automotive grade SCR Thyristors

Automotive-grade Thyristors with 1200V blocking capability at 150°C junction temperature

AEC-Q101 SCR Thyristors provide control over inrush current for battery chargers and safely handle capacitor discharges

ST's 1200 V, automotive-grade SCR Thyristors, TN4050HP-12WY (40 A) and TN6050HP-12WY (60 A), offer optimized power losses dissipation and are AEC-Q101 qualified for EV on-board chargers from 3.7 to 22 kW. Thanks to their 600 A surge current capability and 200 A/μs turn-on reliability, they also fit battery management systems. Fully rated at 150 °C, the TN6050HP-12WY SCR offers 1 kV/μs immunity, 1400 V surge, ideal for handling capacitor discharges.

Key features

  • AEC-Q101 qualified
  • IT(RMS) = 40 A (TN4050HP-12WY) and 60 A (TN6050HP-12WY)
  • VDRM & VRRM = 1200 V
  • Smart Inrush Current Limitation with IEC 61000-3-3 compliance
  • High AC switching life expectancy compared to relay

Application examples

on board charger 3.7 to 11 kW EV on-board chargers
ev battery EV and PHEV battery management systems
charging station Charging stations
ups UPS Bypass relays

Recommended resources

steval-isf003v1

Cost-effective standalone board designed to demonstrate efficient trade-offs regarding inrush-current limitation without inrush-current resistors and standby losses in line with European directive IEC 61000-3-3

The high-temperature silicon-controlled rectifiers (SCR) are the best answer for AC DC powerline switching solutions

pdf high temperature scr thyristors industrial
steval-isf003v1

Controlled by an STM32F334 MCU specifically designed for digital power conversion applications, this reference design offers high performance in terms of efficiency, THD, power factor and reliability by controlling the inrush current at startup.

Innovative boost topology based on SiC MOSFETs and SCR thyristors for a compact converter with high efficiency and low THD distortion

pdf bridgeless totem pole pfc
pdf how to implement a scr or a triac in a hybride relay application stmicroelectronics

This document gives some key information about the design of the solid-state silicon AC switch stage of a hybrid relay, which can drive resistive, capacitive or inductive AC loads, such as: heater resistors, motors for industry, power tools or appliance applications.

This document provides guidelines on how to select the right thyristor, or "SCR", according to various applications. It includes information about very specific cases that may require a higher level of expertise to ensure reliable and efficient operation.

pdf select the right thyristor
pdf inrushcurrent limiter circuits icl with triacs and thyristors

This document lists the different topologies which can be implemented using SCRs (silicon-controlled rectifier) or Triacs to implement an inrush-current limitation (ICL) circuit. It includes design tips with a particular focus on a controlled bridge solution.