IXYS Corporation today announced the release of 1500V MOS-Gated Thyristors housed in its proprietary Surface Mount Power Device (SMPD) and high-voltage TO-247 packages. Capable of carrying current up to 32kA for a period of 1 microsecond, they are well suited for high-power pulse and capacitive discharge circuits. These devices can be switched on by a voltage applied to their gate terminals, making it easy for integration with other power devices in the system. Once triggered, within tens of nanoseconds they can conduct very high current. An anti-parallel protection diode integrated in the same package is also available.
The 1500V thyristors packaged in the IXYS SMPDs can be easily surface mounted on a printed circuit board using a standard pick-and-place and reflow soldering process. No costly screws, cables, bus-bars or hand soldered contacts are needed. Weighing only 8g and 5g, respectively, the SMPD and Mini-SMPD packages are much lighter than comparable conventional power modules, thereby enabling lower weight power systems for IXYS customers. Moreover, an electrically isolated tab is provided for heat sinking, and a ceramic isolation of 2.5kV is achieved with the direct copper bond (DCB) substrate technology. The DCB provides low thermal impedance and best in class power and temperature cycling capabilities.
Another packaging option includes high voltage versions of the international standard sizes TO-247, TO-247HV and TO-247PLUS-HV. These packages have an increased creepage distance between leads, making it possible to withstand higher voltages. The new 1500V MOS-Gated Thyristors are suitable for capacitive discharge applications, ignition circuits, and solid-state surge protection applications in a variety of aerospace, medical and industrial settings.
The MMIX1H60N150V1 with an integrated anti-parallel diode is available in the SMPD and the MMJX1H40N150 (without a diode) in the Mini-SMPD; the maximum surge current ratings are 32kA and 15.5kA, respectively. The IXHX40N150V1HV (with a diode) is built in the TO-247PLUS-HV and IXHH40N150HV in the TO-247HV; they both have the maximum surge current rating of 7.6kA.