V375A48E600BN3 - 600W 48V Maxi Series Isolated DC-DC | Vicor
MPN： V375A48E600BN3 ✓ 啟用中V375A48E600BN3 概覽
A DC-DC converter module is a self-contained switched-mode power building block that converts one DC voltage to another, typically providing galvanic isolation between source and load. Within the broader taxonomy, this part is an intermediate-bus or distributed-bus converter (brick converter) within the power management IC and module family, optimized for 380V nominal rectified industrial bus rails. Its role is to step down high-voltage DC while delivering a regulated, isolated, low-voltage rail to downstream point-of-load converters or directly to system loads.
Key features include an input surge withstand rating of 500V for 100 ms, an output programmable from 10% to 110% of nominal (4.8V to 52.8V), regulation of ±0.25% from no load to full load, and a maximum output power of 600W. The module supports a wide operating temperature range of -10C to +100C at the baseplate. Its 425V-rated isolated topology provides reinforced safety isolation between the high-voltage input bus and the user-accessible low-voltage output.
Technically, the V375A48E600BN3 uses a proprietary zero-current-switching / zero-voltage-switching topology with Vicor's planar magnetic structure, achieving high efficiency and low EMI in a brick-format footprint. The E-grade variant denotes an enhanced-baseplate/through-hole package option designed for chassis-mount and conduction-cooled applications, with a 9-pin terminal layout for input, output, sense, trim, and enable functions.
Typical applications include industrial 380V rectified-bus power systems, factory automation, motor drives, high-voltage LED lighting, and railway/traction auxiliary power. The wide input range also makes it suitable for 400V-class EV traction auxiliary rails and renewable-energy inverter auxiliary supplies.
When designing with this module, ensure the source bus provides the inrush energy expected by the input capacitor bank and respect the baseplate temperature limits. Use Vicor's recommended input fuse, hold-up, and Pi-filter networks to meet surge-withstand and conducted EMI requirements.
This page synthesizes distributor pricing, drop-in Vicor Maxi-series alternatives, and practical design notes not consolidated in the manufacturer datasheet, giving engineers a faster path to part selection, sourcing, and EMC-ready layout.
直接替換替代品，適用於 V375A48E600BN3 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
V375A48C600B
✅ 直接替換📋 參考替代品（不在目錄中）
V375A48C600BL
✅ 直接替換📋 參考替代品（不在目錄中）
V375A48E600BL
✅ 直接替換📋 參考替代品（不在目錄中）
V375A48T600BG
✅ 直接替換📋 參考替代品（不在目錄中）
V375A48H600BG
✅ 直接替換📋 參考替代品（不在目錄中）
V375A48M600BF
✅ 直接替換📋 參考替代品（不在目錄中）
V375A48E600BN3 最大額定值與電氣特性
| 拓撲 | Isolated DC-DC converter module (Maxi brick) |
| 輸入電壓範圍 | 250 V to 425 V DC |
| Input Surge Withstand | 500 V for 100 ms |
| Nominal Output Voltage | 48 V |
| 輸出電壓範圍 | 4.8 V to 52.8 V (programmable 10% to 110%) |
| 最大輸出電流 | 12.5 A |
| Maximum Output Power | 600 W |
| Output Power (Datasheet Alternate) | 400 W |
| Line/Load Regulation | +/-0.25% no load to full load |
| 工作溫度 | -10 C to +100 C (baseplate) |
| 封裝 | Vicor Maxi brick, through-hole (9-pin, E-grade) |
| 安裝類型 | Through Hole |
V375A48E600BN3 vicor maxi brick, through-hole (9-pin, e-grade) 腳位配置指南
V375A48E600BN3（vicor maxi brick, through-hole (9-pin, e-grade) 封裝）的腳位配置。 此功率元件具有閘極、汲極與源極端子。對於非極性封裝，請參閱製造商資料表以取得確切的第 1 腳方向與佈局詳細資訊。常見應用包括電源設計、馬達驅動與負載切換。
無詳細腳位定義資料： V375A48E600BN3.
請參閱 資料表 以查看完整腳位配置。
典型應用
V375A48E600BN3 適用於 7 應用s: Industrial 380V Rectified-Bus Power System, Traction Auxiliary Power (Railway/EV), Renewable Inverter Auxiliary Supply, High-Voltage LED Lighting Driver Backbone, Medical Imaging Auxiliary Rail, Robotics and CNC Servo Drive Backplane, Server / Datacom 380V DC Distribution.
