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. 146-2253
Mfr. Part No.1N4148 A0
£0.01
Each (On a Tape of 5000)
Units
Single 150mA Through Hole 1 100V DO-35 Silicon Junction 1V 2 4pF -65 °C +150 °C 5.08mm 2.3mm
RS Stock No. 652-7343
Mfr. Part No.1N4148 A0
£0.018
Each (In a Pack of 500)
Units
Single 150mA Through Hole 1 100V DO-35 Silicon Junction 1V 2 4pF -65 °C +150 °C 5.08mm 2.3mm
RS Stock No. 169-8965
Mfr. Part No.TS4148 RXG
£0.038
Each (On a Reel of 5000)
Units
Single - Surface Mount 1 - 1206 Silicon Junction 1V 2 - -65 °C +200 °C 3.4mm 1.7mm
RS Stock No. 652-6003
Mfr. Part No.TS4148 RXG
£0.118
Each (In a Pack of 250)
Units
Single - Surface Mount 1 - 1206 Silicon Junction 1V 2 - -65 °C +200 °C 3.4mm 1.7mm
RS Stock No. 169-9318
Mfr. Part No.S1B R2
£0.032
Each (On a Reel of 7500)
Units
Single - Surface Mount 1 - DO-214AC (SMA) Silicon Junction 1.1V 2 - -55 °C +175 °C 4.6mm 2.83mm
RS Stock No. 748-5149
Mfr. Part No.S1B R2
£0.244
Each (In a Pack of 50)
Units
Single - Surface Mount 1 - DO-214AC (SMA) Silicon Junction 1.1V 2 - -55 °C +175 °C 4.6mm 2.83mm
RS Stock No. 796-9325
Mfr. Part No.HS5M R7
£0.401
Each (In a Pack of 25)
Units
Single - Surface Mount 1 - DO-214AB (SMC) Silicon Junction 1.7V 2 - -55 °C +150 °C 7.11mm 6.22mm
RS Stock No. 170-4091
Mfr. Part No.HS5M R7
£0.368
Each (On a Reel of 850)
Units
Single - Surface Mount 1 - DO-214AB (SMC) Silicon Junction 1.7V 2 - -55 °C +150 °C 7.11mm 6.22mm
RS Stock No. 169-9317
Mfr. Part No.S1JL R2
£0.037
Each (On a Reel of 7500)
Units
Single - Surface Mount 1 - Sub SMA Silicon Junction 1.1V 2 - -55 °C +175 °C 2.9mm 1.9mm
RS Stock No. 748-5146
Mfr. Part No.S1JL R2
£0.288
Each (In a Pack of 50)
Units
Single - Surface Mount 1 - Sub SMA Silicon Junction 1.1V 2 - -55 °C +175 °C 2.9mm 1.9mm
RS Stock No. 748-5108
Mfr. Part No.LL4448 L1
£0.029
Each (In a Pack of 300)
Units
Single - Surface Mount 1 - MiniMELF Silicon Junction 1V 2 - -65 °C +200 °C 3.7mm 1.6mm
RS Stock No. 169-9309
Mfr. Part No.LL4448 L1
£0.015
Each (On a Reel of 2500)
Units
Single - Surface Mount 1 - MiniMELF Silicon Junction 1V 2 - -65 °C +200 °C 3.7mm 1.6mm
RS Stock No. 170-4031
Mfr. Part No.ES2J R5
£0.112
Each (On a Reel of 850)
Units
Single - Surface Mount 1 - DO-214AA (SMB) Silicon Junction 1.7V 2 - -55 °C +150 °C 4.75mm 3.73mm
RS Stock No. 169-9315
Mfr. Part No.RS1M R2
£0.039
Each (On a Reel of 7500)
Units
Single - Surface Mount 1 - DO-214AC (SMA) Silicon Junction 1.3V 2 - -55 °C +150 °C 4.6mm 2.83mm
RS Stock No. 796-5875
Mfr. Part No.ES2J R5
£0.328
Each (In a Pack of 50)
Units
Single - Surface Mount 1 - DO-214AA (SMB) Silicon Junction 1.7V 2 - -55 °C +150 °C 4.75mm 3.73mm
RS Stock No. 796-5888
Mfr. Part No.ES3D R7
£0.404
Each (In a Pack of 25)
Units
Single - Surface Mount 1 - DO-214AB (SMC) Silicon Junction 950mV 2 - -55 °C +150 °C 7.11mm 6.22mm
RS Stock No. 146-2303
Mfr. Part No.ES3D R7
£0.286
Each (On a Reel of 850)
Units
Single - Surface Mount 1 - DO-214AB (SMC) Silicon Junction 950mV 2 - -55 °C +150 °C 7.11mm 6.22mm
RS Stock No. 146-2256
Mfr. Part No.ES3D R6
£0.126
Each (On a Reel of 3000)
Units
Single - Surface Mount 1 - DO-214AB (SMC) Silicon Junction 950mV 2 - -55 °C +150 °C 7.11mm 6.22mm
RS Stock No. 652-7472
Mfr. Part No.ES3D R6
£0.302
Each (In a Pack of 50)
Units
Single - Surface Mount 1 - DO-214AB (SMC) Silicon Junction 950mV 2 - -55 °C +150 °C 7.11mm 6.22mm
RS Stock No. 748-5133
Mfr. Part No.RS1M R2
£0.202
Each (In a Pack of 50)
Units
Single - Surface Mount 1 - DO-214AC (SMA) Silicon Junction 1.3V 2 - -55 °C +150 °C 4.6mm 2.83mm