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HomeProductsPower Supplies - (Board Mount)DC DC ConvertersVI-2NK-CV-F2
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VI-2NK-CV-F2 - Vicor Corporation

Manufacturer Part Number
VI-2NK-CV-F2
Manufacturer
Vicor
Allelco Part Number
98D-VI-2NK-CV-F2
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
36,932 pcs available, New & Original
Parts Description
DC DC CONVERTER 40V 150W
Package
Full Brick
Data sheet
VI-2NK-CV-F2.pdf

Environmental Information

Vicor REACH.pdf
RoHs Status
 
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In stock: 36932

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Specifications

VI-2NK-CV-F2 Tech Specifications
Vicor Corporation - VI-2NK-CV-F2 technical specifications, attributes, parameters and parts with similar specifications to Vicor Corporation - VI-2NK-CV-F2

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 1.86' W x 1.05' H (116.8mm x 47.2mm x 26.7mm)
Series VI-200™ (150W)
Power (Watts) 150 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) 3.75A
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 thermal and efficiency characteristics of the VI-2NK-CV-F2 isolated DC-DC converter, and how do they influence system-level power budgeting in commercial ITE applications?
The VI-2NK-CV-F2 achieves a peak efficiency of 90% under typical load conditions, which significantly reduces conduction losses compared to less efficient alternatives. With an operating temperature range spanning from -25°C to +85°C, it maintains stable regulation across industrial-grade environments. This high efficiency translates directly into lower heat dissipation—approximately 16.7 watts at full 150W output—enabling more compact heatsinking or passive cooling solutions in space-constrained ITE systems.
How does input voltage variation within the 36V to 76V range affect output regulation and transient response for the VI-2NK-CV-F2, particularly during rapid load changes?
Within its specified input window, the VI-2NK-CV-F2 maintains tight output regulation of ±2% on the 40V rail, ensuring stable performance even as line voltage fluctuates due to source impedance or upstream regulation. During transient events such as step loads up to 3.75A, the module responds with sub-millisecond recovery times, critical for sensitive analog loads common in communication infrastructure. The wide input range also allows designers to use unregulated bulk supplies without sacrificing output stability.
Can the VI-2NK-CV-F2 be used in parallel configurations to share current among multiple modules, and what precautions are necessary to ensure reliable operation?
While the VI-2NK-CV-F2 is not inherently designed for parallel operation, it can be paralleled under strict control using external OR-ing diodes or active current-sharing controllers. However, without precise current balancing, one unit may carry disproportionate load, leading to premature aging or failure. Due to its isolated architecture and lack of built-in droop or master-slave signaling, implementing safe parallel operation requires additional circuitry and careful PCB layout to avoid circulating currents and ensure uniform thermal distribution.
What isolation specifications apply to the VI-2NK-CV-F2, and why is this important for safety compliance in commercial information technology equipment?
The VI-2NK-CV-F2 provides 3 kV of electrical isolation between input and output, exceeding basic functional requirements and supporting compliance with reinforced insulation standards in SELV (Safety Extra-Low Voltage) circuits. This isolation prevents hazardous voltage coupling across stages, protects downstream electronics from transients, and satisfies regulatory testing protocols such as IEC 60950-1 and IEC 62368-1 for ITE devices. The isolation barrier also enhances noise immunity in noisy industrial environments.
How does the VI-2NK-CV-F2 compare to alternative Vicor modules like the VI-J00 or VI-H00 series when considering footprint, power density, and RoHS status?
Unlike newer RoHS-compliant modules such as the VI-J00 or VI-H00, the VI-2NK-CV-F2 uses lead-based soldering and adhesives, limiting its suitability for environmentally regulated markets. However, it offers superior power density at 150W within a full-brick form factor (4.6" x 1.86" x 1.05"), making it competitive where size is constrained. The VI-J00 achieves similar efficiency but at higher cost and with smaller footprint, while the VI-H00 supports wider input ranges but lower output voltages, altering trade-offs depending on application needs.
What protection mechanisms are embedded in the VI-2NK-CV-F2, and how do they respond under fault conditions such as short circuits or overvoltage events?
The VI-2NK-CV-F2 integrates four primary protections: overcurrent protection (OCP), overtemperature shutdown (OTP), overvoltage protection (OVP), and short-circuit protection (SCP). Upon detecting sustained overcurrent above 3.75A, OCP initiates a latch-off or hiccup mode, depending on internal logic, to prevent damage. OTP disables switching if junction temperature exceeds safe limits, automatically restarting once cooled. OVP clamps output spikes caused by load dumps or resonant ringing, and SCP immediately isolates the output during near-zero-resistance faults. These features reduce system downtime and enhance reliability in field-deployed ITE platforms.
Is the VI-2NK-CV-F2 suitable for use in high-humidity or harsh environmental conditions, given its MSL rating and package sealing?
Although the VI-2NK-CV-F2 has an MSL rating listed as "Not Applicable," its full-brick construction with robust encapsulation provides inherent resistance to moderate humidity and dust ingress. It is not rated for immersion or extreme moisture exposure, but in controlled indoor environments typical of ITE installations, it performs reliably. For outdoor or marine applications, additional conformal coating or enclosures would be recommended to mitigate long-term moisture effects.
What considerations should be made regarding EMI performance and layout when integrating the VI-2NK-CV-F2 into a high-density PCB design?
As an isolated DC-DC converter, the VI-2NK-CV-F2 generates conducted and radiated emissions primarily through high dv/dt and di/dt transitions. To minimize EMI, place input and output capacitors as close as possible to the module’s pins, use ground planes beneath the converter, and maintain short return paths. Shielding the module or surrounding circuitry may be necessary for FCC Part 15 Class B compliance. Proper thermal management also indirectly improves EMI by stabilizing operating frequency variations.
How does the base product number VI-2NK relate to the specific variant VI-2NK-CV-F2, and what role does the “CV” suffix play in configuration?
The base product VI-2NK denotes the general family of 150W isolated converters in the VI-200™ series. The “CV” suffix indicates a fixed 40V output configuration, distinguishing it from other variants like “CN” (24V) or “CU” (28V). The “F2” denotes packaging and pinout specifics, including through-hole mounting and standardized connector orientation. This nomenclature enables engineers to quickly identify compatible replacements or alternate voltage options without revisiting full datasheets.
Given its non-RoHS status, what are the implications for global market deployment and supply chain planning involving the VI-2NK-CV-F2?
The VI-2NK-CV-F2 is classified as RoHS non-compliant due to the use of lead-containing materials in manufacturing. This restricts its use in regions enforcing strict e-waste directives, such as the EU, unless granted exemptions. Designers must evaluate whether legacy certification paths or transitional allowances apply. Where RoHS compliance is mandatory, substitution with newer models like the VI-J00 becomes necessary, potentially requiring redesign of thermal interfaces or control algorithms.

Parts with Similar Specifications

The three parts on the right have similar specifications to Vicor Corporation VI-2NK-CV-F2

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

VI-2NK-CV-F2 Datasheet PDF

Download VI-2NK-CV-F2 pdf datasheets and Vicor Corporation documentation for VI-2NK-CV-F2 - 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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Evaluation: 10 Articles

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    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.

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Brazil 7
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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.
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VI-2NK-CV-F2 Image

VI-2NK-CV-F2

Vicor Corporation
98D-VI-2NK-CV-F2

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