Industrial 380V Rectified-Bus Power System
The V375A48E600BN3 fits directly onto a 380V three-phase rectified DC bus (250-425 V) and converts to an isolated 48 V/12.5 A/600 W rail for downstream PLCs, industrial PCs, and motor-drive auxiliary supplies. Its 500 V/100 ms surge withstand absorbs capacitor re-charge transients and inductive bus ringing typical of long factory feeders. Compared with a discrete 600W switcher, this single Maxi brick delivers a 9-pin through-hole module with characterized EMC, simplifying UL/IEC 61800-3 compliance for industrial control cabinets.
推薦
Traction Auxiliary Power (Railway/EV)
In railway auxiliary converters and 400V-class EV traction auxiliary rails, the V375A48E600BN3's 250-425 V input window covers rectified catenary or HV battery feeds. It delivers an isolated 48 V rail for control electronics, lighting, and HVAC blowers at up to 600 W. The Maxi brick's reinforced isolation and -10 C to +100 C baseplate temperature range are characteristic of rolling-stock and e-mobility environments. Designers typically parallel two bricks for N+1 redundancy and to ride through brief input dropouts on catenary sections.
推薦
Renewable Inverter Auxiliary Supply
Solar inverters and wind converters use a 600-800 V DC intermediate bus from the MPPT stage; the V375A48E600BN3 takes that bus down to an isolated 48 V/12.5 A rail for gate drivers, fans, and SCADA communications. Its 600 W power class is well-matched to residential and small-commercial inverter auxiliary loads. The Maxi brick's 500 V transient withstand tolerates the inverter's switch-node ringing, and its 9-pin through-hole package simplifies chassis-mount thermal integration onto the inverter heatsink.
推薦
High-Voltage LED Lighting Driver Backbone
Architectural and horticultural LED fixtures that run from 380 V rectified mains benefit from a centralized 600 W DC-DC step-down brick driving a 48 V constant-voltage trunk to multiple LED drivers along the fixture. The V375A48E600BN3's 250-425 V input matches the rectified mains range exactly, and the 48 V trunk is the de-facto standard for constant-current LED drivers downstream. A single Maxi brick replaces a bulky 600 W discrete flyback with a 9-pin chassis-mount module, freeing design time for thermal and photometric optimization.
推薦
Medical Imaging Auxiliary Rail
MRI gradient amplifiers and CT scanner auxiliaries need an isolated, low-noise 48 V rail derived from a 380 V DC bus. The V375A48E600BN3 provides reinforced isolation between the high-voltage bus and the SELV user side, with +/-0.25% regulation supporting sensitive analog front-ends. Its 600 W capacity covers the auxiliary power budget of a single gradient or detector module. Engineers typically add external common-mode chokes and Pi-filters per Vicor's EMI reference to meet IEC 60601-1 system-level requirements.
推薦
Robotics and CNC Servo Drive Backplane
High-power CNC machines and 6-axis robots commonly run from a 600-700 V DC bus derived from rectified 3-phase mains. The V375A48E600BN3 converts this bus to an isolated 48 V/12.5 A rail for controller backplanes, I/O, and brake-release circuits. Its Maxi brick through-hole package simplifies chassis mounting into the machine's existing heat-sink structure, and 600 W covers the full auxiliary budget without paralleling. Industrial control designers value the brick's characterized EMC and surge performance for CE/UL industrial machinery compliance.
推薦
Server / Datacom 380V DC Distribution
Emerging 380V DC datacom distribution architectures (Open Compute, EU Code of Conduct) use the V375A48E600BN3 to step down a 380 V DC bus to an isolated 48 V/12.5 A feed for individual server sleds or PoE midspans. The brick's 425 V upper input covers the rectified 3-phase feed and the 250 V lower bound accommodates battery hold-up dips. Compared to AC-fed alternatives, a 380 V DC distribution with a Maxi brick eliminates one AC/DC stage per sled and improves end-to-end efficiency by 4-8%.
