Switching Diodes

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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Fairchild Small Signal Diode, 300mA 100V, 2-Pin DO-35 1N4148

Datasheets:

MYR0.168

Each (In a Pack of 250)

Fairchild Semiconductor

Single

300mA

Through Hole

100V

DO-35

Silicon Junction

4pF

+175 °C

4.56mm

1.91 (Dia.) x 4.56mm

Nexperia Dual Switching Diode, Common Cathode, 225mA 200V, 3-Pin SOT-23 BAV23C,215

Datasheets:

MYR0.605

Each (Supplied on a Reel)

Nexperia

Common Cathode

225mA

Surface Mount

200V

SOT-23

Silicon Junction

1.25V

2pF

-65 °C

+150 °C

3mm

1.4mm

1.1mm

3 x 1.4 x 1.1mm

onsemi Switching Diode, 2-Pin DO-41 1N4002G

Datasheets:

MYR0.463

Each (In a Pack of 50)

onsemi

Single

Through Hole

DO-41

Silicon Junction

1.1V

-65 °C

+175 °C

5.2mm

2.7 (Dia.) x 5.2mm

Diodes Inc Switching Diode, 1A 50V, 2-Pin DO-41 1N4001-T

Datasheets:

MYR0.194

Each (In a Pack of 250)

DiodesZetex

Single

Through Hole

50V

DO-41

15pF

-65 °C

+150 °C

5.21mm

2.72 (Dia.) x 5.21mm

Vishay Switching Diode, 300mA 75V, 2-Pin DO-35 1N4148-TAP

Datasheets:

MYR0.179

Each (In a Pack of 250)

Vishay

Single

300mA

Through Hole

75V

DO-35

Silicon Junction

4pF

-65 °C

+175 °C

3.4mm

1.7mm

1.75 (Dia.) x 3.4mm

onsemi Diode, 2-Pin DO-201AD 1N5408G

Datasheets:

MYR1.302

Each (In a Pack of 10)

onsemi

Single

Through Hole

DO-201AD

Silicon Junction

-65 °C

+150 °C

9.5mm

5.3 (Dia.) x 9.5mm

onsemi Switching Diode, 2-Pin DO-41 1N4004G

Datasheets:

MYR0.453

Each (In a Pack of 50)

onsemi

Single

Through Hole

DO-41

Silicon Junction

1.1V

-65 °C

+175 °C

5.2mm

2.7 (Dia.) x 5.2mm

onsemi Switching Diode, 2-Pin DO-41 1N4003G

Datasheets:

MYR0.694

Each (In a Pack of 50)

onsemi

Single

Through Hole

DO-41

Silicon Junction

1.1V

-65 °C

+175 °C

5.2mm

2.7 (Dia.) x 5.2mm

Diodes Inc Switching Diode 100V, 2-Pin SOD-123 1N4148W-7-F

Datasheets:

MYR0.09

Each (On a Reel of 3000)

DiodesZetex

Single

Surface Mount

100V

SOD-123

Silicon Junction

1.25V

onsemi Diode, 2-Pin DO-201AD MUR460G

Datasheets:

MYR2.356

Each (In a Pack of 10)

onsemi

Single

Through Hole

DO-201AD

Silicon Junction

1.28V

-65 °C

+175 °C

9.5mm

5.3 (Dia.) x 9.5mm

Vishay Small Signal Diode, 2-Pin SOD-123 1N4148W-E3-08

Datasheets:

MYR0.149

Each (On a Reel of 3000)

Vishay

Single

Surface Mount

SOD-123

Silicon Junction

-55 °C

+150 °C

2.85mm

1.7mm

1.35mm

2.85 x 1.7 x 1.25mm

Nexperia Logic Gate, 14-Pin SO 74HCT86D,652

Datasheets:

MYR0.673

Each (In a Tube of 57)

Nexperia

Surface Mount

-40 °C

+125 °C

8.75mm

4mm

1.45mm

8.75 x 4 x 1.45mm

onsemi Switching Diode, 2-Pin TO-220AC MUR1520G

Datasheets:

MYR4.91

Each

onsemi

Single

Through Hole

TO-220AC

Silicon Junction

1.05V

-65 °C

+175 °C

10.29mm

4.82mm

9.27mm

9.27 x 10.29 x 4.82mm

Vishay Switching Diode, 300mA 75V, 2-Pin DO-35 1N4448TR

Datasheets:

MYR0.115

Each (In a Pack of 200)

Vishay

300mA

Through Hole

75V

DO-35

Silicon Diode

ROHM Switching Diode, Isolated, 3A 200V, 2-Pin SOD-128 RF302LAM2STFTR

Datasheets:

MYR1.387

Each (On a Reel of 3000)

ROHM

Isolated

Surface Mount

200V

SOD-128

HY Electronic Corp General Purpose Diode, 3A 1000V, 2-Pin DO-27 1N5408G

Datasheets:

MYR0.479

Each (Supplied as a Tape)

HY Electronic Corp

Single

Through Hole

1000V

DO-27

Diodes Inc Switching Diode, 1A 400V, 2-Pin SMA US1G-13-F

Datasheets:

MYR1.055

Each (In a Pack of 50)

DiodesZetex

Single

Surface Mount

400V

SMA

Silicon Junction

1.3V

20pF

-65 °C

+150 °C

4.6mm

2.92mm

2.1mm

4.6 x 2.92 x 2.1mm

IXYS Diode, 2-Pin TO-220AC DSEP12-12B

Datasheets:

MYR9.339

Each (In a Tube of 50)

IXYS

Single

Through Hole

TO-220AC

Silicon Junction

3.25V

-55 °C

+175 °C

10.66mm

4.82mm

16.51mm

10.66 x 4.82 x 16.51mm

Vishay Switching Diode, 300mA, 2-Pin MiniMELF LL4148-GS18

Datasheets:

MYR0.17

Each (In a Pack of 250)

Vishay

Single

300mA

Surface Mount

MiniMELF

-65 °C

+175 °C

3.7mm

1.6mm

3.7 x 1.6 x 1.6mm

Vishay Switching Diode, 250mA 250V, 2-Pin Quadro Melf BAV203-GS08

Datasheets:

MYR0.142

Each (On a Reel of 2500)

Vishay

Single

250mA

Surface Mount

250V

Quadro Melf

Silicon Junction

-65 °C

+175 °C

3.5mm

1.7mm

1.5mm

3.5 x 1.7 x 1.5mm

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Switching Diode

Where are Switching Diodes used?

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