Overview
The STPS40120CT is a dual center tap Schottky rectifier produced by STMicroelectronics. This device is specifically designed for high-frequency switch-mode power supplies and is packaged in the TO-220AB and TO-220AB narrow leads configurations. It is optimized for use in applications such as notebook and LCD adapters, desktop SMPS, and other high-frequency power conversion systems. The STPS40120CT offers a high junction temperature capability, low leakage current, and a good trade-off between leakage current and forward voltage drop, making it a reliable choice for various power supply applications.
Key Specifications
| Symbol | Parameter | Value | Unit |
|---|---|---|---|
| VRRM | Repetitive peak reverse voltage | 120 | V |
| IF(RMS) | Forward rms current | 30 | A |
| IF(AV) | Average forward current (per diode) | 20 | A |
| IFSM | Surge non-repetitive forward current | 200 | A |
| PARM | Repetitive peak avalanche power | 755 | W |
| Tstg | Storage temperature range | -65 to +175 | °C |
| Tj | Maximum operating junction temperature | 175 | °C |
| VF (typ.) | Forward voltage drop at IF = 20 A | 0.69 | V |
| IR (max.) | Reverse leakage current at VR = VRRM | 25 µA (at 25°C), 12 mA (at 125°C) | µA/mA |
Key Features
- High junction temperature capability up to 175°C
- Avalanche rated for robust operation under transient conditions
- Low leakage current to minimize power losses
- Good trade-off between leakage current and forward voltage drop
- ECOPACK®2 compliant, ensuring environmental compliance
- Fast recovery speed, suitable for high-frequency applications
- Lead-free and RoHS compliant, aligning with industrial safety and environmental standards
- Unlimited moisture sensitivity level (MSL) for high reliability in varying humidity conditions
Applications
- Switching diodes in high-frequency switch-mode power supplies
- SMPS (Switch-Mode Power Supplies)
- DC/DC converters
- LED lighting systems
- Notebook adapters
- Desktop power supplies
- Solar inverters and uninterrupted power supply systems
Q & A
- What is the maximum repetitive peak reverse voltage of the STPS40120CT?
The maximum repetitive peak reverse voltage (VRRM) is 120 V.
- What is the average forward current rating per diode for the STPS40120CT?
The average forward current (IF(AV)) per diode is 20 A.
- What is the maximum operating junction temperature of the STPS40120CT?
The maximum operating junction temperature (Tj) is 175°C.
- What is the typical forward voltage drop at 20 A for the STPS40120CT?
The typical forward voltage drop (VF) at 20 A is 0.69 V.
- Is the STPS40120CT RoHS compliant?
- What are the common applications of the STPS40120CT?
- What is the package type of the STPS40120CT?
The device is packaged in TO-220AB and TO-220AB narrow leads configurations.
- What is the storage temperature range for the STPS40120CT?
The storage temperature range (Tstg) is -65 to +175°C.
- What is the repetitive peak avalanche power rating of the STPS40120CT?
The repetitive peak avalanche power (PARM) is 755 W.
- Is the STPS40120CT suitable for high-frequency applications?
