In 2012 Hitachi introduced the RJK6024, a small-die super-junction low-capacitance DPak 600-volt MOSFET, and its datsheet plot showed Crss = 0.65pF at 100V. I badly wanted a bunch for making faster high-voltage amplifiers. But I could never get any in the US, not even a sample. Eventually when I learned that Hitachi Renesas had discontinued the part, I thought perhaps they had never really put it into production.
But recently, working on an improved HV amplifier for LIGO experiments, I decided to make one more attempt to get some. I posted a request for quote on Alibaba, and hey, somebody responded, only 38-cents each. This morning a roll arrived DHL from Hong Kong, and they're fine, not counterfeits. I immediately put one on my HP 4280A C-V mater. Its Crss measured 7.87pF at 10V, 1.76pF at 15V, and 0.78pF at 100 volts. Yes that's 0.1pF higher than the datasheet plot, but then maybe my lead- zeroing efforts were off by 0.1pF. Coss 31pF at 15V, 18.8pF at 30V and 10.5pF at 100V. Yessir, it's real.