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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Beskrivning Pris 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
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Tillv. art.nr1N4148WS
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Single 200mA Surface Mount 1 100V SOT-23 - 1.25V 3 2pF -55 °C +150 °C 3.04mm 4.5mm
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Single - Through Hole 1 - TO-220AC Silicon Junction 1.05V 2 - -65 °C +175 °C 10.29mm 4.82mm
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Common Anode 215mA Surface Mount 2 - SOT-23 (TO-236AB) Silicon Junction 1.25V 3 - -65 °C +150 °C 3mm 1.4mm
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Single - Surface Mount 1 - DO-214AA (SMB) Silicon Junction 940mV 2 - -60 °C +175 °C 4.6mm 3.95mm
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Single - Surface Mount 1 - SMini2 F5 B Silicon Junction 1.1V 2 - - +150 °C 1.7mm 1.25mm
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Single 8A Surface Mount 1 200V DPAK (TO-252) Silicon Junction 1.05V 3 - - +175 °C 6.6mm 6.2mm
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