About us Contact Us Submit BOM
RFQs(0)
English
Close Menu
View All

Please refer to the English Version as our Official Version.Return

Europe
France(Français) Germany(Deutsch) Italy(Italia) Russian(русский) Poland(polski) Czech(Čeština) Luxembourg(Lëtzebuergesch) Netherlands(Nederland) Iceland(íslenska) Hungarian(Magyarország) Spain(español) Portugal(Português) Turkey(Türk dili) Bulgaria(Български език) Ukraine(Україна) Greece(Ελλάδα) Israel(עִבְרִית) Sweden(Svenska) Finland(Svenska) Finland(Suomi) Romania(românesc) Moldova(românesc) Slovakia(Slovenská) Denmark(Dansk) Slovenia(Slovenija) Slovenia(Hrvatska) Croatia(Hrvatska) Serbia(Hrvatska) Montenegro(Hrvatska) Bosnia and Herzegovina(Hrvatska) Lithuania(lietuvių) Spain(Português) Switzerland(Deutsch) United Kingdom(English)
Asia/Pacific
Japan(日本語) Korea(한국의) Thailand(ภาษาไทย) Malaysia(Melayu) Singapore(Melayu) Vietnam(Tiếng Việt) Philippines(Pilipino)
Africa, India and Middle East
United Arab Emirates(العربية) Iran(فارسی) Tajikistan(فارسی) India(हिंदी) Madagascar(malaɡasʲ)
South America / Oceania
New Zealand(Maori) Brazil(Português) Angola(Português) Mozambique(Português)
North America
United States(English) Canada(English) Haiti(Ayiti) Mexico(español)
HomeProductsPower Supplies - (Board Mount)DC DC ConvertersVI-2NK-CW-S
VI-2NK-CW-S Image
VI-2NK-CW-S Image - 1
Image may be representation.
See specifications for product details.
Share
 Favorite
EXPRESS OPTION
Payment method

VI-2NK-CW-S - Vicor Corporation

Manufacturer Part Number
VI-2NK-CW-S
Manufacturer
Vicor
Allelco Part Number
98D-VI-2NK-CW-S
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
48,222 pcs available, New & Original
Parts Description
DC DC CONVERTER 40V 100W
Package
Full Brick
Data sheet
VI-2NK-CW-S.pdf

Environmental Information

Vicor REACH.pdf
RoHs Status
 
Compare
Our certification
In stock: 48222

Required fields are indicated by an asterisk (*)
Please send RFQ, we will respond immediately.

Quantity

Specifications

VI-2NK-CW-S Tech Specifications
Vicor Corporation - VI-2NK-CW-S technical specifications, attributes, parameters and parts with similar specifications to Vicor Corporation - VI-2NK-CW-S

