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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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In Stock STMicroelectronics Switching Diode, Isolated, 45 A, 4-Pin 1200 V ISOTOP STTH9012TV2 RS Stock No. 810-7345 Mfr. Part No. STTH9012TV2 Subtotal (1 unit) £19.19(exc. VAT) £19.19/unit Quantity	STMicroelectronics	Isolated	-	45A	Switching Diode	Panel	-	-	Silicon Junction	-	ISOTOP	-	-	4	-	-65°C	150°C	38.2mm	1.9V	1200V	-	420A	50ns	-	-	12.2mm	-	No	-
In Stock onsemi Silicon Junction, Single, 1 A, 2-Pin 50 V SMA S1A RS Stock No. 739-0537 Mfr. Part No. S1A Subtotal (1 pack of 10 units) £0.74(exc. VAT) £0.074/unit Quantity	onsemi	Single	-	1A	Silicon Junction	Surface	-	-	Silicon Junction	-	SMA	-	-	2	-	-65°C	150°C	4.6mm	1.1V	50V	-	30A	3ns	-	-	2.4mm	-	No	-
In Stock onsemi Silicon Junction, Single, 3 A, 2-Pin 50 V DO-201AD RS Stock No. 774-3329 Mfr. Part No. 1N5400G Subtotal (1 pack of 10 units) £1.84(exc. VAT) £0.184/unit Quantity	onsemi	Single	-	3A	Silicon Junction	Through Hole	-	-	Silicon Junction	-	DO-201AD	-	-	2	-	-65°C	150°C	9.5mm	1V	50V	-	200A	-	-	-	9.5mm	-	No	-
In Stock Vishay Silicon Junction, Single, 300 mA, 2-Pin 100 V DO-35 1N4448TAP RS Stock No. 700-3680 Mfr. Part No. 1N4448TAP Subtotal (1 pack of 250 units) £13.50(exc. VAT) £0.054/unit Quantity	Vishay	Single	-	300mA	Silicon Junction	Through Hole	-	-	Silicon Junction	-	DO-35	-	-	2	-	-65°C	175°C	3.9mm	1V	100V	500mW	2A	8ns	-	-	1.7mm	-	No	-
In Stock Vishay Silicon Junction, Single, 300 mA, 2-Pin 75 V DO-35 1N4148-TAP RS Stock No. 700-3674 Mfr. Part No. 1N4148-TAP Subtotal (1 pack of 250 units) £23.25(exc. VAT) £0.093/unit Quantity	Vishay	Single	-	300mA	Silicon Junction	Through Hole	-	-	Silicon Junction	-	DO-35	-	-	2	-	-65°C	175°C	3.4mm	1V	75V	500mW	2A	4ns	-	-	1.7mm	1N4148	No	-
Last RS stock Vishay Silicon Junction, Single, 250 mA, 2-Pin 250 V MicroMELF BAV303-TR RS Stock No. 700-3867 Mfr. Part No. BAV303-TR Subtotal (1 pack of 100 units) £3.90(exc. VAT) £0.039/unit Quantity	Vishay	Single	-	250mA	Silicon Junction	Surface	-	-	Silicon Junction	-	MicroMELF	-	-	2	-	-65°C	175°C	2mm	1V	250V	-	1A	50ns	-	-	1.2mm	BAV303	No	-
In Stock Vishay Silicon Junction, Single, 200 mA, 2-Pin 250 mV DO-35 BAV21-TAP RS Stock No. 700-3863 Mfr. Part No. BAV21-TAP Subtotal (1 pack of 100 units) £4.30(exc. VAT) £0.043/unit Quantity	Vishay	Single	-	200mA	Silicon Junction	Through Hole	-	-	Silicon Junction	-	DO-35	-	-	2	-	-65°C	175°C	3.9mm	1V	250mV	250mW	1A	50ns	-	-	1.7mm	-	No	-
In Stock DiodesZetex Switching Diode, Single, 1 A, 2-Pin 600 V SMB S1JB-13-F RS Stock No. 751-4767 Mfr. Part No. S1JB-13-F Subtotal (1 tape of 100 units) £7.00(exc. VAT) £0.07/unit Quantity	DiodesZetex	Single	-	1A	Switching Diode	Surface	-	-	Silicon Junction	-	SMB	-	-	2	-	-65°C	150°C	4.57mm	1.1V	600V	-	30A	3ns	-	-	2.3mm	S1JB	No	-
In Stock onsemi Silicon Junction, Series, 215 mA, 3-Pin 100 V SOT-23 BAV99LT3G RS Stock No. 690-0016 Mfr. Part No. BAV99LT3G Subtotal (1 pack of 25 units) £1.10(exc. VAT) £0.044/unit Quantity	onsemi	Series	-	215mA	Silicon Junction	Surface	-	-	Silicon Junction	-	SOT-23	-	-	3	-	-65°C	150°C	2.9mm	1.25V	100V	225mW	2A	6ns	-	-	0.94mm	-	No	-
In Stock onsemi Silicon Junction, Single, 4 A, 2-Pin 600 V DO-201AD MUR460G RS Stock No. 774-3631 Mfr. Part No. MUR460G Subtotal (1 pack of 10 units) £2.28(exc. VAT) £0.228/unit Quantity	onsemi	Single	-	4A	Silicon Junction	Through Hole	-	-	Silicon Junction	-	DO-201AD	-	-	2	-	-65°C	175°C	9.5mm	1.28V	600V	-	110A	75ns	-	-	9.5mm	-	No	-
