Part number : 972353SAA0 (97235-3SAA0)
Part name : TRANSISTOR-FIELD EFFECT
Application : Hyundai YF Sonata
Net weight : 0.096kg
Gross weight : 0.112kg

972353SAA0 TRANSISTOR-FIELD EFFECT

Made in Korea
Manufactured by Hanon System, as indicated in box.
About Hanon System, you can refer to my previous post : https://koreapartsinfo.com/2018/12/10/hanon-system/
Hanon System web site : http://www.hanonsystems.com

More closed photo graphs :

At the terminal there are 4 pins.

No logo of Hyundai/Kia, even HCC/HVCC/Hanon. Be noted.

I searched about function of “Field effect transistor”.

The field-effect transistor (FET) is an electronic device which uses an electric field to control the flow of current. This is achieved by the application of a voltage to the gate terminal, which in turn alters the conductivity between the drain and source terminals.

From : https://en.wikipedia.org/wiki/Field-effect_transistor

I’m not sure if above info is proper for this 97235-3SAA0. As the structure of part, it’s related with air conditioning system in car.