SFC85N90S2 SiC Power MOSFET
Solid State Devices Inc
85 A, 900 V, 17 mΩ max hermetically sealed SiC N-channel power MOSFET with 100 kRad total dose tolerance. Radiation-tolerant drop-in replacement for silicon MOSFETs.
Technical specifications
- Drain-source voltage (Vdss)
- 900 V
- Continuous drain current (Id)
- 85 A
- On-resistance (Rds_on) typical
- 10 mΩ
- On-resistance (Rds_on) maximum
- 17 mΩ
- Power dissipation (Pd)
- 288 W
- Total dose radiation tolerance
- 100 kRad
- Channel polarity
- N-Channel Enhancement Mode
- Material
- Silicon Carbide (SiC)
- Package
- SMD2 (hermetically sealed)
- Screening
- TX, TXV, Space (S-level)
- Standards
- MIL-PRF-19500, MIL-STD-750, MIL-STD-883
- Certifications
- JANS (DLA), AS9100
- Flight heritage
- NASA Artemis programme (Orion spacecraft and SLS launch vehicle)
About
The SSDI SFC85N90S2 is an 85 A, 900 V Silicon Carbide (SiC) N-channel enhancement mode power MOSFET designed for high-reliability aerospace and space applications. With a typical on-resistance of 10 mΩ and maximum of 17 mΩ, it provides significantly lower conduction losses than equivalent silicon devices while offering superior high-temperature performance and radiation tolerance to 100 kRad total dose.
The device is hermetically sealed in SSDI’s SMD2 package (a recognised HiRel power package) and can serve as a high-performance drop-in replacement for traditional silicon MOSFETs at bus voltages as low as 28 V. SiC’s inherently higher voltage derating compared to silicon simplifies radiation hardness assurance (RHA) by pushing the operating point farther from the device’s breakdown. The device features fast switching with low capacitance, is easy to parallel, simple to drive, and inherently resistant to latch-up.
Screening levels available: TX, TXV, and S-level (space), in accordance with MIL-PRF-19500 and MIL-STD-750/883. SSDI’s JANS certification (DLA Land and Maritime) and AS9100 registration guarantee traceability and quality levels required by US DoD and NASA programmes. This device was selected for NASA Artemis programme satellites and launch vehicle applications.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.
