STP7NA40STP7NA40FI is a fast power MOSFET produced by Dinghao Semiconductor. The typical RDS(on) is 0.82 ohms, the ±30V gate-source voltage rating, 100% avalanche tested, repetitive avalanche data at 100oC, low intrinsic capacitances, minimized gate charge, and reduced threshold voltage spread. Applications include high current, high speed switching, switch mode power supplies (SMPS), welding equipment and uninterruptible power supplies and motor drives.
The SGS‑Thomson STP7NA40 series are high‑voltage, fast‑switching power MOSFETs offered in TO‑220 and ISOWATT220 packages. They feature low on‑resistance, minimized gate charge, and robust avalanche capability for demanding applications such as SMPS, motor drives, and welding equipment.
The datasheet provides absolute maximum ratings, thermal characteristics, electrical parameters, and mechanical dimensions, along with test circuit diagrams for switching performance and avalanche testing.
| Drain‑source voltage (VDS) | 400 V |
|---|---|
| Gate‑source voltage (VGS) | +30 V |
| Avalanche current (repetitive) | 6.5 A |
The device is rated for a maximum drain‑source voltage of 400 V.
The gate‑source voltage rating is +30 V.