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Easy Design of Power Supplies with our High Voltage Diodes

Flyer HV Diodes

Our high voltage rectifiers allow for easy design of power supplies up to several kilovolts. This product range includes single diodes with fixed voltage rating and standard to ultrafast reverse recovery. Very flexible solutions are available in the avalanche rectifiers, which can be stacked in order to get any voltage range required.

Features and Benefits are:

  • Large Clearance and Creepage
  • Easy Assembly
  • Standard, Fast and Ultrafast Recovery
  • Controlled Avalanche Rectifiers
  • Available in Hockey Puck, Axial Lead, Cylinder, SMD Packages
  • Stackable to build High Voltage Cascades

Applications can be:

  • Paper, Film and Foil Treatment
  • Corona Discharge Treatment
  • Plasma Generation
  • Surface Preconditioner
  • Laser Power Supply
  • X-Ray Generators
  • Electrostatic Dust Removal
  • Microwave Generators

For more information please download our new HV Diode Flyer. It contains all the necessary information and shows the partnumbers available together with their parameters. More detailed information about every product including the data sheets can be found on our website www.diotec.com. Just type in the partnumber into the quickfinder on our homepage.

New Application Note for Industrial Lighting Applications

application note industrial lighting

Discover our latest application note for Industrial Lighting Applications. We offer a wide range of silicon based, power discrete components like diodes and bridge rectifiers. Additionally, we also offer a new product portfolio of MOSFETs and linear voltage regulators fitting perfectly into a broad range of industrial lighting applications.

As we all know, lighting is an essential element in our present world. It plays a decisive role in our daily lives, right from low power indoor lighting at home or offices, to mid and high power outdoor lighting, industrial and horticulture lighting systems. Lighting accounts for about 15% of global electricity consumption.

A new era came with the light emitting diodes (LED). They consume little electricity, are long lasting, versatile and contain no toxic substances. LEDs have been successful in replacing the traditional lighting sources like fluorescent, Halogen, HID lamps and in many other high density lighting applications. Other intelligent technologies such as digital lighting control systems and smart lighting solutions are emerging in the market, further ensuring an increase in efficiency, greater energy savings and thus lower the carbon emissions. The discrete components always provides flexibility in choosing the perfect matching based on the circuit requirements. By choosing the best suited semiconductor components in the design, power losses decrease and energy savings can be pushed even further. Hence, the selection of the right components can also boost-up the overall performance.

For more information regarding our Industrial Lighting Solutions, please download the application note here.

BCP53/BCP56 Series - Bipolar Power Transistor in SOT-223 Package

Meet our new BCP53/BCP56 Series! The BCP5 series is a family of NPN and PNP transistors in the powerful SOT-223 package. They feature a Collector current of 1A, a very low saturation voltage of 0.5V and a Collector-Emitter voltage of 80V. The BCP53 is the complementary PNP version of the NPN type BCP56. The parts are offered in three current gain groups -6/-10/-16. Applications are power amplifiers and driver stages.

New Application Note "Industrial Motor Control and Drives"

Our new application note for Industrial Motor Control and Drives is now available online. It contains dedicated power semiconductors for the entire inverter circuit starting from the input rectifier, via the brake chopper to the output inverter, and also includes bootstrap diodes, TVS gate protection and active clamping devices.

For the first time to public, we show in this application note our new range of Power MOSFETs and Voltage Regulators. These parts are planned to be available towards the end of this year. Curious? Please download the application note here and check out this exciting new application note for yourself!

BYG23T: Diotec's Avalanche Rated 1300V Bootstrap Diode

Discover our bootstrap diode BYG23T in SMA package, well suited for high-side floating gate driver circuits. The major challenge here is to select a robust device with respect to high voltage peaks during low side MOSFET or IGBT turn-off, as well as forward surge currents during re-charging of the storage capacitor. High frequency operation is state-of-the-art in these applications.

The BYG23T features an avalanche rating of 5mJ with breakdown voltage of 1350V and a very low reverse recovery time of 75ns. Repetitive peak forward current rating is 3A, and average forward current 1A.

Various half-bridge gate driver circuits are currently available in the market with integrated bootstrap diodes. The total power dissipation of such gate driver IC is the combination of gate driver losses and the internal bootstrap diode losses. The difficulty with this circuit is the operation at higher frequencies and load capacitance applications, where the power losses in the internal bootstrap diode dominates the overall power dissipation.

An external bootstrap diode, even if in parallel with the internal one, can significantly overcome the problem of excessive power losses in the driver IC. A stand-alone operation is of course possible as well.

Diotec at electronica India 2019

Diotec Semiconductor will again participate at electronica India 2019. The international trade fair is Indias leading platform for electronic components, systems, applications and solutions. It is taking place from September 25 to 27 at Greater Noida exhibition hall in Delhi.

