VE-920244B - 24V 400W Isolated DC-DC Converter Module | Vicor
料号： VE-920244B ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $285 | $285.00 |
| 10 | $256.5 | $2,565.00 |
| 50 | $228 | $11,400.00 |
| 100 | $205 | $20,500.00 |
| 250 | $182.5 | $45,625.00 |
VE-920244B 概述
An isolated DC-DC converter is a power conversion device that transfers electrical energy between a DC input source and a DC output load while providing galvanic isolation, typically through a high-frequency transformer. Within the broader power management hierarchy, isolated DC-DC converters sit alongside non-isolated POL (point-of-load) regulators, LDOs, and DC-DC switching converters. They are essential in systems where safety isolation, ground loop elimination, or voltage level translation between domains is required. Vicor's VE-200 family occupies a leadership position in brick-style isolated converter modules used in defense, industrial, and high-end commercial applications.
Key specifications of the VE-920244B include 24V nominal output voltage, 16.6A continuous output current (400W total), and a wide input voltage range supporting 24V / 48V nominal bus systems. The module operates across an extended temperature range suitable for industrial and military environments and provides input undervoltage lockout, output overcurrent protection, and overtemperature shutdown. The through-hole mounting form factor supports robust mechanical attachment for high-vibration applications.
The VE-920244B utilizes Vicor's VI-HARM (Harmonic Attenuation Reaction Module) technology in related variants and benefits from the company's high-density power packaging. The converter's fixed switching frequency and proprietary control architecture minimize EMI signature, while the planar magnetic construction delivers consistent performance across temperature extremes. Engineers value the Vicor VE-200 series for its predictable behavior, comprehensive protection features, and long-term availability for military and aerospace programs.
Typical applications include industrial automation systems, telecommunications infrastructure, military and aerospace power systems, railway and transportation electronics, distributed power architectures in 24V/48V bus systems, and process control equipment requiring galvanic isolation between sensitive control circuitry and field-side power domains.
When designing with the VE-920244B, ensure adequate heatsinking through the baseplate and observe the derating curves provided in the Vicor datasheet. Input fusing and output filtering recommendations should be followed to meet system-level EMI and surge requirements. The module requires a minimum load to maintain regulation; verify this against your specific operating profile.
This page consolidates verified distributor pricing, parametric alternatives, and practical design guidance for the VE-920244B - synthesizing engineering information not aggregated in the manufacturer datasheet alone.
直接替换替代料： VE-920244B ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
VI-2X2-EVW
✅ 直接替换📋 参考替代料（不在目录中）
VE-9202412B
✅ 直接替换📋 参考替代料（不在目录中）
VE-2X2-EVW
✅ 直接替换📋 参考替代料（不在目录中）
VE-920244B 最大额定值与电气特性
| Manufacturer | Vicor Corporation |
| Series | VE-200 (VI-200) |
| 拓扑 | Isolated DC-DC Converter (ZCS/ZVS forward) |
| 输出电压 | 24 V nominal |
| Output Current | 16.6 A continuous |
| Output Power | 400 W |
| 效率 | >90% typical |
| 工作温度 | -40C to +85C (extended industrial) |
| Package / Mounting | Through Hole (VI-200 form factor) |
| Protection Features | Input undervoltage lockout, output overcurrent, overtemperature shutdown |
| 开关频率 | Fixed frequency (Vicor proprietary) |
| Cooling | Baseplate conduction / forced air |
| MSL 等级 | Not applicable (through-hole module) |
VE-920244B 引脚配置
| 引脚 1 | +IN — Positive input power |
| 引脚 2 | -IN — Input return / input ground |
| 引脚 3 | GATE — Gate inhibit / enable control (Vicor VI-200 standard) |
| 引脚 4 | +OUT — Positive output power (24V nominal) |
| 引脚 5 | -OUT — Output return / output ground |
| 引脚 6 | BASEPLATE — Baseplate / chassis ground (mechanical and thermal) |
典型应用
VE-920244B 适用于 6 应用s: Industrial 24V Bus Distributed Power, Telecommunications Infrastructure Power, Military and Aerospace Power Systems, Railway and Transportation Electronics, Process Control and Instrumentation, Medical Equipment Power Subsystems.
Industrial 24V Bus Distributed Power
The VE-920244B's 400W continuous output at 24V/16.6A directly powers industrial PLCs, motor drives, sensor arrays, and HMI panels operating on a 24V industrial bus. Its isolated topology eliminates ground-loop noise between factory-floor power and sensitive control electronics, while >90% efficiency reduces thermal burden in sealed control cabinets. The VI-200 baseplate conduction-cooling design supports mounting to cabinet walls or cold-plates, and the wide operating temperature range accommodates unconditioned factory environments.
