COMPONENT PACKAGES

TO-273AA Component Package

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Date Published:	April 29, 2019
Last Modified:	April 29, 2019

Overview

Name	TO-273AA (Transistor Outline 273AA, JEDEC)
Synonyms	Super TO-220 (International Rectifier)
Variants	n/a
Similar To	TO-220
Mounting	TH
Pin Count	3
Pitch	2.54mm (100mil)
Solderability	Easily soldered by hand
Thermal Resistance	\(T_{JC} = 0.7^{\circ}{\rm C}/W\) ^hello \(T_{JA} = 60^{\circ}{\rm C}/W\) (min. PCB footprint) ^hello \(T_{JA} = 35^{\circ}{\rm C}/W\) (1" sq. PCB footprint) ^hello
Land Area	n/a
Height	Approx. 20.5mm high when mounted vertically, with pins pushed into PCB until they hit the taper.
3D Models	n/a
Common Uses	MOSFETs

Comments

The TO-273AA (also known as the Super-220) can be considered a variant of the TO-220 which replaces the screw-mounted design of the TO-220 with a clip-mounted design. Because of the clip, this package can usually achieve lower junction-to-ambient thermal resistances, hence the “Super”. It is used by International Rectifier.