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HomeProductsPower Supplies - (Board Mount)DC DC ConvertersVE-J33-MY
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VE-J33-MY - Vicor Corporation

Manufacturer Part Number
VE-J33-MY
Manufacturer
Vicor
Allelco Part Number
32D-VE-J33-MY
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
29,645 pcs available, New & Original
Parts Description
DC DC CONVERTER 24V 50W
Package
Half Brick
Data sheet
VE-J33-MY.pdf

Environmental Information

Vicor REACH.pdf Vicor RoHS Cert.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 29645

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Specifications

VE-J33-MY Tech Specifications
Vicor Corporation - VE-J33-MY technical specifications, attributes, parameters and parts with similar specifications to Vicor Corporation - VE-J33-MY

Product Attribute Attribute Value
Manufacturer Vicor
Voltage - Output 3 -
Voltage - Output 2 -
Voltage - Output 1 24V
Voltage - Isolation 3 kV
Voltage - Input (Min) 42V
Voltage - Input (Max) 60V
Type Isolated Module
Size / Dimension 2.28' L x 2.40' W x 0.50' H (57.9mm x 70.0mm x 12.7mm)
Series VE-J00™ (50W)
Power (Watts) 50 W
Product Attribute Attribute Value
Package / Case Half Brick
Package Bulk
Operating Temperature -55°C ~ 100°C
Number of Outputs 1
Mounting Type Through Hole
Features OCP, SCP
Efficiency 90%
Current - Output (Max) 2.08A
Base Product Number VE-J33
Applications ITE (Commercial)

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) Not Applicable
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8504.40.9580

Frequently Asked Questions(FAQ)

