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. 170-4134
Mfr. Part No.BAS316WS RR
HK$0.217
Each (On a Reel of 3000)
units
Single 250mA Surface Mount 1 75V SOD-323 Silicon Junction 1.25V 2 1.5pF - +150 °C 1.8mm 1.4mm
RS Stock No. 796-9580
Mfr. Part No.BAS316WS RR
HK$0.25
Each (In a Pack of 250)
units
Single 250mA Surface Mount 1 75V SOD-323 - 1.25V 2 1.5pF - +150 °C 1.8mm 1.4mm
RS Stock No. 146-2253
Mfr. Part No.1N4148 A0
HK$0.078
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
HK$0.561
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. 170-4049
Mfr. Part No.FR106G R0
HK$0.359
Each (On a Reel of 5000)
units
Single - Through Hole 1 - DO-41 Silicon Junction 1.3V 2 - -55 °C +150 °C 5.2mm -
RS Stock No. 796-5982
Mfr. Part No.FR106G R0
HK$0.903
Each (In a Pack of 100)
units
Single - Through Hole 1 - DO-41 Silicon Junction 1.3V 2 - -55 °C +150 °C 5.2mm -
RS Stock No. 652-6003
Mfr. Part No.TS4148 RXG
HK$0.536
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. 169-8965
Mfr. Part No.TS4148 RXG
HK$0.301
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. 146-2324
Mfr. Part No.RS3B R7
HK$0.962
Each (On a Reel of 850)
units
Single - Surface Mount 1 - DO-214AB (SMC) Silicon Junction 1.3V 2 - -55 °C +150 °C 7.11mm 6.22mm
RS Stock No. 796-9662
Mfr. Part No.BAV21WS RR
HK$0.356
Each (In a Pack of 250)
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. 796-9417
Mfr. Part No.RS3B R7
HK$2.825
Each (In a Pack of 50)
units
Single - Surface Mount 1 - DO-214AB (SMC) Silicon Junction 1.3V 2 - -55 °C +150 °C 7.11mm 6.22mm
RS Stock No. 170-4147
Mfr. Part No.BAV21WS RR
HK$0.229
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. 169-9306
Mfr. Part No.ES1DL R2
HK$0.691
Each (On a Reel of 7500)
units
Single - Surface Mount 1 - Sub SMA Silicon Junction 950mV 2 - -55 °C +150 °C 2.9mm 1.9mm
RS Stock No. 796-5963
Mfr. Part No.FR104 R0
HK$0.234
Each (In a Pack of 250)
units
Single - Through Hole 1 - DO-41 Silicon Junction 1.2V 2 - -55 °C +150 °C 5.2mm -
RS Stock No. 177-5849
Mfr. Part No.ES1DL R3
HK$1.15
Each (On a Reel of 1800)
units
Single - Surface Mount 1 - DO-214AC (SMA) Silicon Junction 950mV 2 - -55 °C +150 °C 2.9mm 1.9mm
RS Stock No. 146-2305
Mfr. Part No.FR104 R0
HK$0.134
Each (On a Reel of 5000)
units
Single - Through Hole 1 - DO-41 Silicon Junction 1.2V 2 - -55 °C +150 °C 5.2mm -
RS Stock No. 748-5085
Mfr. Part No.ES1DL R2
HK$1.656
Each (In a Pack of 50)
units
Single - Surface Mount 1 - Sub SMA Silicon Junction 950mV 2 - -55 °C +150 °C 2.9mm 1.9mm
RS Stock No. 796-5799
Mfr. Part No.ES1DL R3
HK$1.457
Each (In a Pack of 50)
units
Single - Surface Mount 1 - DO-214AC (SMA) Silicon Junction 950mV 2 - -55 °C +150 °C 2.9mm 1.9mm
RS Stock No. 796-9666
Mfr. Part No.BAV99W RF
HK$0.314
Each (In a Pack of 250)
units
Series 130 mA, 150 mA Surface Mount 2 85V SOT-323 (SC-70) Silicon Junction 1.25V 3 1.5pF - +150 °C 2.1mm 1.35mm
RS Stock No. 796-5866
Mfr. Part No.ES2HA R3
HK$0.959
Each (In a Pack of 50)
units
Single - Surface Mount 1 - DO-214AC (SMA) Silicon Junction 1.7V 2 - -55 °C +150 °C 4.6mm 2.83mm