Overview
The STPS340S, produced by STMicroelectronics, is a single chip Schottky rectifier designed for switch mode power supplies and high frequency DC to DC converters. This component is packaged in an SMC (Surface Mount Component) package, making it ideal for surface mounting. It is particularly suited 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) | 3 | A |
| IF(RMS) (Forward rms current) - DPAK | 6 | A |
| IFSM (Surge non repetitive forward current) - tp = 10 ms sinusoidal | 75 | A |
| VF(typ.) (Forward voltage drop) - Tj = 25 °C, IF = 3 A | 0.52 | V |
| Tj(max.) (Maximum operating junction temperature) | 150 | °C |
| Tstg (Storage temperature range) | -65 to +150 | °C |
| Rth(j-a) (Thermal resistance junction to ambient) - SMC | 20 | °C/W |
Key Features
- Very small conduction losses
- Negligible switching losses
- Low forward voltage drop
- Low thermal resistance
- Extremely fast switching
- Surface mount package
- Avalanche rated
- ECOPACK2 component, meeting environmental compliance standards
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 (VRRM) of the STPS340S?
The maximum repetitive peak reverse voltage (VRRM) is 40 V.
- What is the average forward current (IF(AV)) of the STPS340S?
The average forward current (IF(AV)) is 3 A.
- What is the typical forward voltage drop (VF) at 25 °C and IF = 3 A?
The typical forward voltage drop (VF) at 25 °C and IF = 3 A is 0.52 V.
- What is the maximum operating junction temperature (Tj) of the STPS340S?
The maximum operating junction temperature (Tj) is 150 °C.
- What types of packages are available for the STPS340?
The STPS340 is available in SMA Flat Notch, SMB, SMB Flat, SMC, and DPAK packages.
- Is the STPS340S environmentally compliant?
Yes, the STPS340S is an ECOPACK2 component, which meets environmental compliance standards.
- What are some common applications of the STPS340S?
Common applications include telecom power supply, set-top box power supply, TV power supply, battery chargers, and low voltage, high frequency inverters.
- What is the thermal resistance junction to ambient (Rth(j-a)) for the SMC package?
The thermal resistance junction to ambient (Rth(j-a)) for the SMC package is 20 °C/W.
- What is the surge non-repetitive forward current (IFSM) for the STPS340S?
The surge non-repetitive forward current (IFSM) is 75 A for tp = 10 ms sinusoidal.
- What is the storage temperature range (Tstg) for the STPS340S?
The storage temperature range (Tstg) is -65 to +150 °C.
