MXL5KP14A Circuit Protection

Voltage - Clamping (Max) @ Ipp:	23.2V
Supplier Device Package:	Case 5A (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):	215A
Series:	Military, MIL-PRF-19500
Voltage - Breakdown (Min):	15.6V
Voltage - Reverse Standoff (Typ):	14V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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TVS - Diodes, or Transient Voltage Suppressor (TVS) Diodes, are electronic components consisting of two diodes connected in antiparallel, whose purpose is to protect sensitive electronic circuitry from overvoltage transients and electrostatic discharges. TVS diodes provide superior protection from static electricity and overvoltage transients by clamping or diverting harmful surge currents away from a sensitive circuit. The popular MXL5KP14A, a unidirectional 1500W Peak Pulse Power (PPR) TVS Diode, is routinely used for TVS diode applications.

Device Architecture and Structure

The MXL5KP14A is a 5.0-V unidirectional diode with a breakdown voltage of 14-V. The device is constructed of two back-to-back Zener diodes, identified as the “body” and “dome”. The body is connected to the positive terminal, while the dome is connected to the negative terminal of the diode. The mechanism for the device\'s operation is based on the breakdown voltage of the Zener diodes, in which the body and dome are designed to breakdown at different voltages. When a voltage exceeding the breakdown voltage is applied, the body is the first to breakdown, then it clamps the voltage and diverts the current over the dome to the negative terminal.

Application Fields

MXL5KP14A is one of the most popular TVS diodes used in many applications where protection and reliability are paramount. It is commonly used in applications such as cellular and cordless phones, MP3 players, portable hard drives, and automotive systems. The device can also be used in applications such as power line protection, audio/video protection and electrostatic discharge (ESD) protection. It is highly suitable for use in the most demanding automotive applications, such as in body systems, air conditioning systems, fuel injection systems, and even in high-temperature automotive environments such as under-hood electronics.

Working Principle

The MXL5KP14A uses a pair of back-to-back Zener diodes for overvoltage protection, where the body and dome are specially designed to breakdown at different voltages. This mechanism prevents current from overrunning the device and damaging sensitive electronic circuitry. When a voltage exceeding the breakdown voltage is applied, the body is the first to breakdown, then it clamps the voltage and diverts the current over the dome to the negative terminal. This effectively absorbs and dissipates the energy from the surge, thus providing protection for the connected circuitry.

The MXL5KP14A also offers some additional benefits such as excellent clamping capability, high surge current handling capability, fast response time, and a low leakage current. These features make the device especially suitable for use in automotive applications, where stability and reliable operation are essential. The device is also RoHS-compliant, so it can be used in a wide variety of applications without concern for environmental concerns.

The MXL5KP14A is one of the most popular TVS Diodes used in many applications where protection and reliability are paramount. Its robust design ensures reliable operations in the most demanding environments, while its low leakage current and fast response time offer protection against damaging overvoltage transients. The device offers excellent clamping capability and high surge current handling capability, making it suitable for use in a wide range of applications, such as audio/video protection, power line protection, and electrostatic discharge (ESD) protection.

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