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. 545-2153
Mfr. Part No.MURS120T3G
HK$3.42
Each
units
Single - Surface Mount 1 - DO-214AA (SMB) Silicon Junction 875mV 2 - - - - -
RS Stock No. 625-5379
Mfr. Part No.MURD620CTG
HK$7.32
Each
units
Common Cathode - Surface Mount 2 - DPAK (TO-252) Silicon Junction 1.2V 3 - - - - -
RS Stock No. 122-0679
Mfr. Part No.1N4448W-7-F
HK$0.248
Each (On a Reel of 3000)
units
Single - - 1 - - Silicon Junction - - - - - - -
RS Stock No. 145-2147
Mfr. Part No.S07D-GS08
BrandVishay
HK$0.677
Each (On a Reel of 3000)
units
Single 1.5A Surface Mount 1 200V DO-219AB Silicon Junction 1.1V 2 - -55 °C +150 °C 2.9mm 1.9mm
RS Stock No. 122-0284
Mfr. Part No.PR1007G-T
HK$0.542
Each (On a Reel of 5000)
units
Single 1A Through Hole 1 1000V DO-41 Silicon Junction 1.3V 2 8pF -65 °C +150 °C 5.21mm -
RS Stock No. 131-4614
Mfr. Part No.DAP236UT106
BrandROHM
HK$1.362
Each (In a Pack of 50)
units
Common Anode - Surface Mount 2 35V SOT-323 (SC-70) Silicon Junction 1V 3 1.2pF - +125 °C 2.2mm 1.35mm
RS Stock No. 184-4169
Mfr. Part No.BAS21DW5T1G
HK$0.282
Each (On a Reel of 3000)
units
- 200mA Surface Mount 2 250V SC-88A - - 5 5pF -55 °C +150 °C 2.2mm 1.35mm
RS Stock No. 781-5165
Mfr. Part No.SBAW56LT3G
HK$1.513
Each (On a Tape of 50)
units
Common Anode 200mA Surface Mount 2 70V SOT-23 Silicon Junction 1.25V 3 2pF -55 °C +150 °C 3.04mm 1.4mm
RS Stock No. 121-9454
Mfr. Part No.BAS21-7-F
HK$0.196
Each (On a Reel of 3000)
units
Single - - 1 - - Silicon Junction - - - - - - -
RS Stock No. 121-9429
Mfr. Part No.1N4448HWT-7
HK$0.379
Each (On a Reel of 3000)
units
Single - Surface Mount 1 - SOD-523 Silicon Junction - 2 - - - - -
RS Stock No. 122-1186
Mfr. Part No.S1MB-13-F
HK$0.529
Each (On a Reel of 3000)
units
Single 1A Surface Mount 1 1000V SMB Silicon Junction 1.1V 2 10pF -65 °C +150 °C 4.57mm 3.94mm
RS Stock No. 751-3308
Mfr. Part No.BAS116-7-F
HK$0.389
Each (In a Pack of 25)
units
Single 215mA Surface Mount 1 85V SOT-23 Silicon Junction 1.25V 3 2pF -65 °C +150 °C 3mm 1.4mm
RS Stock No. 751-2715
Mfr. Part No.1N4003-T
HK$0.238
Each (In a Pack of 250)
units
Single 1A Through Hole 1 200V DO-41 - 1V 2 15pF -65 °C +150 °C 5.21mm -
RS Stock No. 170-8976
Mfr. Part No.6A8-T
HK$1.452
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. 170-8055
Mfr. Part No.BAS321,135
BrandNexperia
HK$0.231
Each (On a Reel of 10000)
units
Single 250mA Surface Mount 1 200V SOD-323 - - 2 2pF - +150 °C 1.8mm 1.35mm
RS Stock No. 710-4487
Mfr. Part No.BAQ334-TR
BrandVishay
HK$1.471
Each (In a Pack of 50)
units
Single 200mA Surface Mount 1 60V MicroMELF - 1V 2 - -65 °C +175 °C 2mm 1.2mm
RS Stock No. 710-4512
Mfr. Part No.LL4150GS08
BrandVishay
HK$0.481
Each (In a Pack of 100)
units
Single - Surface Mount 1 - SMB - - 2 - - - - -
RS Stock No. 124-2275
Mfr. Part No.BAS32L,115
BrandNexperia
HK$0.174
Each (On a Reel of 2500)
units
Single 200mA Surface Mount 1 75V MiniMELF Silicon Junction 1V 2 - -65 °C +200 °C 3.7mm 1.6mm
RS Stock No. 131-4612
Mfr. Part No.DAP202UMTL
BrandROHM
HK$0.40
Each (In a Pack of 200)
units
Common Anode 300mA Surface Mount 2 80V SOT-323FL - 1.2V 3 3.5pF - +150 °C 2.1mm 1.35mm
RS Stock No. 151-3364
Mfr. Part No.BAS21H,115
BrandNexperia
HK$0.225
Each (On a Reel of 3000)
units
Single 200mA Surface Mount 1 200V SOD-123F - - 2 5pF -65 °C +150 °C 2.7mm 1.7mm
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