Been doing some experimentation with TVS's and have found that they seem to be usable as a zener diode when their clamp voltage has been achieved but with a very low current.
Eg. If I have a TVS with a clamp voltage of 14V with a current flow of less than 1 mA, say from some circuitry that is acting as a constant current source, then it seems to be quite happy to be left on / clamping / (zenering?). Power dissipation is less than 5mW. The clamp / zener voltage doesn't have to be that accurate, just approximately 14V.
Can anyone see a problem with this?