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Diotec-Built Reliability Tester – Powered by Our Own Components
When it comes to quality, we don’t just test – we innovate.
Take as an example a high temperature reverse bias (HTRB) tester. It is essential for verifying the long-term reliability of semiconductor components such as diodes, transistors, MOSFETs, and IGBTs under extreme operating conditions – high voltage and high temperature.
Reliability testing is a critical step in both new product approval and daily production quality checks. At Diotec, we take this one step further:
- We design and build our own test equipment, taylor-made for the parts we do
- Diotec's own components are built into the control circuits, being a "real life testing" under very harsh conditions
Here’s a look at some of the Diotec parts embedded in the HTRB tester’s main control board:
- 1N4148WS - Small Signal Diode, SOD-323F, 100V, 0.15A, 150°C
- SM4007 - Diode, Melf, 1000V, 1A, 175°C
- BZT52B15 - Zener, SOD-123F, 15V, 0.5W, ±2%
- SL1M - Diode, SOD-123FL, 1000V, 1A, 150°C
- ZMD15B - Zener, MiniMelf, 15V, 1W, ±2%
- MM3Z4B7 - Zener, SOD-323F, 4.7V, 0.3W, ±5%, AEC-Q101
- Z1SMA6.8 - Zener, SMA, 6.8V, 1.5W, ±5%
- BC807-25 - Bipolar Transistor, SOT-23, 45V, 800mA, PNP, 0.31W, 150°C
- BC817-25 - Bipolar Transistor, SOT-23, 45V, 800mA, NPN, 0.31W, 150°C
- BCM847BS - Bipolar Transistor, SOT-363, 45V, 100mA, NPN, 0.25W, 150°C
- DI78L12UAB - Voltage Regulator, SOT-89, 35V, 11.5V, 12.5V, 125°C, 6mA
Because when we say “tested for reliability,” we mean it - with our technology at every level.
Heavy-Duty Load Dump Protection - Engineered for Harsh Environments
The LDP02 series by Diotec is the ultimate solution for load dump protection in automotive and industrial applications. These cutting-edge protection devices are designed to safeguard sensitive electronics from high-energy transients caused by load dump events, ensuring the longevity and reliability of your systems. They come in an industry-standard, cost-efficient D²PAK case, without compromising performance or reliability.
The LDP02 series has several key features:
- wide operating voltage range
- a fast response time
- superior clamping performance to effectively absorb and dissipate transient energy
The LDP02 series has a robust design that meets international automotive standards, like ISO 7637-2 and ISO 16750-2, and guarantees optimal protection in the most demanding environments.
One member of this family is the LDP02-56AYD2-AQ. It is ideally suited for use in the 24 V battery systems of trucks to protect ECU modules, power distribution systems, and other automotive electronics. The LDP02 series combines efficiency and reliability to protect devices against sudden voltage spikes.
- Applications
- Mobility en > application > mobility
- Product families
- Transient Voltage Suppressor Diodes en > productlist > TVS
Introducing the SI02C065SMB - Robust Short-Circuit Protection for SiC MOSFETs
As the demand for high-efficiency, high-frequency power electronics surges, especially in electric vehicles (EVs), solar inverters, and telecommunications infrastructure, SiC MOSFETs are becoming central to next-generation designs. However, their lower Short Circuit Withstand Time (SCWT ~2 µs) compared to IGBTs (SCWT ~10 µs) demands ultra-fast protection.
Diotec Semiconductor's latest innovation is the solution.
The SI02C065SMB is a 2 A/650 V silicon carbide Schottky diode in a compact DO-214AA (SMB) package. It is specifically designed for desaturation detection circuits that protect SiC MOSFETs during short circuits.
