45 mOhm ESR — bulk decoupling with ripple margin
The TPME107K020H0045: The 45 mOhm equivalent series resistance is the headline parameter for this TPM series molded tantalum — it directly sets the ripple current rating and the voltage ripple on the output rail. In a 20 V rated part at 100 µF, that ESR means the capacitor can handle several hundred mA of ripple current before self-heating becomes the derating constraint, making it a fit for bulk decoupling on POL converters and input filters where the ripple current is a known design variable.
The TPM series is a standard molded tantalum line, so production continuity is tied to the broader tantalum supply chain rather than a niche process.
2917 (7343 Metric) footprint — board layout constants
Package is 2917 (7343 Metric), size code E, with body dimensions 7.30 mm x 4.30 mm and seated height 4.30 mm max. The 45 mOhm ESR is specified at 100 kHz typical — the ripple current rating in the datasheet assumes the capacitor is soldered to a standard pad pattern with adequate thermal relief to the ground plane. Surface-mount reflow profile follows standard tantalum recommendations; no moisture sensitivity level is listed, so a standard bake-out before rework is the safe practice if the reel seal is broken.
Temperature range — full military band
At +125°C the voltage derating factor for tantalum capacitors is typically 50 % of rated voltage, so the 20 V rating should be applied at no more than 10 V at the high end of the range. The ESR increases with temperature; expect the 45 mOhm figure to double at -55°C, which affects ripple current capability in cold-start conditions.