Allegro PCB Design Tutorial


Footprints for Common Transistor


This page lists out common footprints of transistor. Each footprint is in the form of a zip file. The zip file contain a dra file and one or more than on .pad files. These footprints are in Allegro 16.3 version and you should be able to open them on any version later than 16.3.

TO-220 package


Here is a quick drawing of the TO-220 package. Complementry silicon power transistor.



Download the footprint here .

Here is a quick screen shot TO-220 in Allegro.


List of the part numbers using TO-220

1. D44H

SOT-23


Here is a quick drawing of the SOT-23 package. 0.8X0.9MM pad,pitch 0.95mm. General purpose transistor.



Download the footprint here .

Here is a quick screen shot SOT-23 in Allegro.


List of the part numbers using SOT-23

1. MMBT3906TIG

TO-263


Here is a quick drawing of the TO-263 package. N channel,10V,90Ohm,Surface mount power trench MOSFET.



Download the footprint here .

Here is a quick screen shot TO-263 in Allegro.


List of the part numbers using TO-263

1. FDB3632

RTR030N05


Here is a quick drawing of the RTR030N05,Package SOT346T,pitch 0.95mm,pad 52x32mils.



Download the footprint here .

Here is a quick screen shot SOT346T in Allegro.



List of the part numbers using TO-263

1. RTR030N05

CSD17306Q5A


Here is a quick drawing of the CS17306Q5A,Pitch 50mils,pad 195x178mils,5mmx6mm plastic body,ROHS Compliant.



Download the footprint here .

Here is a quick screen shot CSD17306Q5A in Allegro.


DMG1012T


Here is a quick drawing of the DMG1012T,200V,400mOHM,MOSFET,SOT523,pad 0.80x0.35mm



Download the footprint here .

Here is a quick screen shot DMG1012T in Allegro.