Key features:
- 2 A average forward current (IFAV)
- 650 V repetitive reverse voltage (VRRM)
- Maximum forward voltage 1.6 V at 2 A 25°C (VF)
- Maximum reverse leakage 50 µA at 650 V and 25°C (IR)
- Total capacitive charge 5 nC at 400 V, 2 A, -200 A/µs [QC)
- DO-214AA case outline
Ideal applications:
- Automotive auxiliary power modules
- Solar inverters
- Telecom power supplies
With its low switching losses and high reverse voltage tolerance, the SI02C065SMB is the preferred choice for robust, high-speed protection in modern silicon carbide (SiC)-based systems.
Smart Energy Meter – Powered by Diotec's HV-MOSFET DIJ006N90
In smart energy meters, a reliable and efficient power supply is essential for continuous operation. This is achieved using a Switched Mode Power Supply (SMPS), in particular using a flyback topology. Here a high-voltage MOSFET serves as the main switching element. The MOSFET rapidly turns on and off to convert high-voltage DC (from rectified AC mains) into regulated low-voltage DC, needed by the meters microcontroller and communication modules. It’s fast switching, high voltage tolerance and low power loss are critical for the SMPS to operate efficiently and safely in harsh grid environments.
The MOSFET’s performance directly impacts the meter’s overall reliability, energy efficiency and long-term stability in the field. Low RDS(on) plays a crucial role while enhancing the system, to meet these condition, the DIJ006N90 from Diotec Semiconductor is a 6 A / 900 V N-channel MOSFET with its highest voltage capability up to 900V, requiring no series connection. The low on-state resistance of typically 2.1 Ohm helps to reduce power losses, reducing the volume of the SMPS and improves power density. It comes in the isolated ITO-220 case outline offering high dielectric strength.
- Products
- DIJ006N90 en > product > DIJ006N90
- Applications
- Energy en > application > energy
- Product families
- MOSFETs (Field Effect Transistors) en > productlist > FET
Automotive Gateway Protection with Diotec’s NUP3105L-AQ ESD Diode
The automotive gateway plays a critical role in modern vehicles by managing communication between ECUs, sensors, and external networks such as CAN, LIN, and Ethernet. As the gateway becomes more exposed to connected devices and external interference, robust ESD protection becomes essential.
Why ESD Protection Matters:
Uncontrolled voltage spikes can corrupt critical data, disrupt communication systems, and cause system failure. ESD protection diodes ensure the integrity and reliability of in-vehicle networks.
Diotec's NUP3105L-AQ is an ideal solution. This ESD diode is designed for high-speed data line protection in automotive applications:
- Ultra-low capacitance: 30 pF
- ESD protection of up to 30 kV (IEC 61000-4-2)
- Peak pulse power: 295 W per line (8/20 µs)
- Bidirectional protection in a compact SOT-23 package
- AEC-Q101 qualified and PPAP capable
- Reverse leakage current: <100 nA
Whether you're designing next-generation gateways or sourcing components for resilient automotive networks, the NUP3105L-AQ delivers the performance and automotive-grade reliability you need.
- Applications
- Mobility en > application > mobility
- Product families
- ESD Protection Diodes en > productlist > ESD
Video Tutorial: How to Use the Distributor Availability List
New Website Feature: ‘Distributor Availability’ Integrated on Product Pages
We’ve added a practical new tool to our website.
Each product detail page now includes a ‘Distributor Availability’ section with:
- Real-time stock levels from our authorized distribution partners
- Immediate visibility of available quantities per distributor
- A direct “Buy Now” link to the selected distributor’s product page for fast ordering
This streamlines component sourcing and supports quicker decision-making, which is especially helpful during design, prototyping, and production planning.
Explore it now to reduce sourcing friction and get parts where and when you need them - www.diotec.com.
We encourage you to accept the cookies on our website. This will allow you to see the complete stock available at our authorized distributors.
PCN091: Replacement of SK55, SK56 by SK56-3G
Replacement of Schottky diodes by improved versions
Articles:
SK55, SK56
Smart Energy Meter-Equipped with Diotec's Capacitor-Free Voltage Regulator LDI734C3.3EN
A smart energy meter is an advanced version of a traditional electricity meter that records energy consumption in real-time and communicates data to consumers and utility companies. It helps in better energy management, cost savings and efficient electricity distribution.
