Specifications
| Attribute | Value |
| Package / Case | Tape & Reel (TR) |
| Part Status | Active |
Overview
Description
The SMAJ12A is a type of transient voltage suppression (TVS) diode designed to protect sensitive electronic components from voltage spikes and transients. It is commonly used in applications where circuit protection is crucial, such as in communication systems, industrial equipment, and consumer electronics.
Key features of the SMAJ12A include:
1. Voltage Rating: It is designed to handle a breakdown voltage around 12 volts, making it suitable for moderate voltage applications.
2. Package Type: It typically comes in a surface-mount SMA (DO-214AC) package, which is compact and suitable for automated PCB assembly.
3. Power Handling: The SMAJ12A can absorb significant power with a peak pulse power dissipation of up to 400 watts (10/1000 µs waveform), providing robust protection against short-term voltage spikes.
4. Unidirectional Configuration: It offers unidirectional protection, meaning it clamps voltage surges in one direction, suitable for DC applications.
The SMAJ12A is favored for its reliability, ease of use, and effectiveness in protecting circuits from damage due to electrical transients.
Key features of the SMAJ12A include:
1. Voltage Rating: It is designed to handle a breakdown voltage around 12 volts, making it suitable for moderate voltage applications.
2. Package Type: It typically comes in a surface-mount SMA (DO-214AC) package, which is compact and suitable for automated PCB assembly.
3. Power Handling: The SMAJ12A can absorb significant power with a peak pulse power dissipation of up to 400 watts (10/1000 µs waveform), providing robust protection against short-term voltage spikes.
4. Unidirectional Configuration: It offers unidirectional protection, meaning it clamps voltage surges in one direction, suitable for DC applications.
The SMAJ12A is favored for its reliability, ease of use, and effectiveness in protecting circuits from damage due to electrical transients.
Equivalent
The SMAJ12A is a transient voltage suppressor diode. Equivalent products include:
1. 1.5SMC12A from Littelfuse
2. P6SMB12A from ON Semiconductor
3. SMBJ12A from STMicroelectronics
4. SMCJ12A from Vishay
It's important to check the datasheets for specific parameters to ensure compatibility with your application, as there might be slight variations in electrical characteristics or packaging.
1. 1.5SMC12A from Littelfuse
2. P6SMB12A from ON Semiconductor
3. SMBJ12A from STMicroelectronics
4. SMCJ12A from Vishay
It's important to check the datasheets for specific parameters to ensure compatibility with your application, as there might be slight variations in electrical characteristics or packaging.
Features
The SMAJ12A is a surface-mount Transient Voltage Suppressor (TVS) diode designed to protect sensitive electronic equipment from voltage spikes and transient overvoltages. Here are its key features:
1. Breakdown Voltage: It has a breakdown voltage of approximately 12V, which makes it suitable for protecting circuits from surges at this voltage level.
2. Power Dissipation: It is capable of dissipating 400 watts of power during a 1ms pulse, providing robust protection against transient events.
3. Response Time: The diode has a fast response time, typically in the picosecond range, ensuring quick clamping of voltage spikes.
4. Configuration: It is available in a unidirectional configuration, meaning it provides protection in one direction, suitable for DC applications.
5. Package: The SMAJ12A comes in a DO-214AC (SMA) package, which is compact and suitable for surface mounting, aiding in efficient use of PCB space.
6. Compliance: It meets industry standards for reliability and performance, often used in various applications such as power supplies, automotive circuits, and consumer electronics.
These features make the SMAJ12A a robust choice for transient voltage suppression in various electronic applications.
1. Breakdown Voltage: It has a breakdown voltage of approximately 12V, which makes it suitable for protecting circuits from surges at this voltage level.
2. Power Dissipation: It is capable of dissipating 400 watts of power during a 1ms pulse, providing robust protection against transient events.
3. Response Time: The diode has a fast response time, typically in the picosecond range, ensuring quick clamping of voltage spikes.
4. Configuration: It is available in a unidirectional configuration, meaning it provides protection in one direction, suitable for DC applications.
5. Package: The SMAJ12A comes in a DO-214AC (SMA) package, which is compact and suitable for surface mounting, aiding in efficient use of PCB space.
6. Compliance: It meets industry standards for reliability and performance, often used in various applications such as power supplies, automotive circuits, and consumer electronics.
These features make the SMAJ12A a robust choice for transient voltage suppression in various electronic applications.
Pinout
The SMAJ12A is a unidirectional transient voltage suppressor (TVS) diode designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events.
It typically comes in a DO-214AC (SMA) package, which generally has two pins:
1. Anode (A): The positive terminal for connecting to the circuit.
2. Cathode (K): The negative terminal, marked with a band on the package.
The SMAJ12A has a standoff voltage (VWM) of 12 volts, meaning it can continuously withstand voltages up to this level without entering the breakdown region. Its function is to clamp voltage spikes down to a safe level, thereby protecting components in the circuit from damage due to overvoltage. It achieves this by entering a low-impedance state when the voltage exceeds its breakdown voltage, effectively shunting excess current away from sensitive components.
It typically comes in a DO-214AC (SMA) package, which generally has two pins:
1. Anode (A): The positive terminal for connecting to the circuit.
2. Cathode (K): The negative terminal, marked with a band on the package.
The SMAJ12A has a standoff voltage (VWM) of 12 volts, meaning it can continuously withstand voltages up to this level without entering the breakdown region. Its function is to clamp voltage spikes down to a safe level, thereby protecting components in the circuit from damage due to overvoltage. It achieves this by entering a low-impedance state when the voltage exceeds its breakdown voltage, effectively shunting excess current away from sensitive components.
Manufacturer
The SMAJ12A is a type of semiconductor device, specifically a Transient Voltage Suppressor (TVS) diode. It is manufactured by various companies, including Littelfuse and STMicroelectronics. Littelfuse is a global company known for its focus on circuit protection, power control, and sensing technologies, catering to automotive, industrial, electronics, and telecommunications sectors. STMicroelectronics is a leading global semiconductor company offering a wide range of products, including microcontrollers, sensors, and power management devices, serving various industries such as automotive, industrial, personal electronics, and communications. Both companies are well-regarded in the electronics industry for their innovation and quality in semiconductor manufacturing.
Application
The SMAJ12A is a transient voltage suppressor (TVS) diode used primarily for protecting sensitive electronic components from voltage spikes and electrostatic discharge (ESD). Its main application areas include:
1. Telecommunication Equipment: Protects data lines and power lines from voltage transients.
2. Consumer Electronics: Provides over-voltage protection in devices like TVs, computers, and mobile devices.
3. Industrial Systems: Safeguards industrial controls and automation equipment from electrical disturbances.
4. Automotive Electronics: Protects vehicle electronic modules from voltage spikes.
5. Power Supplies: Ensures stable operation by preventing over-voltage conditions.
These applications take advantage of the TVS diode's fast response time and high power dissipation capability.
1. Telecommunication Equipment: Protects data lines and power lines from voltage transients.
2. Consumer Electronics: Provides over-voltage protection in devices like TVs, computers, and mobile devices.
3. Industrial Systems: Safeguards industrial controls and automation equipment from electrical disturbances.
4. Automotive Electronics: Protects vehicle electronic modules from voltage spikes.
5. Power Supplies: Ensures stable operation by preventing over-voltage conditions.
These applications take advantage of the TVS diode's fast response time and high power dissipation capability.
Package
The SMAJ12A is a Surface Mount Transient Voltage Suppressor (TVS) diode package. It typically comes in a DO-214AC (SMA) package type, designed for protecting sensitive electronic equipment from voltage spikes and transients.
