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Flyer Power MOSFETs

Rectifying in a Three-phase Power Supply System - Modular or Discrete?

three-phase bridges

Luckily, Diotec offers both:

Three-phase bridges in through-hole version for soldering, screw mounting types with fast-on connectors,
or, alternatively, six discrete semiconductors in the space saving SMD package.
Here the advantages of all these types:

-    Solderable on the PCB
-    Isolated case outline, screwable on the heatsink or easily to be clamped on it

-    High performance
-    Isolated, metallic base plate to be screwed onto the heatsink

-    SMD outline DO-214AB/SMC for automatic assembly onto the PCB
-    Best price/performance ratio

Blocking Diodes for Photovoltaic Systems and High Voltage Battery Storage


The P2500Y by Diotec is an ideal blocking diode to be used in photovoltaic systems and high voltage battery storage. It offers a DC blocking voltage of 1600 V, a repetitive reverse voltage of 2000 V and an avalanche rating of 25 mJ, for robustness against short transients. The nominal average forward is 25 A; since ambient temperature in those applications is high and cooling often a problem, the typical DC current load is limited to about 10 A.

A way to reduce thermal resistance from junction to lead to lowest possible value is shown in the data sheet and the above picture. As a special service, Diotec can offer to provide the leads already bent according to that drawing. Please contact your local Diotec sales office for that service.

Cordless Power Tools - An Overview of the Electronic Equipment in Power Tool Products

cordless power tools

Human creativity and skill are the basic components of any product and can only be amplified by the use of the right tools.

Check out our latest application note to learn how Diotec helps increase efficiency, power and battery lifetime of your cordless power tool project.

Application Note Cordless Power Tools

Flyer Linear Voltage Regulators

Device Simulation a Step Closer to Real Life - Spice Models Offer Additional Thermal Characteristics


Software tools like Spice are widely used in electronics design and useful for simulation and optimization of circuits. Often the theoretical behaviour is, however, not matching to the later on real life testing, which requires in worst case a time consuming re-design. One reason for such mismatch is the lack of comprehensive thermal characteristics in Spice models, as offered by many suppliers. While e. g. the temperature behaviour of forward voltage and reverse leakage of semiconductor diodes are part of almost every Spice model, it is seldom provided for the voltage drift of Zener and TVS diodes, or the presumed constant current of CLDs (Current Limiting Diodes). And exactly that can cause an issue, when later the device is operated in the real circuit and gets unavoidable warm under load.

The Spice models provided by Diotec for its Zener and TVS diodes, CLDs but of course also all rectifiers are made with additional temperature characterisation.

Provided that Spice simulation is done with different temperature presettings, one can see the behaviour under real junction conditions and can adjust the circuit where necessary. The picture shows as an example the temperature behaviour of an uncompensated and a compensated CLD.

Spice models for Diotec products are accessible via www.diotec.com using simply the part search function.
Here just three examples for your testing:

ZMY18 [https://diotec.com/tl_files/diotec/files/spice/zmy18.zip]
P4SMAJ30A [https://diotec.com/tl_files/diotec/files/spice/p4smaj30a.zip]
CL10MD [https://diotec.com/tl_files/diotec/files/spice/cl10md.zip]

LDI812C-3.3SFA: Ultra Low Power LDO - For High Accuracy and Performance in Low-power Electronic Devices


The Internet of Things is constantly evolving all around the world. Many of these devices are compact, wearable, battery powered or integrated into consumer and industrial electronics. Minimizing the battery discharge is an essential need for keeping these electronic gadgets work for long durations. It requires LDOs with very low quiescent currents, for minimizing power consumption during stand by mode.

The LDI812C-3.3SFA from Diotec is a CMOS based high voltage low-dropout positive voltage regulator, specifically designed for low-power electronics and battery operated systems where power savings are decisive. This device can be operated at a wide range of input voltage up to 16 V. It features a fixed output voltage of 3.3 V and output current rating of 50 mA. Dropout voltage is as low as 230 mV and quiescent current ultra-low at typically 1 µA.

The device facilitates minimal board space due to its small outline dimensions and a potentially smaller output ceramic capacitor of 1.0 µF.



  • CMOS Based Voltage Regulator
  • Low Dropout of typically 230 mV
  • Quiescent Current typically 1.0 µA
  • Narrow Tolerance ± 2 %
  • Low Power Consumption


  • Internet of Things
  • Portable & Battery Powered Devices
  • Communication Devices


TVS Diodes for Almost All Kind of Applications - High Performance Protection for Green and Sustainable Technologies

TVS diodes

To design sustainable or "green" technologies means also to ensure longest possible lifetimes of electronic devices, once they are produced. An important item is here the protection against transient voltage peaks, as they occur on the power grid in case of lightning strikes. Transient Voltage Suppressors (TVS) prevent high voltage surges from damaging sensitive electronic circuits. Diotec offers TVS Diodes for almost all kind of applications, and from low up to very high voltage levels. Check out our latest Application Note to find the optimal TVS solution for your project.

Application Note TVS Diodes