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SMBJ28A-TR
+BOMTVS DIODE 28VWM 45.4VC SMB
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ManufacturerSTMicroelectronics
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Mfr. Part #SMBJ28A-TR
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Datasheet SMBJ28A-TR DataSheet
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Package DO-214AA
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In Stock2032
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Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | SMBJ, TRANSIL™ |
| ProductStatus | Active |
| Type | Zener |
| UnidirectionalChannels | 1 |
| Voltage-ReverseStandoff(Typ) | 28V |
| Voltage-Breakdown(Min) | 31.1V |
| Voltage-Clamping(Max)@Ipp | 45.4V |
| Current-PeakPulse(10/1000µs) | 13.8A |
| Power-PeakPulse | 600W |
| PowerLineProtection | No |
| Applications | General Purpose |
| OperatingTemperature | -55°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | DO-214AA, SMB |
Overview
Description
The SMBJ28A-TR is a type of Transient Voltage Suppressor (TVS) diode designed to protect sensitive electronic components from voltage spikes and transients, such as those caused by lightning strikes and electrostatic discharge. It features a breakdown voltage of 28 volts and is constructed in a compact SMB (DO-214AA) package, making it suitable for high-density circuit boards.
Key characteristics of the SMBJ28A-TR include its unidirectional protection, which allows it to handle voltage spikes in one direction, and its ability to clamp voltage to prevent damage to downstream components. The device is also characterized by a fast response time, low leakage current, and high surge capability, supporting a peak pulse power dissipation of 600 watts for a 10/1000 μs waveform.
This TVS diode is often used in telecommunications, consumer electronics, industrial equipment, and automotive applications to safeguard circuits from unexpected voltage events. Its availability in tape and reel packaging simplifies automated assembly processes.
Key characteristics of the SMBJ28A-TR include its unidirectional protection, which allows it to handle voltage spikes in one direction, and its ability to clamp voltage to prevent damage to downstream components. The device is also characterized by a fast response time, low leakage current, and high surge capability, supporting a peak pulse power dissipation of 600 watts for a 10/1000 μs waveform.
This TVS diode is often used in telecommunications, consumer electronics, industrial equipment, and automotive applications to safeguard circuits from unexpected voltage events. Its availability in tape and reel packaging simplifies automated assembly processes.
Equivalent
Equivalent products to the SMBJ28A-TR, a transient voltage suppressor (TVS) diode, include:
1. Littelfuse SMBJ28A
2. Bourns CDSOD323-T28C
3. ON Semiconductor (now part of onsemi) SMBJ28A
4. Vishay SMBJ28A
5. Nexperia PTVS28VS1UR
These alternatives offer similar power handling, breakdown voltage, and package type. Always verify specifications to ensure compatibility with your specific application.
1. Littelfuse SMBJ28A
2. Bourns CDSOD323-T28C
3. ON Semiconductor (now part of onsemi) SMBJ28A
4. Vishay SMBJ28A
5. Nexperia PTVS28VS1UR
These alternatives offer similar power handling, breakdown voltage, and package type. Always verify specifications to ensure compatibility with your specific application.
Features
The SMBJ28A-TR is a surface-mount Transient Voltage Suppressor (TVS) diode designed for protecting sensitive electronics from voltage spikes and transient overvoltages. Key features include:
1. Breakdown Voltage: The diode has a breakdown voltage of 28 volts.
2. Power Dissipation: It can handle a peak pulse power dissipation of 600 watts (10/1000 µs waveform).
3. Form Factor: The device is housed in a DO-214AA (SMB) package, suitable for surface mounting, optimizing space efficiency on PCBs.
4. Response Time: It provides fast response to voltage transients, typically in less than 1 picosecond.
5. Polarity: The SMBJ28A-TR is unidirectional, meaning it is designed to protect against positive voltage surges.
6. Clamping Voltage: It has a maximum clamping voltage of around 45.4 volts for effective suppression.
7. Junction Temperature Range: It operates in a wide temperature range, typically from -55°C to +150°C.
8. Lead-free: Complies with RoHS standards, ensuring environmental safety.
These features make the SMBJ28A-TR ideal for protecting circuits in various applications, including telecommunications and industrial equipment.
