12 best schottky diodes

Schottky diodes are semiconductor devices commonly used in various electronic applications, including those in the Semiconductor Products, Industrial Electrical, and Industrial Scientific fields. They have unique characteristics that distinguish them from other types of diodes:

  1. Metal-Semiconductor Junction: Schottky diodes are made by forming a metal-semiconductor junction between a metal (usually a low work function metal like aluminum or platinum) and a semiconductor material (typically silicon). This junction is responsible for their distinctive properties.

  2. Fast Switching Speed: Schottky diodes have a very fast switching speed compared to standard pn-junction diodes. This characteristic makes them suitable for high-frequency applications and high-speed rectification.

  3. Low Forward Voltage Drop: Schottky diodes have a lower forward voltage drop (typically around 0.2-0.3 volts) compared to regular silicon diodes (0.6-0.7 volts). This low voltage drop reduces power dissipation and is advantageous in applications where energy efficiency is critical.

  4. High Temperature Stability: Schottky diodes tend to perform well at elevated temperatures, which is valuable in industrial and scientific applications where temperature variations are common.

  5. Less Leakage Current: They exhibit lower reverse leakage current compared to traditional diodes, making them suitable for applications where minimizing reverse current flow is important.

Schottky diodes find application in various fields:

  • Power Supplies: Schottky diodes are used in power supplies and voltage rectification circuits to minimize power losses and improve efficiency.

  • RF (Radio Frequency) Applications: Their fast switching speeds make them suitable for high-frequency applications such as RF signal detection and mixing.

  • Photovoltaic Systems: Schottky diodes are used in solar panels to prevent the reverse flow of current from the battery back into the solar cells during low-light conditions.

  • High-Speed Data Communication: In data communication systems, Schottky diodes are used for signal rectification and protection against voltage spikes.

  • Signal Clipping and Clamping: They are used for clipping and clamping signals in various electronic circuits.

Schottky diodes are valuable components in the semiconductor industry and are widely used in industrial electrical and scientific applications where their unique characteristics provide advantages in terms of speed, efficiency, and temperature stability.

Below you can find our editor's choice of the best schottky diodes on the market
  

Schottky diodes are semiconductor devices widely used in various electronic applications due to their unique characteristics and advantages.These diodes are named after the physicist Walter H. Schottky, who played a significant role in their development.

Here are some key points about Schottky diodes:

  1. Operation: Schottky diodes are primarily constructed using a metal-semiconductor junction, unlike standard PN-junction diodes. The metal-semiconductor interface allows for faster switching and lower voltage drops compared to PN-junction diodes.

  2. Low Forward Voltage Drop: One of the primary advantages of Schottky diodes is their low forward voltage drop (VF). This property makes them suitable for applications requiring minimal voltage loss, such as power rectification and voltage clamping.

  3. Fast Switching Speed: Schottky diodes have a very fast switching speed, making them ideal for high-frequency applications. They can quickly turn on and off, making them valuable in switching power supplies, RF (radio frequency) applications, and high-speed digital circuits.

  4. High Efficiency: Due to their low VF and fast switching speed, Schottky diodes are highly efficient in power conversion applications. They waste less energy as heat compared to conventional diodes.

  5. Reverse Recovery Time: Schottky diodes have virtually no reverse recovery time, which means they do not experience the reverse recovery charge associated with PN-junction diodes. This feature makes them suitable for high-frequency applications where fast switching is essential.

  6. Temperature Sensitivity: Schottky diodes can be sensitive to temperature variations, which can affect their forward voltage drop and leakage current. Designers should consider this when using them in high-temperature environments.

  7. Applications: Schottky diodes find applications in various areas, including:

    • Power Supplies: They are used for rectification and voltage clamping in power supplies, including DC-DC converters and voltage regulators.

    • RF Applications: Schottky diodes are used in mixers, detectors, and frequency multipliers in RF circuits.

    • Clipping and Clamping: They are employed for signal clipping and clamping in communication and audio circuits.

    • Switching Applications: Schottky diodes are favored in high-speed digital circuits, where fast switching times are crucial.

    • Solar Panels: They are sometimes used as bypass diodes in photovoltaic solar panels to minimize power loss due to shading or mismatched cells.

In summary, Schottky diodes are semiconductor devices known for their low forward voltage drop, fast switching speed, and efficiency, making them valuable in a wide range of electronic applications where these properties are critical. Their unique characteristics make them particularly suitable for power conversion and high-frequency circuits.

