Overview
The STPS340UF, produced by STMicroelectronics, is a 40 V, 3 A power Schottky rectifier designed for high-performance applications. This single-chip Schottky rectifier is optimized for use in switch-mode power supplies and high-frequency DC to DC converters. It is available in various surface mount packages, including SMA Flat Notch, SMB, SMB Flat, SMC, and DPAK, making it versatile for different design requirements.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VRRM (Repetitive peak reverse voltage) | 40 | V |
| IF(AV) (Average forward current) | 3 | A |
| IF(RMS) (Forward rms current) | 6 (DPAK) | A |
| IFSM (Surge non-repetitive forward current) | 105 A (SMA Flat Notch), 75 A (All others) | A |
| PARM (Repetitive peak avalanche power) | 90 | W |
| Tstg (Storage temperature range) | -65 to +150 | °C |
| Tj (Maximum operating junction temperature) | +150 | °C |
| VF (Forward voltage drop) | 0.52 V (Typical at 25°C), 0.57 V (Maximum at 125°C) | V |
| IR (Reverse leakage current) | 2 mA (Typical at 125°C) | mA |
| Rth(j-a) (Thermal resistance junction to ambient) | 20 °C/W (SMA Flat Notch), 25 °C/W (SMB), 15 °C/W (SMB Flat), 20 °C/W (SMC), 5.5 °C/W (DPAK) | °C/W |
Key Features
- Very small conduction losses
- Negligible switching losses
- Low forward voltage drop
- Low thermal resistance
- Extremely fast switching
- Avalanche rated
- Surface mount package options (SMA Flat Notch, SMB, SMB Flat, SMC, DPAK)
- ECOPACK2 component for environmental compliance
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 operating junction temperature of the STPS340UF? The maximum operating junction temperature is +150°C.
- What are the available package options for the STPS340UF? The STPS340UF is available in SMA Flat Notch, SMB, SMB Flat, SMC, and DPAK packages.
- What is the typical forward voltage drop of the STPS340UF at 25°C? The typical forward voltage drop at 25°C is 0.52 V.
- What is the repetitive peak reverse voltage of the STPS340UF? The repetitive peak reverse voltage is 40 V.
- What are the typical applications of the STPS340UF? Typical applications include telecom power supply, set-top box power supply, TV power supply, battery charger, and low voltage, high frequency inverters.
- What is the thermal resistance junction to ambient for the SMA Flat Notch package? The thermal resistance junction to ambient for the SMA Flat Notch package is 20 °C/W.
- Is the STPS340UF avalanche rated? Yes, the STPS340UF is avalanche rated.
- What is the storage temperature range for the STPS340UF? The storage temperature range is -65 to +150 °C.
- What is the surge non-repetitive forward current for the SMA Flat Notch package? The surge non-repetitive forward current for the SMA Flat Notch package is 105 A.
- Does the STPS340UF meet environmental compliance standards? Yes, the STPS340UF is available in ECOPACK2, which meets environmental compliance standards.
