Many, many years ago, I confused zeners with 1N4148s…. had a bargain bag of surplus diodes and most of them were unmarked zeners, thought they were 1n4148 equivalents though… tried using them ...

Vishay’s take on the 1N4148 data sheet (PDF), describing it as a switching diode. ... Zener, and avalanche diodes, or even LEDs, instead they are simply a one-way valve for electrical current.

The small Trr makes this diode suitable for high current switchmode use, but even so, one of the limits to the operating frequency is how fast the diodes come out of conduction. Synchronously driven ...

Buffer with alternative protection architecture, again using 1N4148 diodes. ... This can be corrected by returning the protection diodes to dedicated shunt references, e.g. a pair of Zener diodes.

Two Zener diodes in series, anode to anode, would do the trick, but Zener diodes with V z = 0.8 V and a 2 W dissipation are not commercially available. I searched the web to find what was available.

According to Microsemi, its new family of ultra-sharp knee Zener diodes offers four times the voltage regulation and a 40-fold improvement in typical lower leakage current versus ...