November 2016

DocID029957 Rev 2

1/13

This is information on a product in full production.

www.st.com

STF4N90K5

N-

channel 900 V, 1.90 Ω typ., 4 A MDmesh™ K5

Power MOSFET in a TO-220FP package

Datasheet - production data

Figure 1: Internal schematic diagram

Features

Order code

STF4N90K5

900 V

2.10 Ω

4 A





Industry’s best FoM (figure of merit)



Ultra-low gate charge



100% avalanche tested



Zener-protected

Applications



Switching applications

Description

This very high voltage N-channel Power

MOSFET is designed using MDmesh™ K5

technology based on an innovative proprietary

vertical structure. The result is a dramatic

reduction in on-resistance and ultra-low gate

charge for applications requiring superior power

density and high efficiency.

Table 1: Device summary

Order code

Marking

Package

Packing

STF4N90K5

4N90K5

TO-220FP

Tube

TO-220FP

AM15572v1_no_tab

D(2)

G(1)

S(3)