Vishay SQS174ELNW 72 V MOSFET in PowerPAK® 1212-8SLW
Power MOSFET, N-channel, 72 V, 87 A, 0.0038 ohm, surface mount

Vishay Siliconix has introduced the first 72 V n-channel MOSFET in the PowerPAK® 1212-8SLW package: the SQS174ELNW. This AEC-Q101 qualified Automotive Grade device features 72 V TrenchFET® Gen IV technology to achieve a maximum RDS(ON) of 5.5 mΩ max and a typical RDS*Qg figure of merit (FOM) of 175 mΩ*nC. The 72 V derivative of TrenchFET Gen IV technology strikes an optimal balance between RDS(ON) improvement and drain-source breakdown voltage. The result of this tradeoff is a 22 % reduction in RDS(ON) compared to the 80 V series, while still offering sufficient voltage headroom for applications in 24 V, 36 V, and 48 V systems. The SQS174ELNW is compatible with logic-level gate driving operations and guarantees an RDS(ON) of 7.2 mΩ at a VGS of 4.5 V. Combing its improved RDS(ON) with low Qg, the MOSFET reduces power losses and enables higher efficiency for fast switching DC/DC converters. The PowerPAK 1212-8SLW package offers a compact 3.3 mm by 3.3 mm footprint, with an exposed drain pad on the bottom that promotes thermal transfer to the PCB. The package also features wettable flanks to enhance solder wetting and form more robust solder joints, which enable automatic optical inspection (AOI) to improve board-level reliability. The highly reliable SQS174ELNW offers a maximum junction temperature up to 175 °C, which leads to an extended lifetime compared to devices with lower temperature ratings.
Key features
- Low RDS(ON) reduces conduction loss
- RDS*Qg FOM is aimed at fast switching applications
- Increases power density
- Wettable flanks promote solder fillet formation and enable AOI to increase reliability
Applications
- DC/DC conversion
- 24 V and 36 V systems
- Battery charging
- Automotive 48 V power distribution
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