Below you can find our editor's choice of the best schottky diodes on the market
  

BOJACK 14 Value 240 pcs Diode Assortment Kit Contain Rectifier/Fast Recovery/Schottky/Switching Diode 1N4001 1N4004 1N4007 1N5404 1N5406 1N5408 RL207 FR107 FR207 UF4007 1N5817 1N5819 1N5822 1N4148

BOJACK

Based on 355 reviews Check latest price
  • BOJACK Diode assorted kit contain 14 value 240 pcs with different current and voltage.
  • Rectifier Diodes : IN4001 (1A 50V) IN4004 (1A 400V) IN4007 (1A 1000V) IN5404 (3A 400V) IN5406 (3A 600V) IN5408 (3A 1000V) RL207 (2A 1000V),Fast Recovery Diodes : UF4007 (1A 1000V) FR107 (1A 1000V) FR207 (2A 1000V) ,Schottky Diodes : IN5817 (1A 20V) IN5819 (1A 40V) IN5822 (3A 40V), Switching Diode : IN4148 (200mA 100V)
  • The diode assorted product is easy to store ,Use an anti-static bag with a clear mark for packaging,not easy to damage.
  • Lead-Free / RoHS Compliant Electronics Component.
  • This product is widely used in product development, student experiments, maintenance, production, etc.

User questions & answers

Question: Will these work on doorbells
Answer: If you have some sort of DC requirement whether homebrew or not... might work if you design the circuit correct for the required DC input for your DC doorbell device. Thinking a doorbell camera won't need much for current and you can wire in parallel if required too. Not certain why though, please elaborate.

AKOAK 15amp Diode Axial Schottky Blocking Diodes for Solar Cells Panel,15SQ045 Schottky(20Pcs)

AKOAK

Based on 320 reviews Check latest price

Product description

Meterial:Si

Maximum Average Forward Current: 15 A MP

Forward Current (at DC10A): 0.55V

Maximum DC Blocking Voltage: 45V



Package Include:

20 x Bypass / Blocking Diode

User questions & answers

Question: looking for diode 15sq050 do you supply them
Answer: No
Question: Can I use these diodes to prevent backfeed on a 12vdc trickle charger
Answer: Yes, no problem at all - expect 0.6 v voltage drop across diode
Question: How do you tell which way the current go
Answer: the positive power source goes to the black end (anode), the striped end (cathode) goes to the load. Juice flows from the batt + to black end of diode, then from stripe end of diode to the device being powered, then back to the batt- . The striped end will be more negative or there will be no flow. Think of it as a check valve. current flows from positive to negative -- from black end to striped end. Don't be confused by people who say that electrons flow from negative to positive-- while this is true, "conventional" current flow is described as positive to negative. Batt+ to Black end(anode), striped end(cathode) to load, to Batt-.
Question: What is the maximum forward voltage for this diode
Answer: Do you mean forward voltage or forward voltage drop? It looks like forward voltage would make sense to be anything under it's max blocking voltage. The .55v in the specs appears to be the max forward voltage drop.

BOJACK 1N5817 Schottky Diode 1 A 20 V DO-41 Axial 5817 1 amp 20 Volt Electronic Silicon Diodes(Pack of 125 Pieces)

BOJACK

Based on 18 reviews Check latest price

Product description

BOJACK Schottky DIODE



Part Number: IN5817

Package Case: BJ-17

QTY: 125 PCS

Lead-Free / RoHS Compliant Electronics Component.

This product is widely used in product development, student experiments, maintenance, production, etc.

  • IN5817 Data: Forward rectified current:1A,Maximum recurrent peak reverse voltage:20V
  • Feature:Low forward voltage/High current capability/Low leakage current/High surge capability
  • Case:Molded plastic use UL 94V-0 recognized Flame retardant epoxy
  • Terminals:Axial leads, solderable per MIL-STD-202
  • Polarity:Color band denotes cathode

User questions & answers

Question: will this diode work on marine applications? Nav/Anchor switch? Thanks if anyone knows
Answer: No. Not because of the 20v clamping voltage, but because of the avalanche energy. I believe you're using as a clamp for a 'load dump transient based on your question. A zener of this size will tunnel then avalanche in the millijoule range or smaller. Go for the larger TVS (transient voltage suppressor).

