The TPSB686K006R0350: This is a 68 µF molded tantalum capacitor rated at 6.3 V with a 350 mOhm ESR — the ESR figure directly determines how much ripple current the part can handle before self-heating becomes a derating concern. In a 3.3 V rail application, the 6.3 V rating provides roughly 1.9× voltage margin, which is typical for tantalum derating guidelines (50% of rated voltage recommended for reliability). The ±10% tolerance means the actual capacitance at 25°C sits between 61.2 µF and 74.8 µF — enough margin for bulk decoupling but tight enough for timing circuits that rely on RC time constants.
Temperature grade – military range for harsh environments
The molded case construction (Type Molded) provides mechanical robustness and moisture resistance compared to conformal-coated tantalum chips.
Packaged in a 1411 (3528 Metric) / 1210 case size, size code B, with dimensions 3.50 mm x 2.80 mm and a seated height of 2.10 mm max.