1N746A

Highly ubiquitous classic low-voltage silicon Zener voltage regulator diode housed in a standard DO-35 glass package, globally utilized to establish a precise 3.3V stable voltage clamp with a 500mW continuous power dissipation limit. Equivalents: Central Semiconductor 1N746A, ON Semi 1N746A, Fairchild 1N746A, NTE5006A. Real-Life Examples: Microcontroller 3.3V I/O protection overvoltage logic clamps, logic gate clean reference rails, switching power supply feedback loops, and automated alarm sensor diagnostics