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STD20NF20
STF20NF20, STP20NF20
N-channel 200 V, 0.10 , 18 A DPAK, TO-220, TO-220FP
low gate charge STripFETTM Power MOSFET

Features
Type VDSS RDS(on) ID PW
STD20NF20 200 V < 0.125 18 A 110 W
STF20NF20 200 V < 0.125 18 A 30 W 2
3
2
3
1 1
STP20NF20 200 V < 0.125 18 A 110 W
TO-220FP TO-220
Exceptional dv/dt capability
Low gate charge
3
100% avalanche tested 1
DPAK
Application
Switching applications

Figure 1. Internal schematic diagram
Description
This Power MOSFET series realized with
STMicroelectronics unique STripFETTM process
has specifically been designed to minimize input
capacitance and gate charge. It is therefore
suitable as primary switch in advanced high-
efficiency isolated DC-DC converters.

Table 1. Device summary
Order codes Marking Package Packaging

STD20NF20 20NF20 DPAK Tape and reel
STF20NF20 20NF20 TO-220FP Tube
STP20NF20 20NF20 TO-220 Tube

December 2009 Doc ID 13154 Rev 4 1/15
www.st.com 15
Contents STD20NF20, STF20NF20, STP20NF20

Contents

1 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Electrical characteristics (curves) ............................ 6

3 Test circuits .............................................. 9

4 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

5 Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2/15 Doc ID 13154 Rev 4
STD20NF20, STF20NF20, STP20NF20 Electrical ratings

1 Electrical ratings

Table 2. Absolute maximum ratings
Value
Symbol Parameter Unit
TO-220, DPAK TO-220FP

VDS Drain-source voltage (VGS = 0) 200 V
VGS Gate- source voltage