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. 168-8895
Mfr. Part No.STTH8R04D
$0.999
Each (In a Tube of 50)
units
Single 8A Through Hole 1 400V TO-220AC Silicon Junction 1.5V 2 - -40 °C +175 °C 10.4mm 4.6mm
RS Stock No. 183-5016
Mfr. Part No.1SS400CMT2R
BrandROHM
$0.059
Each (In a Pack of 200)
units
Single 225mA Surface Mount 1 80V SOD-923 - - 2 3pF - +150 °C 0.91mm 0.65mm
RS Stock No. 146-9362
Mfr. Part No.1SS380VMTE-17
BrandROHM
$0.044
Each (On a Reel of 3000)
units
Single 225mA Surface Mount 1 80V SOD-323FL - - 2 5pF - +150 °C 1.8mm 1.35mm
RS Stock No. 751-3421
Mfr. Part No.BAV116W-7-F
$0.108
Each (On a Tape of 100)
units
Single 215mA Surface Mount 1 130V SOD-123 - 1.25V 2 5pF -65 °C +150 °C 2.85mm 1.7mm
RS Stock No. 180-6988
Mfr. Part No.LS4148-GS18
BrandVishay
$0.03
Each (On a Reel of 10000)
units
Single 300mA Surface Mount 1 75V SOD-80 Silicon Junction - 2 4pF -65 °C +175 °C - -
RS Stock No. 169-7847
Mfr. Part No.DA2S00100L
BrandPanasonic
$0.06
Each (On a Reel of 3000)
units
Single 100mA Surface Mount 1 40V SSMini2 F5 B Silicon Junction 1V 2 1.2pF -25 °C +85 °C 1.2mm 0.8mm
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High efficiencyUltra-small, low-profile surface-mount packagesOptimized for Low forward voltage drop and high junction temperatureLow capacitanceNegligible power switching lossesLow leakage current.