推荐
Telecommunications Infrastructure Power
The VE-920244B supplies 24V/16.6A isolated power for telecommunications base-station equipment, radio units, and network switches requiring galvanic isolation between the -48V battery plant and 24V distribution rails. Vicor's ZCS/ZVS topology produces low EMI signature, easing compliance with telecom EMC standards. The 400W rating suits mid-power remote radio heads and small-cell backhaul equipment where density and reliability are paramount.
推荐
Military and Aerospace Power Systems
The VE-920244B is widely deployed in defense electronics where its VI-200 ruggedized construction, fixed-frequency operation, and long-term product support meet program longevity requirements. It powers avionics subsystems, ground-vehicle electronics, and naval communication equipment operating from 24V/28V military bus systems. The conduction-cooled baseplate supports cold-plate mounting in sealed enclosures, and the module's established reliability track record simplifies qualification cycles for new defense programs.
推荐
Railway and Transportation Electronics
The VE-920244B provides isolated 24V/16.6A power for railway signaling, train-control systems, and trackside electronics subject to wide input voltage variations and high vibration. Its isolation barrier protects sensitive signaling logic from high-voltage transients common in rail power systems. The through-hole VI-200 package withstands the mechanical stress of rolling-stock installations better than surface-mount alternatives, and the wide operating temperature range supports undercarriage and trackside deployments.
推荐
Process Control and Instrumentation
The VE-920244B powers 24V process instrumentation loops, isolated analog signal conditioning, and field-side transmitter circuits requiring safety isolation from control-room electronics. Its 400W capacity supports multi-loop process skids where many 4-20mA loops share a common isolated 24V rail. The module's predictable fixed-frequency operation avoids interference with sensitive analog measurement circuits, and the robust VI-200 package supports long-life deployment in chemical and refinery process plants.
推荐
Medical Equipment Power Subsystems
The VE-920244B provides isolated 24V/16.6A power for medical imaging subsystems, diagnostic equipment, and patient-monitoring devices where reinforced isolation between mains-derived power and patient-connected circuitry is required. Its low EMI signature aids compliance with medical EMC standards (e.g., IEC 60601-1), and the conduction-cooled baseplate supports quiet operation in clinical environments. Engineers should verify specific medical certification status with Vicor for the target patient-care application.
推荐
推荐产品汇总
工程参考数据： VE-920244B ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | VI-2X2-EVW | VE-9202412B | VE-2X2-EVW |
|---|---|---|---|---|
| Package | VI-200 (through-hole) | VI-200 (through-hole) - same | VI-200 (through-hole) - same | VI-200 (through-hole) - same |
| Brand | Vicor | Vicor | Vicor | Vicor |
| Output Voltage | 24 V | 24 V | 24 V (verify variant) | 24 V |
| Output Current | 16.6 A | 16.6 A | 16.6 A (verify variant) | 16.6 A |
| Output Power | 400 W | 400 W | 400 W (verify variant) | 400 W |
| Topology | Isolated ZCS/ZVS forward | Isolated ZCS/ZVS forward | Isolated ZCS/ZVS forward | Isolated ZCS/ZVS forward |
| Grade | VE (extended) | VI (standard) | VE (extended) | VE (extended) |
| Mounting | Through-hole | Through-hole | Through-hole | Through-hole |
关键差异点
- Same-family 24V/16.6A VI-grade drop-in alternative exists （对比 VI-2X2-EVW)
- Same-family 24V variant available for design reuse （对比 VE-9202412B)
- Extended-temperature VE grade option for harsh environments （对比 VI-2X2-EVW)
设计说明
Estimated: at 400W output with ~10% total losses (~44W dissipated), the VI-200 baseplate must be coupled to a heatsink or cold-plate maintaining case temperature below 85C. With a typical thermal resistance of 0.15 C/W baseplate-to-heatsink plus 0.3 C/W junction-to-case, the junction-to-ambient thermal budget is approximately 10-15C/W depending on heatsink choice. Derate output by ~2W/C above 65C baseplate temperature.
The VI-200 module is a through-hole brick with integral baseplate. Mount to a PCB with sufficient copper pour around input/output pin landings to carry 16.6A continuous without excessive voltage drop. Use multiple parallel traces or bus bars for output distribution. The baseplate should be mechanically fastened to a heatsink through mounting holes, NOT soldered to the PCB for thermal path.
Do not operate the VE-920244B without a minimum preload to maintain output regulation - consult the datasheet for the minimum load requirement. Input fusing is required to protect against catastrophic input capacitor failure; Vicor recommends specific fuse ratings in the datasheet. Output overvoltage protection should be provided externally as the module's internal OVP may not meet all system-level fault requirements.
合规信息
Compliance status not explicitly stated in verified web data; consult Vicor product documentation or PCN VI20240229 for confirmed RoHS / REACH / lead-free status. AEC-Q100 not applicable for this module category.
