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. 700-3671
Mfr. Part No.1N4148W-E3-08
BrandVishay
£0.063
Each (In a Pack of 100)
Units
Single 150mA Surface Mount 1 75V SOD-123 - 1.2V 2 4pF -55 °C +150 °C 2.85mm 1.7mm
RS Stock No. 865-1892
Mfr. Part No.1N4148W-E3-08
BrandVishay
£0.029
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. 918-9708
Mfr. Part No.1N4148WS-E3-08
BrandVishay
£0.029
Each (On a Reel of 3000)
Units
Single 150mA Surface Mount 1 75V SOD-323 Silicon Junction 1.2V 2 4pF -55 °C +150 °C 1.95mm 1.5mm
RS Stock No. 700-3677
Mfr. Part No.1N4148WS-E3-08
BrandVishay
£0.059
Each (In a Pack of 100)
Units
Single 150mA Surface Mount 1 75V SOD-323 - 1.2V 2 4pF -55 °C +150 °C 1.95mm 1.5mm
RS Stock No. 918-9672
Mfr. Part No.LL4148-GS08
BrandVishay
£0.032
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. 700-2886
Mfr. Part No.LL4148-GS08
BrandVishay
£0.036
Each (In a Pack of 250)
Units
Single 2A Surface Mount 1 100V SOD-80 - 1V 2 4pF - - 3.7mm -
RS Stock No. 919-4454
Mfr. Part No.LS4148-GS08
BrandVishay
£0.018
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
£0.075
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. 708-7994
Mfr. Part No.BA159-E3/54
BrandVishay
£0.076
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. 177-7382
Mfr. Part No.BA159-E3/54
BrandVishay
£0.028
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. 918-9698
Mfr. Part No.1N4148-TAP
BrandVishay
£0.01
Each (On a Reel of 10000)
Units
Single 300mA Through Hole 1 75V DO-35 Silicon Junction 1V 2 4pF -65 °C +175 °C 3.4mm 1.7mm
RS Stock No. 902-6663
Mfr. Part No.BYW54-TR
BrandVishay
£0.364
Each (In a Pack of 50)
Units
Single 2A Through Hole 1 600V SOD-57 - 1V 2 18pF -55 °C +175 °C 4mm -
RS Stock No. 145-2326
Mfr. Part No.BYW54-TR
BrandVishay
£0.142
Each (On a Reel of 5000)
Units
Single 2A Through Hole 1 600V SOD-57 Silicon Junction 1V 2 18pF -55 °C +175 °C 4mm -
RS Stock No. 700-3674
Mfr. Part No.1N4148-TAP
BrandVishay
£0.029
Each (In a Pack of 250)
Units
Single 300mA Through Hole 1 75V DO-35 Silicon Junction 1V 2 4pF -65 °C +175 °C 3.4mm 1.7mm
RS Stock No. 815-1169
Mfr. Part No.BA157-E3/54
BrandVishay
£0.073
Each (In a Pack of 100)
Units
Single 1A Through Hole 1 400V DO-204AL - 1.3V 2 12pF -65 °C +125 °C 5.2mm -
RS Stock No. 145-2034
Mfr. Part No.BA157-E3/54
BrandVishay
£0.028
Each (On a Reel of 5500)
Units
Single 1A Through Hole 1 400V DO-204AL Silicon Junction 1.3V 2 12pF -65 °C +125 °C 5.2mm -
RS Stock No. 811-9893
Mfr. Part No.MUR460-E3/54
BrandVishay
£0.454
Each (In a Pack of 10)
Units
Single - Through Hole 1 - DO-201AD Silicon Junction 1.28V 2 - -65 °C +175 °C 9.5mm -
RS Stock No. 169-6106
Mfr. Part No.BAV21-TAP
BrandVishay
£0.013
Each (On a Reel of 50000)
Units
Single - Through Hole 1 - DO-35 Silicon Junction 1V 2 - -65 °C +175 °C 3.9mm 1.7mm
RS Stock No. 700-3863
Mfr. Part No.BAV21-TAP
BrandVishay
£0.05
Each (In a Pack of 100)
Units
Single - Through Hole 1 - DO-35 Silicon Junction 1V 2 - -65 °C +175 °C 3.9mm 1.7mm
RS Stock No. 710-4519
Mfr. Part No.LL4148-GS18
BrandVishay
£0.044
Each (In a Pack of 250)
Units
Single 300mA Surface Mount 1 - MiniMELF - 1V 2 - -65 °C +175 °C 3.7mm 1.6mm