Up To Date

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


Did You Ever Drive an Electric Car?

Discrete Solutions for EV Charging
Flyer EV Charging Solutions

When driving an EV, you will be impressed by its surpassing acceleration. More controversial discussed are the environmental aspects. Clear is that there is no pollution at the place where you drive. But if electricity for re-charging the battery is generated in the traditional way, the problem is just shifted to another place. New concepts deal with the usage of EVs for energy storage of fluctuating solar and wind power. Wall boxes or, even better, wireless charging systems at home and in companies could ideally serve such concepts.

All kind of EV charging stations can be easily realized by using cost-effective, widely available discrete power components. At low power systems they can be used to build the entire power stage, while at high power charging stations they are mainly used for auxiliary functions and controls.

Our latest flyer introduces a broad range of discrete power semiconductors from Bridge Rectifiers over Fast Efficient Diodes and MOSFETs to Schottky Rectifiers. It further includes state-of-the-art components used for control and protection purposes. They allow design engineers to develop cost-effective and energy-efficient solutions for any EV charging system.

1.0SMBJ series TVS diodes: High in performance. Compact in Size.

data sheet 1.0smbj

Today’s modern high power density electronics are more vulnerable to electrical stresses than ever due to the component miniaturization. High demand scalable electronics such as Smart Meter require high reliable circuit protection. These devices are connected directly to the land line, where lightning strikes are a permanent source for excessive voltage surges.

The 1.0SMBJ series from Diotec is a high power density and compact Transient Voltage Suppressor (TVS), optimized to protect vulnerable electronics from high voltage transients. It offers a high peak pulse power dissipation of 1000 W at 10/1000 µs waveforms in a compact DO-214AA/SMB package. Standoff voltage ranges from 5.0 V to 120 V, breakdown from 6.4 V to 133 V.


  • DO-214AA/SMB package
  • 1000 W peak pulse power at 10/1000 µs waveforms
  • Standoff voltage from 5.0 V to 120 V
  • Breakdown voltage from 6.4 V to 133 V
  • Uni and bidirectional versions

SRL23 Schottky diodes: High Power dissipation. Ultra-low profile package.

data sheet srl23

The SRL23 is a high current Schottky diode in the tiny PowerSOD-323/DO-219AD package and measures 2.5 mm x 1.25 mm. It thus requires just 3.1 mm² on the printed circuit board.

This device is optimized for high frequency and high power density applications. It features a repetitive reverse voltage of 30 V and nominal forward current rating of 2 A. Having smaller dimensions, low height profile and large cathode-sided leads these part enable the design engineers to increase power density and save space in compact electronics. The low forward voltage characteristics allow for energy efficient solutions for applications like battery chargers, power supplies, set-top boxes, smart meters, any kind of smart home devices and much more.


  • Ultra-small and low profile PowerSOD-323 package.
  • Requires only 2.5 mm x 1.25 mm of board space
  • Just 0.6 mm of device height
  • Forward current 2 A and 30 V repetitive reverse voltage

Don't Waste Any More Valuable Board Space!

Amp / 600 Volt Rectifier Needs Just 3.1 mm²
Data Sheet SRL1x

The SRL1 series of Standard Recovery rectifier diodes comes in the tiny PowerSOD-323/DO-219AD and measures 2.5 mm x 1.25 mm. It thus requires just 3.1 mm² on the printed circuit board. Due to its large cathode-sided heat dissipation area, it offers anyway a nominal forward current of nominal 1 A and is available with up to 600 V peak reverse voltage. It is therefore the ideal solution for polarity protection and low frequency rectification on all PCBs where space is restricted. The family starts with the SRL1B offering 100 V and ends with the SRL1J having 600 V. Automotive compliant versions can be ordered by adding the suffix -Q to the part number.

Features at a glance:

  • Ultra small and low profile PowerSOD-323 package
  • Requires only 2.5 mm x 1.25 mm of board space
  • Just 0.6 mm of device height
  • Forward current 1 A and 100 V to 600 V reverse voltage
  • AEC-Q101 compliant available

Linear Voltage Regulators - Stable Output Voltage at Low Costs

Flyer Linear Voltage Regulators

Linear voltage regulators are simple and cost-efficient devices, for generating stable output voltage from a wide range of higher input voltages. With their simple 3-pin internal configuration and small package dimensions, they enable the designers to easily use them in various linear circuits covering a broad range of applications.

Our new linear voltage regulators are designed for high performance operation. Applications include medium power general-purpose consumer and industrial circuits such as DC/DC converters, battery chargers, LED drivers and µController (MCU) circuits.

Linear voltage regulators are used in sensitive applications and complex circuits, requiring stable supply voltages, low to medium current capabilities and low noise. You can find all the information also in our new flyer.

Diotec's product portfolio offers:

  • Positive Voltage Regulators (Fixed version)
  • Negative Voltage Regulators (Fixed version)
  • Low Dropout Voltage Regulators (Adjustable and Fixed version)
  • Low dropout & Low Quiescent LDO Voltage Regulator (Fixed version)

Our new Linear Voltage Regulators comes in the industry-standard packages such as SOT-223, SOT-23, SOT-89, TO-92 and SO-8, with the following main features:


  • Adjustable and fixed output voltage versions
  • Adjustable output voltage range: 1.25 V ... 13.65 V
  • Fixed output voltage range: - 5.0 V ... 24 V
  • Maximum output currents upto 1 A
  • Output voltage accuracy: ±1%, ±2% and 5%
  • Typical quiescent current: 8 µA ... 6.5 mA
  • Typical dropout voltage: 0.075 V ... 2.0 V
  • Thermal overload and short circuit protection


  • Post regulators for switch mode power supply
  • DC/DC converters
  • Active SCSI termination regulators
  • Battery powered electronics
  • Mobile / Smart Phones
  • Home automation systems
  • Game consoles

Protect your PV Modules and Improve Inverter Efficiency with our High Efficient and Robust Discrete Power Solutions in TO-220 and D²PAK

Video Protect your PV Modules

Solar energy is one of the cleanest forms of renewable energy. Photovoltaic plants are one of the fastest growing sources for our future electricity generation.
In PV modules, cell strings are connected in series to increase the voltage output. During operation, they require the protection from a "hot-spot" phenomena in case of partial shading. Bypass diodes come into play to overcome such problems. These diodes are connected in parallel to the strings and bypass the current from the shaded cells.

