MXLSMBJ12CA Circuit Protection

Voltage - Clamping (Max) @ Ipp:	19.9V
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):	30.2A
Series:	Military, MIL-PRF-19500
Voltage - Breakdown (Min):	13.3V
Voltage - Reverse Standoff (Typ):	12V
Bidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction to MXLSMBJ12CA

The MXLSMBJ12CA is a Transient Voltage Suppressor (TVS) diode from a leading TVS diode manufacturer. It is designed to protect sensitive electronics from ESD pulses, EFT and lighting effects from external environments. This diode offers two very important characteristics, high surge current handling capability, and a low intrinsic capacitance that make them ideal for protecting sensitive electronic components.

MXLSMBJ12CA Application Field

The MXLSMBJ12CA can be used in a variety of applications, including:

• Computer/Embedded system applications
• Ethernet Equipment
• Computer peripherals
• Computer Drivers and Controllers
• Portable Computers and Connected Devices
• Telecommunications Equipment
• Consumer Electronic Products
• Industrial Automation Equipment

In these applications, the MXLSMBJ12CA is used to protect against ESD, EFT, and lighting pulses. They are especially well suited for protecting against transient events due to their low capacitance and higher surge capacity.

MXLSMBJ12CA Working Principle

The MXLSMBJ12CA is a surge protector device which has two main components; a diode and a resistor. The diode is the most important component and it works by clamping the voltage rising above the “peak” voltage level, this is known as Peak Pulse Power. Once the Peak Pulse Power is exceeded, the diode will begin to conduct the pulse current effectively “clamping” the voltage level back to an acceptable level that the components in the system can handle safely. The resistor also plays an important role in the working principle of the MXLSMBJ12CA. The resistor is used to create a voltage drop on transient pulses, it also serves as an energy sink allowing the diode to limit the voltage effectively to the peak voltage level. This prevents the system from being damaged by a high voltage spike.

Conclusion

The MXLSMBJ12CA is a Transient Voltage Suppressor (TVS) diode from a leading TVS diode manufacturer. It is designed to protect sensitive electronics from ESD pulses, EFT and lighting effects from external environments. This diode offers two very important characteristics; high surge current handling capability, and low intrinsic capacitance. This makes the MXLSMBJ12CA ideal for protecting sensitive electronic components, and it is widely used in computer/embedded system applications, ethernet equipment, portable computers, telecommunications equipment and other consumer electronic products. The working principle of the MXLSMBJ12CA involves the use of a diode and a resistor, which allows the diode to limit the voltage and create a voltage drop on transient pulses, allowing the system to be protected from high voltage spikes.

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