Product Attribute Attribute Value
Manufacturer Vicor
Voltage - Output 3 -
Voltage - Output 2 -
Voltage - Output 1 40V
Voltage - Isolation 3 kV
Voltage - Input (Min) 36V
Voltage - Input (Max) 76V
Type Isolated Module
Size / Dimension 4.60' L x 1.80' W x 0.52' H (116.8mm x 45.7mm x 13.2mm)
Series VI-200™ (100W)
Power (Watts) 100 W
Product Attribute Attribute Value
Package / Case Full Brick
Package Bulk
Operating Temperature -25°C ~ 85°C
Number of Outputs 1
Mounting Type Through Hole
Features OCP, OTP, OVP, SCP
Efficiency 90%
Current - Output (Max) 2.5A
Base Product Number VI-2NK
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 electrical characteristics of the VI-2NK-CW-S isolated DC-DC converter that make it suitable for high-voltage industrial applications?
The VI-2NK-CW-S operates across a wide input voltage range of 36V to 76V, making it ideal for applications with fluctuating or elevated supply voltages common in industrial environments. It delivers a stable 40V output at up to 2.5A continuous current, supporting 100W total power delivery. With an isolation rating of 3 kV, it provides robust protection against electrical noise and fault conditions, which is critical in systems where galvanic separation is required between input and output stages.
How does the efficiency rating of the VI-2NK-CW-S compare to other Vicor VI-200 series modules under typical load conditions?
The VI-2NK-CW-S achieves 90% efficiency under nominal operating conditions, which is consistent with the broader performance profile of the VI-200 series. This level of efficiency minimizes thermal dissipation and reduces the need for extensive heatsinking, especially important given its compact full-brick footprint. When compared to earlier generations or competitive non-isolated converters, this efficiency enables higher power density while maintaining thermal stability within the -25°C to 85°C operating range.
Can the VI-2NK-CW-S be used in telecom infrastructure, and what design considerations apply?
While the VI-2NK-CW-S supports ITE (Information Technology Equipment) applications and can function in telecom subsystems, its RoHS non-compliant status may restrict use in certain regulated regions. Engineers must evaluate supply chain constraints and regulatory requirements early in the design phase. Additionally, despite the 3 kV isolation, care must be taken in layout to maintain creepage and clearance distances, particularly in high-humidity or dusty environments.
What protection mechanisms are embedded in the VI-2NK-CW-S, and how do they influence system reliability?
The VI-2NK-CW-S includes over-current protection (OCP), over-temperature protection (OTP), over-voltage protection (OVP), and short-circuit protection (SCP). These features prevent damage during fault events such as output shorts or input transients. For example, OCP limits current draw to safe levels without shutdown, allowing continued operation after fault removal—enhancing system resilience in mission-critical setups.
How does the physical size and mounting style of the VI-2NK-CW-S affect board integration in space-constrained designs?
Measuring 116.8mm x 45.7mm x 13.2mm, the VI-2NK-CW-S uses a full-brick form factor designed for through-hole mounting. This allows secure mechanical attachment but requires careful PCB real estate planning. Its height may limit placement beneath tall components, and double-sided assembly increases complexity. However, the standardized footprint simplifies compatibility with legacy carrier boards used in industrial power systems.
Is the VI-2NK-CW-S compatible with paralleling for increased output current, and what precautions are necessary?
Paralleling the VI-2NK-CW-S outputs is generally not recommended due to potential circulating currents between units unless external balancing resistors or active control circuitry are implemented. Vicor typically supports paralleling only with specific controller-enabled configurations or specialized modules. For most applications, engineers should instead use a single unit capable of meeting peak demands or select a higher-current variant from the VI-200 family if available.
What are the implications of the VI-2NK-CW-S’s RoHS non-compliance for global product certification?
As a RoHS non-compliant part, the VI-2NK-CW-S cannot be used in end-products sold into the European Union or other markets enforcing strict hazardous substance restrictions. This affects compliance with directives like WEEE and restricts market access. Designers must either source an equivalent RoHS-compliant alternative or justify use through exemption pathways, which adds documentation overhead and may delay time-to-market.
How does the VI-2NK-CW-S perform thermally under continuous 100W load, and what cooling strategies are advised?
Under full 100W load, the VI-2NK-CW-S generates approximately 11.1W of heat (based on 90% efficiency). Due to its metal baseplate design, thermal management relies heavily on conduction through a heatsink attached directly to the bottom surface. Engineers should ensure low thermal impedance interface materials and adequate airflow, especially near the 85°C maximum junction temperature. Without forced convection, natural convection alone may lead to derating in enclosed systems.
What distinguishes the VI-2NK-CW-S from other variants in the VI-2NK base product line?
The VI-2NK-CW-S is one of several output voltages within the VI-2NK family, all sharing identical input ranges, power ratings, and packaging. The “CW” suffix indicates a 40V output configuration; others may offer 12V, 24V, or 3.3V outputs. Selection depends on downstream load requirements, with minimal differences in protection features or efficiency curves. Always verify output voltage accuracy (±2% typical) when choosing among variants.
Can the VI-2NK-CW-S operate reliably in automotive environments, given its specified temperature range?
The VI-2NK-CW-S is rated for -25°C to 85°C, which falls short of the AEC-Q100 qualification needed for full automotive-grade operation. While it might survive brief exposure to automotive-grade thermal extremes, long-term reliability under vibration, humidity cycling, or EMI stress is unverified. For automotive use, a certified automotive module from Vicor or another supplier should be considered instead.
How does input ripple and output regulation affect system performance when using the VI-2NK-CW-S in precision analog circuits?
Although not explicitly detailed in the summary, isolated DC-DC converters like the VI-2NK-CW-S typically exhibit input-to-output ripple coupling on the order of millivolts under typical loads. In sensitive analog front-ends, additional post-regulation filtering may be required. The 40V output regulation is typically ±2%, sufficient for most digital logic rails but marginal for ultra-precision analog supplies without further conditioning.
Are there any known limitations regarding transient response when the VI-2NK-CW-S switches between light and heavy loads?
Transient response characteristics depend largely on the connected load capacitance and the application’s dynamic behavior. The VI-2NK-CW-S is optimized for steady-state performance rather than aggressive transient loads. Sudden changes in demand may cause output voltage deviations exceeding 5% temporarily. If fast recovery is critical, local bulk capacitance at the output or a secondary linear regulator stage may be advisable.
What is the significance of the Moisture Sensitivity Level (MSL) classification for the VI-2NK-CW-S?
The VI-2NK-CW-S has an MSL rating of Not Applicable, indicating it is not subject to moisture absorption risks associated with surface-mount devices undergoing reflow soldering. This simplifies handling in high-volume manufacturing and reduces the need for baking before assembly, streamlining logistics and reducing production bottlenecks in automated pick-and-place lines.

