22 µF, 20 V, 900 mOhm ESR — bulk decoupling for avionics rails
The TAJD226M020H: This combination suits it for bulk decoupling on 12 V or 5 V power distribution buses in satellite and avionics payloads, where the 20 V rating provides margin against rail transients without requiring a higher-voltage part.
In a satellite power conditioner that sees -55°C during eclipse and +125°C near the bus regulator, the capacitance and ESR remain within spec across the entire thermal cycle — no screening lot or extended temperature variant required. This is a standard tantalum case size; the PCB land pattern is well-established and shared with other D-case tantalum capacitors, so a layout change is not needed if this part is substituted for another D-case 22 µF device.