The ST1803DFH is a robust and efficient power Schottky rectifier designed and manufactured by STMicroelectronics. This component is well-suited for a variety of applications that require fast switching and low voltage drop, making it a popular choice in the power management sector. The ST1803DFH is part of STMicroelectronics' Schottky rectifier portfolio, known for its high reliability and performance in high-frequency power supplies.
Key Features
- Low Forward Voltage Drop: The ST1803DFH offers a very low forward voltage drop, which results in reduced power loss and improved efficiency in the application it is used.
- High Junction Temperature: With a maximum operating junction temperature of 175°C, this device can handle high thermal conditions, ensuring reliability even under stressful conditions.
- High Surge Capability: Designed to withstand high surge currents, this rectifier is ideal for applications that may experience unexpected surge conditions.
- Avalanche Rated: The device is also avalanche rated, providing additional protection against sudden voltage spikes that could otherwise damage the rectifier.
Applications
The ST1803DFH is versatile and can be used in a wide array of applications, including:
- Switching power supplies
- Adapters and on-board DC/DC converters
- Reverse battery protection circuits
- Lighting systems
- Automotive applications
Product Specifications
| Parameter |
Value |
| Package |
TO-220FP |
| Repetitive Peak Reverse Voltage (VRRM) |
30 V |
| Average Forward Current (IF(AV)) |
18 A |
| Non-Repetitive Peak Forward Surge Current (IFSM) |
180 A |
| Operating Junction Temperature (Tj) |
-40°C to +175°C |
With its combination of efficiency, thermal performance, and surge handling capability, the ST1803DFH is a reliable choice for designers looking to optimize their power management systems.