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. 148-6728
Mfr. Part No.BAS21HMT116
BrandROHM
SGD0.041
Each (In a Pack of 250)
units
Single 200mA Surface Mount 1 200V SOT-23 - - 3 2.5pF - +150 °C 2.9mm 1.3mm
RS Stock No. 180-8589
Mfr. Part No.1N4148WS-HE3-08
BrandVishay
SGD0.124
Each (In a Pack of 100)
units
- - - - - - - - - - - - - -
RS Stock No. 168-7751
Mfr. Part No.STTH802CB-TR
SGD0.399
Each (On a Reel of 2500)
units
Common Cathode 2 x 4A Surface Mount 2 200V DPAK (TO-252) Silicon Junction 1.25V 3 - - +175 °C 6.6mm 6.2mm
RS Stock No. 911-0989
Mfr. Part No.BAV99SH6327XTSA1
BrandInfineon
SGD0.05
Each (On a Reel of 3000)
units
Series 200mA Surface Mount 2 80V SOT-363 (SC-88) Silicon Junction 1.25V 6 1.5pF - +150 °C 2mm 1.25mm
RS Stock No. 146-2170
Mfr. Part No.S1J
SGD0.061
Each (On a Reel of 7500)
units
Single 1A Surface Mount 1 600V DO-214AC (SMA) Silicon Junction 1.1V 2 - -55 °C +150 °C 4.75mm 2.95mm
RS Stock No. 165-8591
Mfr. Part No.BAS21W,115
BrandNexperia
SGD0.05
Each (On a Reel of 3000)
units
Single 225mA Surface Mount 1 250V SOT-323 (SC-70) Silicon Junction 1.25V 3 2pF -55 °C +150 °C 2.2mm 1.35mm
RS Stock No. 545-2951
Mfr. Part No.MUR1620CTG
SGD1.316
Each (In a Pack of 5)
units
Common Cathode - Through Hole 2 - TO-220AB Silicon Junction 975mV 3 - -65 °C +175 °C 10.28mm 4.82mm
RS Stock No. 151-3352
Mfr. Part No.BAW101,215
BrandNexperia
SGD0.075
Each (On a Reel of 3000)
units
Dual 250mA Surface Mount 1 300V SOT-143B - - 4 2pF -65 °C +150 °C 3mm 1.4mm
RS Stock No. 122-1188
Mfr. Part No.S2GA-13-F
SGD0.122
Each (On a Reel of 5000)
units
Single 1.5A Surface Mount 1 400V SMA Silicon Junction 1.15V 2 20pF -65 °C +150 °C 4.6mm 2.92mm
RS Stock No. 170-8975
Mfr. Part No.6A6-T
SGD0.313
Each (On a Tape of 500)
units
Single - Through Hole 1 - R 6 Silicon Junction - 2 - -65 °C +175 °C 9.1mm -
RS Stock No. 184-1012
Mfr. Part No.MMDL914T1G
SGD0.032
Each (On a Reel of 3000)
units
Single 200mA Surface Mount 1 100V SOD-323 - - 2 4pF -55 °C +150 °C 1.8mm 1.35mm
RS Stock No. 166-0590
Mfr. Part No.BAS45AL,115
BrandNexperia
SGD0.176
Each (On a Reel of 2500)
units
Single 250mA Surface Mount 1 - MiniMELF Silicon Junction 1V 2 - -65 °C +175 °C 3.7mm 1.6mm
RS Stock No. 166-0583
Mfr. Part No.BAS56,215
BrandNexperia
SGD0.075
Each (On a Reel of 3000)
units
Isolated - Surface Mount 2 - SOT-143B Silicon Junction - 4 - - - - -
RS Stock No. 178-0668
Mfr. Part No.EMP11T2R
BrandROHM
SGD0.143
Each (In a Pack of 50)
units
- 300mA Surface Mount 4 80V EMD6, SC-107C, SOT-563 - - 6 3.5pF - +150 °C 1.7mm 1.3mm
RS Stock No. 122-0876
Mfr. Part No.BAV23A-7-F
SGD0.058
Each (On a Reel of 3000)
units
Common Anode 400mA Surface Mount 2 200V SOT-23 Silicon Junction 1.25V 3 5pF -65 °C +150 °C 3mm 1.4mm
RS Stock No. 145-2034
Mfr. Part No.BA157-E3/54
BrandVishay
SGD0.057
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. 751-4773
Mfr. Part No.S2A-13-F
SGD0.117
Each (In a Pack of 50)
units
Single 1.5A Surface Mount 1 50V SMB Silicon Junction 1.15V 2 20pF -65 °C 150 °C 4.57mm 3.94mm
RS Stock No. 121-9429
Mfr. Part No.1N4448HWT-7
SGD0.066
Each (On a Reel of 3000)
units
Single - Surface Mount 1 - SOD-523 Silicon Junction - 2 - - - - -
RS Stock No. 169-0701
Mfr. Part No.MMBD4148TW-7-F
SGD0.13
Each (On a Reel of 3000)
units
Isolated 300mA Surface Mount 3 75V SOT-363 (SC-88) Silicon Junction 1.25V 6 2pF -65 °C +150 °C 2.2mm 1.35mm
RS Stock No. 145-2332
Mfr. Part No.GSD2004S-E3-08
BrandVishay
SGD0.037
Each (On a Reel of 3000)
units
Series 225mA Surface Mount 2 250V SOT-23 Silicon Junction 1V 3 5pF -55 °C +150 °C 3.1mm 1.43mm
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