MRF7S38040HR5

The MRF7S38040HR5 is a Field Effect Transistor (FET) manufactured by Freescale Semiconductors and is part of their High Linear Power Series (HLPS) of FETs. In terms of their type, the MRF7S38040HR5 is a lateral N-Channel Enhancement-Mode Device for RF applications such as amplifier, switches, and analog RF communication systems.

The MRF7S38040HR5 exhibits enhanced linear power-gain characteristics and exceptional input-return loss compared to most conventional FETs. This is made possible through its Diamond Gate III Technology, which allows for improved trim-ability and repeatable performance. This means that it is well-suited for Class AB and C amplifiers in both 802.11 WLAN and 3G cellular handset applications.

The MRF7S38040HR5 is specifically designed to handle u-NII and ETSI applications, particularly 802.11n. This device offers excellent previous/reverse inter pairing and increased operating speeds as compared to other FETs of its type. It has an exceptionally low drain current which can be as low as 2mA and a drain to source leakage current that is as low as 10uA.

The MRF7S38040HR5 utilizes a planar process for the diamond gate and the source for improved thermal stability and RF performance. This process can also provide lower capacitance and resistance values. The device is capable of a maximum drain-source breakdown voltage of 40V and a pulsed drain current of 38A. Due to its extremely low thermal resistance, the MRF7S38040HR5 has superior thermal management compared to other FETs.

The working principle of the MRF7S38040HR5 is simple; an electric field is generated by an input signal applied to the gate. This electric field interacts with the mobile charge carriers (electrons) in the silicon to create holes and electrons, which then flow to the drain and source respectively. By controlling the level of gate voltage by the gate current, the amount of drain current can be adjusted. The degree to which this current can be adjusted is called gain, which is used to describe the linear response of a given transistor.

The MRF7S38040HR5 Field Effect Transistor is designed for wireless and mobile applications. Its exceptional performance and features make it a valuable component for analog RF communications, handheld and wireless LAN systems, and projects requiring superior linear power gain.