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. 751-4880
Mfr. Part No.SBR20A200CT
HK$9.46
Each (In a Pack of 5)
units
Common Cathode 20A Through Hole 2 200V TO-220AB - 960mV 3 - -65 °C +175 °C 10.66mm 4.82mm
RS Stock No. 545-2103
Mfr. Part No.MUR1520G
HK$7.73
Each
units
Single - Through Hole 1 - TO-220AC Silicon Junction 1.05V 2 - -65 °C +175 °C 10.29mm 4.82mm
RS Stock No. 183-5016
Mfr. Part No.1SS400CMT2R
BrandROHM
HK$0.318
Each (In a Pack of 200)
units
Single 225mA Surface Mount 1 80V SOD-923 - - 2 3pF - +150 °C 0.91mm 0.65mm
RS Stock No. 122-0260
Mfr. Part No.MMBD2004S-7-F
HK$0.481
Each (On a Reel of 3000)
units
Series 225mA Surface Mount 2 240V SOT-23 Silicon Junction 1V 3 5pF -65 °C +150 °C 3mm 1.4mm
RS Stock No. 145-4320
Mfr. Part No.ISL9R860P2
HK$5.611
Each (In a Tube of 50)
units
Single - - 1 - - Silicon Junction - - - - - - -
RS Stock No. 165-4952
Mfr. Part No.BAS16WS-E3-18
BrandVishay
HK$0.215
Each (On a Reel of 10000)
units
Single 250mA Surface Mount 1 75V SOD-323 Silicon Junction 1.25V 2 2pF -55 °C +150 °C 1.95mm 1.5mm
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. 146-0384
Mfr. Part No.BAS21J,115
BrandNexperia
HK$0.221
Each (On a Reel of 3000)
units
Single 250mA Surface Mount 1 300V SC-90 Silicon Junction 1.1V 2 2pF -65 °C +150 °C 1.8mm 1.35mm
RS Stock No. 902-6663
Mfr. Part No.BYW54-TR
BrandVishay
HK$1.20
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. 124-6523
Mfr. Part No.DA380UT106
BrandROHM
HK$1.684
Each (In a Pack of 50)
units
Series 225mA Surface Mount 2 80V SOT-323 (SC-70) Silicon Junction 1.2V 3 5 pF @ 0.5 V - +150 °C 2mm 1.25mm
RS Stock No. 815-1187
Mfr. Part No.BAQ133-GS08
BrandVishay
HK$0.683
Each (In a Pack of 100)
units
Single 200mA Surface Mount 1 30V SOD-80 - 1V 2 3pF - +175 °C 3.7mm 1.6mm
RS Stock No. 146-0499
Mfr. Part No.BAV23A,215
BrandNexperia
HK$0.37
Each (On a Reel of 3000)
units
Common Anode 225mA Surface Mount 2 200V SOT-23 Silicon Junction 1.25V 3 2pF -65 °C +150 °C 3mm 1.4mm
RS Stock No. 165-2756
Mfr. Part No.RS1K-E3/5AT
BrandVishay
HK$0.882
Each (On a Reel of 7500)
units
Single - Surface Mount 1 - SMA Silicon Junction - 4 - - - - -
RS Stock No. 751-4711
Mfr. Part No.RS1M-13-F
HK$2.28
Each (In a Pack of 50)
units
Single 1A Surface Mount 1 1000V SMA Silicon Junction 1.3V 2 15pF -65 °C +150 °C 4.6mm 2.92mm
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. 738-4737
Mfr. Part No.1N4148WS-7-F
HK$0.453
Each (In a Pack of 200)
units
Single 150mA Surface Mount 1 75V SOD-323 Silicon Junction 1.25V 2 - - - - -
RS Stock No. 146-0559
Mfr. Part No.BAS116H,115
BrandNexperia
HK$0.349
Each (On a Reel of 3000)
units
Single 215mA Surface Mount 1 75V SOD-123F Silicon Junction 1.25V 2 2pF -65 °C +150 °C 2.7mm 1.7mm
RS Stock No. 179-1085
Mfr. Part No.S3G-13-F
HK$1.849
Each (On a Reel of 3000)
units
Single 3A Stud 1 400V SMC Silicon Junction 1.15V 2 40pF -65 °C +150 °C 7.11mm 6.22mm
RS Stock No. 146-1445
Mfr. Part No.AU1PJHM3/84A
BrandVishay
HK$1.618
Each (On a Reel of 3000)
units
Single 1A Surface Mount 1 600V DO-220AA Silicon Junction 1.5V 2 11pF -55 °C +175 °C 3.61mm 2.18mm
RS Stock No. 180-8198
Mfr. Part No.BAS16-E3-08
BrandVishay
HK$0.317
Each (On a Reel of 3000)
units
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