SMP1302-040LF

SMP1302-040LF is a device in the category of Diodes – RF. It belongs to a new family of high-speed, low-power Silicon-Germanium Schottky Diodes featuring low capacitance Fabged Silicon. It is designed to have a low device capacitance of 4.0 pF, enabling high cutoff frequency performance. SMP1302-040LF also has a very low leakage current of 120 pA at 25° C. The device has a very wide temperature range of -55° C to +175° C.

Application Field

SMP1302-040LF is well suited for a variety of applications such as RF switching, dynamic frequency conversion, mixers, detectors, modulation, band pass filters and many more. The low device capacitance, low leakage current and wide temperature range make it the perfect choice for use in high frequency radio, wireless, cellular and PDA applications. The device is also ideal for use in automotive radar and navigation applications, military and space applications, medical devices, and portable electronics just name a few.

Working Principle

SMP1302-040LF is a Schottky diode. This diode is based on a silicon germanium material. The silicon germanium material combined with the device\'s low capacitance structure provides the device with its low capacitance, low leakage current and wide temperature range behavior. The operation of the device is based on a rectifying principle. The device allows current flow in one direction (forward biased) while preventing current in the other direction (reverse biased). The forward biased conduction is done through an electron tunneling process which involves a very high tunneling efficiency. The reverse bias conduction on the other hand is done through a depletion of charges provided by the Schottky junction.

Conclusion

In conclusion, SMP1302-040LF is a Schottky diode belonging to the category of Diodes – RF. It is ideal for a variety of applications such as high frequency radio, wireless, cellular and PDA applications, as well as for automotive radar and navigation, military, space and medical devices. The device has a low capacitance, low leakage current and wide temperature range which enable its excellent performance. The device operates on a rectifying principle with forward biased conduction done through electron tunneling and reverse bias done through a depletion of charges.