MA5KP18CAE3

Voltage - Clamping (Max) @ Ipp:	29.2V
Supplier Device Package:	DO-204AR
Package / Case:	DO-204AR, Axial
Mounting Type:	Through Hole
Operating Temperature:	-65°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	5000W (5kW)
Current - Peak Pulse (10/1000µs):	172A
Series:	Military, MIL-PRF-19500
Voltage - Breakdown (Min):	20V
Voltage - Reverse Standoff (Typ):	18V
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 - Diodes is a type of diode used for overvoltage protection. It can be used to protect electrical and electronic circuits from being damaged by power surges, transients, and shocks. MA5KP18CAE3 is a TVS diode from the MA-Series of TVS Diodes produced by STMicroelectronics, and is designed for automotive applications.

Application Field

The MA5KP18CAE3 is designed for all types of automotive applications, including engine control units, airbags, ABS modules, and other electronics. It is suitable for both 12V and 24V systems, and can be used to protect the system from overvoltage conditions caused by transients, spikes, and surges. It is also used in applications that require either ECM/DCM or EMC/DMC protection.

Technical Characteristics

The primary feature of the MA5KP18CAE3 is its high surge rating of 18VA. It also operates over a wide range of temperature, ranging from -40 degrees C to 125 degrees C and has an ESD rating of >30 kV. Its breakdown voltage is 5KV, and it has a reverse stand-off voltage of 4.7V. Its clamping voltage is 9.4V and its maximum peak pulse current is 1.5A.

Working Principle

The MA5KP18CAE3 works by suppressing transients and overvoltages that exceed its breakdown voltage. When an overvoltage is detected, the diode starts to conduct and divert the current away from the sensitive components of the system. The diode is able to absorb the energy produced by the transient and dissipate it as heat. This allows it to protect the system from damage caused by overvoltage.

Conclusion

In conclusion, the MA5KP18CAE3 is a TVS diode designed for automotive applications. It is suitable for both 12V and 24V systems, and is capable of protecting the system from overvoltage conditions caused by transients, spikes, and surges. It has a high surge rating of 18VA, operates over a wide range of temperature, and has an ESD rating of >30 kV. The working principle of the diode is to suppress transients and overvoltages that exceed its breakdown voltage, and to absorb the energy produced by the transient and dissipate it as heat.

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