Content last revised on January 24, 2026
MCD40-16io6: High-Reliability 1600V Thyristor/Diode Module for Industrial Power Control
Introduction to a Robust Power Control Solution
The IXYS MCD40-16io6 is a robust Thyristor/Diode module engineered for superior reliability in demanding industrial power control applications. Delivering a strategic combination of high voltage capability and proven thermal performance, this module integrates a single SCR and a single diode in a series connection within the industry-standard SOT-227B package. Key specifications include: 1600V Off-State Voltage | 38A Average On-State Current | -40°C to 150°C Operating Range. This design provides exceptional long-term stability and simplifies thermal management. For industrial AC power control systems requiring dependable performance under line frequency conditions, the MCD40-16io6's high isolation voltage and robust construction offer a distinct engineering advantage. With its 1600V rating, this module is an optimal choice for controlled rectification circuits operating on 400V and 690V AC lines.
Key Parameter Overview
Decoding the Specs for Controlled Power Conversion
The technical specifications of the MCD40-16io6 are tailored for reliability and performance in line frequency applications. The module's parameters ensure predictable and stable operation in power converters, motor controls, and rectification circuits. Below is a summary of its key electrical and thermal characteristics.
| Electrical Characteristics (per semiconductor, T = 25°C unless otherwise specified) | |
|---|---|
| Repetitive Peak Reverse Voltage (VRRM) | 1600 V |
| Average On-State Current (IT(AV)) @ TC = 85°C | 38 A |
| RMS On-State Current (IT(RMS)) | 60 A |
| Gate Trigger Current (IGT) (Max) | 100 mA |
| Gate Trigger Voltage (VGT) (Max) | 1.5 V |
| Thermal and Mechanical Specifications | |
| Operating Junction Temperature (TVJ) | -40°C to 150°C |
| Isolation Voltage (VISOL) (50/60 Hz, RMS, t=1 min) | 3000 V~ |
| Package | SOT-227B (miniBLOC) |
Download the MCD40-16io6 datasheet for detailed specifications and performance curves.
Application Scenarios & Value
System-Level Benefits in Industrial Drives and Converters
The MCD40-16io6 is engineered for applications where precise control of AC power and reliable rectification are paramount. Its 1600V blocking voltage provides a significant safety margin for systems connected to 400V and even 690V industrial lines, protecting against transient overvoltages. A primary engineering challenge in applications like soft starters for AC motors is managing the initial inrush current without stressing components. The MCD40-16io6's robust surge current rating (ITSM) of up to 500A allows it to handle these high-current events reliably, ensuring a smooth and controlled motor startup. This capability directly translates to increased motor lifespan and reduced mechanical stress on the entire drivetrain. The module's isolated copper baseplate simplifies mounting onto a heatsink, creating a low thermal resistance path that is crucial for dissipating heat in power converters and DC motor controls. This facilitates a more compact and cost-effective thermal design. While the MCD40-16io6 is ideal for moderate power applications, for systems requiring higher current handling capabilities, the related MCC200-16IO1 offers a significantly higher current rating in a similar configuration.
Frequently Asked Questions (FAQ)
What is the primary benefit of the MCD40-16io6's SOT-227B package?
The SOT-227B "miniBLOC" package offers two main advantages. First, it's an industry-standard footprint, simplifying design-in and sourcing. Second, and more importantly, it features an internally isolated copper baseplate. This provides excellent thermal transfer to a heatsink while maintaining high electrical isolation (3000V~), which simplifies assembly and enhances system safety by reducing the need for external isolation materials.
How does the 1600V VRRM rating impact application design?
A 1600V repetitive peak reverse voltage rating makes this module highly suitable for controlled rectifiers and AC switches operating on 380/400V and 690V AC mains. This high blocking voltage provides a substantial design margin against line voltage fluctuations and induced transient spikes, which is a critical factor for building robust and reliable power control systems for industrial environments such as those found in a high-frequency induction heating setup or a Variable Frequency Drive (VFD).
Request for Quotation
To inquire about the MCD40-16io6 for your power system design, please contact our sales team. Provide your required quantity and target delivery schedule to receive a competitive quotation and assess availability for your project timeline.
