Sorry, I’ve been a bit scattered this week. I absolutely do want to discuss TVS diodes 
I’ve never worked with them, but over the last year I’ve read datasheets and app notes several times. It seems simple enough.
A bipolar TVS diode is probably our preferred device?
Reverse Stand-Off Voltage (VR): Reverse stand-off voltage is the maximum voltage that can be applied to the protector without actually activating the device. The device VR should be equal to, or higher than the peak operating voltage of the circuit being protected. This is to ensure that the protection device does not clip the normal circuit operating or signal voltage.
Breakdown Voltage (VBR): Breakdown voltage is the voltage at which the diode will begin to protect and conduct current. Generally, the VBR is specified at 1mA.
Clamping Voltage (VC): Clamping Voltage is the highest voltage that the protected circuit will be exposed to during the test waveform event. On most datasheets, the clamping voltage is given for a 1A or 2A waveform that has an 8µS rise time.
Peak Pulse Current (IPP): The peak pulse current is the maximum current the protection device can withstand.
Just looking at the first search result.
| Property | Value |
|---|---|
| Reverse Stand-Off Voltage (VR) | >5volts |
| Breakdown Voltage (VBR) | >5volts @ 1mA |
| Clamping Voltage (VC) | Assume this is related to technology, size, and price |
| Peak Pulse Current (IPP) | Assume this is also related to technology, size, and price |
Any favorite go-to devices? I’ll pull some datasheets to get a feel for VC and IPP.