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. 700-2769
Mfr. Part No.DAN217T146
BrandROHM
HK$2.029
Each (In a Pack of 10)
units
Single - Surface Mount 1 - SOD-123 Silicon Junction 1.2V 3 - -55 °C +150 °C 2.9mm 1.6mm
RS Stock No. 169-0486
Mfr. Part No.DAN217T146
BrandROHM
HK$0.436
Each (On a Reel of 3000)
units
Single - Surface Mount 1 - SOD-123 Silicon Junction 1.2V 3 - -55 °C +150 °C 2.9mm 1.6mm
RS Stock No. 168-0405
Mfr. Part No.1SS400SMT2R
BrandROHM
HK$0.214
Each (On a Reel of 8000)
units
Single - Surface Mount 1 - EMD, SC-79, SOD-523 - - 2 - - +150 °C 1.25mm 0.85mm
RS Stock No. 168-0407
Mfr. Part No.DA221MT2L
BrandROHM
HK$0.548
Each (On a Reel of 8000)
units
- - Surface Mount 2 - SC-105AA, SOT-723, VMD - - 3 - - +150 °C 1.25mm 0.9mm
RS Stock No. 168-0409
Mfr. Part No.DA227YT2R
BrandROHM
HK$1.09
Each (On a Reel of 8000)
units
- - Surface Mount 2 - EMD, SC-107A, SOT-543 - - 4 - - +150 °C 1.7mm 1.3mm
RS Stock No. 169-0448
Mfr. Part No.IMN10T108
BrandROHM
HK$1.16
Each (On a Reel of 3000)
units
Isolated 300mA Surface Mount 3 80V SMD Silicon Junction 1.2V 6 - -55 °C +150 °C 2.9mm 1.6mm
RS Stock No. 148-6811
Mfr. Part No.DAP222MT2L
BrandROHM
HK$0.933
Each (In a Pack of 100)
units
Common Anode 300mA Surface Mount 2 80V SOT-723 - - 3 3.5pF - +150 °C 1.25mm 0.9mm
RS Stock No. 320-8285
Mfr. Part No.DAP202UT106
BrandROHM
HK$2.06
Each (In a Pack of 25)
units
Common Anode - Surface Mount 2 - SOT-323 (SC-70) Silicon Junction 1.2V 3 - -55 °C +150 °C 2mm 1.25mm
RS Stock No. 148-5752
Mfr. Part No.BAS16HMT116
BrandROHM
HK$0.829
Each (In a Pack of 250)
units
Single 215mA Surface Mount 1 80V SOT-23 - - 3 2pF - +150 °C 3.1mm 1.5mm
RS Stock No. 148-5717
Mfr. Part No.1SS380VMTE-17
BrandROHM
HK$1.11
Each (In a Pack of 200)
units
Single 225mA Surface Mount 1 80V SOD-323FL - - 2 5pF - +150 °C 1.8mm 1.35mm
RS Stock No. 146-9362
Mfr. Part No.1SS380VMTE-17
BrandROHM
HK$0.598
Each (On a Reel of 3000)
units
Single 225mA Surface Mount 1 80V SOD-323FL - - 2 5pF - +150 °C 1.8mm 1.35mm
RS Stock No. 183-5026
Mfr. Part No.DA221WMTL
BrandROHM
HK$0.303
Each (In a Pack of 150)
units
- 200mA Surface Mount 2 20V SOT-416FL - - 3 4pF - +150 °C 1.7mm 0.96mm
RS Stock No. 168-1456
Mfr. Part No.1SS355VMTE-17
BrandROHM
HK$0.52
Each (In a Pack of 250)
units
Single - Surface Mount 1 - SC-90A, SOD-323FL, UMD - - 2 - - +150 °C 1.8mm 1.35mm
RS Stock No. 146-9364
Mfr. Part No.BAS21HMT116
BrandROHM
HK$0.203
Each (On a Reel of 3000)
units
Single 200mA Surface Mount 1 200V SOT-23 - - 3 2.5pF - +150 °C 2.9mm 1.3mm
RS Stock No. 168-0411
Mfr. Part No.DAN222MT2L
BrandROHM
HK$0.59
Each (On a Reel of 8000)
units
- - Surface Mount 2 - SC-105AA, SOT-723, VMD - - 3 - - +150 °C 1.25mm 0.9mm
RS Stock No. 131-2783
Mfr. Part No.DAN202UMTL
BrandROHM
HK$0.599
Each (In a Pack of 200)
units
Common Cathode 300mA Surface Mount 2 80V SOT-323FL - 1.2V 3 3.5pF - +150 °C 2.1mm 1.35mm
RS Stock No. 826-7973
Mfr. Part No.UMP11NTN
BrandROHM
HK$2.85
Each (In a Pack of 30)
units
2x Common Anode Pair 300mA Surface Mount 4 80V SOT-363 (SC-88) Silicon Junction 1.2V 6 3.5pF - +150 °C 2mm 1.25mm
RS Stock No. 168-1409
Mfr. Part No.DA204UT106
BrandROHM
HK$0.898
Each (In a Pack of 100)
units
- - Surface Mount 2 - SC-70, SOD-323, UMD - - 3 - - +150 °C 2.2mm 1.35mm
RS Stock No. 146-9366
Mfr. Part No.BAV199HMT116
BrandROHM
HK$0.31
Each (On a Reel of 3000)
units
Common Anode 215mA Surface Mount 2 80V SOT-23 - - 3 4pF - +150 °C 3.1mm 1.5mm
RS Stock No. 131-2784
Mfr. Part No.DAN217WMTL
BrandROHM
HK$0.785
Each (In a Pack of 200)
units
Series 300mA Surface Mount 2 80V SOT-416FL - 1.2V 3 3.5pF - +150 °C 1.6mm 0.86mm