Bulk decoupling with low ESR in a 2917 footprint
The TPSE337K010R0040: That combination — high capacitance and low ESR in a 2917 (7343 Metric) case — makes it a strong candidate for bulk decoupling on power rails where ripple current capability and low impedance at switching frequencies matter. It belongs to the TPS series, a general-purpose molded tantalum line from KYOCERA AVX, with ±10% capacitance tolerance. The low ESR figure (40 mOhm) directly reduces I²R heating and ripple voltage on the rail, which is the primary reason to reach for this part over a standard tantalum with higher ESR.
Temperature range and deployment environment
Rated for operation from -55°C to +125°C, this capacitor covers the full industrial temperature range and extends into the under-hood automotive band. This wide operating envelope is a direct result of the molded tantalum construction — the hermetic-like seal and stable dielectric keep capacitance drift and leakage under control at the temperature extremes. This is a standard footprint for power-supply decoupling on dense PCB layouts — the low profile helps when clearance above the board is tight, such as in blade servers or portable instrumentation.