The SuperMESH™ series is obtained through an
extreme optimization of ST’s well established stripbased PowerMESH™ layout. In addition to pushing
on-resistance significantly down,specialcareis taken to ensure a very good dv/dt capability for the
most dem anding applications. Such series complements ST ful l range of high voltage MOSFETs including revolutionary MDm es h™ products.
3
2
1
TO-220
I2SPAK
3
2
1
TO-247
D2PAK
INTERNAL SCHEMATIC DIAGRAM
3
2
1
3
1
APPLICATIONS
■ HIGH CURRENT, HIGH SPEED SWITCHING
■ IDEAL FOR OFF-LINE POWER SUPPLIES,
ADAPTORS AND PFC
ORDERING INFORMATION
SALES TYPEMARKINGPACKAGEPACKAGING
STB20NK50ZT4B20NK50Z
STB20NK50Z-SB20NK50Z
STP20NK50ZP20NK50ZTO-220TUBE
STW20NK50ZW20NK50ZTO-247TUBE
2
D
2
I
SPAK
PAK
TAPE & REEL
TUBE
1/13May 2004
STP20NK50Z - STB20NK50Z - ST W20N K 50Z - STB20NK50Z-S
Operating Junction Temperature
Storage Temperature
(BR)DSS,Tj
≤ T
JMAX.
-55 to 150°C
TO-220/D2PAKTO-247
Maximum Lead Temperature For Soldering Purpose300
°C
AVALANCHE CHARACTERISTICS
SymbolParameterMax ValueUnit
I
AR
E
AS
Avalanche Current, Repetitive or Not-Repetitive
(pulse width limited by T
max)
j
Single Pulse Avalanche Energy
(starting T
=25°C, ID=IAR,VDD=50V)
j
17A
850mJ
GATE-SOURCE ZENER DIODE
SymbolParameterTest ConditionsMin.Typ.Max.Unit
BV
GSO
Gate-Source Breakdown
Igs=± 1mA (Open Drain)30V
Voltage
PROTECTION FEATURES OF GATE-TO-SOURCE ZENER DIODES
The built-in back-to-back Zener diodes have specifically been designed to enhance not only the device’s
ESD capability, but also to make t hem s afely absorb pos sible voltage transients that may occasionally be
applied from gate to source. In this respect the Zener voltage is appropriate to achieve an efficient and
cost-effective intervention to prote ct the device’s integrity. These integrated Zener diodes thus avoid the
usage of external components.
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the
consequences of u se of suc h informat ion n or for any in fring ement of paten ts or oth er ri ghts of th ird part ies whic h may resul t from
its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of STMicroelectronics.
Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan -
Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States.
The ST logo is a registered trademark of STMicroelectronics
All other names are the property of their respective owners