Overview
The STPS2L40AF is a 40 V, 2 A low drop power Schottky rectifier produced by STMicroelectronics. It is designed for high frequency miniature switched mode power supplies, such as adaptors and on-board DC/DC converters. This single chip Schottky rectifier is packaged in an SMA Flat configuration, making it ideal for surface mounting. The device is suitable for applications requiring low voltage, high frequency inverters, free wheeling, and polarity protection.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VRRM (Repetitive peak reverse voltage) | 40 | V |
| IF(AV) (Average forward current, δ = 0.5, square wave) | 2 | A |
| IFSM (Surge non repetitive forward current, tp = 10 ms sinusoidal) | 75 | A |
| PARM (Repetitive peak avalanche power, tp = 10 µs, Tj = 125 °C) | 158 | W |
| Tstg (Storage temperature range) | -65 to +150 | °C |
| Tj (Maximum operating junction temperature) | +150 | °C |
| VF (Forward voltage drop at IF = 2 A, Tj = 25 °C) | 0.43 | V |
| IR (Reverse leakage current at VR = 40 V, Tj = 25 °C) | 220 µA | A |
Key Features
- Very small conduction losses
- Negligible switching losses
- Low forward voltage drop
- Surface mount miniature package (SMA Flat)
- Avalanche rated
- ECOPACK2 component, meeting environmental requirements
Applications
- Telecom power supply
- Set-top box power supply
- TV power supply
- Battery charger
- Low voltage, high frequency inverters
- Free wheeling and polarity protection applications
Q & A
- What is the maximum repetitive peak reverse voltage of the STPS2L40AF?
The maximum repetitive peak reverse voltage is 40 V.
- What is the average forward current rating of the STPS2L40AF?
The average forward current rating is 2 A.
- What is the maximum surge non-repetitive forward current of the STPS2L40AF?
The maximum surge non-repetitive forward current is 75 A for a 10 ms sinusoidal pulse.
- What is the maximum operating junction temperature of the STPS2L40AF?
The maximum operating junction temperature is +150 °C.
- What is the typical forward voltage drop at 2 A and 25 °C for the STPS2L40AF?
The typical forward voltage drop is 0.43 V.
- What are the common applications of the STPS2L40AF?
Common applications include telecom power supplies, set-top box power supplies, TV power supplies, battery chargers, and low voltage, high frequency inverters.
- What package types are available for the STPS2L40?
The STPS2L40 is available in SMB, SMA Flat, SMA Flat Notch, and SMB Flat packages.
- Is the STPS2L40AF environmentally compliant?
Yes, the STPS2L40AF is an ECOPACK2 component, meeting environmental requirements.
- What is the storage temperature range for the STPS2L40AF?
The storage temperature range is -65 to +150 °C.
- What is the reverse leakage current at 40 V and 25 °C for the STPS2L40AF?
The reverse leakage current is 220 µA.
