Vicor MI-J20-IY/S DC-DC Converter | Military-Grade High-Density Power Solution
Product Overview
The Vicor MI-J20-IY/S is a high-performance, military-grade isolated DC-DC converter module engineered for extreme reliability in the most demanding environments. Part of Vicor's renowned MI-J00 series, this compact module delivers a precisely regulated 10V output at 25W from a 10V to 20V input source. Its robust construction and exceptional power density make the MI-J20-IY/S an ideal power solution for mission-critical applications in aerospace, defense, and ruggedized industrial systems where performance and dependability are non-negotiable.
In-Depth Analysis of Core Features
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Proprietary Zero-Current Switching (ZCS) Topology
- Technical Principle: The Vicor MI-J20-IY/S utilizes a high-frequency (megahertz-range) Zero-Current Switching forward converter topology. Unlike conventional Pulse Width Modulation (PWM) converters that incur significant switching losses when transistors turn on and off under load, ZCS ensures the power transistor switches precisely when the current through it is zero. This resonant technique virtually eliminates switching losses and the associated high-frequency noise.
- Application Value: This advanced design directly translates to superior efficiency (up to 85%), which significantly reduces waste heat. For system designers, this means a smaller, lighter heatsink or even its complete elimination, saving critical space and weight. Furthermore, the inherently low noise signature simplifies EMI filtering and compliance, accelerating the design cycle and ensuring electromagnetic compatibility in sensitive electronic environments.
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Military-Grade Ruggedization and Reliability
- Technical Principle: The "MI-" prefix signifies that this module is built for military applications. It is fully encapsulated in a thermally conductive, chemically resistant epoxy, providing exceptional protection against shock, vibration, and humidity. The module is designed to operate flawlessly across an extreme baseplate temperature range of -55°C to +100°C, a specification that far exceeds commercial-grade components.
- Application Value: This rugged construction guarantees long-term operational integrity in harsh conditions, from the intense vibrations of a ground vehicle to the extreme temperature cycles of an avionics bay. For engineers designing systems for defense or aerospace, the MI-J20-IY/S provides confidence in system uptime and mission success, drastically reducing the risk of power-related field failures and lowering long-term maintenance costs.
Typical Applications and Value Proposition
- Aerospace & Avionics: In aircraft, drones, and satellite systems, power density is paramount. The compact footprint and high efficiency of the MI-J20-IY/S help minimize the size and weight of the power subsystem, enabling increased payload capacity and improved fuel efficiency. Its proven reliability ensures stable power for critical flight controls, navigation, and communication systems.
- Defense & Military Vehicles: This DC-DC converter provides the ruggedness needed for mobile C4ISR (Command, Control, Communications, Computers, Intelligence, Surveillance, and Reconnaissance) systems. It reliably powers sensitive electronics despite the severe shock, vibration, and unstable input power common in tactical vehicles, ensuring mission-critical equipment is always operational.
- Naval Systems: The encapsulated package of the Vicor MI-J20-IY/S offers excellent resistance to moisture and salt fog, making it a perfect fit for shipboard electronics. It provides dependable power for radar, sonar, and control systems that must operate continuously in corrosive marine environments.
- Demanding Industrial Automation: For industrial applications facing extreme temperatures or high mechanical stress—such as heavy machinery control or remote sensor stations—this module offers a significant upgrade in reliability over standard power supplies, preventing costly downtime and extending system lifespan. For other industrial power needs, you can also view more IGBT modules.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 10V - 20V DC |
| Output Voltage | 10V DC |
| Output Power | 25W |
| Efficiency | Up to 85% |
| Isolation Voltage | 3000 Vrms |
| Operating Temperature (Baseplate) | -55°C to +100°C |
For a complete list of specifications, please refer to the official product datasheet.
Product Comparison and Selection Guide
When selecting a power module, it's crucial to match the component to the application's specific demands. The Vicor MI-J20-IY/S is the premier choice for low-voltage (12V nominal bus) systems operating in harsh, mission-critical military or aerospace environments where failure is not an option. Its key advantages are its extreme temperature range and ruggedized packaging. For industrial applications that are demanding but do not require full military compliance, the commercial-grade Vicor VI-J20-IY/S offers a similar electrical performance in a less ruggedized, more cost-effective package. If your system design involves a different input bus, such as the 28V standard in military systems, you may need to explore Vicor's MI-200 series. Evaluating your system's environmental stress, reliability requirements, and input voltage is the first step to making the right choice. For detailed application support or to discuss your project's unique power challenges, please contact us to get a quote and expert advice.
