Some repacks provide a raw database file (e.g., UsrComp.ms14 ). This method replaces your entire user library. This will overwrite any custom components you have previously created. Close NI Multisim completely.

Think of it like defragmenting a hard drive — but for your component database.

Most repacks are distributed as .prz (packed database) files or direct .prg database files. Navigate to Tools > Database > Merge Databases . Set the Source Database to the downloaded repack file. Set the Target Database to your User Database . Click Start to merge the components. If using raw .prg files: Close Multisim completely.

MPU6050 (accelerometer/gyroscope), HC-SR04 (ultrasonic distance).

Documentation

Place your new component in a simple test circuit: for a MOSFET, this might be a basic switching test with a resistive load and a pulse generator. Run a transient simulation and compare the output waveform against the datasheet's typical characteristics.

Before repacking, you must understand what you are repacking. Multisim uses a tiered database system:

Update your backup file every time you successfully add a large batch of working components to your system.