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. 545-2686
Mfr. Part No.BAV99LT1G
HK$0.215
Each (On a Reel of 3000)
units
Series - Surface Mount 2 - SOT-23 Silicon Junction 1.25V 3 - -65 °C +150 °C 2.9mm 1.3mm
RS Stock No. 145-3547
Mfr. Part No.1N4006RLG
HK$0.314
Each (On a Reel of 5000)
units
Single - Through Hole 1 - DO-41 Silicon Junction 1.1V 2 - -65 °C +175 °C - -
RS Stock No. 781-5571
Mfr. Part No.1N4006RLG
HK$0.735
Each (In a Pack of 100)
units
Single - Through Hole 1 - DO-41 Silicon Junction 1.1V 2 - -65 °C +175 °C - -
RS Stock No. 690-0000
Mfr. Part No.BAS16HT1G
HK$0.916
Each (In a Pack of 25)
units
Single - Surface Mount 1 - SOD-323 Silicon Junction 1.25V 2 - -55 °C +150 °C 1.7mm 1.25mm
RS Stock No. 748-5085
Mfr. Part No.ES1DL R2
HK$5.754
Each (In a Pack of 50)
units
Single - Surface Mount 1 - Sub SMA Silicon Junction 950mV 2 - -55 °C +150 °C 2.9mm 1.9mm
RS Stock No. 811-9907
Mfr. Part No.MURS340-E3/57T
BrandVishay
HK$5.615
Each (On a Tape of 20)
units
Single - Surface Mount 1 - DO-214AB (SMC) Silicon Junction 1.28V 2 - -65 °C +175 °C 7.11mm 6.22mm
RS Stock No. 170-8316
Mfr. Part No.MUR420-E3/73
BrandVishay
HK$2.315
Each (On a Tape of 1400)
units
Single - Through Hole 1 - DO-201AD Silicon Junction 890mV 2 - -65 °C +175 °C 9.5mm -
RS Stock No. 865-1892
Mfr. Part No.1N4148W-E3-08
BrandVishay
HK$0.352
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. 761-3476
Mfr. Part No.1N4148WS
HK$0.501
Each (In a Pack of 100)
units
Single 300mA Surface Mount 1 75V SOD-323 Silicon Junction 1V 2 4pF - +150 °C 1.8mm 1.35mm
RS Stock No. 103-5079
Mfr. Part No.BAS16HT1G
HK$0.162
Each (On a Reel of 3000)
units
Single - Surface Mount 1 - SOD-323 Silicon Junction 1.25V 2 - -55 °C +150 °C 1.7mm 1.25mm
RS Stock No. 545-2119
Mfr. Part No.MUR1620CTRG
HK$15.29
Each
units
Common Anode - Through Hole 2 - TO-220AB Silicon Junction 1.2V 3 - -65 °C +175 °C 10.28mm 4.82mm
RS Stock No. 124-1354
Mfr. Part No.ES1J
HK$0.683
Each (On a Reel of 7500)
units
Single - Surface Mount 1 - DO-214AC (SMA) Silicon Junction 1.7V 2 - -55 °C +150 °C 4.6mm 2.9mm
RS Stock No. 812-9244
Mfr. Part No.S5M-E3/57T
BrandVishay
HK$3.282
Each (In a Pack of 20)
units
Single - Surface Mount 1 - DO-214AB (SMC) Silicon Junction 1.15V 2 - -55 °C +150 °C 7.11mm 6.22mm
RS Stock No. 761-4108
Mfr. Part No.DSEP30-06B
BrandIXYS
HK$34.43
Each
units
Single - Through Hole 1 - TO-247AC Silicon Junction 2.51V 2 - -55 °C +175 °C - -
RS Stock No. 781-1015
Mfr. Part No.MUR440G
HK$4.484
Each (In a Pack of 25)
units
Single - Through Hole 1 - DO-41 Silicon Junction 1.28V 2 - -65 °C +175 °C - -
RS Stock No. 103-2976
Mfr. Part No.MUR460RLG
HK$1.433
Each (On a Reel of 1500)
units
Single - Through Hole 1 - DO-201AD Silicon Junction 1.28V 2 - -65 °C +175 °C 9.5mm 5.3mm
RS Stock No. 438-0338
Mfr. Part No.BAS32L,115
BrandNexperia
HK$0.244
Each (On a Reel of 2500)
units
Single 200mA Surface Mount 1 75V MiniMELF - 1V 2 - -65 °C +200 °C 3.7mm 1.6mm
RS Stock No. 145-3086
Mfr. Part No.BAS20LT1G
HK$0.189
Each (On a Reel of 3000)
units
Single - Surface Mount 1 - SOT-23 Silicon Junction 1.25V 3 - -55 °C +150 °C 2.9mm 1.3mm
RS Stock No. 700-3671
Mfr. Part No.1N4148W-E3-08
BrandVishay
HK$0.769
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. 102-2277
Mfr. Part No.MMSD4148T1G
HK$0.215
Each (On a Reel of 3000)
units
Single - Surface Mount 1 - SOD-123 Silicon Junction 1V 2 - -55 °C +150 °C 2.69mm 1.6mm