80V symmetric dual n-channel mosfet in 3 x 3mm

New Yorker Electronics is aiming at displacing PowerPAK 1212 packaged mosfets by stocking a pair of symmetric 80V n-channel mosfets in a single 3.3 x 3.3mm package from Vishay.

Vishay SiZF4800LDT dual mosfet cct

Called SiZF4800LDT, the “device provides designers with a space-saving solution for synchronous buck converters, point-of-load converters, and half-bridge and full-bridge power stages,” according to New Yorker. “In these applications, the high and low side mosfets form an optimised combination for 50% duty cycles, while its logic level turn-on at 4.5 V simplifies circuit driving.”

Vishay SiZF4800LDT dual mosfet

Maximum continuous drain current is 29A (70°C) with sufficient heatsinking, but realistically under 10A with 25 x 25mm square of FR4 PCB.


Max total gate charge is 11nC for 4.5V drive, 23nC for 10V drive (40V 10A drain-source.


On-resistance with 4.5V on the gate is 24mΩmax.

Find the dual mosfet on this web page

Steve Bush

Steve Bush is the long-standing technology editor for Electronics Weekly, covering electronics developments for more than 25 years. He has a particular interest in the Power and Embedded areas of the industry. He also writes for the Engineer In Wonderland blog, covering 3D printing, CNC machines and miscellaneous other engineering matters.

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