推薦
推薦產品摘要
工程參考資料，適用於 V375A48E600BN3 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | V375A48C600B | V375A48C600BL | V375A48E600BL | V375A48T600BG | V375A48H600BG | V375A48M600BF |
|---|---|---|---|---|---|---|---|
| Brand | Vicor | Vicor | Vicor | Vicor | Vicor | Vicor | Vicor |
| Package | Vicor Maxi brick, through-hole (9-pin, E-grade) | Vicor Maxi brick, through-hole (9-pin) - same | Vicor Maxi brick, through-hole (9-pin) - same | Vicor Maxi brick, through-hole (9-pin) - same | Vicor Maxi brick, board-mount (9-pin) - close | Vicor Maxi brick, through-hole (9-pin) - same | Vicor Maxi brick, through-hole (9-pin) - same |
| Input Voltage Range | 250 V to 425 V | 250 V to 425 V | 250 V to 425 V | 250 V to 425 V | 250 V to 425 V | 250 V to 425 V | 250 V to 425 V |
| Nominal Output Voltage | 48 V | 48 V | 48 V | 48 V | 48 V | 48 V | 48 V |
| Output Current | 12.5 A | 12.5 A | 12.5 A | 12.5 A | 12.5 A | 12.5 A | 12.5 A |
| Maximum Output Power | 600 W | 600 W | 600 W | 600 W | 600 W | 600 W | 600 W |
| Mounting / Grade | Through-hole, E-grade | Through-hole, C-grade | Through-hole, C-grade long-lead | Through-hole, E-grade long-lead | Board-mount, T-grade | Through-hole, H-grade | Through-hole, M-grade |
| Operating Temperature (baseplate) | -10 C to +100 C | -10 C to +100 C | -10 C to +100 C | -10 C to +100 C | -10 C to +100 C | -10 C to +100 C | -10 C to +100 C |
主要差異化特點
- Single 9-pin Maxi brick replaces discrete 600W switcher + transformer + EMC circuit (對比V48A48E500BG3)
- Reinforced isolation and 500V/100ms surge withstand for hazardous-voltage buses (對比V24A12E300B)
- Programmable output 10% to 110% (4.8V to 52.8V) from a single module (對比V375A48C600B)
設計說明
Estimated: At 600 W output and ~90% typical Vicor Maxi efficiency, internal dissipation is approximately 60-70 W. Mount the V375A48E600BN3 to a chassis or heatsink with sufficient thermal mass to keep the baseplate below +100 C under worst-case ambient. For convection-only designs, derate to 400-450 W; for forced-air or conduction-cooled chassis, full rated power is achievable. Apply a thin, uniform thermal interface material between baseplate and chassis for repeatable thermal resistance.
Use the Vicor-recommended PCB land pattern for the 9-pin Maxi brick (input/output pins on one side, sense/trim/enable on the other). Provide wide copper pours on input and output traces to carry 12.5 A continuous with less than 10 C rise, and keep input return and output return separated to minimize common-mode noise coupling. Place input fuse and Pi-filter components within 25 mm of the input pins to suppress the 500 V/100 ms surge event and conducted EMI from the switching stage.
Do not exceed the 425 V continuous or 500 V/100 ms surge input ratings - over-voltage on a Maxi brick is non-recoverable and not field-serviceable. Always wire +Sense/-Sense at the load, not at the brick's output pins, to remove distribution losses from the regulation loop. Use the Trim pin only within the documented 10-110% range and never float the Enable pin (tie high or low as appropriate). Verify that the upstream source can supply the brick's inrush current without tripping upstream protection.
Although the brick itself is characterized for EMC, the system-level EMI result depends on the input Pi-filter, output capacitance, and chassis grounding. Use Vicor's reference design Pi-filter (common-mode choke + X/Y capacitors) on the input to meet EN 55011/CISPR 11 Class A for industrial equipment and EN 55022 Class A for datacom. Place the input fuse after the Pi-filter to keep its inductance out of the filter's noise path. For Class B, add a second filter stage or shielding.
合規資訊
Explicit RoHS/REACH/AEC-Q100 status was not present in the verified distributor snippets; engineer should request the Vicor RoHS/REACH declaration letter directly for RoHS-restricted or automotive programs. AEC-Q100 is not applicable - Maxi bricks are industrial-grade modules not qualified to automotive reliability standards.
