Overview
The STPS2L40AFN is a 40 V, 2 A low drop power Schottky rectifier produced by STMicroelectronics. This component is designed for high-frequency miniature switched-mode power supplies, such as adaptors and on-board DC/DC converters. It is packaged in an SMA Flat Notch surface mount package, making it ideal for applications requiring low voltage and high frequency operation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VRRM (Repetitive peak reverse voltage) | 40 | V |
| IF(AV) (Average forward current) | 2 | A |
| Tj(max.) (Maximum operating junction temperature) | 150 | °C |
| VF(typ.) (Typical forward voltage drop at IF = 2 A) | 0.31 | V |
| 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 |
| Rth(j-l) (Junction to lead thermal resistance, SMA Flat Notch) | 20 | °C/W |
Key Features
- Very small conduction losses and negligible switching losses.
- Low forward voltage drop (typical value of 0.31 V at IF = 2 A).
- Avalanche rated.
- Surface mount miniature package (SMA Flat Notch).
- Lead-free and epoxy meets UL94, V0.
- Ideal for low voltage, high frequency inverters, free wheeling, and polarity protection applications.
Applications
- Telecom power supplies.
- Set-top box power supplies.
- TV power supplies.
- Battery chargers.
- On-board DC/DC converters.
Q & A
- What is the maximum operating junction temperature of the STPS2L40AFN?
The maximum operating junction temperature is 150 °C. - What is the typical forward voltage drop at 2 A for the STPS2L40AFN?
The typical forward voltage drop at 2 A is 0.31 V. - What is the repetitive peak reverse voltage of the STPS2L40AFN?
The repetitive peak reverse voltage is 40 V. - What is the surge non-repetitive forward current of the STPS2L40AFN?
The surge non-repetitive forward current is 75 A for a pulse duration of 10 ms sinusoidal. - What are the storage temperature ranges for the STPS2L40AFN?
The storage temperature range is -65 to +150 °C. - What package type is the STPS2L40AFN available in?
The STPS2L40AFN is available in an SMA Flat Notch package. - Is the STPS2L40AFN lead-free?
Yes, the STPS2L40AFN is lead-free. - What are some typical applications of the STPS2L40AFN?
Typical applications include telecom power supplies, set-top box power supplies, TV power supplies, and battery chargers. - What is the junction to lead thermal resistance for the SMA Flat Notch package?
The junction to lead thermal resistance is 20 °C/W. - Does the epoxy of the STPS2L40AFN meet any specific safety standards?
Yes, the epoxy meets UL94, V0 safety standards.
