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. 843-1562
Mfr. Part No.1N4148
R 0.408
Each (In a Pack of 250)
units
Single 300mA Through Hole 1 100V DO-35 Silicon Junction 1V 2 4pF - +175 °C - -
RS stock no. 739-0290
Mfr. Part No.1N4148TA
R 1.902
Each (In a Pack of 20)
units
Single 400mA Through Hole 1 100V DO-35 Silicon Junction 1V 2 4pF -65 °C +175 °C 4.56mm -
RS stock no. 842-8276
Mfr. Part No.1N4148
R 0.114
Each (On a Reel of 2000)
units
- - - - - - - - - - - - - -
RS stock no. 671-5477
Mfr. Part No.1N4148TR
R 1.92
Each (In a Pack of 20)
units
Single 400mA Through Hole 1 100V DO-35 Silicon Junction 1V 2 4pF -65 °C +175 °C 4.56mm 1.91mm
RS stock no. 124-1312
Mfr. Part No.1N4148TA
R 0.194
Each (On a Reel of 5000)
units
Single 400mA Through Hole 1 100V DO-35 Silicon Junction 1V 2 4pF -65 °C +175 °C 4.56mm -
RS stock no. 124-1307
Mfr. Part No.1N4148TR
R 0.197
Each (On a Reel of 10000)
units
Single 400mA Through Hole 1 100V DO-35 Silicon Junction 1V 2 4pF -65 °C +175 °C 4.56mm 1.91mm
RS stock no. 842-8002
Mfr. Part No.1N4148
R 0.199
Each (In a Box of 2000)
units
Single 300mA Through Hole 1 100V DO-35 Silicon Junction 1V 2 4pF - +175 °C - -
RS stock no. 625-5379
Mfr. Part No.MURD620CTG
R 37.65
Each
units
Common Cathode - Surface Mount 2 - DPAK (TO-252) Silicon Junction 1.2V 3 - - - - -
RS stock no. 103-3904
Mfr. Part No.MURS360T3G
R 3.186
Each (On a Reel of 2500)
units
Single - Surface Mount 1 - DO-214AB (SMC) Silicon Junction 1.28V 2 - - - - -
RS stock no. 625-6574
Mfr. Part No.MURS360T3G
R 7.22
Each (In a Pack of 10)
units
Single - Surface Mount 1 - DO-214AB (SMC) Silicon Junction 1.28V 2 - - - - -
RS stock no. 178-7548
Mfr. Part No.MURD620CTT4G
R 6.112
Each (On a Reel of 2500)
units
Common Cathode - Surface Mount 2 - DPAK (TO-252) Silicon Junction 1.2V 3 - -65 °C +175 °C 6.73mm 6.22mm
RS stock no. 103-3890
Mfr. Part No.MURD620CTG
R 10.303
Each (In a Tube of 75)
units
Common Cathode - Surface Mount 2 - DPAK (TO-252) Silicon Junction 1.2V 3 - - - - -
RS stock no. 463-555
Mfr. Part No.MURD620CTT4G
R 5.141
Each (In a Pack of 20)
units
Common Cathode - Surface Mount 2 - DPAK (TO-252) Silicon Junction 1.2V 3 - - - - -
RS stock no. 761-3476
Mfr. Part No.1N4148WS
R 0.821
Each (In a Pack of 100)
units
Single 300mA Surface Mount 1 75V SOD-323 Silicon Junction 1V 2 4pF - +150 °C 1.8mm 1.35mm
RS stock no. 124-1361
Mfr. Part No.1N4148WT
R 0.372
Each (On a Reel of 8000)
units
Single 300mA Surface Mount 1 75V SOD-523 Silicon Junction 1V 2 4pF -55 °C +150 °C 1.3mm 0.9mm
RS stock no. 145-3233
Mfr. Part No.SBAS16LT1G
R 0.734
Each (On a Reel of 3000)
units
Single 200mA Surface Mount 1 100V SOT-23 Silicon Junction 1.25V 3 2pF -55 °C +150 °C 3.04mm 4.5mm
RS stock no. 808-3955
Mfr. Part No.SBAS16LT1G
R 1.654
Each (On a Tape of 200)
units
Single 200mA Surface Mount 1 100V SOT-23 - 1.25V 3 2pF -55 °C +150 °C 3.04mm 4.5mm
RS stock no. 545-2119
Mfr. Part No.MUR1620CTRG
R 27.40
Each
units
Common Anode - Through Hole 2 - TO-220AB Silicon Junction 1.2V 3 - -65 °C +175 °C 10.28mm 4.82mm
RS stock no. 103-2959
Mfr. Part No.MUR1620CTRG
R 18.994
Each (In a Tube of 50)
units
Common Anode - Through Hole 2 - TO-220AB Silicon Junction 1.2V 3 - - - - -
RS stock no. 146-2166
Mfr. Part No.1N914BWT
R 0.381
Each (On a Reel of 8000)
units
Single 300mA Surface Mount 1 75V SOD-523F Silicon Junction 720mV 2 4pF -55 °C +150 °C 1.3mm 0.9mm