1. Breakdown Voltage: The diode has a breakdown voltage of 28 volts.
2. Power Dissipation: It can handle a peak pulse power dissipation of 600 watts (10/1000 µs waveform).
3. Form Factor: The device is housed in a DO-214AA (SMB) package, suitable for surface mounting, optimizing space efficiency on PCBs.
4. Response Time: It provides fast response to voltage transients, typically in less than 1 picosecond.
5. Polarity: The SMBJ28A-TR is unidirectional, meaning it is designed to protect against positive voltage surges.
6. Clamping Voltage: It has a maximum clamping voltage of around 45.4 volts for effective suppression.
7. Junction Temperature Range: It operates in a wide temperature range, typically from -55°C to +150°C.
8. Lead-free: Complies with RoHS standards, ensuring environmental safety.
These features make the SMBJ28A-TR ideal for protecting circuits in various applications, including telecommunications and industrial equipment.
Pinout
The SMBJ28A-TR is a transient voltage suppressor (TVS) diode designed to protect electronic components from voltage spikes. It is part of the SMBJ series, which stands for Surface Mount Transient Voltage Suppressor Diodes in the DO-214AA (SMB) package. The "-TR" suffix indicates that the diodes are supplied in a tape and reel format, which is standard for surface-mount devices.
The SMBJ28A-TR has two pins. These pins connect the device in parallel with the circuitry that needs protection. The primary function of the SMBJ28A-TR is to clamp the voltage to a safe level when a transient voltage spike occurs, thereby protecting sensitive electronic components from overvoltage conditions. It is rated for a breakdown voltage of 28 volts and is capable of handling peak pulse power of 600 watts (10/1000μs waveform) as specified in its standard operating conditions.
The SMBJ28A-TR has two pins. These pins connect the device in parallel with the circuitry that needs protection. The primary function of the SMBJ28A-TR is to clamp the voltage to a safe level when a transient voltage spike occurs, thereby protecting sensitive electronic components from overvoltage conditions. It is rated for a breakdown voltage of 28 volts and is capable of handling peak pulse power of 600 watts (10/1000μs waveform) as specified in its standard operating conditions.
Manufacturer
The SMBJ28A-TR is manufactured by STMicroelectronics. STMicroelectronics is a multinational electronics and semiconductor manufacturer. It is one of the largest semiconductor companies in the world and specializes in a wide range of products including microcontrollers, sensors, power devices, and analog and digital integrated circuits. The company serves various industries such as automotive, industrial, personal electronics, and communications equipment.
Application
The SMBJ28A-TR is a Transient Voltage Suppressor (TVS) diode used primarily for protecting sensitive electronic components from voltage transients induced by inductive load switching and lightning in various applications. Key application areas include:
1. Telecommunication Equipment: Protects interfaces and communication lines.
2. Consumer Electronics: Safeguards devices like televisions and computers from voltage spikes.
3. Automotive Systems: Shields onboard electronics from power surges.
4. Industrial Equipment: Ensures reliability in harsh electrical environments.
5. Power Supplies: Protects against voltage transients and surges.
Its ability to handle fast and high-energy transients makes it versatile for numerous electronic protection applications.
1. Telecommunication Equipment: Protects interfaces and communication lines.
2. Consumer Electronics: Safeguards devices like televisions and computers from voltage spikes.
3. Automotive Systems: Shields onboard electronics from power surges.
4. Industrial Equipment: Ensures reliability in harsh electrical environments.
5. Power Supplies: Protects against voltage transients and surges.
Its ability to handle fast and high-energy transients makes it versatile for numerous electronic protection applications.
Package
The SMBJ28A-TR is a transient voltage suppressor (TVS) diode with an SMB (DO-214AA) package type. It is designed to protect sensitive electronics from voltage spikes and transients.
