Switching Diodes

A switching diode is a two terminal PN junction, often used in electronic systems to manage small voltages.


Switching Diode


A Switching Diode is commonly referred to as a “Signal Diode”, it is a semiconductor that can be used to switch signals or act as a rectifier at low voltages.


Within a circuit they can provide similar functionality to a physical switch, with the on/off state governed by the direction of the current flow. When there is forward current in the circuit (forward-bias), the switching diode effectively is a closed switch with low resistance, allowing current to flow. If the current of the circuit is reversed (reverse bias), the switching diode provides high resistance, preventing current flow up to a specified threshold.


Where are Switching Diodes used?


A switching diode can be used in low voltage applications that require fast switching and a high speed rectification. A diode can also be used as a circuit protection device to prevent reverse current damaging a device upstream of the switching diode, such as microcontroller.


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Description Price Diode Configuration Maximum Forward Current Mounting Type Number of Elements per Chip Maximum Reverse Voltage Package Type Diode Technology Maximum Forward Voltage Drop Pin Count Maximum Diode Capacitance Minimum Operating Temperature Maximum Operating Temperature Length Width
RS Stock No. 890-2563
Mfr. Part No.1SS181,LF(T
BrandToshiba
$0.103
Each (In a Pack of 50)
units
Common Anode 300mA Surface Mount 2 80V SOT-346 (SC-59) Silicon Junction 1.2V 3 4pF - - 2.9mm 1.5mm
RS Stock No. 182-5531
Mfr. Part No.1SS302A,LF(T
BrandToshiba
$0.095
Each (In a Pack of 100)
units
2x Series Pair 300mA Surface Mount 2 85V USM Silicon Junction - 3 3pF - +150 °C 2mm 1.25mm
RS Stock No. 182-5520
Mfr. Part No.1SS302A,LF(T
BrandToshiba
$0.104
Each (On a Reel of 3000)
units
2x Series Pair 300mA Surface Mount 2 85V USM Silicon Junction - 3 3pF - +150 °C 2mm 1.25mm