STD2NK70Z-STD2NK70Z-1 is a N-channel 700V - 6 ohm - 1.6A DPAK/IPAK Zener-Protected SuperMESH™ MOSFET.
The STD2NK70Z is a 700 V N‑channel MOSFET offered in DPAK and IPAK packages. It features a low on‑resistance, high dv/dt capability, and built‑in gate‑source Zener diodes for enhanced ESD protection. The device is suited for high‑voltage applications such as SMPS, welding equipment, flyback converters, and battery chargers.
The document includes absolute maximum ratings, thermal characteristics, avalanche specifications, electrical characteristics, and mechanical dimensions. It also provides typical performance curves, safe operating area diagrams, and test circuit schematics for switching and inductive load testing.
| Drain‑source voltage (Vds) | 700 V |
|---|---|
| Continuous drain current (Id) at 25 °C | 1.6 A |
| Pulsed drain current (Id,pulse) | 6.4 A |
| On‑resistance (Rds(on)) | 72 mΩ |
| Maximum power dissipation | 45 W |
| Gate‑source Zener breakdown voltage | 30 V |
| Avalanche energy (Eas) | 110 mJ |
| Thermal resistance junction‑case (Rθjc) | 2.78 °C/W |
| Storage temperature range | -55 °C to 150 °C |
The device is rated for a maximum drain‑source voltage of 700 V.
It can conduct up to 1.6 A continuously at 25 °C.
The typical on‑resistance is 72 mΩ.
Yes, it has built‑in back‑to‑back gate‑source Zener diodes that improve ESD capability and protect against voltage transients.