📌 What is a 1N5819?
The 1N5819 is a low-forward-voltage Schottky diode widely used in power supply rectification, reverse polarity protection, and high-efficiency DC-DC converters. Packaged in the compact SOD-123FL, it offers strong thermal stability, high reliability, and minimal reverse leakage, making it suitable for space-constrained and power-sensitive applications.
📌 1N5819 Electrical Specifications
📌 Key Features of 1N5819
- Low Forward Voltage Drop (0.55V typical at 1A) – Minimizes power loss and improves efficiency.
- Fast Switching Speed – Ideal for high-frequency applications like SMPS and switching regulators.
- High Surge Current Capability – Handles up to 30A non-repetitive surge current.
- Compact & Robust – Available in SOD-123FL package for easy PCB mounting.
📌 1N5819 Applications
- Power Supply Rectification – Efficiently converts AC to DC.
- Reverse Polarity Protection – Safeguards circuits from damage.
- DC-DC Converters & Buck/Boost Circuits – Enhances performance in switching regulators.
- Solar Panels & Battery Chargers – Reduces energy loss in low-voltage systems.
1N5819 Datasheet
📌 What is the Difference Between 1N5819 and 1N5817?
The main difference between 1N5819 and 1N5817 lies in their voltage withstand capability: 1N5819 can withstand a reverse voltage of 40V, while 1N5817 only supports 20V. Therefore, 1N5819 is more suitable for higher voltage scenarios.
📌 1N5819 Equivalent
- SS14
- SS16
❓ FAQs
Q: What is the forward voltage of 1N5819?
A: Approximately 0.55V at 1A, depending on temperature.
Q: Is 1N5819 suitable for reverse polarity protection?
A: Yes — it is commonly used in battery-driven equipment for input protection.
Q: What is the price and MOQ for 1N5819?
A: MOQ starts at 3,000 pcs, with discounted volume pricing available.
If you need bulk purchase, price quote, availability, or datasheet, contact Semiware and our sales will support you with:
- real-time stock
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📩 Contact us anytime — we’re ready to support your production needs.
About Semiware
Semiware has a comprehensive product lineup of circuit protection device products. The company leverages its technology in the semiconductor field and application background in end products to serve customers in the electronics, automotive and industrial markets. For more information, please visit semiware official website: https://en.semiware.com/
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