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. 761-3476
Mfr. Part No.1N4148WS
TWD2
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. 842-8276
Mfr. Part No.1N4148
TWD0
Each (On a Reel of 2000)
units
- - - - - - - - - - - - - -
RS Stock No. 124-1312
Mfr. Part No.1N4148TA
TWD0
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. 739-0290
Mfr. Part No.1N4148TA
TWD2
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
TWD1
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. 761-3473
Mfr. Part No.1N4148_T50A
TWD1
Each (In a Pack of 250)
units
Single 400mA Through Hole 1 100V DO-35 Silicon Junction 1V 2 4pF -65 °C +175 °C 4.56mm -
RS Stock No. 169-8781
Mfr. Part No.1N4148
TWD0
Each (In a Bag of 2000)
units
Single 300mA Through Hole 1 100V DO-35 Silicon Junction 1V 2 4pF - +175 °C - -
RS Stock No. 124-1307
Mfr. Part No.1N4148TR
TWD0
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
TWD0
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. 671-5477
Mfr. Part No.1N4148TR
TWD2
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. 165-2871
Mfr. Part No.RS1A-E3/61T
BrandVishay
TWD4
Each (On a Reel of 1800)
units
Single 1A Surface Mount 1 50V SMA Silicon Junction 1.3V 2 - -55 °C +150 °C 4.5mm 2.79mm
RS Stock No. 710-3096
Mfr. Part No.RS1A-E3/61T
BrandVishay
TWD7
Each (In a Pack of 50)
units
Single 1A Surface Mount 1 50V SMA - 1.3V 2 - -55 °C +150 °C 4.5mm 2.79mm
RS Stock No. 103-2962
Mfr. Part No.MURS120T3G
TWD6
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. 545-2153
Mfr. Part No.MURS120T3G
TWD11
Each
units
Single - Surface Mount 1 - DO-214AA (SMB) Silicon Junction 875mV 2 - -65 °C +175 °C 4.32mm 3.56mm
New
RS Stock No. 178-7092
Mfr. Part No.BAS521,115
BrandNexperia
TWD1
Each (On a Reel of 3000)
units
- - - - - - - - - - - - - -
RS Stock No. 508-276
Mfr. Part No.BAS521,115
BrandNexperia
TWD3
Each (In a Pack of 100)
units
Single 250mA Surface Mount 1 300V SOD-523 Silicon Junction 1.1V 2 - -65 °C +150 °C 1.25mm 0.85mm
RS Stock No. 121-9568
Mfr. Part No.UF1007-T
TWD2
Each (On a Reel of 5000)
units
Single 1A Through Hole 1 1000V DO-41 Silicon Junction 1.7V 2 10pF -65 °C +150 °C 5.21mm -
RS Stock No. 751-5118
Mfr. Part No.UF1007-T
TWD3
Each (In a Pack of 100)
units
Single 1A Through Hole 1 1000V DO-41 - 1.7V 2 10pF -65 °C +150 °C 5.21mm -
RS Stock No. 146-2253
Mfr. Part No.1N4148 A0
TWD0
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. 710-4519
Mfr. Part No.LL4148-GS18
BrandVishay
TWD1
Each (In a Pack of 250)
units
Single 300mA Surface Mount 1 - MiniMELF - 1V 2 - -65 °C +175 °C 3.7mm 1.6mm