MSMCJ15A/TR Circuit Protection

Current - Peak Pulse (10/1000µs):	61.5A
Supplier Device Package:	SMCJ (DO-214AB)
Package / Case:	DO-214AB, SMC
Mounting Type:	Surface Mount
Operating Temperature:	-65°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	1500W (1.5kW)
Series:	Military, MIL-PRF-19500
Voltage - Clamping (Max) @ Ipp:	24.4V
Voltage - Breakdown (Min):	16.7V
Voltage - Reverse Standoff (Typ):	15V
Bidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active

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Introduction

TVS (transient voltage suppressor) diodes are semiconductors that protect electronics from voltage transient or electrostatic discharge (ESD) events. In many types of consumer electronics, this protection is referred to as surge protection. Among the many TVS diode categories available, the “M” series of TVS diodes developed by Microsemi, a Qualcomm company, excels in this field and has been widely used in various applications. The MSMCJ15A/TR is one of the M-series TVS diodes developed by Microsemi and is a part of the Advanced TVS family. This product is a mini-TVS diode and is widely used in consumer electronics, data and signal line protection, automotive electronics, and other applications.

Applications

The MSMCJ15A/TR is designed to protect the electronics circuit from the destructive effect of voltage transients or ESD events. It is specially designed for wearables and other consumer electronics, which requires an ultra-small footprint for the circuit design but can also withstand high surge currents and offer maximum protection. The product comes with a reverse stand-off voltage rating of 15 volts and is especially designed for protecting consumer electronics such as Blu-ray devices, smart phones, tablets, internet of things (IoT) devices, and cameras from voltage transients and ESD events.Aside from consumer electronics, the MSMCJ15A/TR can also be used in data and signal lines protection. Due to its small size, it is typically used in many electronic circuit applications with limited space that require surge protection. It also provides protection from ESD and voltage spikes in automotive electronics such as body control modules, radio, and wireless charging systems.

Package Type and Ratings

The MSMCJ15A/TR comes in a small-outline surface-mount package (SOP8) and can boast a strong power rating of 10W at 10/1000us. It offers a high standoff voltage of 15V which makes it well suited for consumer electronics applications. This product also provides IEC61000-4-2 level 4 ESD protection (up to 25kV contact/air discharge).

Features and Benefits

The MSMCJ15A/TR has a number of features and benefits. These include:• Small Outline Package (SOP8) that is designed to fit into the smallest of electronic circuit designs• 10W (10/100 us) maximum dissipation• Maximum peak pulse power 10W• High IEC61000-4-2 level 4 ESD protection up to 25kV (Contact Discharge/Air Discharge)• Low leakage current• Low clamping voltage• RoHS compliant lead-free

Working Principle

The MSMCJ15A/TR is a TVS diode based device that can provide effective ESD and transient protection. The working principle of the device is based on the avalanche breakdown effect of the PN junction. When the current becomes excessive due to an electrostatic discharge or voltage transient, the breakdown voltage of the PN junction is exceeded which causes the diode to conduct. This limits the excess current and protects the device from damaging effects. The MSMCJ15A/TR is designed with special techniques to maintain low on-state leakage current levels and low clamping voltage for superior surge coupling and application protection. The diode exhibits fast turn-on response times and low typical capacitance for trans-system protection.

Conclusion

The MSMCJ15A/TR is an advanced TVS diode designed by Microsemi for consumer electronics, data and signal line protection, and automotive electronics applications. It has a reverse stand-off voltage rating of 15V, a maximum dissipation of 10W, and a maximum peak pulse power of 10W. The product has many features and benefits including low leakage current, low clamping voltage, and RoHS compliant lead-free construction. The diode works by utilizing the avalanche breakdown effect of the PN junction which allows it to conduct when the voltage or current becomes excessive, and limits the excess current to protect the device.

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