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Nexperia launches first 80V RETs for 48V automotive and other higher voltage bus circuits

Nexperia has developed the industry’s first 80 V RET (Resistor-Equipped Transistor) family.

These new RETs or ‘digital transistors’ have been designed to provide enough headroom for use in 48V automotive board net (e.g. mild hybrid and EV cars) and other higher voltage circuits which are often subject to large spikes and pulses that previous 50V parts cannot handle.

RETs save both space and reduce manufacturing costs by combining the bias resistor and bias-emitter resistor in the same SOT23 (250 mW Ptot) or SOT323 (235 mW Ptot) package as the transistor. Double RETs (two transistors and two matching bias resistors and bias-emitter resistors) are also available in the SOT363 package with a Ptot of 350 mW for even greater integration and savings.

The series (NHDTx and NHUMx) includes 42 parts with PNP/NPN combinations. These come with the same bias resistor combinations as Nexperia’s 50V parts. Devices have a 100 mA current capability and are AEC-Q101-approved.

Commenting Frank Matschullat, product group manager at Nexperia said, “Design engineers working on new EV applications can future-proof their systems by using Nexperia’s new RETs to simplify circuit design, save PCB space, reduce pick and place time and increase reliability. As well as 48V automotive circuit driver applications, general-purpose switching and amplification and other digital systems will benefit from these new high voltage devices.”

Neil Tyler

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