DMN62D0LFB-7

The DMN62D0LFB-7 from Diodes Incorporated is a 60 V N-channel enhancement-mode MOSFET in the ultra-miniature X1-DFN1006-3 package, occupying only 0.6 mm² of board area with a 0.47 mm profile. This is one of the smallest MOSFET packages available, taking less than half the board space of SOT-723 and approximately one-third the space of SOT-23.

The 60 V drain-source voltage rating provides ample margin for 12 V, 24 V, and 48 V industrial and telecom applications. The 1.3 Ω maximum RDS(on) at VGS = 4 V is adequate for small-signal switching, load switching, and level translation where current does not exceed 320 mA. At VGS = 2.5 V, RDS(on) increases to 2.5 Ω maximum, still usable for lower-current 2.5 V logic-driven switches.

The ESD-protected gate eliminates the need for external gate protection, a practical benefit in high-volume consumer electronics manufacturing. The 0.45 nC typical gate charge enables fast switching with minimal drive power.

The X1-DFN1006-3 package uses bottom-side terminals (no leads), requiring controlled-accuracy PCB assembly. The package is MSL-1 rated (unlimited floor life), simplifying storage and handling. With RθJA of 258°C/W, the package limits continuous power dissipation to approximately 500 mW at 25°C ambient.

The DMN62D0LFB is part of Diodes’ next-generation MOSFET portfolio targeting space-constrained applications in smartphones, tablets, wearables, and IoT devices. The 60 V rating distinguishes it from typical small-signal MOSFETs (20-30 V), enabling use in higher-voltage industrial and telecom circuits.

**N-Channel Enhancement MOSFET:** The DMN62D0LFB is an N-channel enhancement-mode MOSFET. With VGS below the threshold (VGS(th) = 0.6-1.0 V), no channel forms and the device is off. When VGS exceeds VGS(th), an inversion layer forms under the gate oxide, creating a conductive channel between drain and source. The channel resistance (RDS(on)) decreases with increasing VGS.

**Trench MOSFET Structure:** The device uses trench gate technology where the gate electrode is formed in vertical trenches etched into the silicon. This maximizes channel width per unit area, achieving low RDS(on) in a small die. The 0.45 nC gate charge reflects the small gate area, enabling fast switching.

**ESD-Protected Gate:** Internal ESD protection structures (Zener clamp or back-to-back diodes) are integrated between gate and source. These structures shunt ESD energy away from the thin gate oxide during handling and assembly, allowing the device to survive ESD events without external protection components.

**DFN1006 Package Thermal Considerations:** The bottom-only terminals provide a low-inductance connection to the PCB, but the small die and lack of a thermal tab result in RθJA of 258°C/W. Thermal management relies on PCB copper pours under the drain terminal. For higher power applications, consider the larger X1-DFN1212-3 variant (DMN62D0LFD-7) with better thermal performance.