RF switches - pin diodes

[Plasmateur]

I have a few questions about pin diode switches.

Part #1 - Functionality

Here are the three models I'm looking at, #1, #2, and #3.

#1 appears to be the fastest in switching time(4ns), but isn't advertised as such. I'm not sure why that is. Also I think this needs -10V to turn on, and I need it to turn on for a set amount of time with a square pulse. My square pulse is only 4V at peak,,, are there simple off-the-shelf devices which can convert a 4V peak pulse to -10V? Or are there less expensive devices than this old thing which can be used to control the timing of devices?

#2 has SMA connections on all ports, while #3 does not for the DC driving voltages. Is there such thing as a DC power supply with SMA or BNC outs? There are a few applications other than this where I would need just that. I'm not sure what the point is for #2 having SMA connections for the DC components...maybe ruggedness?



Part#2 - Prices

I've looked at several other vendors such as [urlhttps://www.fairviewmicrowave.com/standard-reliability-spdt-pin-diode-switches-category.aspx]here[/url] and and they are far more expensive for comparable frequency ranges - and the specs are less impressive for switching times of other vendors while I don't even see that spec for pasternack. What's up with that?