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
$0.006
Each (On a Reel of 2000)
units
- - - - - - - - - - - - - -
RS Stock No. 124-1307
Mfr. Part No.1N4148TR
$0.012
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. 739-0290
Mfr. Part No.1N4148TA
$0.095
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. 843-1562
Mfr. Part No.1N4148
$0.061
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
$0.014
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. 671-5477
Mfr. Part No.1N4148TR
$0.104
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. 842-8002
Mfr. Part No.1N4148
$0.019
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. 781-5165
Mfr. Part No.SBAW56LT3G
$0.213
Each (On a Tape of 50)
units
Common Anode 200mA Surface Mount 2 70V SOT-23 Silicon Junction 1.25V 3 2pF -55 °C +150 °C 3.04mm 1.4mm
RS Stock No. 163-1156
Mfr. Part No.SBAW56LT3G
$0.089
Each (On a Reel of 10000)
units
Common Anode 200mA Surface Mount 2 70V SOT-23 Silicon Junction 1.25V 3 2pF -55 °C +150 °C 3.04mm 1.4mm
RS Stock No. 145-3362
Mfr. Part No.SBAW56LT1G
$0.075
Each (On a Reel of 3000)
units
Common Anode 200mA Surface Mount 2 70V SOT-23 Silicon Junction 1.25V 3 2pF -55 °C +150 °C 3.04mm 1.4mm
RS Stock No. 781-5161
Mfr. Part No.SBAW56LT1G
$0.147
Each (In a Pack of 50)
units
Common Anode 200mA Surface Mount 2 70V SOT-23 - 1.25V 3 2pF -55 °C +150 °C 3.04mm 1.4mm
RS Stock No. 805-1488
Mfr. Part No.M1MA152WKT1G
$0.051
Each (In a Pack of 250)
units
Common Cathode 100 mA, 150 mA Surface Mount 2 80V SOT-346 (SC-59) Silicon Junction 1.2V 3 2pF - +150 °C 3.1mm 1.7mm
RS Stock No. 145-3201
Mfr. Part No.M1MA152WKT1G
$0.025
Each (On a Reel of 3000)
units
Common Cathode 100 mA, 150 mA Surface Mount 2 80V SOT-346 (SC-59) Silicon Junction 1.2V 3 2pF - +150 °C 3.1mm 1.7mm
RS Stock No. 124-1361
Mfr. Part No.1N4148WT
$0.039
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. 761-4283
Mfr. Part No.1N4148WT
$0.092
Each (In a Pack of 100)
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. 761-3476
Mfr. Part No.1N4148WS
$0.093
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
$0.721
Each (In a Pack of 20)
units
Common Cathode - Surface Mount 2 - DPAK (TO-252) Silicon Junction 1.2V 3 - - - - -
RS Stock No. 178-7548
Mfr. Part No.MURD620CTT4G
$0.326
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. 805-1475
Mfr. Part No.M1MA152KT1G
$0.058
Each (On a Tape of 250)
units
Single 100mA Surface Mount 1 80V SOT-346 (SC-59) Silicon Junction 1.2V 3 2pF - +150 °C 3.1mm 1.7mm
RS Stock No. 145-3199
Mfr. Part No.M1MA152KT1G
$0.029
Each (On a Reel of 3000)
units
Single 100mA Surface Mount 1 80V SOT-346 (SC-59) Silicon Junction 1.2V 3 2pF - +150 °C 3.1mm 1.7mm