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. 842-8276
Mfr. Part No.1N4148
HK$0.065
Each (On a Reel of 2000)
units
- - - - - - - - - - - - - -
RS Stock No. 842-8002
Mfr. Part No.1N4148
HK$0.088
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. 739-0290
Mfr. Part No.1N4148TA
HK$0.768
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. 124-1307
Mfr. Part No.1N4148TR
HK$0.063
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. 671-5477
Mfr. Part No.1N4148TR
HK$0.572
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. 843-1562
Mfr. Part No.1N4148
HK$0.277
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. 124-1312
Mfr. Part No.1N4148TA
HK$0.077
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. 625-6574
Mfr. Part No.MURS360T3G
HK$4.604
Each (In a Pack of 10)
units
Single - Surface Mount 1 - DO-214AB (SMC) Silicon Junction 1.28V 2 - -65 °C +175 °C 6.86mm 5.84mm
RS Stock No. 103-3904
Mfr. Part No.MURS360T3G
HK$1.966
Each (On a Reel of 2500)
units
Single - Surface Mount 1 - DO-214AB (SMC) Silicon Junction 1.28V 2 - -65 °C +175 °C 6.86mm 5.84mm
RS Stock No. 625-5379
Mfr. Part No.MURD620CTG
HK$14.86
Each
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. 103-2959
Mfr. Part No.MUR1620CTRG
HK$9.656
Each (In a Tube of 50)
units
Common Anode - Through Hole 2 - TO-220AB Silicon Junction 1.2V 3 - -65 °C +175 °C 10.28mm 4.82mm
RS Stock No. 761-3476
Mfr. Part No.1N4148WS
HK$0.403
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. 463-555
Mfr. Part No.MURD620CTT4G
HK$3.16
Each (In a Pack of 20)
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. 545-2153
Mfr. Part No.MURS120T3G
HK$10.40
Each
units
Single - Surface Mount 1 - DO-214AA (SMB) Silicon Junction 875mV 2 - -65 °C +175 °C 4.32mm 3.56mm
RS Stock No. 103-3890
Mfr. Part No.MURD620CTG
HK$3.845
Each (In a Tube of 75)
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. 103-2962
Mfr. Part No.MURS120T3G
HK$0.848
Each (On a Reel of 2500)
units
Single - Surface Mount 1 - DO-214AA (SMB) Silicon Junction 875mV 2 - -65 °C +175 °C 4.32mm 3.56mm
RS Stock No. 178-7548
Mfr. Part No.MURD620CTT4G
HK$3.892
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. 545-2119
Mfr. Part No.MUR1620CTRG
HK$17.16
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. 781-5146
Mfr. Part No.SBAS20LT1G
HK$1.548
Each (On a Tape of 50)
units
Single 200mA Surface Mount 1 200V SOT-23 - 1.25V 3 5pF -55 °C +150 °C 3.04mm 1.4mm
RS Stock No. 103-2958
Mfr. Part No.MUR1520G
HK$6.764
Each (In a Tube of 50)
units
Single - Through Hole 1 - TO-220AC Silicon Junction 1.05V 2 - -65 °C +175 °C 10.29mm 4.82mm