MXLSMBJ45CA Circuit Protection

Voltage - Clamping (Max) @ Ipp:	72.7V
Supplier Device Package:	SMBJ (DO-214AA)
Package / Case:	DO-214AA, SMB
Mounting Type:	Surface Mount
Operating Temperature:	-65°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	600W
Current - Peak Pulse (10/1000µs):	8.3A
Series:	Military, MIL-PRF-19500
Voltage - Breakdown (Min):	50V
Voltage - Reverse Standoff (Typ):	45V
Bidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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MXLSMBJ45CA application field and working principle

TVS diodes are a kind of protection device which can protect sensitive electronics from voltage transients caused by external processes. Specifically, the MXLSMBJ45CA is designed to reduce the overvoltage energy for sensitive automotive electronic devices. It is employed for applications such as automotive power line protection, excessive voltage protection for bus lines, and reverse battery protection. These transients can cause fault operation and damage to sensitive electronics, which can be avoided with the installation of 100V TVS Diodes.The MXLSMBJ45CA is designed for surface mount protection applications. The device is designed to survive multiple, multiple electrostatic discharges (ESD), as well as minimize the risk of latch-up in sensitive circuits. The diode can protect up to 4 lines with a clamping voltage ranging from 9 to 40 volts. The device features a low leakage current, high reliability, and low capacitance for ultra-high speed/data line protection. The structure of the MXLSMBJ45CA is based on optimized silicon avalanche diode with built-in terminal inductance and well-defined capacitance. The diode is designed so that a current flows during avalanche breakdown, while a reverse voltage is applied across the diode. When the current reaches the critical level, the diode will start to conduct reverse current and reach its clamping voltage. This protection level is maintained until the voltage transient has passed. The breakdown voltage of the diode, also known as the clamping voltage, is determined by the design of the diode\'s electrodes and the junction breakdown. Different types of TVS diodes have different clamping voltages. For the MXLSMBJ45CA , the clamping voltage ranges from 9 to 40 volts, depending on the conditions.The MXLSMBJ45CA device is properly characterized to ensure performance in a wide range of automotive environments, including temperature, humidity, and electrical stresses. The device is also designed to provide robust ESD protection levels up to 40 KV. The device has an operating temperature range of -40°C to +125°C.To ensure proper functioning of the diode, it is important to adhere to the recommended mounting procedures. In particular, the diode must be mounted on a vacant board area in order to provide maximum protection. Insufficient clearance may result in thermal runaway and failure. The mounting surface should also be kept clean and free from contaminants, in order to prevent arcing or sparking.In summary, the MXLSMBJ45CA is a TVS diode designed to protect sensitive automotive electronics from voltage transients. The device features a low leakage current, high reliability, and low capacitance for ultra-high speed/data line protection. The device is characterized to ensure performance in a wide range of automotive environments, and is designed for surface mount protection applications. It is important to adhere to the recommended mounting procedures in order to ensure proper functioning of the diode.

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