ICTE12C-E3/54 Circuit Protection

Current - Peak Pulse (10/1000µs):	70A
Base Part Number:	ICTE*
Supplier Device Package:	1.5KE
Package / Case:	DO-201AA, DO-27, Axial
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	1500W (1.5kW)
Series:	TransZorb®
Voltage - Clamping (Max) @ Ipp:	17.1V
Voltage - Breakdown (Min):	14.1V
Voltage - Reverse Standoff (Typ):	12V
Bidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TVS - Diodes: ICTE12C-E3/54 Application Field and Working Principle

TVS diodes are a kind of special diodes that are used where an absolute maximum clamping voltage is required to protect the device from voltage transients. These diodes provide extra protection against transients that cause damage to sensitive components, such as gate, source tubes, and complementary MOSFETs. The ICTE12C-E3/54 is such a kind of device.

ICTE12C-E3/54 Application Field

The ICTE12C-E3/54 is a bidirectional TVS diode that is capable of operation up to a maximum breakdown voltage of 54V. It utilizes glass passivated junctions to ensure a reliable and fast response and is useful in various multiple applications such as:

• Surge protection for telecom applications
• Over-voltage protection for interface circuits
• Data line protection
• Usb/HDMI port protection
• ESD protection for sensitive semiconductor devices
• Over-voltage protection for automotive and consumer applications

It is suitable for a wide range of operating temperatures (-55°C to +125°C) and can withstand high surge ratings.

Working Principle

The basic principle of TVS diodes is the movement of charge carriers. When an over-voltage state (a voltage transient) is encountered, the intrinsic charge carriers are accelerated and move through the device. The charge carriers, accelerated due to the high potential, are then collected by the anode or the cathode. As a result, a large amount of current is generated and this is what is known as clamping effect.The ICTE12C-E3/54 operates as a bidirectional device and is able to provide protection against ESD transients. The normal bi-directional clamping voltage, specified by its minimum break down voltage (VBRm), is usually only 10% higher than the rated maximum clamping voltage. The device has a soft-recovery feature that helps reduce the device power dissipation, and thus, limits the potential for thermal runaway conditions. The ICTE12C-E3/54 has a very low reverse current leakage (<50µA) that is independent of its operating temperature.

Conclusion

The ICTE12C-E3/54 from Infineon is an effective device providing over-voltage and protection against transients. It is suitable for a wide operating temperature range and contains a range of protective features. The device can be used in multiple applications, from telecom and multimedia applications to automotive and consumer applications. The clamping characteristic and soft-recovery feature ensures superior protection against damaging voltage transients.

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