Overview
The STPS1150AY, produced by STMicroelectronics, is a 150 V, 1 A power Schottky rectifier designed for high-efficiency applications. This component is particularly suited for switch-mode power supplies on up to 24 V rails and high-frequency converters. It is available in SMA, SMA Flat Notch, and axial packages, making it versatile for various consumer and computer applications where low forward voltage drop is crucial to reduce power dissipation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VRRM (Repetitive peak reverse voltage) | 150 | V |
| IF(AV) (Average forward current) | 1 | A |
| IFSM (Surge non-repetitive forward current) | 50 (SMA), 75 (DO-41) | A |
| Tj (max.) (Maximum operating junction temperature) | 175 | °C |
| VF(typ.) (Typical forward voltage drop) | 0.62 V (at IF = 1 A, Tj = 25 °C) | V |
| IR (Reverse leakage current) | 0.2 µA (at Tj = 25 °C, VR = VRRM) | µA |
| Rth(j-l) (Junction to lead thermal resistance) | 30 (SMA), 20 (SMA Flat Notch), 30 (DO-41) | °C/W |
Key Features
- Negligible switching losses
- Low forward voltage drop for higher efficiency and extended battery life
- Low thermal resistance
- Surface mount miniature package (SMA, SMA Flat Notch) and axial (DO-41) packages
- Avalanche capability
- ECOPACK2 compliant component, meeting environmental requirements
Applications
- Switching diode
- Switch-mode power supplies (SMPS)
- DC/DC converters
- Telecom power supplies
- Consumer and computer applications requiring low drop forward voltage
Q & A
- What is the maximum repetitive peak reverse voltage of the STPS1150AY?
The maximum repetitive peak reverse voltage (VRRM) is 150 V.
- What is the average forward current rating of the STPS1150AY?
The average forward current (IF(AV)) is 1 A.
- What are the typical forward voltage drop values for the STPS1150AY?
The typical forward voltage drop (VF) is 0.62 V at IF = 1 A and Tj = 25 °C.
- What are the available package types for the STPS1150AY?
The component is available in SMA, SMA Flat Notch, and DO-41 packages.
- What is the maximum operating junction temperature for the STPS1150AY?
The maximum operating junction temperature (Tj) is 175 °C.
- Is the STPS1150AY environmentally compliant?
Yes, it is ECOPACK2 compliant, meeting environmental requirements.
- What are some common applications for the STPS1150AY?
Common applications include switching diodes, SMPS, DC/DC converters, and telecom power supplies.
- What is the surge non-repetitive forward current rating for the STPS1150AY?
The surge non-repetitive forward current (IFSM) is 50 A for SMA and 75 A for DO-41 packages.
- How does the STPS1150AY reduce power dissipation?
It reduces power dissipation through its low forward voltage drop.
- What is the thermal resistance of the STPS1150AY?
The junction to lead thermal resistance (Rth(j-l)) is 30 °C/W for SMA and DO-41, and 20 °C/W for SMA Flat Notch.
