Overview
The STPS140U is a 40 V, 1 A power Schottky rectifier produced by STMicroelectronics. This single chip Schottky rectifier is designed for use in switched mode power supplies and high frequency DC to DC converters. It is packaged in SMA, SMA Flat Notch, and SMB surface mount miniature packages, making it ideal for surface mounting applications. The device is known for its very small conduction losses, negligible switching losses, and low forward voltage drop, which are crucial for efficient operation in various electronic systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VRRM (Repetitive peak reverse voltage) | 40 | V |
| IF(RMS) (Forward rms current) | 7 | A |
| IF(AV) (Average forward current) | 1 | A |
| IFSM (Surge non repetitive forward current) | 60 | A |
| Tj (max) (Maximum operating junction temperature) | 150 | °C |
| VF (typ) (Typical forward voltage drop) | 0.43 | V |
| Tstg (Storage temperature range) | -65 to +150 | °C |
| dV/dt (Critical rate of rise of reverse voltage) | 10000 | V/µs |
| PARM (Repetitive peak avalanche power) | 900 | W |
Key Features
- Very small conduction losses and negligible switching losses, ensuring high efficiency in power conversion.
- Low forward voltage drop (typically 0.43 V), reducing power losses during operation.
- Surface mount miniature packages (SMA, SMA Flat Notch, and SMB) for compact and efficient design.
- Avalanche capability specified, providing robustness against transient conditions.
- ECOPACK2 compliant, meeting environmental standards.
- AEC-Q101 qualified for automotive applications, ensuring reliability and performance in harsh environments.
Applications
- Switched mode power supplies.
- High frequency DC to DC converters.
- Low voltage, high frequency inverters.
- Free-wheeling diode applications.
- Polarity protection in various electronic systems.
- Set-top box power supplies.
- TV power supplies.
- Battery chargers.
- Automotive power systems due to AEC-Q101 qualification.
Q & A
- What is the maximum repetitive peak reverse voltage of the STPS140U?
The maximum repetitive peak reverse voltage (VRRM) is 40 V.
- What is the average forward current rating of the STPS140U?
The average forward current (IF(AV)) is 1 A.
- What are the typical forward voltage drop values for the STPS140U?
The typical forward voltage drop (VF) is 0.43 V at 25°C and 0.5 V at 125°C.
- What are the package options available for the STPS140U?
The device is available in SMA, SMA Flat Notch, and SMB packages.
- Is the STPS140U suitable for automotive applications?
- What is the maximum operating junction temperature of the STPS140U?
The maximum operating junction temperature (Tj) is 150°C.
- What is the storage temperature range for the STPS140U?
The storage temperature range (Tstg) is -65 to +150°C.
- Does the STPS140U have any environmental compliance certifications?
- What are some common applications of the STPS140U?
- What is the surge non-repetitive forward current rating of the STPS140U?
The surge non-repetitive forward current (IFSM) is 60 A for a 10 ms sinusoidal pulse.
