MSMBG15CA

Voltage - Clamping (Max) @ Ipp:	24.4V
Supplier Device Package:	SMBG (DO-215AA)
Package / Case:	DO-215AA, SMB Gull Wing
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):	24A
Series:	Military, MIL-PRF-19500
Voltage - Breakdown (Min):	16.7V
Voltage - Reverse Standoff (Typ):	15V
Bidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

TVS, or Transient Voltage Suppressors, are a type of device commonly found in electrical circuits. They are used to protect circuits from destructive voltage transients which can occur from electrostatic discharge (ESD) or other transient events. One type of TVS is the MSMBG15CA which is a dual-diode TVS with an ESD rating of 8 kV. In this article, we will discuss the application field and working principle of the MSMBG15CA.

Application

The MSMBG15CA is most commonly used in the communications industry in applications such as RF transmitters and receivers, mobile communications, and other portable electronics devices. It is suitable for a variety of data and signal line protection. The device is also an economical ESD protection choice for automotive applications, providing superior ESD protection compared to standard diodes.

Working Principle

At the heart of the MSMBG15CA are two diodes connected in inverse parallel. When there is a voltage transient, the device will react by clamping the voltage to a safe level. This ensures that the voltage does not exceed the ratings of the connected components and, therefore, prevents damage to the circuit. The device\'s clamping voltage is determined by the breakdown voltage of the diodes. When the transient voltage rises above the forward voltage of the diodes, the diodes start to conduct and thus clamp the voltage. When the transient voltage is low, the device acts like an open circuit. This allows normal operation of the circuit without any unwanted interference from the device. When the transient voltage is too high, the TVS can become overloaded. The device has a maximum peak pulse power rating which should not be exceeded. If the device is overloaded, the diodes can be damaged beyond repair.

Conclusion

The MSMBG15CA is an ideal TVS for many applications. It is small, inexpensive and provides excellent ESD protection. It can be used to protect RF transmitters and receivers, portable electronics, and automotive circuits from damaging transient voltage events. The device is easy to use and operates by clamping the voltage to a safe level when a transient voltage is encountered. If used within its ratings, the MSMBG15CA will reliably protect circuits from damage.

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