MT15N100J500CT is the one automotive-grade part in Adom's Walsin MLCC set: a 0402 NP0 (C0G) capacitor, 10 pF ±5%, rated 50 VDC, from the MT series — Walsin's AEC-Q200-qualified line.^{p.1, p.2} The decode follows the MT ordering table (15 = 0402, N = NP0, 100 = 10 pF, J = ±5%, 500 = 50 VDC) and the product sits in the NP0 range grid at 0402 / 50 V.^{p.2, p.6}

Electrically it behaves like any good C0G: ±30 ppm/°C from −55 to +125 °C,^p.3 Q ≥ 400+20C below 30 pF — so ≥600 here — at 1 MHz,^{p.3, p.14} and insulation resistance of 10 GΩ or R×C ≥ 500 Ω·F.^p.14 What the MT prefix buys is the qualification record: 1,000 h operational life at 125 °C and 200% of rated voltage, 1,000 h unpowered storage at 150 °C, and 1,000 thermal cycles, all run to the AEC-Q200 test list.^{p.14, p.15, p.18}

Mechanically it is a standard 1.00 × 0.50 × 0.50 mm 0402, reflow-only,^p.3 shipped 10,000 to a 7-inch paper-tape reel at MSL 1.^{p.13, p.28}