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Diotec keeps its product portfolio close to the market demands with know-how, research and passion.

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Demo Board 3990 CLD + Shunt Regulator

2-in-1 Demo Board 3990

Demo 1: Driving a Signal LED on 6 to 60V with just one CLD

Demo 2: Power Supply/Voltage Reference for µControllers etc with CLD + Shunt Regulator

15MQ040N immediately available +++ Top-Distributors awarded +++ Diotec not affected from Kobe Steel issue

Diotec has recently added the 1.5A/40V Schottky diode 15MQ040N in SMA package to its production program. This widely used article is currently very difficult to source from our competitors due to extremely long lead times. We are able to produce the 15MQ040N in a much shorter time. Order your samples here.

During our Diotec Distribution-Meeting from 11. – 13. October 2017 in Freiburg im Breisgau we awarded our “Top Distributors 2017”. Nearly all of our worldwide represented Distributors participated.

In the light of recent events, we would like to inform you that Diotec has never used, directly or indirectly copper sheets for semiconductor terminals from the supplier Kobe Steel. Please, have a look at our official statement.

Our product videos are now available with English subtitles.

Taylor made Schottky Diodes for Contactless Charging

Allowing for faster charging times while in parallel they can prolong the standby time of the battery:
Watch video

Dedicated Devices for Smart Meter

Avalanche diodes, snubber networks and a design idea to supply µControllers by a constant-current-source and a shunt-regulator shows our video about SmartMeter:
Watch video

Products for Automotive Applications

This video shows Automotive applications where Diotec products are used in:
Watch video

New Online Videos +++ Contactless Charging +++ Smart Meter +++ Automotive

Taylor made Schottky diodes allow for faster charging times at contactless charging while in parallel they can prolong the standby time of the battery:
Watch video


Avalanche diodes, snubber networks and a design idea to supply µControllers by a constant-current-source and a shunt-regulator shows our video about SmartMeter:
Watch video


Automotive applications where Diotec products are used shows this video:
Watch video

PCN032: Change of Package MUR420 ... MUR460

Change of case outline of MUR420 ... MUR460 into DO-201.

Short Leadtimes +++ Precision Shunt Regulator +++ Application Note Smart Meter +++ Spice Models and Step Files

Diotec offers many of its production range from stock or with a typical four to six weeks lead time. Just email us your requests and let us check how we can support your needs!

The MMTL431A is an Adjustable Shunt Regulator in SOT-23. It features a precise voltage reference with +/-0.7% and allows for constant voltage adjustment from 2.48V up to 36V at curents from 1mA to 100mA. Samples can be ordered here.

The new Diotec Application Note Products for Smart Meter explains the need for minimum 1600V input rectifier for their power stage and why an Avalanche diode must have less than 2000V in that place.

We provide close-to-reality SPICE Models for circuit simulation as well as STEP files for CAD modelling in 3D: Ask our Technical Support.

Products for Smart Meter

The need for 1600V input rectifiers and why avalanche diodes at this place must have less than 2000V. Power supply of the Microcontroller using shunt regulator MMTL431A.

PCIM Europe +++ Selection Guide Edition 25 +++ Video about Protectifiers(R)

At PCIM Europe in Nuremberg we presented for the first time our new Selection Guide "Silver Edition" 25. This complete overview of Diotec's product portfolio comes in the new, handy A4 booklet format and offers an application page including QR codes for download of product videos. You can order the Selection Guide here.

Even proven things require sometimes a small "freshening up". The reworked Diotec website can now be used comfortably on your smartphone or other mobile devices. Try it out!

The Third Edition of our online video presentation series explains the need for free-wheeling diodes in battery powered tools and why Protectifiers® are the better choice compared to Schottky diodes.