0402N330J500CT is a 0402 NP0 (C0G) capacitor from Walsin's General Purpose series: 33 pF ±5%, rated 50 VDC, decoded straight from the ordering table and confirmed in the NP0 range grid.p.2, p.5 The ceramic is CaZrO3-based Class I material, so the value barely moves: within ±30 ppm/°C over the full −55 to +125 °C range.p.4, p.14, p.20
The numbers you design against: Q is ≥1,000 at 1 MHz / 1.0 Vrms,p.4, p.12 insulation resistance 10 GΩ or R×C ≥ 500 Ω·F,p.14 and a dielectric proofed at 250% of rated voltage.p.13 Life testing runs 1,000 h at 125 °C and 200% of rated voltage with capacitance held within ±3% or 0.3 pF.p.18 It ships 10,000 to a 7-inch paper-tape reel and is MSL 1.p.11, p.20
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21md5 0306337c43c3c7f2f7e91a237efddd14