Tnisesm 20 Pcs Schottky Rectifiers Diode, Diode Axial Kit 10SQ050, 15SQ045, 20SQ045 for Solar Panel SQ - 3S

Tnisesm

Based on 3 reviews Check latest price

Product description

Tnisesm 10SQ050, 15SQ045, 20SQ045 SCHOTTKY BARRIER RECTIFIER Diode Kit

Part Number: 10SQ050

Forward rectified current:10A,

Maximum recurrent peak reverse voltage:50V

Part Number: 15SQ045

Forward rectified current:15A,

Maximum recurrent peak reverse voltage:45V

Part Number: 20SQ045

Forward rectified current:20A,

Maximum recurrent peak reverse voltage:45V

Package Include:

5 Pcs x 10SQ050 Diode

10 Pcs x 15SQ045 Diode

5 Pcs x 20SQ045 Diode

  • 10SQ050, 15SQ045, 20SQ045 SCHOTTKY BARRIER RECTIFIER Diode Kit
  • Lead-Free / RoHS Compliant Electronics Component.
  • Low leakage and forward voltage drop;Low power loss, high efficiency.
  • All products are tested for stability, consistency and reliability. Ensure product excellence.
  • Widely used in product development, student experiments, maintenance, production, etc.

25pcs) 15SQ045 Schottky Diodes 15A 45V, Diode Axial Schottky Blocking Diodes for Solar Cells Panel

Based on 50 reviews Check latest price

Product description

Meterial:Si

Maximum Average Forward Current: 15 A MP

Forward Current (at DC10A): 0.55V

Maximum DC Blocking Voltage: 45V

Speed: Fast Recovery = 200mA (Io)

Current Reverse Leakage @ Vr: 500µA @ 45V



Package Include:

25 x 15SQ045 Schottky Diodes

  • Package includes 25 pcs 15SQ045 Schottky Diodes.
  • Current Average Rectified (Io): 15 Amperes.
  • Forward Current (at DC10A): 0.55V.
  • Voltage DC Reverse (Vr) (Max): 45V.
  • ESD Safe Packaging and are Authentic/Genuine Components.

10pcs New 10SQ050 10A 50V Schottky Rectifiers Diode for Solar Panel

Based on 42 reviews Check latest price

Product description

New 10SQ050 10A 50V Schottky Rectifiers Diode for solar panel

  • New 10SQ050 10A 50V Schottky Rectifiers Diode for solar panel

User questions & answers

Question: Would this work if I want to use for 6v solar battery charging system. So battery doesn’t drain in reverse direction at night time
Answer: These will work fine, so long as you are not going over 10 amps with your setup. I would consider 1 per panel your safest bet

Chanzon Fast Switching/Schottky/Rectifier Diode Assorted Kit (200pcs 14 Values 1N4001 1N4004 1N4007 RL207 1N5404 1N5406 1N5408 UF4007 FR107 FR207 1N5817 1N5819 1N5822 1N4148) Electronic Assortment

CHANZON

Based on 444 reviews Check latest price

Product description

Diode Assortment Kit (14 Part numbers, Total 200 pcs)



Brand: Chanzon





Rectifier Diode



20 * 1N4001 (1A 50V)

20 * 1N4004 (1A 400V)

20 * 1N4007 (1A 1000V)

10 * RL207 (2A 1000V)

10 * 1N5404 (3A 400V)

10 * 1N5406 (3A 600V)

10 * 1N5408 (3A 1000V)



Fast Recovery Diode

10 * UF4007 (1A 1000V)

10 * FR107 (1A 1000V)

10 * FR207 (2A 1000V)



Switching Diodes

30 * 1N4148 (200mA 100V)



Schottky Diodes

10 * 1N5817 (1A 20V)

20 * 1N5819 (1A 40V)

10 * 1N5822 (3A 40V)



Note:

Pack in a ESD Bag with Main Specs Label, for Long Time Protection and Indetification.



