SMBJ440CA Circuit Protection |
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Allicdata Part #: | SMBJ440CALFTR-ND |
Manufacturer Part#: |
SMBJ440CA |
Price: | $ 0.15 |
Product Category: | Circuit Protection |
Manufacturer: | Littelfuse Inc. |
Short Description: | TVS DIODE 440V 713V DO214AA |
More Detail: | N/A |
DataSheet: | SMBJ440CA Datasheet/PDF |
Quantity: | 6000 |
Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
3000 +: | $ 0.13399 |
6000 +: | $ 0.12535 |
15000 +: | $ 0.11670 |
30000 +: | $ 0.11526 |
Specifications
Series: | SMBJ |
Packaging: | Tape & Reel (TR) |
Lead Free Status / RoHS Status: | -- |
Part Status: | Active |
Moisture Sensitivity Level (MSL): | -- |
Type: | Zener |
Bidirectional Channels: | 1 |
Voltage - Reverse Standoff (Typ): | 440V |
Voltage - Breakdown (Min): | 492V |
Voltage - Clamping (Max) @ Ipp: | 713V |
Current - Peak Pulse (10/1000µs): | 900mA |
Power - Peak Pulse: | 600W |
Power Line Protection: | No |
Applications: | General Purpose |
Capacitance @ Frequency: | -- |
Operating Temperature: | -65°C ~ 150°C (TJ) |
Mounting Type: | Surface Mount |
Package / Case: | DO-214AA, SMB |
Supplier Device Package: | DO-214AA (SMBJ) |
Description
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SMBJ440CA application field and working principle
Transient Voltage Suppressors (TVS) - Diodes fall within the broader category of Rectifier Diodes. These particular types of diodes are designed for protection from power surges. The SMBJ440CA is a specific TVS diode type that is utilized for direct on-board installation.Application
The SMBJ440CATVS Diode has a guaranteed maximum working peak voltage of 440 volts. It is a surface-mount bipolar Transient Voltage Suppressor diode that is known for its reliable and rapid protection. It is mainly utilized in high-speed data lines and in circuits with stringent transient and ESD protection needs.The SMBJ440CA is designed specifically for application in automotive, industrial and consumer products, such as Advanced Driver Assistance and Autonomous Driving products, Automotive retrofits, LED lighting systems that use high-frequency power supplies, Solid-state relays, inverters, and even for Home Automation pieces.Design Overview
The SMBJ440CA is a discreet, surface-mount, 600 W peak pulse power dissipation diode with an ultra-low capacitance package. The device offers low density implementations, allowing for higher density of boards, saving valuable space in crowded designs. It is rated for a temperature range of -65 °C to 150 °C, and its maximum breakdown voltage is given as 440 V.It has a low connection capacitance and fast switching speed, which make it a good choice for data line transients and ESD protection circuits. Its cathode and anode pins are coded for easy identification.The package is specifically designed for optimal-high speed pulse-handling capability and efficient heat radiation during working conditions making it a very reliable solution.How Does It Work?
The SMBJ440CA is a voltage-controlled device that has two leads: a cathode and anode. The anode is the positive input, while the cathode is the negative input. The device begins conducting when a given amount of voltage is exceeded on the anode side with respect to the cathode side.The device then provides a path for current to travel between the anode and the cathode, and it also limits the amount of voltage that can travel through it. This is done by having it leak a small amount of current, or ‘clamping’ the voltage so that it doesn\'t exceed the rating of the device.Once the voltage threshold is passed, the device will remain conducting until the applied voltage is less than the threshold. As soon as this happens, the device will open up and the current will cease. This makes it an ideal choice for applications that require over- or under voltage protection.Conclusion
The SMBJ440CA TVS diode is a reliable and fast-acting device that makes an ideal choice for applications that require protection from over- or undervoltage. Its surface-mount design, low capacitance package and fast switching speed make it very attractive to designers who need a small form factor, high-speed pulse handling capability and efficient heat radiation. We hope that this article has provided you with some insight into the features, benefits and use of this device.The specific data is subject to PDF, and the above content is for reference
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