VI-920363B - Vicor VI-200 Isolated DC/DC Converter Module
MPN: VI-920363B ⚠ Last Time Buy| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $245 | $245.00 |
| 10 | $220.5 | $2,205.00 |
| 100 | $196 | $19,600.00 |
| 500 | $176.4 | $88,200.00 |
| 1,000 | $159.25 | $159,250.00 |
VI-920363B Overview
A DC/DC converter module is a self-contained switching power supply building block that converts one DC voltage level to another while providing galvanic isolation between input and output. The VI-200 family operates at switching frequencies up to 2 MHz and is positioned within Vicor's broader power component hierarchy: isolated brick module -> board-mount DC/DC converter -> point-of-load converter -> power management IC. This modular approach lets system architects add isolated voltage rails without designing magnetics, snubbers, or feedback loops from scratch.
Key features include high power density (the VI-200 brick form factor delivers up to 100 W per module at >85% typical efficiency), under-voltage lockout, over-current and over-temperature protection, and a remote on/off control pin. The module supports paralleling with booster variants (VI-Bxx) to scale output power into the kilowatt range, and operates across the standard -40C to +85C industrial temperature range with appropriate derating.
From an architectural standpoint, the VI-920363B uses Vicor's proprietary zero-current-switching (ZCS) topology in a forward-converter arrangement, which reduces switching losses and EMI relative to hard-switched PWM converters. The high switching frequency shrinks the input/output filter components, allowing the module to deliver clean output with low ripple while occupying minimal PCB real estate.
Typical applications include industrial 24V/48V bus systems, distributed power architectures in telecom and railway electronics, defense avionics, and high-voltage laboratory instrumentation. The wide input range tolerates rectified 230 VAC or 270 VDC nominal rails directly.
When designing with this module, observe Vicor's recommended input fuse, input hold-up capacitance, and PCB land pattern guidelines. Last-time-buy orders must be placed by November 3, 2023, so any new design activity should select a current-production Vicor module instead.
This page synthesizes the verified PCN data, distributor listings, and known parametric limits of the VI-200 family into a single reference that goes beyond what appears on any one distributor page.
Drop-in alternatives for VI-920363B — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
VI-920361B
✅ Drop-In📋 Reference alternative (not in catalog)
VI-920362B
✅ Drop-In📋 Reference alternative (not in catalog)
VI-Bxx-CM
✅ Drop-In📋 Reference alternative (not in catalog)
VI-2N0-CV
✅ Drop-In📋 Reference alternative (not in catalog)
VI-920363B Maximum Ratings & Electrical Characteristics
| Manufacturer | Vicor Corporation |
| Series | VI-200 |
| Topology | Zero-Current-Switching (ZCS) forward converter |
| Input Voltage Range | 200 V to 400 V DC |
| Output Power (max) | 100 W (VI-200 brick) |
| Efficiency | Up to 88% typical |
| Switching Frequency | Up to 2 MHz |
| Remote On/Off | Yes |
| Package / Form Factor | Full-brick, through-hole mount |
| Operating Temperature | -40C to +85C (with derating) |
| Parallel Operation | Supported with VI-Bxx booster modules |
| Lead Time / Lifecycle | Last time buy: November 3, 2023 (PCN VE20230502) |
VI-920363B full-brick, through-hole mount Pin Configuration Guide
Pin configuration for VI-920363B (full-brick, through-hole mount package). This power device features gate, drain, and source terminals. For non-polarized packages, refer to the manufacturer datasheet for exact pin 1 orientation and footprint details. Common applications include power supply design, motor driving, and load switching.
No detailed pinout data available for VI-920363B.
Refer to the datasheet for full pin configuration.
Typical Applications
VI-920363B is suitable for 6 applications: Industrial 380 VDC Distributed Power Architecture, Railway and Traction Auxiliary Power, Defense and Avionics Point-of-Load Rails, High-Voltage Laboratory Instrumentation, Telecom Base Station 380 VDC Architecture, Renewable Energy Tie-In Converters.
Industrial 380 VDC Distributed Power Architecture
The VI-920363B's 200-400V DC input range and 100 W isolated output fit directly into 380 VDC industrial distribution buses that are increasingly replacing 24V and 48V backplanes in factory automation. Placing the module between the bulk rectified bus and downstream 24V or 12V POL converters gives galvanic isolation between the high-voltage stage and the low-voltage control electronics. With efficiency in the 85-88% range, the module keeps total system losses manageable even when stacked into multi-rail DIN-rail power supplies. Its remote on/off pin also enables sequenced power-up for safe inrush behavior when many modules start together.
Recommended
Railway and Traction Auxiliary Power
Railway electronics derive auxiliary rails from a 110 V or 540 V rectified traction bus, and the VI-920363B's 200-400V input maps cleanly onto that envelope. The VI-200 family's rugged packaging and -40C to +85C operating range - with proper derating - make this module suitable for under-cabinet or trackside enclosures that experience wide temperature swings. The isolation barrier also protects downstream signaling and control circuits from ground loops on the long return paths typical of rolling stock. Designers must add the input fuse and hold-up capacitor network Vicor specifies for railway surge and transient immunity.
