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Toshiba Develops 40V N-channel Power MOSFETs with Improved Thermal Performance

July 31, 2018

Toshiba Electronic Devices & Storage Corporation

- New packaging provides double-sided cooling for improved heat dissipation

DSOP Advance(WF)

TOKYO—In August, Toshiba Electronic Devices & Storage Corporation (“Toshiba”) will start mass production and shipments of “TPWR7904PB” and “TPW1R104PB”, 40V N-channel power MOSFETs for automotive applications. They are housed in the DSOP Advance(WF) packages that deliver double-sided cooling, low resistance, and small size.

The new products secure high heat dissipation and low On-resistance characteristics by mounting a U-MOS IX-H series chip, a MOSFET with the latest trench structure, into a DSOP Advance(WF) package. Heat generated by conduction loss is effectively dissipated, improving the flexibility of thermal design.

The U-MOS IX-H series also delivers lower switching noise than Toshiba’s previous U-MOS IV series, contributing to lower EMI[1]. The DSOP Advance(WF) package has a wettable flank terminal structure[2].


  • Electric power steering
  • Load switches
  • Electric pumps


  • Qualified for AEC-Q101, suitable for automotive applications
  • Double-sided cooling package with top plate[3] and drain
  • Improved AOI visibility due to wettable flank structure
  • U-MOS IX-H series featuring low On-resistance and low noise characteristics

Main Specifications


Part number
Absolute maximum ratings
Drain-source On-resistance
RDS(ON) max(mΩ)
Built-in Zener Diode between Gate-Source
Drain- source voltage VDSS
Drain current (DC) ID
@VGS= 10V
TPWR7904PB 40 150 1.3 0.79
DSOP Advance(WF)L
TPW1R104PB 120 1.96 1.14
DSOP Advance(WF)M


[1] EMI (Electromagnetic interference)

[2] Wettable flank terminal structure: A terminal structure that allows AOI (Automated Optical Inspection) of installation on boards.

[3] Be aware that the top plate has the same electric potential as the sources; however, not intended for an electrode.

Customer Inquiries:

Power Device Sales & Marketing Department

Tel: +81-3-3457-3933

Information in this document, including product prices and specifications, content of services and contact information, is current on the date of the announcement but is subject to change without prior notice.

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·Before creating and producing designs and using, customers must also refer to and comply with the latest versions of all relevant TOSHIBA information and the instructions for the application that Product will be used with or for.