Bulk decoupling for a 2.5 V rail — 100 µF, 200 mOhm ESR
The TPSB107K002R0200: This is a 100 µF molded tantalum capacitor rated at 2.5 V with a 200 mOhm equivalent series resistance. The ESR is the key number for a decoupling application: at 200 mOhm the self-heating from ripple current stays moderate, and the impedance at switching frequencies above 100 kHz is dominated by the ESL, not the capacitance. For a 2.5 V supply rail — common in DDR memory or low-voltage logic — this cap provides the bulk charge reservoir without the voltage derating headache of a ceramic that loses 80 % of its capacitance under bias.
Active production — no LTB deadline to track
No last-time-buy notice, no forced redesign window.
Military temp range — -55 to 125 °C
In an avionics LRU that sees -40 °C on the tarmac and 105 °C in the equipment bay after a desert taxi, the capacitance and ESR stay within the datasheet limits — no cold-start capacitance drop, no leakage runaway at the hot end.
Package and footprint — size B, 1411 / 1210
Housed in the size B case (3.50 mm x 2.80 mm, 2.10 mm seated height), the footprint matches the standard 1411 (3528 Metric) and 1210 land pattern. The molded body is compatible with reflow profiles typical for tantalum capacitors — no special bake-out required if the reel is unsealed within the MSL rating window.