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HomeProductsPower Supplies - (Board Mount)DC DC ConvertersVI-B7N-IW
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VI-B7N-IW - Vicor Corporation

Manufacturer Part Number
VI-B7N-IW
Manufacturer
Vicor
Allelco Part Number
98D-VI-B7N-IW
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
30,962 pcs available, New & Original
Parts Description
DC DC CONVERTER 18.5V 100W
Package
Full Brick
Data sheet
VI-B7N-IW.pdf

Environmental Information

Vicor REACH.pdf
RoHs Status
 
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In stock: 30962

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Specifications

VI-B7N-IW Tech Specifications
Vicor Corporation - VI-B7N-IW technical specifications, attributes, parameters and parts with similar specifications to Vicor Corporation - VI-B7N-IW

Product Attribute Attribute Value
Manufacturer Vicor
Voltage - Output 3 -
Voltage - Output 2 -
Voltage - Output 1 18.5V
Voltage - Isolation 3 kV
Voltage - Input (Min) 100V
Voltage - Input (Max) 375V
Type Isolated Module
Size / Dimension 4.60' L x 2.40' W x 0.50' H (116.8mm x 61.0mm x 12.7mm)
Series VI-200™ (100W)
Power (Watts) 100 W
Product Attribute Attribute Value
Package / Case Full Brick
Package Bulk
Operating Temperature -40°C ~ 85°C
Number of Outputs 1
Mounting Type Through Hole
Features OCP, OTP, OVP, SCP
Efficiency 90%
Current - Output (Max) 5.41A
Base Product Number VI-B7N
Applications ITE (Commercial)

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status RoHS non-compliant
Moisture Sensitivity Level (MSL) Not Applicable
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8504.40.9580

Frequently Asked Questions(FAQ)

What are the key design considerations when integrating the VI-B7N-IW into a high-voltage input industrial power system?
The VI-B7N-IW operates over a wide input range of 100V to 375V, making it suitable for applications such as telecom rectifiers or industrial DC buses with fluctuating voltages. Its 3 kV isolation rating supports safe operation in noisy or high-potential environments, but designers must ensure adequate creepage and clearance distances on the PCB, especially given the through-hole full-brick package. The converter’s 90% efficiency reduces thermal stress, but at full 100W load, approximately 11W of heat is still generated, necessitating proper airflow or heatsinking in enclosed systems.
How does the VI-B7N-IW handle transient overvoltage conditions on the input side?
While the datasheet specifies a maximum input voltage of 375V, sustained or repetitive transients above this threshold can compromise reliability. The VI-B7N-IW includes overvoltage protection (OVP), but it is not designed to absorb significant energy from surges. For systems exposed to inductive load switching or lightning-induced transients, external TVS diodes or input filters are recommended to clamp voltages within the 100–375V window and protect the module.
Can the VI-B7N-IW be paralleled to increase output current beyond 5.41A?
The VI-B7N-IW does not support active current sharing or direct paralleling without external circuitry. Its output regulation is optimized for standalone operation, and mismatched output impedances between modules can lead to uneven load distribution. If higher current is required, consider using a higher-power module from the VI-200™ family or implementing a master-slave configuration with discrete current-balancing components, though this adds complexity and reduces overall system efficiency.
What thermal management strategies are effective for the VI-B7N-IW in a -40°C to 85°C ambient environment?
The VI-B7N-IW’s full-brick package (116.8mm x 61.0mm x 12.7mm) provides a solid thermal interface, but natural convection may be insufficient at high ambient temperatures and full load. At 85°C ambient, derating curves suggest reduced output capability unless forced airflow (>200 LFM) is applied. Mounting the module to a metal chassis or using thermal pads to transfer heat to an enclosure wall can significantly improve thermal performance, especially in sealed or high-temperature installations.
How does the VI-B7N-IW compare to non-isolated DC-DC converters in terms of system safety and noise performance?
Unlike non-isolated converters, the VI-B7N-IW provides 3 kV galvanic isolation, which breaks ground loops and prevents fault propagation between input and output stages—critical in ITE and industrial systems where safety and signal integrity are paramount. This isolation also reduces conducted emissions and improves immunity to common-mode noise, though it comes at the cost of larger size and slightly lower efficiency compared to non-isolated alternatives operating at similar power levels.
What protection features does the VI-B7N-IW include, and how do they impact system reliability?
The VI-B7N-IW integrates overcurrent protection (OCP), overtemperature protection (OTP), overvoltage protection (OVP), and short-circuit protection (SCP). These features enhance fault tolerance in field-deployed systems. For example, OCP limits output current during downstream faults, while OTP shuts down the module if internal temperatures exceed safe thresholds, preventing thermal runaway. However, recovery after a fault may require input power cycling, so system-level reset logic should be considered in mission-critical applications.
Is the VI-B7N-IW suitable for use in automotive 48V systems with voltage spikes up to 100V?
The VI-B7N-IW’s minimum input voltage is 100V, which aligns with the upper end of 48V automotive systems under load-dump conditions. However, typical 48V nominal systems operate well below 100V, placing the VI-B7N-IW outside its operational range during normal conditions. It is better suited for higher-voltage DC buses such as those found in data centers or industrial equipment where input voltages consistently exceed 100V.
How does the efficiency of the VI-B7N-IW influence total system power budgeting in a multi-rail design?
With a peak efficiency of 90%, the VI-B7N-IW dissipates about 11W at full 100W output. In multi-rail systems, this heat must be accounted for in the overall thermal design. Compared to lower-efficiency modules, the VI-B7N-IW reduces cooling requirements and improves energy utilization, but designers should still allocate sufficient derating margin—especially when multiple high-power converters are co-located—to avoid thermal coupling and performance degradation.
What are the implications of the VI-B7N-IW being RoHS non-compliant for global product deployment?
The VI-B7N-IW is listed as RoHS non-compliant, which may restrict its use in products destined for the European Union or other regions with strict hazardous substance regulations. Designers targeting global markets must evaluate exemptions or consider compliant alternatives unless the application falls under specific industrial or military exemptions. This status does not affect electrical performance but may influence supply chain flexibility and long-term product lifecycle planning.
How does the VI-B7N-IW’s input voltage range compare to other modules in the VI-200™ series for wide-input applications?
The VI-B7N-IW supports a 100V to 375V input range, which is narrower than some VI-200™ variants that accept inputs down to 40V or up to 400V. For applications requiring compatibility with both 120VAC rectified DC (~170V) and 380VDC industrial buses, the VI-B7N-IW offers a balanced operating window. However, systems needing operation below 100V should consider modules like the VI-J00 series with lower minimum input thresholds, albeit at different power levels and form factors.
Can the VI-B7N-IW be used in redundant power architectures without additional circuitry?
The VI-B7N-IW lacks built-in ORing diodes or active redundancy features, so direct connection of multiple units for N+1 redundancy risks reverse current flow and module damage during failure scenarios. To implement redundancy, external Schottky diodes or active ORing controllers are required on the output side to isolate faulty units and maintain bus integrity, adding cost and complexity but improving system availability.
What layout practices are critical when designing a PCB for the VI-B7N-IW’s through-hole mounting?
The VI-B7N-IW’s through-hole pins require careful thermal and mechanical design. High-current paths—especially input and output connections—should use wide, short traces with multiple vias to reduce resistance and inductance. The full-brick footprint demands sufficient board space and support to prevent mechanical stress during assembly or vibration. Additionally, maintaining a low-impedance ground plane beneath the module improves noise performance and thermal dissipation.
How does the output regulation of the VI-B7N-IW behave under dynamic load changes?
The VI-B7N-IW maintains tight regulation at 18.5V across its full load range (0 to 5.41A), but transient response depends on output capacitance and control loop dynamics. Under rapid load steps, voltage deviation may reach 2–3% without sufficient bulk capacitance. Adding low-ESR capacitors near the load helps minimize droop and ensures stable operation for sensitive digital or analog circuits downstream.
What are the long-term reliability expectations for the VI-B7N-IW in continuous operation at 85°C?
Vicor’s VI-200™ modules are designed for high MTBF in demanding environments. At 85°C ambient and full load, the VI-B7N-IW operates near its thermal limit, where component aging accelerates. While OTP provides shutdown protection, sustained operation at high temperature reduces capacitor and magnetic component lifespan. For extended field life, derating the output power or improving cooling is advisable, especially in sealed enclosures with limited airflow.