The main topic of our booth will be our 3rd Generation Schottky Technology. Diotec's -3G Schottky Technology encompasses high power handling capability at small package outlines and offers state-of-the-art performance in the field of Schottky rectifiers. Stop by for a visit in hall 10 at booth EF15 if you want to learn more about our -3G Schottky Technology.

You can also watch a live demo at our booth, where we show a low device count precision power supply for micro controllers and sensors.

We are looking forward to your visit in hall 10 at our booth EF15!

SBT1045-3G - An Excellent Choice for Output Rectification in LED Drivers

Flyer 3G Schottky Consumer

We are pleased to introduce the SBT1045-3G, the upcoming member of our 3rd generation Schottky family. It comes in a TO-220AC power package and features a repetitive peak reverse voltage of 45V with 10A of average forward current rating. It offers lower power losses both in forward and reverse and is dedicated for a high level of efficiency.

Typical applications include output rectification in DC/DC converters and power supplies, polarity protection and free-wheeling diodes. The SBT1045-3G is an excellent option for output rectification in LED drivers.

Here the main parameters of this part under typical application conditions of an output rectifier:

Vf typ 390mV at If = 10A and Tj = 125°C
Ir typ 10mA at Vr = 5V and Tj = 125°C

First samples are available from September; they can be ordered already now at our orderconfirmation.

New Series about 3rd Generation Schottky Technology Part 5/5: Products for Lighting Applications

Flyer 3G Schottky Consumer

Diotec's -3G Schottky Technology encompasses high power handling capability at small package outlines. It offers state-of-the-art performance in the field of Schottky Rectifiers. Reduced forward voltage Vf and low reverse leakage current Ir are two common features of all these new devices.

Lighting is an essential element in our present world. It plays a decisive role in our daily lives, right from low power indoor lighting at home, to mid and high power outdoor lighting, industrial and horticulture lighting systems. Lighting accounts for about 15% of global electricity consumption.

A new era came with the light emitting diodes (LED). They consume little electricity, are long lasting, versatile and contain no toxic substances. LEDs are the future for lighting. Other intelligent technologies such as digital lighting control systems and smart lighting solutions are emerging in the market, further ensuring an increase in efficiency, greater energy savings and thus lower the carbon emissions.

By choosing the best suited semiconductor components in the design, power losses decrease and energy savings can be pushed even further. Hence, the selection of the right components can also boost-up the overall performance.
We at Diotec Semiconductor focus on supplying high quality products like the 3rd generation Schottky diodes. Their features like low to very low Vf and lower leakage currents make them well suited for a variety of lighting applications like LED lamp drivers, lighting controls, polarity protection of automotive lighting systems and many more.

Our actual -3G Schottky portfolio includes rectifier diodes with (very) low forward voltage drop, reverse voltages from 20V to 45V and forward current ratings from 0.5A to 30A. A new flyer shows dedicated Schottky diodes for lighting applications. If you prefer reading a hardcopy, you can order it here.

Main Features of -3G Schottky Technology:

- Very Low Forward Voltage
- Low Reverse Current
- High Power Capability
- High ESD Robustness
- Energy Savings
- Available with AEC-Q101 grading


-3G Schottky devices are also available for Industrial, Consumer, Energy and Mobility Applications. You can download our flyer here on our website.

 

Our Parts are Compliant with new REACH Candidate List

ESD protection

Like every half-year, ECHA has published on 16 July 2019 the new candidate list, containing now in total 201 substances of very high concern (SVHC). None of the new SVHC are contained in our prodcuts. Those substances which are declarable, such as the lead used in the high melting type solder alloy and fully exempted by RoHS, can be found in the material data sheets (MDS) on our website.

Download here our official REACH Certificate .

And check as an example the lead content of the SBT1045-3G - click on MDS!

 

 

 

SK34SMA L217: Perfect output rectifier for wireless charging of battery powered devices

3G Schottky Rectifier for wireless charging

Diotec proudly launches one such device: a 3rd generation Schottky device, which offers not only lower (very) forward voltage drop and therefore lower forward losses but also lower leakage currents, which allows higher standby durations.

The new SK34SMA L217 15MQ040N is a SMD Schottky diode where Vf and Ir were perfectly matched towards the customer's needs. Its a bit of a bulky part number but this can be explained as follows.

The challenge in this case was to build an output rectifier for wireless charging of a battery powered device. During stand-by mode, the reverse leakage Ir must be very low in order to avoid too fast discharging of the battery. In charging mode, the forward voltage Vf must be reduced to provide high efficieny and fast charging times.

Here the typical parameters requested for the output rectifier of the wireless charging system:

Vf typ 0.35 V @ 2 A / 125°C
Ir typ 8 µA @ 4 V / 50°C

Based on our flagship in SMA, the 3A/40V SK34SMA-3G, we built the special version L217. Our customer, a leading manufacturer of battery powered consumer devices, confirmed that this customized device outperforms impressively the parameters of the industry standard 15MQ040N.