1. Find the datasheet for your component.

2. If the datasheet has a internal schematic for the part then enter this information into the schematic capture portion of Multisim.

3. Simulate the schematic you have just drawn to ensure that the part is working according to what you expect it to using the normal procedure for simulating circuits.

4. Once you are satisfied that everything is working according to what you want. Then remove all voltage sources, input sources and instruments used to simulate the circuit.

5. Goto PLACE>Connectors>HB/SC Connector and select. Place these connectors on the input, output and Power, and Ground nets. Label them as per the datasheet.

6. Once this is complete then be sure to save your work in case your need to edit something later.

7. Now goto TRANSFER>EXPORT NETLIST and click it. A dialog box will come up. Enter the filename that wish to save with. This will create a file called "yourfilemame.CIR"

8. Now you are ready to create your component. Go through the normal procedure of creating a component. Once you get to the point where it asks for a model for this component select "load from file" and browse to the .CIR file you just saved and load it.

9. Now comes the tricky part and this must be followed exactly or it will not work. Go into the model file window and at the very beginning add the line

".SUBCKT (modelname) (pin1) (pin2) ..."

The pin names are what you called the HB/SC connectors in the original schematic. Then at the very end of the model file windowplace the statement .ENDS.

10. Make sure the Pin Mapping table is correct and after that you should have a functioning component.

This works good for components with schematics in the datasheet that are clear and concise. Some datasheets only give the internal schematic in block diagram form and this is not well suited for this technique as you really have no idea on what is inside the block in most cases.

Also, most datasheets do not list the type of transistors, diodes or anything like that so you will just have to approximate the type to use based on the datasheet specifications.

Also, please note that there can be no interactive components in your original schematic. Multism does not allow these components to be used to create other components. These include LEDs, Switches, Relays, MCU components.