Rad-Hard Diodes and Rectifiers

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ST's hi-rel- and aerospace-diode portfolio includes Schottky (1N58xx, STPSx) and bipolar rectifiers (1N66xx, BYXxx). 

These devices offer very good performances within many applications and are available with a reverse voltage up to 200 V and a maximum forward current up to 40 A.

Housed in a variety of packages, including TO-254, SMD.5 and LCC2 (compatible with US D5-A/B), they have been qualified under the ESCC system.

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New Generation of Power Diodes for Space

With enhanced electrical performance, extended product range and guaranteed radiation hardness, ST's new generation of high-reliability Schottky diodes and rectifiers are ideal for the design of robust space solutions and other applications working in harsh environments. Housed in a variety of hermetic packages, these radiation-hardened devices are all qualified under the ESCC system.

The 150 V, 60 A STPS60A150C and 150V, 80A STPS80A150C Power Schottky diodes housed in an SMD.5 package are SEB (Single Effect Burnout) Schottky rectifiers immune up to 60 MeV.Cm2/mg. Their through-hole counterpart, the 150 V, 40 A STPS40A150CHR, available in a TO-254AA package, is now ESCC qualified with the April 2020 release of the ESCC QPL (Qualified Part List).

2 additional 45 V rad-hard power Schottky diodes have also just been ESCC qualified: The 45 V, 80 A STPS80A45CHR in an SMD.5 package and the 45 V, 40 A STPS40A45CHR in a TO-254AA package.

Three ESCC-qualified fast recovery rectifiers support the need for 200 and 400 V diodes: up to 40 A with the STTH40200CHR in a TO-254AA package and up to 60 A with the STTH60200CHR and STTH60400HR in SMD1 packages.

All these products feature the best-in-class forward voltage drop (VF) at 125°C, at nominal current and at up to 3 other forward currents (IF) per diode, making it possible to take full advantage of the low VF, regardless of the actual current in the application. All Power Schottky diodes have a guaranteed maximum dV/dt of 10 kV/µs.