STN3N40K3 ST Power MOSFET

The STN3N40K3 is an N-channel SuperMESH3 Power MOSFET from STMicroelectronics in SOT-223 surface-mount package, featuring 400V drain-source voltage and 1.8A continuous drain current . For selection, verify on-resistance of 3.4Ω maximum at VGS=10V with ID=0.6A, gate charge characteristics for low switching losses, excellent dv/dt capability, 100% avalanche tested, power dissipation rating, and operating junction temperature from -55°C to +150°C . Features include SuperMESH3 technology for improved on-resistance and dynamic performance, low gate charge for reduced drive requirements, and surface-mount SOT-223 package for automated assembly. Ideal for offline switching power supplies (SMPS) as auxiliary power or primary switch in flyback converters, power factor correction (PFC) circuits in medium-power applications, industrial control systems, LED lighting drivers, small motor control, and any application requiring 400V voltage rating with compact footprint and excellent switching performance . In stock at HL Electronics – request a quote for fast delivery.