Overview
The STPS140AFN is a 40 V, 1 A power Schottky rectifier produced by STMicroelectronics. This component is designed for use in switched mode power supplies and high frequency DC to DC converters. It is packaged in the SMA Flat Notch format, which is a surface mount miniature package. The STPS140AFN is known for its low forward voltage drop, negligible switching losses, and very small conduction losses, making it ideal for applications requiring high efficiency and reliability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VRRM (Repetitive peak reverse voltage) | 40 | V |
| IF(AV) (Average forward current) | 1 | A |
| IF(RMS) (Forward rms current) | 7 | A |
| IFSM (Surge non-repetitive forward current) | 60 | A |
| VF(typ.) (Forward voltage drop at 1 A) | 0.43 | V |
| Tj(max.) (Maximum junction temperature) | 150 | °C |
| Tstg (Storage temperature range) | -65 to +150 | °C |
| Rth(j-l) (Junction to lead thermal resistance) | 20 | °C/W |
Key Features
- Low forward voltage drop (VF(typ.) = 0.43 V at 1 A)
- Negligible switching losses
- Very small conduction losses
- Avalanche rated
- ECOPACK2 compliant for environmental sustainability
- Surface mount miniature packages (SMA Flat Notch)
- High frequency operation suitability
Applications
- Switched mode power supplies
- High frequency DC to DC converters
- Reverse polarity protection
- Set-top box power supply
- TV power supply
- Battery chargers
- Low voltage, high frequency inverters and free-wheeling applications
Q & A
- What is the maximum repetitive peak reverse voltage of the STPS140AFN?
The maximum repetitive peak reverse voltage (VRRM) is 40 V.
- What is the average forward current rating of the STPS140AFN?
The average forward current (IF(AV)) is 1 A.
- What is the typical forward voltage drop at 1 A for the STPS140AFN?
The typical forward voltage drop (VF(typ.)) at 1 A is 0.43 V.
- What is the maximum junction temperature for the STPS140AFN?
The maximum junction temperature (Tj(max.)) is 150 °C.
- Is the STPS140AFN environmentally compliant?
- What are the common applications of the STPS140AFN?
- What package types are available for the STPS140?
The STPS140 is available in SMA, SMA Flat Notch, and SMB packages.
- What is the surge non-repetitive forward current rating of the STPS140AFN?
The surge non-repetitive forward current (IFSM) is 60 A.
- What is the thermal resistance from junction to lead for the SMA Flat Notch package?
The thermal resistance from junction to lead (Rth(j-l)) for the SMA Flat Notch package is 20 °C/W.
- What is the storage temperature range for the STPS140AFN?
The storage temperature range (Tstg) is -65 to +150 °C.
