The MI-J21-IY is a high-frequency isolated DC-DC converter from Vicor's MI-J00 (Junior) series, specifically engineered for military and aerospace applications. It utilizes Vicor's Zero Current Switching (ZCS) and Zero Voltage Switching (ZVS) topologies to provide high power density and low noise. The unit converts a 28V nominal DC input (18V to 50V range) into a regulated 12V output with up to 50W of power. It is designed for use in rugged environments, featuring a fully encapsulated construction and an I-grade operating temperature range of -40°C to +100°C baseplate temperature.
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| Input Voltage (Nominal) | 28VDC |
| Input Voltage Range | 18 - 50VDC |
| Output Voltage | 12VDC |
| Output Power | 50W |
| Output Current | 4.17A |
| Operating Temperature (Baseplate) | -40 to +100°C |
| Storage Temperature | -55 to +125°C |
| Isolation Voltage (Input to Output) | 3000Vrms |
| Efficiency | 80-90% |
| Weight | 3oz |
| RoHS | Non-compliant (Lead-containing) |
| Military Standard | Designed to meet MIL-STD-810 and MIL-STD-461 |
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