  • Lead-Free / RoHS Compliant Electronics Component / Axial Silicon Diodes Set for Arduino DIY Projects
  • Total Pack of 200 Pieces (14 Part Numbers) with different current and Voltage
  • Rectifier Diodes : 1N4001 (1A 50V) x 20 | 1N4004 (1A 400V) x 20 | 1N4007 (1A 1000V) x 20 | RL207 (2A 1000V) x 10 | 1N5404 (3A 400V) x 10 | 1N5406 (3A 600V) x 10 | 1N5408 (3A 1000V) x 10
  • Fast Recovery Diodes : UF4007 (1A 1000V) x 10 | FR107 (1A 1000V) x 10 | FR207 (2A 1000V) x 10
  • Switching Diode : 1N4148 (200mA 100V) x 30 | Schottky Diodes : 1N5817 (1A 20V) x 10 | 1N5819 (1A 40V) x 20 | 1N5822 (3A 40V) x 10

User questions & answers

Question: When it says "20v" does that mean it requires 20v, or that 20v is the maximum
Answer: It means it will support 20 volts when reversed biased, any voltage larger and it will damage the diode as long as your talking about a normal diode. If a zener it needs at least 20 volts to operate normally
Question: Which side is the positive side or “in”. Newbie here
Answer: The way I learned this. "Point to the cat on the ground." In the schematic, the diode has a triangle pointing, which always (read: 99% of the time, except in specialized circuits) POINTs to the CAThode, which is GROUND.

WayinTop 25pcs 15SQ045 Schottky Diodes, 15A 45V Diode Axial Schottky Blocking Diodes for Solar Cells Panel Anti-backflow Diode

WayinTop

Based on 23 reviews Check latest price

Product description

WayinTop: Your Top Way to Inspiration.



Specification:

Diode type: Schottky

Voltage DC Reverse (Vr) (Max): 45V

Current Average Rectified (Io): 15A

Forward Current (at DC10A): 0.55V

Speed: fast recovery = <500ns,> 200mA (Io)

Current reverse leakage: 500µA 45V

Package/Shell: R6, axial

Package Type: R-6

Operating temperature: -55°C~150°C





Package Included:

25 x 15SQ045 15A 45V Diode Axial Schottky Blocking Diodes

  • 【15SQ045 Schottky Diodes】Current Average Rectified (Io): 15 Amperes; Forward Current (at DC10A): 0.55V; Voltage DC Reverse (Vr) (Max): 45V.
  • 【Material】Silicon; High surge current capability; its shell is made of molded plastic, the end is electroplated axial pins, and has a cathode leading end for easy identification.
  • 【Feature】Polarity: Cathode Band; Low leakage and forward voltage drop ;Low power loss, high efficiency.
  • 【Housing】Made of molded plastic, UL 94V-0 approved flame retardant epoxy.
  • 【Wide Application】For use in low voltage, over voltage protection, high frequency inverter, free wheeling, and polarity protection applications.

BOJACK 10 Values 300 pcs Rectifier Diodes 1N4001 1N4002 1N4003 1N4004 1N4005 1N4006 1N4007 Schottky Diodes 1N5817 1N5818 1N5819 Assortment Kit

BOJACK

Based on 79 reviews Check latest price

Product description

BOJACK 10 Values 300 pcs High Quality Diodes Assortment Kit



Package List:



Rectifier Diode:

30 Pcs * 1N4001 (1A 50V)

30 Pcs * 1N4002 (1A 100V)

30 Pcs * 1N4003 (1A 200V)

30 Pcs * 1N4004 (1A 400V)

30 Pcs * 1N4005 (1A 600V)

30 Pcs * 1N4006 (1A 800V)

30 Pcs * 1N4007 (1A 1000V)



Schottky Diodes:

30 Pcs * 1N5817 (1A 20V)

30 Pcs * 1N5818 (1A 30V)

30 Pcs * 1N5819 (1A 40V)



This diode is Low leakage, forward voltage drop, high efficiency and

low power loss,widely used in product development, student experiments,

maintenance, production, etc.

  • BOJACK 10 values 300 pcs Rectifier Diode Assorted kit with different current and voltage.
  • Rectifier Diodes : IN4001 (1A 50V),IN4002 (1A 100V),IN4003 (1A 200V),IN4004 (1A 400V),IN4005 (1A 600V),IN4006 (1A 800V),IN4007 (1A 1000V).Schottky Diodes : IN5817 (1A 20V), IN5817 (1A 30V),IN5819 (1A 40V) .
  • The diode assorted product is easy to store ,Use an anti-static bag with a clear mark for packaging,not easy to damage.
  • Lead-Free / RoHS Compliant Electronics Component.
  • This product is widely used in product development, student experiments, maintenance, production, etc.

