Overview
The STPS140AY is a 40 V, 1 A power Schottky rectifier produced by STMicroelectronics. This component is designed for surface mounting and is particularly suited for use in switched mode power supplies, high frequency DC to DC converters, low voltage high frequency inverters, free-wheeling, and polarity protection applications. The STPS140AY is packaged in the SMA (JEDEC DO-214AC) format, making it ideal for compact and efficient designs. It is also AEC-Q101 qualified and ECOPACK®2 compliant, ensuring high reliability and environmental sustainability.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Repetitive Peak Reverse Voltage | VRRM | 40 | V |
| Average Forward Current | IF(AV) | 1 | A |
| Maximum Junction Temperature | Tj(max) | 150 | °C |
| Maximum Forward Voltage Drop | VF(max) | 0.5 | V |
| Surge Non-Repetitive Forward Current | IFSM | 60 | A |
| Repetitive Peak Avalanche Power | PARM | 900 | W |
| Storage Temperature Range | Tstg | -65 to +150 | °C |
| Junction to Lead Thermal Resistance | Rth(j-l) | 30 | °C/W |
Key Features
- Very small conduction losses
- Negligible switching losses
- Low forward voltage drop
- Surface mount miniature packages (SMA and SMB)
- Avalanche capability specified
- AEC-Q101 qualified for automotive applications
- ECOPACK®2 compliant for environmental sustainability
Applications
- Switched mode power supplies
- High frequency DC to DC converters
- Low voltage high frequency inverters
- Free-wheeling diodes
- Polarity protection in automotive applications
- Reverse polarity protection
- Set-top box power supplies
- TV power supplies
- Battery chargers
Q & A
- What is the maximum repetitive peak reverse voltage of the STPS140AY?
The maximum repetitive peak reverse voltage is 40 V.
- What is the average forward current rating of the STPS140AY?
The average forward current rating is 1 A.
- What is the maximum junction temperature for the STPS140AY?
The maximum junction temperature is 150 °C.
- What is the typical forward voltage drop of the STPS140AY?
The typical forward voltage drop is 0.43 V at 25 °C and 1 A.
- Is the STPS140AY suitable for automotive applications?
Yes, it is AEC-Q101 qualified for automotive applications.
- What are the package options for the STPS140AY?
The STPS140AY is available in SMA (JEDEC DO-214AC) and SMB (JEDEC DO-214AA) packages.
- What is the surge non-repetitive forward current rating of the STPS140AY?
The surge non-repetitive forward current rating is 60 A for a 10 ms sinusoidal pulse.
- Is the STPS140AY environmentally compliant?
Yes, it is ECOPACK®2 compliant.
- What is the storage temperature range for the STPS140AY?
The storage temperature range is -65 to +150 °C.
- What is the junction to lead thermal resistance of the STPS140AY in SMA package?
The junction to lead thermal resistance is 30 °C/W.
