, temperature range, and physical integration
The molded construction provides mechanical protection and consistent standoff height for reflow soldering. The 2924 footprint is a standard large-case tantalum size — the PCB land pattern should match the manufacturer's recommended pad geometry for proper solder fillet formation and to avoid tombstoning during reflow. The capacitance and ESR will shift with temperature — expect capacitance to drop by about 10-15% at -55°C and ESR to increase by roughly 2x at low temperature. At 125°C, the voltage derating should be more conservative (60% of rated voltage or lower) to maintain reliability.