In Stock Infineon Silicon Junction, Single, 80 A, 2-Pin 650 V TO-220 RS Stock No. 145-8760 Mfr. Part No. IDP40E65D2XKSA1 Subtotal (1 tube of 50 units) £55.50(exc. VAT) £1.11/unit Quantity	Infineon	Single	-	80A	Silicon Junction	Through Hole	-	-	Silicon Junction	-	TO-220	-	-	2	-	-40°C	175°C	10.2mm	2.2V	650V	200W	250A	83ns	-	-	15.95mm	-	No	-
In Stock Vishay Silicon Junction, Single, 2 A, 2-Pin 1 kV DO-214AC SA2M-E3/5AT RS Stock No. 812-9275 Mfr. Part No. SA2M-E3/5AT Subtotal (1 tape of 100 units) £8.60(exc. VAT) £0.086/unit Quantity	Vishay	Single	-	2A	Silicon Junction	Surface	-	-	Silicon Junction	-	DO-214AC	-	-	2	-	-55°C	150°C	4.5mm	1.1V	1kV	-	55A	1.5μs	-	-	2.09mm	SA2M	No	-
In Stock onsemi Silicon Junction, Single, 2 A, 2-Pin 200 V DO-214AA RS Stock No. 545-2153P Mfr. Part No. MURS120T3G Subtotal 1 unit (supplied on a continuous strip) £0.31(exc. VAT) £0.31/unit Quantity	onsemi	Single	-	2A	Silicon Junction	Surface	-	-	Silicon Junction	-	DO-214AA	-	-	2	-	-65°C	175°C	4.32mm	875mV	200V	-	40A	35ns	-	-	2.13mm	-	No	-
In Stock onsemi Diode, Single, 1 A, 2-Pin 600 V DO-214AC MRA4005T3G RS Stock No. 545-2462 Mfr. Part No. MRA4005T3G Subtotal (1 pack of 50 units) £3.85(exc. VAT) £0.077/unit Quantity	onsemi	Single	-	1A	Diode	Surface	-	-	Silicon Junction	-	DO-214AC (SMA)	-	-	2	-	-55°C	175°C	4.32mm	1.18V	600V	-	30A	-	-	-	2mm	-	No	-
In Stock DiodesZetex Switching Diode, Common Cathode, 40 A, 3-Pin 300 V TO-220 SBR40U300CT RS Stock No. 751-4916 Mfr. Part No. SBR40U300CT Subtotal (1 unit) £2.56(exc. VAT) £2.56/unit Quantity	DiodesZetex	Common Cathode	-	40A	Switching Diode	Through Hole	-	-	Silicon Junction	-	TO-220	-	-	3	-	-65°C	175°C	10.66mm	890mV	300V	-	235A	50ns	-	-	16.51mm	-	No	-
In Stock Vishay Silicon Junction, Single, 300 mA, 2-Pin 100 V Quadro Melf LS4148-GS08 RS Stock No. 443-3690 Mfr. Part No. LS4148-GS08 Subtotal (1 pack of 50 units) £7.15(exc. VAT) £0.143/unit Quantity	Vishay	Single	-	300mA	Silicon Junction	Surface	-	-	Silicon Junction	-	Quadro Melf	-	-	2	-	-65°C	175°C	3.5mm	1V	100V	500mW	2A	4ns	-	-	1.5mm	LL4148	No	-
Last RS stock Vishay Switching Diode, Single, 16 A, 2-Pin 500 V TO-220AC FES16HT-E3/45 RS Stock No. 812-2173 Mfr. Part No. FES16HT-E3/45 Subtotal (1 pack of 5 units) £3.22(exc. VAT) £0.644/unit Quantity	Vishay	Single	-	16A	Switching Diode	Through Hole	-	-	Silicon Junction	-	TO-220AC	-	-	2	-	-65°C	150°C	10.54mm	1.5V	500V	-	250A	50ns	-	-	15.32mm	-	No	-
In Stock Vishay Silicon Junction, Single, 0.5 A, 2-Pin 400 V DO-213AA EGL34G-E3/98 RS Stock No. 812-2054 Mfr. Part No. EGL34G-E3/98 Subtotal (1 tape of 50 units) £30.70(exc. VAT) £0.614/unit Quantity	Vishay	Single	-	0.5A	Silicon Junction	Surface	-	-	Silicon Junction	-	DO-213AA	-	-	2	-	-65°C	175°C	3.68mm	1.35V	400V	-	10A	50ns	-	-	1.68mm	-	No	-
In Stock onsemi Silicon Junction, Single, 1 A, 2-Pin 50 V DO-41 1N4002RLG RS Stock No. 781-5565 Mfr. Part No. 1N4002RLG Subtotal (1 pack of 100 units) £5.60(exc. VAT) £0.056/unit Quantity	onsemi	Single	-	1A	Silicon Junction	Through Hole	-	-	Silicon Junction	-	DO-41	-	-	2	-	-65°C	175°C	54.9mm	1.1V	50V	-	30A	-	-	-	5.2mm	-	No	-
In Stock Vishay Silicon Junction, Single, 300 mA, 2-Pin 50 V SOD-80 LS4151GS08 RS Stock No. 813-0761 Mfr. Part No. LS4151GS08 Subtotal (1 pack of 250 units) £13.75(exc. VAT) £0.055/unit Quantity	Vishay	Single	-	300mA	Silicon Junction	Surface	-	-	Silicon Junction	-	SOD-80	-	-	2	-	-65°C	175°C	2.7mm	1V	50V	500mW	2A	4ns	-	-	1.6mm	LS 4151	No	-