Parts with Similar Specifications

The three parts on the right have similar specifications to Vicor Corporation VI-2NK-CW-S

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

VI-2NK-CW-S Datasheet PDF

Download VI-2NK-CW-S pdf datasheets and Vicor Corporation documentation for VI-2NK-CW-S - Vicor Corporation.

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

Customers Also Interested in

Recommended Products

Customer Reviews

Evaluation: 10 Articles

  • ECUb***h
    Sep 22, 2026

    Used for repair of an older automotive ECU. The MCU was recognized by our programming setup and verification completed without errors. The repaired board now starts and communicates normally.

  • RS48***ieldTech
    Sep 16, 2026

    Put this transceiver into an RS-485 interface used around industrial equipment. Communication remained reliable during testing with motors switching nearby. Good result for the replacement board.

  • Logi***b_Chris
    Sep 8, 2026

    Purchased for a Cyclone III development project. The FPGA configured on the first attempt and has been stable through repeated power cycles. No problems with the I/O we are using.

  • 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.

Write a Review

Your Email address will not be published.

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

  1. Use your express account for shipment if you have one.
  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)
  • Payment Support
  • Packaging
  • Certifications & Memberships

QC (Quality Warranty)

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.


Strict quality inspection builds a solid foundation for electronic component quality.
  1. Visual inspection
  2. Performance testing and reliability verification
  3. Standardized full-process testing
  4. Precise control of every parameter
We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
Quality Inspection
Quality Inspection Image - 01
Quality Inspection Image - 02
Quality Inspection Image - 03
Quality Inspection Image - 04

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.
  • HKBea
  • Paypal
  • MasterCard
  • Western-Union
  • VISA
Stable Delivery, Sincere Partnership — Your Faithful Supply Chain Partner
  • Efficient Supply Management
  • Cost-Saving Procurement
  • Fast Sourcing & Delivery
Contact us if you have any questions.

Packaging

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
VI-2NK-CW-S Image

VI-2NK-CW-S

Vicor Corporation
98D-VI-2NK-CW-S

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

Allelco
About Us
History
Certifications
Recruitment
Policies
Terms & Conditions
Privacy Policy
Cookie Policy
Services
Order Tracking
Return & Replacement
Frequently Asked Questions
Contact Us
Order
Shipping & Delivering
Payment Methods
My Account
The BlogsHot PartsChange LanguageNewsSite map
Contact Us
Headquarters Address:
Room C 13/F Harvard Commercial Building
105-111 Thomson Road Wan Chai
HongKong
Service Tel: +852-91464856
Service Email: info@allelco.com
Follow us
Copyright © 2012-2025 AllelcoElec.com. All rights reserved.
0 RFQ
Shopping cart (0 Items)
It is empty.
Submit RFQ
Compare List (0 Items)
It is empty.
Feedback

Your feedback matters! At Allelco, we value the user experience and strive to improve it constantly.
Please share your comments with us via our feedback form, and we'll respond promptly.
Thank you for choosing Allelco.

Subject
E-mail
Comments
Captcha
Drag or click to upload file
Upload File
types: .xls, .xlsx, .doc, .docx, .jpg, .png and .pdf.
Max file size: 10MB