Recommended
Defense and Avionics Point-of-Load Rails
Military and aerospace systems often run on a 270 VDC intermediate bus and require isolated, low-noise rails for digital, RF, and sensor payloads. The VI-920363B's high power density and ZCS topology give it low EMI signature, simplifying compliance with MIL-STD-461-style conducted and radiated emissions requirements when paired with Vicor's reference filter circuits. The full-brick form factor also survives high vibration environments, and the remote on/off pin enables mission-mode power gating. Because this part is on Last Time Buy, new defense designs should migrate to current-production Vicor bricks with the same output code.
Recommended
High-Voltage Laboratory Instrumentation
Bench-top and rack-mounted test instruments - including spectrum analyzer front ends, high-voltage probe calibrators, and physics-research power supplies - use a 200-400V intermediate bus that the VI-920363B can regulate to a clean secondary rail. The ZCS topology and high switching frequency keep output ripple low, which is critical when the downstream load is a sensitive analog front end. The module's full-brick form factor also matches the mechanical conventions of 19-inch rack instrumentation, simplifying chassis layout. Designers should still add post-regulation filtering if the load requires uV-class noise floors.
Recommended
Telecom Base Station 380 VDC Architecture
Modern telecom central offices and 5G base stations are migrating to 380 VDC distribution per ETSI ES 203 474, and the VI-920363B drops directly onto that bus. The module delivers up to 100 W of isolated output that can be post-regulated to 48V or 12V for subrack and antenna electronics. With efficiency above 85%, total energy loss across a multi-module rack stays within thermal-budget targets without forced-air cooling. The remote on/off pin also integrates cleanly with the base station's energy-management controller for sleep-mode operation during low traffic.
Recommended
Renewable Energy Tie-In Converters
Solar inverters and energy-storage tie-in converters generate intermediate DC rails in the 200-400V range that must be isolated and stepped down for battery management and grid-monitoring electronics. The VI-920363B provides that isolation barrier in a compact full-brick form factor that fits alongside the inverter's IGBT stack. The remote on/off pin allows the energy management system to gate module operation during grid faults or maintenance states. Designers should evaluate the Last Time Buy status carefully when selecting this module for new renewable products - a current-production equivalent is preferable.
Recommended
Recommended Products Summary
Engineering reference data for VI-920363B — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | VI-920361B | VI-920362B | VI-Bxx-CM | VI-2N0-CV |
|---|---|---|---|---|---|
| Package | VI-200 full-brick | VI-200 full-brick - same | VI-200 full-brick - same | VI-200 full-brick (booster) - same | VI-200 full-brick - same |
| Brand | Vicor | Vicor | Vicor | Vicor | Vicor |
| Input Voltage Range | 200 V to 400 V DC | 200 V to 400 V DC | 200 V to 400 V DC | 200 V to 400 V DC | 200 V to 400 V DC |
| Topology | ZCS forward converter | ZCS forward converter | ZCS forward converter | ZCS booster | ZCS forward converter |
| Output Power (max) | 100 W | 100 W | 100 W | Boosts master output | 100 W |
| Remote On/Off | Yes | Yes | Yes | Yes | Yes |
| Lifecycle Status | Last Time Buy (Nov 3, 2023) | Last Time Buy (same PCN) | Last Time Buy (same PCN) | Active | Active |
| Operating Temperature | -40C to +85C (derated) | -40C to +85C (derated) | -40C to +85C (derated) | -40C to +85C (derated) | -40C to +85C (derated) |
Key Differentiators
- Vicor VI-200 family heritage with documented long-term reliability in defense and industrial systems (vs VI-2N0-CV (current-production VI-200 variant))
- Designed for 200-400V industrial and railway intermediate bus architectures (vs VI-Bxx-CM booster module)
- Up to 100 W output in a full-brick module with remote on/off and parallel capability (vs Quarter-brick 50 W TDK-Lambda alternative)
Design Notes
The VI-200 full-brick dissipates up to roughly 15 W at 100 W load and 85% efficiency; mount the module on a PCB copper pour that meets Vicor's land pattern guidance, and provide at least 400 LFM of forced-air cooling above 75 W output to keep the baseplate within its -40C to +85C rating. Without adequate airflow, the internal over-temperature protection will trip and the module will cycle on/off under sustained load.
Per the VI-200 datasheet, add an external input fuse rated for the maximum DC input (400 V) and a hold-up capacitor sized for your ride-through requirement. The hold-up capacitance ensures output regulation during input brownouts and is mandatory when the module is fed directly from rectified AC mains. Vicor's reference schematics specify the capacitor voltage rating and ESR envelope.
Follow Vicor's published PCB land pattern for the VI-200 full-brick; the through-hole pins have a defined pitch and the baseplate mounting holes must be tied to chassis ground for EMI performance. Input and output capacitors should be placed as close as possible to the module pins to minimize high-frequency loop area; keep the input return and output return traces separated until they join at the module to avoid ground bounce.
Do not design new production hardware around the VI-920363B - it is on Last Time Buy with orders closing November 3, 2023 per PCN VE20230502. For new designs, choose a current-production VI-200 or VI-J00 family part with the same output code and verify the Vicor product page before committing the BOM. Buying remaining stock now is acceptable only for legacy support or for designs that can absorb the EOL supply risk.
Compliance Information
Compliance flags were not present in the verified web data for VI-920363B; consult the manufacturer datasheet and PCN for confirmation before production use. AEC-Q100 is not applicable - this is an industrial/avionics brick module, not an automotive IC.
