Here is the proper top-down pinout diagram for the INX (InnoSenT) IN518 radar motion sensor IC, with pin numbering and covering description.
Important note: IN518 is a QFN-32 package (5x5 mm). Pin 1 is indicated by a dot or chamfered edge on the top of the IC. inx in518 ic pinout diagram top
If you cannot source an IN518, understanding its pinout allows you to substitute it with compatible parts. The DO-35 package and pinout are standard for a wide range of diodes. Here is the proper top-down pinout diagram for
When substituting, always check the Peak Inverse Voltage (PIV) and Current rating. As long as the replacement diode has equal or higher ratings and fits the through-hole spacing (standard 0.1" to 0.3" spacing), the pinout remains identical (Band = Cathode). 1N4148: The most common small-signal switching diode
If the part is an IX518 (likely a MOSFET Driver or Gate Driver), it typically comes in a small surface-mount package. Identifying the "Top" view is critical for correct installation.
Before analyzing the pinout, it is crucial to correct the classification. The part number 1N518 follows the standard JEDEC (Joint Electron Device Engineering Council) naming convention for discrete semiconductor devices.
Therefore, the 1N518 is not an integrated circuit with multiple logic pins; it is a two-terminal device. Understanding this distinction simplifies the "pinout" process significantly, as we are looking for only two connections: the Anode and the Cathode.