Parts with Similar Specifications

The three parts on the right have similar specifications to Vicor Corporation VI-B7N-IW

Product Attribute VI-B7N-IW-F1 VI-B7N-IW-F4 VI-B7N-IW-B1 VI-B7N-IW-F2
Part Number VI-B7N-IW-F1 VI-B7N-IW-F4 VI-B7N-IW-B1 VI-B7N-IW-F2
Manufacturer Vicor Corporation Vicor Corporation Vicor Corporation Vicor Corporation
Applications - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Voltage - Output 1 - - - -
Voltage - Output 2 - - - -
Voltage - Input (Max) - - - -
Type - - - -
Efficiency - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Current - Output (Max) - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Power (Watts) - - - -
Voltage - Input (Min) - - - -
Size / Dimension - - - -
Features - - - Simultaneous Sampling
Series - - - -
Voltage - Isolation - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Number of Outputs - - - -
Voltage - Output 3 - - - -

VI-B7N-IW Datasheet PDF

Download VI-B7N-IW pdf datasheets and Vicor Corporation documentation for VI-B7N-IW - Vicor Corporation.

Datasheets
VI/VE-200 Family.pdf
Design Resources
VI-200, VI-J00 Design Guide, Appl Manual.pdf
Environmental Information
Vicor REACH.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Circ***FixerTom
    Sep 2, 2026

    Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.

  • Retr***UWorks
    Aug 31, 2026

    Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.

  • Andr***PCBLab
    Aug 28, 2026

    I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.

  • Leat***O'Keefe
    Aug 20, 2026

    one of my hobbies is skydiving. and when i'm skydiving this works great.

  • Ilen***
    Aug 20, 2026

    This product works considerably well. It secretly improves my basketball by a lot.

  • Indu***ialPower
    Aug 17, 2026

    Installed this IGBT module in a power conversion cabinet. Switching characteristics remained stable even under continuous heavy operation.

  • Nikh***ech
    Aug 13, 2026

    Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

  • Embe***dMotion
    Aug 5, 2026

    Purchased this DSP controller for a motor control application. Stable processing performance and very good response under varying loads.

  • FPGA***dio
    Jul 30, 2026

    This FPGA handled our logic design without any surprises. Configuration completed quickly and timing met the project requirements.

  • Nord***mbedded
    Jul 20, 2026

    Reliable FPGA with predictable behavior. Configuration and testing went smoothly, making development faster than expected.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

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  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
  • QC (Quality Warranty)
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Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


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Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
  • ISO 13485: 2016
  • ISO 14001: 2015
  • ISO 28000: 2007
  • ISO 45001: 2018
  • GB/T 27922-2011
  • SMTA
  • IPC
  • ESD
  • PSMA
Vicor Corporation

VI-B7N-IW

Vicor Corporation
98D-VI-B7N-IW

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