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. 710-5733
Mfr. Part No.DA4X101F0R
BrandPanasonic
HK$2.401
Each (In a Pack of 10)
units
Isolated - Surface Mount 2 - SOT-143 Silicon Junction 1.2V 4 - - +150 °C 2.9mm 1.5mm
RS Stock No. 159-6567
Mfr. Part No.GP15D-E3/54
BrandVishay
HK$0.931
Each (On a Reel of 4000)
units
Single - Through Hole 1 - DO-204AC Silicon Junction 1.1V 2 - -65 °C +175 °C 7.6mm -
RS Stock No. 170-4145
Mfr. Part No.BAV19WS RR
HK$0.409
Each (On a Reel of 3000)
units
Single 200mA Surface Mount 1 - SOD-323F Silicon Junction 1.25V 2 5pF -65 °C +150 °C 1.8mm 1.4mm
RS Stock No. 110-7173
Mfr. Part No.IDP08E65D2XKSA1
BrandInfineon
HK$11.074
Each (In a Pack of 20)
units
Single - Through Hole 1 - TO-220 Silicon Junction 2.2V 2 - -40 °C +175 °C 10.2mm 4.5mm
RS Stock No. 170-2445
Mfr. Part No.1SS380TE-17
BrandROHM
HK$0.402
Each (On a Reel of 3000)
units
Single - Surface Mount 1 - SOD-323 Silicon Junction 1.2V 2 - -55 °C +125 °C 1.7mm 1.25mm
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