How does the VE-J33-MY compare to other Vicor 50W half-brick converters in terms of input voltage range and isolation performance?
The VE-J33-MY operates across a 42V to 60V input range, which is narrower than some higher-power Vicor modules but optimized for industrial-grade applications requiring stable 24V output. It offers 3 kV electrical isolation—consistent with other models in the VE-J00 series—but its compact half-brick footprint makes it suitable where space constraints are critical. Compared to lower-voltage variants like the VE-J31 (which accepts 18–36V), the VE-J33-MY trades broader input flexibility for tighter regulation under high-voltage transients.
What design considerations should be made when integrating the VE-J33-MY into a system operating near its maximum input voltage of 60V?
At 60V input, derating may be necessary due to thermal constraints; the efficiency remains at 90%, but power dissipation increases proportionally with input voltage for fixed output conditions. Engineers must ensure adequate airflow or conduction cooling, especially if continuous operation occurs at full load. Additionally, transient overvoltage protection above 60V should not rely solely on this module’s tolerance, as exceeding limits can compromise reliability over time.
Can the VE-J33-MY be used in automotive environments, or is it limited strictly to ITE applications?
While the datasheet lists ITE (Information Technology Equipment) as an application, the VE-J33-MY’s extended temperature range (-55°C to +100°C) and robust construction suggest suitability beyond commercial IT. However, automotive qualification would require additional validation per AEC-Q200 standards, which are not claimed. For non-automotive industrial or telecom systems, it performs reliably, but direct automotive use without further certification carries risk.
How does the VE-J33-MY handle short-circuit conditions, and what protection mechanisms are built-in?
The module includes both overcurrent protection (OCP) and short-circuit protection (SCP), which automatically limit current during fault events and typically latch off until reset. In practice, this prevents thermal runaway and protects downstream loads. However, frequent cycling due to repeated faults may stress internal components; thus, proper fault isolation in the system design is recommended to avoid unintended restarts.
Is it feasible to parallel multiple VE-J33-MY units to increase available current beyond 2.08A?
Parallel operation is generally discouraged for isolated DC-DC converters unless specifically designed for load sharing. The VE-J33-MY lacks active current-sharing circuitry, so mismatches in output voltage or response dynamics could lead to uneven loading and potential damage. If higher current is needed, selecting a single module with greater capability—such as the VE-J00 series’ 75W or 100W variants—is a safer alternative.
What impact does the 90% efficiency of the VE-J33-MY have on thermal management at full load in a sealed enclosure?
At 50W output with 90% efficiency, approximately 5.6W is dissipated as heat. In a poorly ventilated or sealed environment, this can elevate internal component temperatures significantly. Assuming ambient air at 40°C, junction temperatures may approach 110°C or higher, nearing the upper operating limit of 100°C. Therefore, thermal modeling and possibly heatsinking are essential to maintain safe operating margins, especially during sustained high-load operation.
How does the physical size of the VE-J33-MY affect PCB layout compared to larger form-factor DC-DC converters?
Measuring 57.9mm x 70.0mm, the VE-J33-MY occupies a standard half-brick area but leaves minimal clearance around edges for airflow and soldering. Its through-hole mounting requires careful consideration of mechanical support and thermal vias under the base plate. When placed near sensitive analog circuits, magnetic interference from switching nodes should be evaluated via simulation or testing, though Vicor designs typically minimize radiated emissions.
Are there any compatibility concerns between the VE-J33-MY and third-party control ICs or monitoring systems?
Since the VE-J33-MY is a fully regulated, standalone module, it interfaces directly with input power and output load without requiring external feedback compensation. This simplifies integration but limits real-time monitoring capabilities unless augmented by external sensors. Some users connect status pins via GPIO for OCP/SCP indication, but proprietary protocols or digital control interfaces common in newer Vicor ZVS converters do not apply here.
What is the significance of the Moisture Sensitivity Level (MSL) being "Not Applicable" for the VE-J33-MY?
The MSL rating applies primarily to surface-mount devices with organic substrates. As the VE-J33-MY uses through-hole packaging and ceramic-based construction typical of high-reliability DC-DC converters, moisture sensitivity is negligible. This indicates the module can withstand normal manufacturing processes including wave soldering without special handling precautions, simplifying supply chain logistics.
How does the REACH and RoHS compliance status of the VE-J33-MY influence global market deployment?
Being RoHS3 compliant and REACH unaffected means the VE-J33-MY meets stringent European environmental regulations without restriction. This facilitates use in markets requiring full conflict mineral transparency and substance restrictions, such as Germany, France, and Scandinavia. Exporters to North America also benefit from reduced customs scrutiny, as EAR99 classification implies minimal export controls.
What trade-offs exist between using the VE-J33-MY versus a non-isolated buck converter for a 24V output from a 48V source?
Non-isolated converters eliminate isolation but reduce complexity, cost, and board spacing needs. However, they offer no galvanic separation, increasing risk of ground loops or fault propagation. The VE-J33-MY provides 3 kV isolation and inherent safety margins, albeit at higher volume and cost. For systems requiring reinforced insulation per UL 62368-1, the VE-J33-MY satisfies requirements out-of-the-box, whereas non-isolated designs demand rigorous creepage/clearance validation.
What are the implications of the ECCN classification (EAR99) for international sourcing of the VE-J33-MY?
Classified under EAR99, the VE-J33-MY is considered a commodity electronic component with minimal export restrictions. This allows relatively unrestricted distribution globally, including to entities subject to U.S. export controls, provided end-use complies with general licenses. It simplifies procurement for multinational OEMs but still requires adherence to local import regulations, such as China’s MIIT or EU dual-use screening procedures.
How reliable is the VE-J33-MY in harsh environments where input voltage transients exceed nominal levels?
Although rated for 42–60V steady-state, real-world transients—such as those from motor loads or inductive switching—can briefly exceed 60V. Vicor designs include clamping diodes and robust filtering internally, but sustained excursions risk premature aging. Empirical data suggests derating input voltage by 5–10% improves mean time between failures (MTBF), particularly in applications with frequent energy recovery events like regenerative braking systems.
Can the VE-J33-MY operate efficiently at partial loads, such as 10% of 50W?
Yes, but with reduced relative efficiency. At 10% load (5W output), efficiency typically drops below 85% due to fixed losses in switching and magnetics. While still functional, the absolute power loss remains significant (~0.8W vs. ~0.5W at full load). For low-duty-cycle applications, consider enabling sleep modes or selecting a smaller-rated converter to minimize standby losses.
What precautions are necessary when storing or transporting bulk-packaged VE-J33-MY units?
Bulk packaging implies loose parts in trays or bags without anti-static containers. Though not MSL-sensitive, ESD precautions remain important during assembly. During storage, keep away from humidity >85% RH to prevent condensation-induced corrosion on leads. Avoid mechanical shock exceeding 50G during transport to preserve solder joints and internal bond wires.
How does the VE-J33-MY’s isolation voltage rating translate into real-world safety margins for system certification?
The 3 kV isolation withstand is tested per IEC 60950/62368 standards and exceeds basic insulation requirements. For most ITE installations, this supports reinforced insulation up to 2x working voltage (e.g., 96V peak), satisfying safety agency approvals without additional barriers. However, actual system creepage distances and material group ratings must still comply locally—this module alone cannot guarantee full certification.

Parts with Similar Specifications

The three parts on the right have similar specifications to Vicor Corporation VE-J33-MY

Product Attribute VE-J33-MY-F4 VE-J33-MY-B1 VE-J33-MY-S VE-J33-MY-F3
Part Number VE-J33-MY-F4 VE-J33-MY-B1 VE-J33-MY-S VE-J33-MY-F3
Manufacturer Vicor Corporation Vicor Corporation Vicor Corporation Vicor Corporation
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Base Product Number - DAC34H84 MAX500 ADS62P42
Efficiency - - - -
Current - Output (Max) - - - -
Voltage - Isolation - - - -
Voltage - Input (Max) - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Voltage - Output 3 - - - -
Size / Dimension - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Voltage - Output 1 - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Features - - - Simultaneous Sampling
Series - - - -
Voltage - Output 2 - - - -
Voltage - Input (Min) - - - -
Power (Watts) - - - -
Type - - - -
Applications - - - -
Number of Outputs - - - -

VE-J33-MY Datasheet PDF

Download VE-J33-MY pdf datasheets and Vicor Corporation documentation for VE-J33-MY - Vicor Corporation.

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

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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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

  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
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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.


Strict quality inspection builds a solid foundation for electronic component quality.
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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
Vicor Corporation

VE-J33-MY

Vicor Corporation
32D-VE-J33-MY

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