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How to Use TVS 1.5KE 24A: Examples, Pinouts, and Specs
Design with TVS 1.5KE 24A in Cirkit DesignerIntroduction
The TVS 1.5KE 24A is a Transient Voltage Suppressor (TVS) diode designed to protect sensitive electronic components from voltage spikes and transients. It is particularly effective in safeguarding circuits from electrostatic discharge (ESD), lightning-induced surges, and other transient voltage events. With a breakdown voltage of 24V and a peak pulse power rating of 1.5kW, this diode is ideal for use in industrial, automotive, and consumer electronics applications.
Explore Projects Built with TVS 1.5KE 24A
Modular Power Distribution System with Multiple SMPS Units and 120V Outlet
This circuit is designed to convert 240V AC power to both 12V and 24V DC outputs using multiple SMPS units. Terminal blocks are used to organize and distribute the power, while a 120V outlet provides additional AC power access. The circuit is likely used for powering various electronic devices that require different voltage levels.
Open Project in Cirkit DesignerLED Indicator Circuit with Push Switches and Voltage Regulation
This circuit converts 220V AC to 24V DC using a power transformer and a bridge rectifier, then regulates the voltage to a stable output using a voltage regulator. It includes multiple LEDs controlled by push switches, with current limiting provided by a resistor.
Open Project in Cirkit DesignerESP32-Based Smart Energy Monitoring and Control System
This circuit is designed to monitor AC voltage and current using ZMPT101B and ZMCT103C sensors, respectively, with an ESP32 microcontroller processing the sensor outputs. The XL4015 step-down module regulates the power supply to provide a stable voltage to the sensors, the ESP32, and an LCD I2C display. The ESP32 controls a 4-channel relay module for switching AC loads, and the system's operation can be interacted with via the LCD display and a push switch.
Open Project in Cirkit DesignerLED Array with Push Switch Control and Voltage Regulation
This circuit is a power supply and control system that steps down 220V AC to 24V AC using a transformer, rectifies it to DC using a bridge rectifier, and regulates it to 5V DC. It includes multiple LEDs controlled by push switches and a relay, with a capacitor for smoothing the output.
Open Project in Cirkit DesignerExplore Projects Built with TVS 1.5KE 24A
Modular Power Distribution System with Multiple SMPS Units and 120V Outlet
This circuit is designed to convert 240V AC power to both 12V and 24V DC outputs using multiple SMPS units. Terminal blocks are used to organize and distribute the power, while a 120V outlet provides additional AC power access. The circuit is likely used for powering various electronic devices that require different voltage levels.
Open Project in Cirkit DesignerLED Indicator Circuit with Push Switches and Voltage Regulation
This circuit converts 220V AC to 24V DC using a power transformer and a bridge rectifier, then regulates the voltage to a stable output using a voltage regulator. It includes multiple LEDs controlled by push switches, with current limiting provided by a resistor.
Open Project in Cirkit DesignerESP32-Based Smart Energy Monitoring and Control System
This circuit is designed to monitor AC voltage and current using ZMPT101B and ZMCT103C sensors, respectively, with an ESP32 microcontroller processing the sensor outputs. The XL4015 step-down module regulates the power supply to provide a stable voltage to the sensors, the ESP32, and an LCD I2C display. The ESP32 controls a 4-channel relay module for switching AC loads, and the system's operation can be interacted with via the LCD display and a push switch.
Open Project in Cirkit DesignerLED Array with Push Switch Control and Voltage Regulation
This circuit is a power supply and control system that steps down 220V AC to 24V AC using a transformer, rectifies it to DC using a bridge rectifier, and regulates it to 5V DC. It includes multiple LEDs controlled by push switches and a relay, with a capacitor for smoothing the output.
Open Project in Cirkit DesignerCommon Applications and Use Cases
- Protection of power supply lines and data lines
- Safeguarding microcontrollers, ICs, and other sensitive components
- Automotive electronics to protect against load dump and transient surges
- Industrial equipment exposed to harsh electrical environments
- Consumer electronics such as TVs, computers, and mobile devices
Technical Specifications
Key Technical Details
| Parameter | Value |
|---|---|
| Breakdown Voltage (VBR) | 24V (minimum) |
| Working Peak Reverse Voltage (VRWM) | 20.5V |
| Clamping Voltage (VC) | 38.9V (maximum) |
| Peak Pulse Power (PPP) | 1.5kW (10/1000µs waveform) |
| Peak Pulse Current (IPP) | 38.5A (10/1000µs waveform) |
| Reverse Leakage Current (IR) | 1µA (at VRWM) |
| Response Time | < 1ns |
| Operating Temperature Range | -55°C to +175°C |
| Package Type | DO-201 |
Pin Configuration and Descriptions
The TVS 1.5KE 24A is a bidirectional diode with two pins:
| Pin Number | Name | Description |
|---|---|---|
| 1 | Cathode | Connects to the negative side of the circuit. |
| 2 | Anode | Connects to the positive side of the circuit. |
Note: For bidirectional operation, the diode can be connected in either orientation.
Usage Instructions
How to Use the Component in a Circuit
- Identify the Voltage to Protect Against: Ensure the TVS diode's breakdown voltage (24V) is appropriate for the circuit's operating voltage.
- Connect the TVS Diode Across the Circuit:
- For unidirectional protection, connect the cathode to the positive voltage line and the anode to ground.
- For bidirectional protection, the orientation does not matter.
- Verify Power Ratings: Ensure the diode's peak pulse power (1.5kW) and clamping voltage (38.9V) are sufficient for the expected transient events.
- Add Series Resistance if Necessary: In some cases, a series resistor may be added to limit current during transients.
Important Considerations and Best Practices
- Placement: Place the TVS diode as close as possible to the component or circuit being protected to minimize inductive effects.
- Voltage Selection: Choose a TVS diode with a breakdown voltage slightly higher than the circuit's normal operating voltage.
- Thermal Management: Ensure adequate heat dissipation, especially in high-power applications.
- Testing: Test the circuit under expected transient conditions to confirm proper operation.
Example: Using TVS 1.5KE 24A with an Arduino UNO
To protect an Arduino UNO from voltage spikes on its power supply line, you can connect the TVS 1.5KE 24A across the 5V and GND pins.
// Example: Arduino UNO protected by TVS 1.5KE 24A
// The TVS diode is connected across the 5V and GND pins to suppress voltage spikes.
// No additional code is required for the TVS diode to function, as it operates passively.
Troubleshooting and FAQs
Common Issues and Solutions
| Issue | Possible Cause | Solution |
|---|---|---|
| TVS diode gets excessively hot | Continuous overvoltage or high current | Verify the circuit voltage and current. |
| Circuit is not protected from surges | Incorrect diode orientation | Ensure proper connection of anode/cathode. |
| High leakage current | Damaged or degraded diode | Replace the TVS diode with a new one. |
FAQs
Can I use the TVS 1.5KE 24A for AC circuits?
- Yes, but ensure the bidirectional version is used for AC applications.
What happens if the operating voltage exceeds the breakdown voltage?
- The TVS diode will conduct and clamp the voltage to protect the circuit. Prolonged overvoltage may damage the diode.
How do I test if the TVS diode is functioning?
- Use a multimeter in diode mode. A functional TVS diode will show a low forward voltage drop and high resistance in reverse.
By following this documentation, you can effectively integrate the TVS 1.5KE 24A into your designs and protect your circuits from harmful voltage transients.