IGBTs used in solar inverters require free-wheeling diodes with low forward voltage drop and very fast reverse recovery, in order to keep power losses at a low level. Superfast Efficient rectifiers are a cost effective solution for all such inverters.

Diotec offer various high efficient and robust discrete power solutions like Schottky, Superfast Efficient and Protectifiers® in TO-220 and D²PAK packages.

Stay Relaxed with full protected Devices

ESD protection is no more a matter of size
data sheet esd9bl0522p

The ESD9BL0522P by Diotec comes in the tiny, "leadless" SOD-882/DFN1006 package. It measures only 1.0 mm by 0.6 mm at no extended leads, but terminals fully integrated on the bottom package side. Parts offer anyway a comfortable ESD surge capability of 20 kV (air discharge) respectively 15 kV (contact discharge) according to IEC 61000-4-2.

Due to their very low junction capacity of 0.4 pF only, they are well suited for high frequency data lines and interfaces. The stand-off voltage of 5V covers a wide range of signal levels, and clamping voltage of 12 V at 1 A and 8/20 µs surges helps to protect sensitive electronic circuits.

Jump Start a Combustion Engine from an Electric Vehicle? It works! And is the reason why also EVs need load dump protection

Application Note Automotive Load Dump Protection

Though the main power train of electrical vehicles use a high voltage battery, all these cars have still the traditional 12 V battery on board. Reason is that most electronic and electrical systems in a car - lights, screen-wiper, infotainment etc. - are made for that voltage level. This battery is further used for the switch to connect and disconnect the high voltage system when the car is started or stopped. As such, EVs can jump start cars using a combustion engine - and also vice versa!

At that procedure, load dump protection becomes important. A load dump transient is the voltage surge generated when the battery is disconnected while the alternator is connected. This typically happens if a discharged car battery is powered up by a second one and afterwards jump leads are removed. The peak voltage of this surge may be as high as 120 V and the surge may take up to 400 ms to decay. It is typically clamped to 40 V in 12 V vehicles (cars) and about 60 V in 24 V systems (trucks).

Diotec's new application note "Automotive Load Dump Protection" describes suitable TVS diodes for surges according to "Test A" (elements for centralized suppression) as well as "Test B" (distributed protection of on-board electronics), all described in the standard ISO16750-2.

Safe and Reliable operation of Power Tools and DC Drives

Protectifiers® - For an Extra Margin on Safety and Low Power Losses
Video Low Vf & Protectifier solutions in TO 220 and D2PAK

Free-wheeling diodes used in power tools and DC drives are subject to high voltage transients and forward current peaks, which occur especially during start-up or when the motor gets suddenly blocked. Such events could damage the switch component and thus the entire system. Here come our Protectifiers® into action.

They stand for “Protected Rectifiers”, featuring low forward voltage drop and very robust reverse characteristics, comparable to suppressor diodes. The first enables not only lower power losses and thus low operating temperatures, but also very high forward surge current capability. The second safeguards the speed control unit inside the power tool and DC drive for a high reliable operation.

Flyers: Discrete Solutions for your Power Applications - Rectifiers in TO-220 and D²PAK

Video Power Rectifiers in TO-220 and D2PAK

Discrete power components are state-of-the-art in various applications. They offer cost-effective, robust, easy to assemble and reliable solutions for many kinds of power circuits. Diotec’s product portfolio includes Standard, Fast, Superfast Efficient and Schottky Barrier Rectifiers. Single and dual diodes are available in both TO-220AC (2 pin) and AB (3 pin) packages and also in 2 pin and 3 pin D²PAK outlines (TO-263AA & AB).

Our proprietary Protectifiers® in TO-220 offer low forward voltage drop at high reverse robustness – protected rectifiers indeed!

We are dedicated to develop discrete power semiconductors and also provide optimized solutions to contribute greater energy savings and performance of modern power electronics. Download our new flyer about Power Rectifiers in TO-220 and D²PAK!


  • High current density: 8 A to 30 A
  • Low power losses, high efficiency
  • High reliable/thermally efficient packages
  • Proven outline for heatsink assembly
  • Single and Dual diodes
  • TO-220 Package:
  • TO-220AC & AB (2 pin & 3 pin)
  • Protectifiers®
  • 3rd Gen Schottkys
  • Standard to Superfast Efficient Rectifiers
  • D²PAK Package:
  • TO-263AB (2 pin) and TO-263AA (3 pin)
  • 3rd Gen Schottkys
  • Standard to Superfast Efficient Rectifiers

Typical Application

  • Switch Mode Power Supplies (SMPS)
  • DC / DC Converters
  • AC and DC Drives
  • Input and Output Rectification
  • Power Factor Correction (PFC)
  • Free-wheeling Diodes
  • Polarity Protection
  • OR-ing Circuits