Pack of 20 Pieces) Chanzon 15SQ045 Schottky Barrier Rectifier Bypass Blocking Diodes 15A 45V R-6 Axial 15 Amp 45 Volt for Solar Cell Panel

CHANZON

Based on 134 reviews Check latest price

Product description

Please refer to image 2-7 for the specification datasheet.







Product Type: SCHOTTKY DIODE



Brand: Chanzon



Part Number: 15SQ045



Package Case: R-6



QTY: 20





Note:

Pack in a ESD Bag with Main Specs Label, for Long Time Protection and Indetification.



  • Part Number: 15SQ045 / Forward Current : 15 A / Maxixum Repetitive Peak Reverse Voltage : 45 V
  • Lead-Free / RoHS Compliant Electronics Component / Through Hole
  • High Forward Surge Current Capability / High Temperature Soldering / Low Power Loss,High Efficiency
  • See Picture 2-7 for Specifications Datasheet
  • Pack in a ESD Bag with Main Specs Label, for Long Time Protection and Indetification.

User questions & answers

Question: stupid question.... which way does the volts flow & which way does it block voltage? Does energy flow black to silver or other way round
Answer: Silver side is the cathode. Current through a diode will only flow from anode (black side) to cathode (silver side). It blocks current from flowing the opposite direction.

Pack of 100 Pieces) Chanzon 1N5819 Schottky Barrier Rectifier Diodes 1A 40V DO-41 (DO-204AL) Axial 5819 IN5819 1 Amp 40 Volt

CHANZON

Based on 26 reviews Check latest price

Product description

Please refer to image 2-7 for the specification datasheet.







Product Type: SCHOTTKY DIODE



Brand: Chanzon



Part Number: 1N5819



Package Case: DO-41



QTY: 100





Note:

Pack in a ESD Bag with Main Specs Label, for Long Time Protection and Indetification.



  • Part Number: 1N 5819 / Forward Current : 1 A / Maxixum Repetitive Peak Reverse Voltage : 40 V
  • Lead-Free / RoHS Compliant Electronics Component / Through Hole
  • High Forward Surge Current Capability / High Temperature Soldering / Low Power Loss,High Efficiency
  • See Picture 2-7 for Specifications Datasheet
  • Pack in a ESD Bag with Main Specs Label, for Long Time Protection and Indetification.

User questions & answers

Question: What size do I need to put between 1.5watt solar panel and a 12v 12ah battery
Answer: A 12v 1.5 watt solar panel will put out about .13 amps. the 1N5819's are rated at 40V 1A so they should work fine. Be aware that a 1.5w panel could take 100hr's or more of sunshine to charge that battery. It may work to maintain charge between uses though.

Pack of 5pcs) MBR40200PT ASEMI TO-247/3P Package Schottky Barrier Diode 40a 200v with Heat Sink for Electric Fan

Based on 2 reviews Check latest price
  • 【Type No.】: MBR40200PT Schottky diode, other models in the same series are MBR40100PT/MBR40150PT
  • 【Chip】: High-quality large chip, high-precision integrated test line to monitor electrical parameters
  • 【Features】: Laser printing is not easy to fade, oxygen-free copper pins have good conductivity
  • 【Package】: 5pcs packed by exquisite environmentally friendly boxes or bags, which can not only reduce damage during transportation, but also be recycled and reused
  • 【Applications】: Switching power supply, LED lights, integrated circuit, mobile communications, computers, industrial automation control equipment, automotive electronics , LCD television, IoT , smart home , medical equipment , cooker and other small appliances.

Product features

Marking

  • Laser marking, not easy to fade
  • Epoxy resin molding
  • Good insulation stability.

Chips

  • Enlarged chip with Taiwan technology
  • Good reliability
  • Prevent electrical decay.

Pins

  • The pins are made of oxygen-free copper material
  • Small internal resistance
  • Good conductivity.

Size
Specifications
Application field

  • Asemi Technology Co., Ltd. is a national high-tech company integrating R&D, manufacturing and sales. The company has been focusing on the R&D and production of bridge rectifiers, power ICs, Schottky, fast recovery diodes and automotive electronics for more than 12 years.
  • ASEMI products are widely used in switching power supplies, aerospace technology, LED lights, integrated circuits, mobile communications, computers, industrial automation control equipment, automotive electronics, LCD TVs, IoT, smart homes, medical equipment, cooking utensils and other small equipment.

Latest Reviews

View all