IXYS MCC95-16io1B | Robust 1600V Thyristor Module for High-Reliability Phase Control
The IXYS MCC95-16io1B is not just a component; it's a cornerstone for robust and precise power regulation in demanding industrial environments. Engineered as a high-reliability thyristor/diode module, this device provides engineers with a dependable solution for AC/DC phase control applications. Featuring a common cathode configuration with a 1600V blocking voltage and a 95A average current rating, the MCC95-16io1B is built for systems where operational stability and longevity are non-negotiable.
A Deeper Look at the Engineering: Stability and Thermal Excellence
Two core design principles elevate the MCC95-16io1B beyond standard thyristor modules: its chip technology and its thermal architecture. Understanding these provides insight into its exceptional field performance.
- Planar Passivated Chips: Unlike less robust alternatives, this module utilizes planar passivated silicon chips. This manufacturing process creates a highly stable junction, ensuring consistent voltage blocking capability (VDRM/VRRM) over the device's entire operational life. For engineers, this translates directly to reduced field failures and predictable performance, even under fluctuating line voltage conditions.
- Direct Copper Bonded (DCB) Substrate: The foundation of the module is an Alumina (Al2O3) ceramic base plate with direct copper bonding. This construction provides superior electrical isolation while creating an exceptionally efficient thermal path from the silicon chip to the heatsink. The low thermal resistance achieved by this method is critical for dissipating heat effectively, improving power cycling capability and overall system reliability.
Application Focus: Where the MCC95-16io1B Excels
The unique characteristics of the IXYS MCC95-16io1B make it an ideal choice for a range of classic power conversion tasks where precise control and robustness are paramount.
- AC Motor Soft Starters: By precisely phasing the turn-on of the SCRs, this module can gradually ramp up the voltage supplied to an AC induction motor. This mitigates damaging mechanical shock and reduces peak inrush currents on the electrical supply, extending motor and system lifetime.
- Controlled Rectifiers: The common cathode topology is perfectly suited for building single-phase or three-phase controlled bridge rectifiers. This allows for the creation of variable DC voltage supplies used in battery charging systems, electrolysis, and DC motor drives.
- Industrial Heating & Lighting Control: In applications like furnace temperature regulation or large-scale architectural dimming, phase-angle control is a cost-effective and reliable method for modulating power. The MCC95-16io1B provides the granular control needed to maintain precise setpoints.
Key Technical Specifications
The following table outlines the critical performance parameters for design engineers. For a complete dataset, you can download the full MCC95-16io1B datasheet.
| Parameter | Value |
|---|---|
| Repetitive Peak Off-State/Reverse Voltage (VDRM, VRRM) | 1600 V |
| Average On-State Current (ITAVM) @ TC=85°C | 95 A |
| RMS On-State Current (ITRMS) | 149 A |
| Surge non-repetitive On-State Current (ITSM) @ 50Hz, 10ms | 1500 A |
| Threshold Voltage (VT0) | 0.95 V |
| Slope Resistance (rT) | 3.6 mΩ |
| Operating Junction Temperature (Tvj) | -40°C to +125°C |
| Package Type | TO-240AA |
Engineer's FAQ
Here are answers to common questions regarding the implementation of the MCC95-16io1B module.
- What is the main advantage of the TO-240AA package?
The TO-240AA package is an industry-standard outline known for its ease of mounting and excellent thermal interface. Its isolated base plate simplifies heatsink assembly, eliminating the need for external insulating pads and reducing assembly costs. The screw terminals provide secure and reliable electrical connections, essential in high-vibration industrial settings. - How does this thyristor module compare to using discrete SCRs?
While discrete SCRs offer design flexibility, this module provides significant advantages in manufacturing and reliability. The MCC95-16io1B integrates two pre-matched devices onto a single, thermally efficient DCB substrate. This guarantees better thermal resistance management and current sharing compared to two separate components, simplifies the bill of materials (BOM), and streamlines the assembly process. This integrated approach is a cornerstone of modern power systems design.
For detailed application support or to discuss how the IXYS MCC95-16io1B can enhance your next power control project, please contact our technical team for expert guidance.
