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. 145-2640
Mfr. Part No.BAV21W-E3-08
BrandVishay
HK$0.411
Each (On a Reel of 3000)
units
Single 200mA Surface Mount 1 200V SOD-123 Silicon Junction 1.25V 2 - -65 °C +150 °C 2.85mm 1.7mm
RS Stock No. 710-4506
Mfr. Part No.BAV21W-E3-08
BrandVishay
HK$0.917
Each (In a Pack of 100)
units
Single 200mA Surface Mount 1 200V SOD-123 - 1.25V 2 - -65 °C +150 °C 2.85mm 1.7mm
RS Stock No. 165-2759
Mfr. Part No.UG1D-E3/54
BrandVishay
HK$1.401
Each (On a Reel of 5500)
units
Single - Through Hole 1 - DO-204AL Silicon Junction 950mV 2 - -55 °C +150 °C 5.2mm -
RS Stock No. 748-0999
Mfr. Part No.UG1D-E3/54
BrandVishay
HK$2.812
Each (In a Pack of 10)
units
Single - Through Hole 1 - DO-204AL Silicon Junction 950mV 2 - -55 °C +150 °C 5.2mm -
RS Stock No. 177-7382
Mfr. Part No.BA159-E3/54
BrandVishay
HK$0.513
Each (On a Reel of 5500)
units
Single 1A Through Hole 1 1000V DO-204AL Silicon Junction 1.3V 2 - -65 °C +125 °C 5.2mm 2.7mm
RS Stock No. 708-7994
Mfr. Part No.BA159-E3/54
BrandVishay
HK$0.855
Each (In a Pack of 100)
units
Single 1A Through Hole 1 1000V DO-204AL - 1.3V 2 - -65 °C +125 °C 5.2mm 2.7mm
RS Stock No. 165-7210
Mfr. Part No.EGF1D-E3/67A
BrandVishay
HK$1.88
Each (On a Reel of 1500)
units
Single - Surface Mount 1 - DO-214BA Silicon Junction 1V 2 - -65 °C +175 °C 4.75mm 2.9mm
RS Stock No. 812-2048
Mfr. Part No.EGF1D-E3/67A
BrandVishay
HK$4.33
Each (In a Pack of 25)
units
Single - Surface Mount 1 - DO-214BA Silicon Junction 1V 2 - -65 °C +175 °C 4.75mm 2.9mm
RS Stock No. 919-4454
Mfr. Part No.LS4148-GS08
BrandVishay
HK$0.213
Each (On a Reel of 2500)
units
Single 300mA Surface Mount 1 100V Quadro Melf Silicon Junction 1V 2 - -65 °C +175 °C 3.5mm 1.7mm
RS Stock No. 443-3690
Mfr. Part No.LS4148-GS08
BrandVishay
HK$1.11
Each (In a Pack of 50)
units
Single 300mA Surface Mount 1 100V Quadro Melf - 1V 2 - -65 °C +175 °C 3.5mm 1.7mm
RS Stock No. 918-9672
Mfr. Part No.LL4148-GS08
BrandVishay
HK$0.205
Each (On a Reel of 2500)
units
Single 2A Surface Mount 1 100V SOD-80 Silicon Junction 1V 2 4pF - - 3.7mm -
RS Stock No. 170-8378
Mfr. Part No.GP10V-E3/73
BrandVishay
HK$1.183
Each (On a Tape of 5500)
units
Single - Through Hole 1 - DO-204AL Silicon Junction 1.3V 2 - -65 °C +150 °C 5.2mm -
RS Stock No. 865-1892
Mfr. Part No.1N4148W-E3-08
BrandVishay
HK$0.317
Each (On a Reel of 3000)
units
Single - Surface Mount 1 - SOD-123 Silicon Junction - 2 - -55 °C +150 °C 2.85mm 1.7mm
RS Stock No. 177-7620
Mfr. Part No.AU1PKHM3/84A
BrandVishay
HK$2.696
Each (On a Reel of 3000)
units
- - - - - - - - - - - - - -
RS Stock No. 812-2215
Mfr. Part No.FESF8GT-E3/45
BrandVishay
HK$9.785
Each (In a Pack of 10)
units
Single - Through Hole 1 - TO-220F Silicon Junction 1.3V 2 - -55 °C +150 °C 10.26mm 4.83mm
RS Stock No. 700-2886
Mfr. Part No.LL4148-GS08
BrandVishay
HK$0.449
Each (In a Pack of 250)
units
Single 2A Surface Mount 1 100V SOD-80 - 1V 2 4pF - - 3.7mm -
RS Stock No. 145-1677
Mfr. Part No.FESF8GT-E3/45
BrandVishay
HK$9.50
Each (In a Tube of 50)
units
Single - Through Hole 1 - TO-220F Silicon Junction 1.3V 2 - -55 °C +150 °C 10.26mm 4.83mm
RS Stock No. 812-9244
Mfr. Part No.S5M-E3/57T
BrandVishay
HK$3.06
Each (In a Pack of 20)
units
Single - Surface Mount 1 - DO-214AB (SMC) Silicon Junction 1.15V 2 - -55 °C +150 °C 7.11mm 6.22mm
RS Stock No. 815-2519
Mfr. Part No.GP10V-E3/54
BrandVishay
HK$2.43
Each (In a Pack of 50)
units
Single - Through Hole 1 - DO-204AL Silicon Junction 1.3V 2 - -65 °C +150 °C 5.2mm -
RS Stock No. 170-8316
Mfr. Part No.MUR420-E3/73
BrandVishay
HK$2.931
Each (On a Tape of 1400)
units
Single - Through Hole 1 - DO-201AD Silicon Junction 890mV 2 - -65 °C +175 °C 9.5mm -