Overview
The STPS40L15CW is a dual center tap Schottky rectifier produced by STMicroelectronics. It is packaged in the TO-247 format and is specifically designed for use as an OR-ing diode in fault-tolerant power supply equipment. This device is optimized for applications requiring low forward voltage drop and high reliability in power supply systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Repetitive Peak Reverse Voltage (VRRM) | 15 | V |
| Average Forward Current (IF(AV)) | 40 A (Total), 20 A (Per Diode) | A |
| Forward Current RMS (IF(RMS)) | 30 A | A |
| Surge Non-Repetitive Forward Current (IFSM) | 310 A | A |
| Maximum Operating Junction Temperature (Tj) | 125 °C | °C |
| Forward Voltage Drop (VF) | 0.33 V (Typ. at IF = 40 A, Tj = 125 °C) | V |
| Storage Temperature Range (Tstg) | -65 to +150 °C | °C |
| Junction to Case Thermal Resistance (Rth(j-c)) | 1.6 °C/W (Per Diode), 0.85 °C/W (Total) | °C/W |
Key Features
- Very low forward voltage drop for less power dissipation and reduced heatsink size.
- Reverse voltage suited to OR-ing of 3 V, 5 V, and 12 V rails.
- Avalanche capability specified.
- High frequency operation.
- Optimized for OR-ing applications.
Applications
The STPS40L15CW is particularly suited for use in fault-tolerant power supply equipment, including but not limited to:
- OR-ing diodes in redundant power supply systems.
- High-reliability power supply applications.
- Systems requiring low power dissipation and reduced heatsink size.
Q & A
- What is the maximum operating junction temperature of the STPS40L15CW?
The maximum operating junction temperature is 125 °C. - What are the typical forward voltage drop values for the STPS40L15CW?
The forward voltage drop is typically 0.33 V at IF = 40 A and Tj = 125 °C. - What are the package options available for the STPS40L15C series?
The device is available in TO-220AB and TO-247 packages. - What is the repetitive peak reverse voltage (VRRM) of the STPS40L15CW?
The repetitive peak reverse voltage is 15 V. - What is the average forward current rating for the STPS40L15CW?
The total average forward current is 40 A, with 20 A per diode. - What is the surge non-repetitive forward current rating for the STPS40L15CW?
The surge non-repetitive forward current is 310 A. - What is the storage temperature range for the STPS40L15CW?
The storage temperature range is -65 to +150 °C. - What is the junction to case thermal resistance for the STPS40L15CW?
The junction to case thermal resistance is 1.6 °C/W per diode and 0.85 °C/W total. - What are the recommended torque values for the TO-247 package?
The recommended torque values for the TO-247 package are 0.9 to 1.2 N·m. - What environmental compliance does the STPS40L15CW meet?
The device meets various environmental compliance levels through ST’s ECOPACK® packages.
