Isolated DC DC Power Supply B0503S-1WR3

SKU: d25-13-22
In Stock
EGP 125.000 exc. vat
In Stock

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Isolated DC DC Power Supply B0503S-1WR3


B0503S-1WR3 Specifications:

  • Type: DC-DC Converter
  • Model: B0503S-1WR3
  • Package: SIP-4 (Single Inline Package, 4 pins)

Electrical Specifications:

  • Input Voltage Range: 4.5V to 5.5V (nominal 5V)
  • Output Voltage: 3.3V
  • Output Current: 303mA
  • Output Power: 1W
  • Efficiency: Up to 72%
  • Ripple & Noise: 100mVp-p (maximum)
  • Line Regulation: ±0.25%/V (maximum)
  • Load Regulation: 15% (maximum)
  • Isolation Voltage: 1000VDC (1 minute)
  • Switching Frequency: 100kHz (typical)

Environmental Specifications:

  • Operating Temperature Range: -40°C to +85°C
  • Storage Temperature Range: -55°C to +125°C
  • Humidity: 95% RH (non-condensing)

Physical Specifications:

  • Dimensions: 19.5mm x 6.0mm x 10.0mm
  • Weight: 4.2g (approximate)


  • High Efficiency: Up to 72% efficient for energy-saving operation.
  • Compact Size: Small SIP-7 package for space-constrained applications.
  • Wide Operating Temperature: Suitable for harsh environmental conditions.
  • Isolation Voltage: 1000VDC isolation ensures safe operation and noise reduction.
  • Overload Protection: Safeguards against output overcurrent conditions.
  • Continuous Short Circuit Protection: Protects the module and application in the event of a short circuit.


  • Industrial Control Systems
  • Distributed Power Supply Architectures
  • Telecommunication Equipment
  • Battery-Powered Devices
  • IoT Devices
  • Data Communication Systems


  1. Power Input: Connect the input voltage (4.5V to 5.5V) to the input pins.
  2. Output Connection: Connect the desired load to the output pins.
  3. Isolation: Ensure proper isolation in applications requiring noise reduction and safety compliance.
  4. Mounting: Integrate the SIP-4 package into the PCB layout for secure and efficient operation.

Ensure to handle and design circuits with the B0503S-1WR3 according to the manufacturer’s guidelines to achieve optimal performance and reliability.


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1. Returns and Refunds

Thank you for shopping at UGE Electronics “Https:// “. If you are not entirely satisfied with your purchase, we’re here to help.


2. Eligibility for Refund

To be eligible for a refund, please make sure that:

– The item was purchased in the last 14 days.

– The item is in the original packaging.

– The item isn’t used or damaged.


3. How to Initiate a Refund

To initiate a refund, please contact our customer support at [[email protected]] or [01066552125]. Provide your order number and details about the product you would like to return.


4. Refund Processing Time

Once we receive your item, we will inspect it and notify you that we have received your returned item. We will immediately notify you on the status of your refund after inspecting the item.

If your return is approved, we will initiate a refund to your credit card (or original method of payment). You will receive the credit within a certain amount of days, depending on your card issuer’s policies.


5. Shipping Costs

Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.


6. Exchanges

If you wish to exchange an item, please contact our customer support. You will be responsible for the return shipping costs, and we will cover the shipping costs of the replacement item.


7. Damaged or Defective Items

If you received a damaged or defective product, please contact us immediately for assistance. We will work with you to resolve the issue promptly.


8. Contact Information

If you have any questions about our Refund Policy, please contact us at [[email protected]].


Important Note: This Return & Refund Policy is applied only for Orders invoiced VIA UGE Electronics, and regarding any Orders has been invoiced VIA any Other Vendor you can check the Return & Refund Policy of this Vendor VIA the Vendor Stroe Page, and it’s not our responsibility for any issue between you and the Vendor.

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Isolated DC DC Power Supply B0503S-1WR3 EGP 125.000 exc. vat
In Stock