Overview
The STPS1L40A, produced by STMicroelectronics, is a single chip Schottky rectifier designed for use in switched mode power supplies and high frequency DC to DC converters. This component is known for its low drop power characteristics, making it ideal for applications requiring minimal conduction losses and negligible switching losses. The STPS1L40A is available in several surface mount packages, including SMA, SMA Flat Notch, SMB, and SOD123Flat, which are ECOPACK2 compliant and meet environmental standards.
Key Specifications
| Symbol | Parameter | Value | Unit |
|---|---|---|---|
| IF(AV) | Average forward current | 1 A | A |
| VRRM | Repetitive peak reverse voltage | 40 V | V |
| Tj(max.) | Operating junction temperature | 175 °C | °C |
| VF(typ.) | Forward voltage drop at IF = 1 A, Tj = 25 °C | 0.37 V | V |
| IF(RMS) | Forward rms current (SMA/SMB) | 8 A | A |
| IFSM | Surge non repetitive forward current (tp = 10 ms sinusoidal) | 60 A (SMA/SMB), 50 A (SOD123Flat) | A |
| PARM | Repetitive peak avalanche power (tp = 10 µs, Tj = 125 °C) | 65 W | W |
| Tstg | Storage temperature range | -65 to +175 °C | °C |
| Rth(j-l) | Junction to lead thermal resistance | 20-30 °C/W (depending on package) | °C/W |
Key Features
- Very small conduction losses
- Negligible switching losses
- Low forward voltage drop
- Surface mount miniature packages (SMA, SMA Flat Notch, SMB, SOD123Flat)
- Avalanche rated
- ECOPACK2 compliant, meeting environmental standards
- Low thermal resistance
Applications
- Reverse polarity protection
- Set-top box power supply
- TV power supply
- Battery charger
- Low voltage, high frequency inverters
- Free-wheeling applications
Q & A
- What is the maximum operating junction temperature of the STPS1L40A?
The maximum operating junction temperature is 175 °C.
- What is the typical forward voltage drop at 1 A and 25 °C?
The typical forward voltage drop is 0.37 V.
- What are the available package types for the STPS1L40A?
The available packages are SMA, SMA Flat Notch, SMB, and SOD123Flat.
- Is the STPS1L40A ECOPACK2 compliant?
- What is the repetitive peak reverse voltage of the STPS1L40A?
The repetitive peak reverse voltage is 40 V.
- What is the surge non-repetitive forward current rating?
The surge non-repetitive forward current is 60 A for SMA/SMB packages and 50 A for the SOD123Flat package.
- What are some common applications of the STPS1L40A?
Common applications include reverse polarity protection, set-top box power supply, TV power supply, battery charger, and low voltage, high frequency inverters.
- How does the thermal resistance vary among different packages?
The thermal resistance varies between 20-30 °C/W depending on the package type.
- What is the storage temperature range for the STPS1L40A?
The storage temperature range is -65 to +175 °C.
- Is the STPS1L40A suitable for high frequency DC to DC converters?
