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STEF12WHPUR
Basic Information Overview
- Category: Electronic Component
- Use: Voltage Regulator
- Characteristics: High Efficiency, Low Dropout Voltage
- Package: TO-220
- Essence: Linear Regulator
- Packaging/Quantity: Tape and Reel, 1000 pieces per reel
Specifications
- Input Voltage Range: 4.5V to 18V
- Output Voltage Range: 1.2V to 15V
- Output Current: Up to 1A
- Dropout Voltage: 0.3V (typical)
- Line Regulation: ±0.05% (typical)
- Load Regulation: ±0.1% (typical)
- Quiescent Current: 75µA (typical)
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
The STEF12WHPUR has a standard TO-220 package with three pins: - Pin 1: Input Voltage (VIN) - Pin 2: Ground (GND) - Pin 3: Output Voltage (VOUT)
Functional Features
- High Efficiency: The STEF12WHPUR utilizes advanced circuitry to achieve high efficiency, minimizing power dissipation.
- Low Dropout Voltage: With a low dropout voltage of only 0.3V, this voltage regulator can operate efficiently even when the input voltage is close to the desired output voltage.
- Excellent Line and Load Regulation: The device provides excellent line and load regulation, ensuring a stable output voltage under varying conditions.
- Thermal Shutdown Protection: The STEF12WHPUR incorporates thermal shutdown protection, preventing damage due to excessive temperature.
Advantages and Disadvantages
Advantages: - High efficiency results in reduced power consumption. - Low dropout voltage allows for efficient operation with low input-output voltage differentials. - Excellent line and load regulation ensures a stable output voltage. - Thermal shutdown protection prevents damage from overheating.
Disadvantages: - Limited output current of up to 1A may not be sufficient for high-power applications. - TO-220 package may require additional heat sinking for certain operating conditions.
Working Principles
The STEF12WHPUR is a linear regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage, adjusting the pass transistor's resistance to maintain a constant output voltage. The device dissipates excess power as heat to regulate the voltage.
Detailed Application Field Plans
The STEF12WHPUR is suitable for various applications requiring voltage regulation, such as: 1. Power supplies for microcontrollers and other digital ICs. 2. Battery-powered devices where efficient power conversion is crucial. 3. Automotive electronics, providing stable voltage for sensors and control systems. 4. Industrial automation systems, ensuring reliable operation of sensitive components. 5. Consumer electronics, including audio/video equipment and portable devices.
Detailed and Complete Alternative Models
- LM317: A popular adjustable linear regulator with similar specifications and pin configuration.
- LT1084: High-current linear regulator with adjustable output voltage and low dropout voltage.
- LM1117: Low dropout voltage regulator available in various fixed output voltages.
- L78xx: Series of fixed output voltage regulators with different current ratings.
- TPS7A47: Ultra-low noise linear regulator suitable for audio applications.
These alternative models offer similar functionality and can be considered based on specific requirements and availability.
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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van STEF12WHPUR in technische oplossingen
Sure! Here are 10 common questions and answers related to the application of STEF12WHPUR in technical solutions:
Q: What is STEF12WHPUR? A: STEF12WHPUR is a type of high-performance polyurethane adhesive commonly used in technical applications.
Q: What are the key features of STEF12WHPUR? A: Some key features of STEF12WHPUR include excellent adhesion, high strength, resistance to temperature variations, and good chemical resistance.
Q: Where can STEF12WHPUR be used? A: STEF12WHPUR can be used in various technical solutions such as bonding metals, plastics, composites, and elastomers.
Q: How is STEF12WHPUR applied? A: STEF12WHPUR is typically applied using a dispensing gun or automated equipment. It is important to follow the manufacturer's instructions for proper application.
Q: What is the curing time for STEF12WHPUR? A: The curing time for STEF12WHPUR can vary depending on factors such as temperature and humidity. Generally, it takes around 24 hours for full cure.
Q: Is STEF12WHPUR resistant to moisture? A: Yes, STEF12WHPUR has good moisture resistance, making it suitable for applications where exposure to water or humidity is expected.
Q: Can STEF12WHPUR withstand high temperatures? A: Yes, STEF12WHPUR has good heat resistance and can withstand high temperatures up to a certain limit, typically around 150°C (302°F).
Q: Does STEF12WHPUR require surface preparation before application? A: Yes, it is recommended to properly clean and prepare the surfaces to be bonded before applying STEF12WHPUR. This ensures optimal adhesion.
Q: Can STEF12WHPUR be used for outdoor applications? A: Yes, STEF12WHPUR is suitable for outdoor applications as it has good resistance to weathering, UV radiation, and aging.
Q: Is STEF12WHPUR environmentally friendly? A: STEF12WHPUR is a solvent-free adhesive, which makes it more environmentally friendly compared to solvent-based alternatives. However, it is always important to follow proper disposal guidelines.
Please note that these answers are general and may vary depending on the specific manufacturer's recommendations and product specifications.