TP1.5KE47A

Voltage - Clamping (Max) @ Ipp:	64.8V
Supplier Device Package:	DO-201
Package / Case:	DO-201AA, DO-27, Axial
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	Automotive
Power Line Protection:	No
Power - Peak Pulse:	1500W (1.5kW)
Current - Peak Pulse (10/1000µs):	23.5A
Series:	Automotive, AEC-Q101, TP1.5KE
Voltage - Breakdown (Min):	44.7V
Voltage - Reverse Standoff (Typ):	40.2V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction: TVS - Diodes

TVS - Diodes, short for Transient Voltage Suppression Diodes, are semiconductor devices with a very fast response and high voltage capability. They are designed to protect sensitive electronic components against the effects of transient voltage spikes.

TP1.5KE47A application field and working principle:

TP1.5KE47A is part of the Transient Voltage Suppressor series, designed to protect electronic circuits from operating outside their normal voltage range. It is an axial-leaded, glass passivated junction TVS diode, offering 400W peak pulse power dissipation. This type is R6, which has a 6.8mA Ipp surge rating and stand-off voltage of 15V. The breakdown voltage of this TVS diode ranges from 16V to 17.5V.This type of TVS diode is used in a wide variety of applications, including transformer-secured ballasts, LCDS, power supplies, resistive load applications, telephone line filtering, automotive electronics, and even overvoltage protection systems. It has a pulse width of 5ms and a cap surge voltage of 3.3V.The working principle of this type of TVS diode is simple. It is composed of a junction of two diodes, with each junction having its own voltage-dependent capacitance. During normal operation, the charge stored in the capacitance prevents current flow if the input voltage is above the breakdown voltage. However, when a transient voltage spike occurs, the capacitance is quickly discharged and the junction current is reduced to almost zero - the device functions as an electronic switch, turning off all current flowing through the circuit and protecting the electronic components from the surge. This is why they are such an effective protection device.

Conclusion:

In conclusion, TP1.5KE47A is a type of Transient Voltage Suppressor which offers excellent protection against voltage spikes for a variety of application fields. It has a fast response time and a high voltage capability, making it a great choice when you need to protect sensitive electronic components. Its working principle is based on its voltage-dependent capacitance, which absorbs and dissipates the energy from the surge.

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