Vishay Intertechnology, introduced four new 40 V TrenchFET Gen IV standard-level n-channel power MOSFETs in the 6.15 mm by 5.15 mm PowerPAK SO-8 single package. Optimized for the noisy environments of motor control circuits, the Vishay Siliconix SIR5402DP, SIR5404DP, SIR5406DP, and SIR5408DP combine a high minimum gate-source threshold voltage of greater than 2.5 V with Qgd / Qgs ratios of less than 1.
The high minimum gate-source threshold voltage of the devices released today prevents false MOSFET triggering induced by the gate in motor control circuits, while their optimized Qgd / Qgs ratios reduce gate-induced voltage fluctuations and the impact of gate noise. Both characteristics make the devices ideal for providing synchronous rectification and DC/DC conversion in BLDC motors, power tools, drones, and automation systems.
The meet the requirements of specific applications, the SIR5402DP, SIR5404DP, SIR5406DP, and SIR5408DP are available with a range of typical on-resistance values from 0.9 mΩ to 2.5 mΩ at 10 V, and gate charge values from 32.6 nC to 82 nC. The MOSFETs are 100 % RG– and UIS-tested, RoHS-compliant, and halogen-free.
Device Specification Table:
| Part # | SIR5402DP | SIR5404DP | SIR5406DP | SIR5408DP | |
| VDS | 40 | 40 | 40 | 40 | |
| VGS | ± 20 | ± 20 | ± 20 | ± 20 | |
| RDS(on) | @ 10 V (Typ.) | 0.9 mΩ | 1.55 mΩ | 1.9 mΩ | 2.5 mΩ |
| @ 10 V (Max.) | 1.2 mΩ | 1.85 mΩ | 2.5 mΩ | 3.2 mΩ | |
| Qg | 82 | 61.5 | 44 | 32.6 | |
| Qgs | 26 | 20 | 14 | 10.5 | |
| Qgd | 18 | 14.5 | 10.5 | 7.5 | |
| Qgd / Qgs ratio | 0.69 | 0.73 | 0.75 | 0.71 | |
| Vth(min) | 2.5 | 2.5 | 2.5 | 2.5 | |
| Package | PowerPAK SO-8 single | ||||
Samples and production quantities of the new standard-level MOSFETs are available now, with a lead time of 13 weeks.
Vishay manufactures one of the world’s largest portfolios of discrete semiconductors and passive electronic components that are essential to innovative designs in the automotive, industrial, computing, consumer, telecommunications, military, aerospace, and medical markets. Serving customers worldwide.
