New Product Introduction

Infineon IAUT300N08S5N012

IAUT300N08S5N012 - 80V Automotive MOSFET ideal for Starter Generator, Battery Main Switch, DCDC and higher power 48V Auxiliaries

Infineon’s 80V and 100V MOSFETs perfectly support hardware engineers in the rapidly growing 48V Electronic Control Units (ECU) market. The MOSFET family is offered in different package types covering high power 48V applications like starter generator, DCDC and battery switches, medium power like 48V e-Turbo and e-climate compressors as well as lower power 48V auxiliaries.

The IAUT300N08S5N012 is an 80V Automotive MOSFET in 12 x 10 mm² TO-leadless (TOLL) package with an RDS(on) of 1.2mR. With its low resistance and the capability of parallel usage it is suiting the requirements for integrated (iSG) and belt driven starter generators (BSG). Next to this the IAUT300N08S5N012 is also targeting the high power 48V applications like Battery Main Switches (BMS), DCDC and 48V Auxiliaries.



  • Lowest RDS(on) MOSFETs down to 1.2mR (80V) and 1.5mR (100V) in 12 x 10 TOLL package
  • PIN- and function-compatible MOSFET for Al based insulated metal substrates (IMS) in package with gullwing leads available (IAUS300N08S5N012 in TOLG)
  • Low package resistance and minimized stray inductance
  • Variety of package and RDS(on) options for different application power requirements
  • Tightened VGS thresholds



  • High power and current density
  • Optimized switching behavior
  • Reduced conduction losses
  • Paralleling of MOSFETs



  • 48V Starter Generator
  • 48V Battery Main Switch (BMS)
  • 48V DCDC converter
  • 48V Auxiliaries



Competitive advantage

  • Open source host code on github
  • Turnkey solution for fast and easy system integration
  • Zero-touch provisioning – unique credentials preprogrammed per chip
  • Advanced asymmetric cryptography (ECC & RSA) in a single-chip solution
  • AES128-CCM encrypted communication between the host and the security controller
  • Fast and easy access to any cloud provider thanks to pre-personalized certificates



Parametrics IAUT300N08S5N012
ID (@25°C) max 300.0 A
Operating Temperature min / max -55.0 °C / 175.0 °C
Polarity N
QG (typ @10V) 178.0 nC
RDS (on) (@10V) max 1.2 mR
VDS max 80.0 V
VGS(th) min / max 2.2 V / 3.8 V
Package SSO8 (PG-HSOF-8)


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