May 28, 2025
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In today’s industrial and aerospace sectors, demand for robust, high-power isolated DC/DC converters is surging. The V300B28C250B from Vicor Corporation stands out with its 250W output, wide input range (180-375V), and military-grade reliability. Ideal for harsh environments, this half-brick module delivers 28V/8.93A with 3kV isolation, meeting stringent requirements for defense, medical, and communications systems. Discover why engineers globally trust Vicor’s 300B Series for critical power solutions.
The V300B28C250B is a through-hole mounted, single-output isolated DC/DC converter designed for industrial and high-reliability applications. Key features include:
Input Voltage: 180V to 375V (auto-ranging)
Output: 28V at 8.93A (250W continuous)
Isolation: 3kV (meets EN60950 safety standards)
Temperature Range: -20°C to +100°C (per Vicor datasheet)
Package: 9-DIP Half Brick (57.9 x 55.9 x 12.7mm)
| Parameter | Value | Standard/Reference |
|---|---|---|
| Efficiency | Up to 91% (typical) | Vicor 300B Series Datasheet |
| Ripple & Noise | <1% of Vout (p-p) | MIL-STD-704F |
| MTBF | 2.5M hours (per Telcordia SR-332) | Industry report |
When choosing the V300B28C250B, consider:
Input Range: Verify compatibility with your power source (180-375V).
Thermal Management: Ensure adequate heat sinking for high-temperature operation.
Regulation: ±1% line/load regulation suits precision applications.
Comparison to similar models:
| Model | Output Power | Isolation | Key Advantage |
|---|---|---|---|
| V300B28C250B | 250W | 3kV | Wide input range |
| V300B12C250B | 250W | 3kV | 12V output (higher current) |
Aerospace: Avionics power distribution (DO-160G compliant).
Medical: MRI machine power supplies (IEC 60601-1 isolation).
Industrial: PLCs in manufacturing automation.
According to MarketsandMarkets™, the isolated DC/DC converter market will grow at 7.2% CAGR through 2027, driven by aerospace and renewable energy demands. Vicor’s 300B Series addresses this with modularity and efficiency.
Expect higher power densities (>300W/in³) and digital control interfaces (PMBus) in next-gen Vicor designs.
UL/IEC/EN 60950-1, CE marked, and RoHS non-compliant (per datasheet).
Yes, with external current-sharing circuits (refer to Vicor app note AN-21).
Yes, for harsh environments (IPC-CC-830B compliant).
8-12 weeks for standard orders (contact [email protected] for stock).
Isolation prevents ground loops and enhances safety in medical/industrial systems.
The V300B28C250B combines Vicor’s proven reliability with industrial-grade performance. For pricing, samples, or technical support, contact [email protected].
