The TPSD226M025R0200: This is a molded tantalum capacitor from the TPS series, rated 22 µF at 25 V with a 200 mOhm ESR. The 200 mOhm ESR is the effective series resistance at 100 kHz typical for tantalum capacitors of this size. It sets the ripple current rating and the self-heating under AC load — for a 100 kHz switching regulator, the ripple current through this cap stays within the 1.2 A RMS typical limit for a D-case tantalum.
The operating temperature range spans -55 to 125 °C, which is the full military temperature band. No derating is required for the temperature alone — the voltage derating still applies per MIL-PRF-55365 guidelines.