By incorporating a low quiescent current and low drop-out voltage LDO, the smart energy meter can achieve long battery life, high power efficiency, reliability, and cost-effectiveness, all of which are essential for the practical deployment and sustainable operation of energy meters in a wide range of applications.
Extended battery life is a common design requirement in the smart energy meter. Using an LDO is a common way to generate a regulated voltage from the battery. This is especially true with a single-cell lithium-ion (Li-ion) battery that outputs 4.2V when fully charged. The LDI734C3.3EN specifies a typical dropout voltage of 170mV when the output current is 300mA and the output voltage is 3.3V with integrated current limiting and thermal overload protection. The low quiescent current 60uA extend the battery life. Last but not least, the LDI734C3.3EN is a capacitor free LDO, i. e. it allows stable operation without the need for external capacitors.
Introducing Diotec's New DIF065SIC020: High-Efficiency 650V SiC MOSFET in TO-247-4L Package
Diotec Semiconductor introduces its latest Silicon Carbide MOSFET DIF065SIC020, which features an exceptionally low RDS(on) values of 20mΩ. It is encapsulated in the new TO-247-4L, consisting a fourth lead, also known as Kelvin Source. It enables faster switching speeds, lower power losses and higher reliability. This makes the ideally suited for a comprehensive portfolio of various applications: Data server power supplies, photovoltaic inverters, industrial motor drives and power conversion systems.
In the context of power electronics, where industries seek to improve energy efficiency, SiC is emerging as a promising next-generation technology. It promises superior capabilities that outperform conventional silicon-based Power MOSFETs or IGBTs, due to higher voltage breakdown and significantly reduced power dissipation. The implementation of wide bandgap technology facilitates these devices to operate reliably in extreme temperature applications. With comparatively lower on-state resistance, SiC MOSFETs generate lower switching losses per cycle and significantly improve efficiency while maintaining higher switching speed in a power conversion system. As a result, SiC MOSFETs are emerging as the primary solution for various applications, especially those requiring high voltage switching at very high frequencies – where Si-based MOSFETs and IGBTs are clearly limited.
Features
- High reverse breakdown voltage
- Advanced Planar technology
- Extremely low on-state resistance
- Fast switching time with low capacitance
- Low Gate charge
- Low total switching energy
Applications
- Power supplies for Data Server
- Charging systems for electric vehicles (EV)
- Solar inverters
- Uninterruptible Power Supply (UPS)
- Power Factor Correction (PFC)
- Switched-mode power supply (SMPS)
- DC/DC converters
- Industrial drives and supplies
Specifications
- 650 V drain-source voltage (VDSS)
- Maximum 20 mΩ on-state resistance (RDSon)
- 100 µA drain-source leakage current (IDSS)
- From to -10 V to 22 V continuous gate-source-voltage (VGSS)
- Recommended turn-on Gate voltage VGS(on)of 18 V
- Recommended turn-off Gate voltage VGS(off)of -5 V
- 550 W power dissipation (Ptot)
- Up to 150 A peak drain current (IDM)
- 0.38 K/W maximum thermal resistance (RthC)
- -55°C to +175°C operating junction temperature range (Tj)
- Industrial standard case outline TO-247 with 4 leads and Kelvin Source
With the DIF065SIC020, Diotec reinforces its commitment to powering the next generation of energy solutions with durable, high-efficiency SiC technology. Whether you're designing for data server, solar, industrial, or EV applications, this MOSFET is engineered to meet the demands of modern power systems.
Contact us today to request samples or learn more about how SiC MOSFETs can upgrade your next project.
PCN089: Discontinuation of Quadro Micro- und MiniMelf (but not round MiniMelf)
We discontinue the Quadro Micro and Mini Melf Glass case outlines. Not affected are Round Glass and Plastic MiniMelf packages. For more detailed information, part numbers and potential replacements, please refer to PCN 089.