Alpha and Omega Semiconductor Limited (AOS), a designer, developer and global supplier of a broad range of power semiconductors and power ICs, is expanding its recently launched fast turn-off switched 650V H-series IGBT family with a 1200V rating. The new AOK40B120H1 has been developed to address needs of industrial welding and high-frequency converters with 3-phase ac or high voltage dc input. The device offers excellent performance in high switching frequency applications, which can be a perfect fit for high voltage industrial welding machines.

The AOK40B120H1 has been designed with AOS’ patent pending AlphaIGBT technology platform and features industry-leading fast turn-off as well as low V_CE(SAT) of 1.8V, which reduces power losses incurred during conduction and switching. Also, the 1200V minimum BV_CES rating and high latch-up ruggedness enable a larger safety application design.

“The AOK40B120H1 comprehensively addresses the needs of 1200V discrete IGBT-based welding system designers. High performance such as low V_CE(SAT) and low loss of turn-off switching behaviors ensure reliable and highly efficient operation, allowing designers to take advantage of cost effectiveness,” said Dr. Brian Suh, Vice President of IGBT product line at AOS. “AOS IGBTs are uniquely positioned to address customer pain points with innovative technology and solutions.”

1200V H1-Series Highlights

• 1200V IGBTs with soft and fast freewheeling diode
• Fast turn-off switching performance
• Low Vce(sat)

AOK40B120H1 Technical Specs

• V_CE = 1200V
• I_C = 40A
• V_{CE(SAT )}= 1.8V@T_J = 25°C
• E_OFF = 1.24mJ@T_J = 25°C
• T_J(max) = 175°C

AOK40B120H1 General Description:

• Latest AlphaIGBT (α IGBT) technology
• 1200V breakdown voltage
• Very fast and soft recovery freewheeling diode
• High efficient turn-on di/dt controllability
• Very high switching speed
• Low turn-off switching loss and softness
• Very good EMI behavior

AOK40B120H1 Applications:

• Welding Machines
• UPS & Solar Inverters
• Very High Switching Frequency Applications

Pricing and Availability

The AOK40B120H1 is immediately available in production quantities with a lead-time of 12-14 weeks.  The unit price for 10,000 pieces is $3.00