CD214A-T28ALF

Voltage - Clamping (Max) @ Ipp:	45.4V
Supplier Device Package:	SMA (DO-214AC)
Package / Case:	DO-214AC, SMA
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	400W
Current - Peak Pulse (10/1000µs):	8.8A
Series:	--
Voltage - Breakdown (Min):	31.1V
Voltage - Reverse Standoff (Typ):	28V
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 (Transient Voltage Suppression) diodes are devices used to protect electrical circuits from exposure to damaging, overvoltage transients. The CD214A-T28ALF is a popular TVS diode that has a wide range of application fields and working principles. We will explore those further in this article.

CD214A-T28ALF Application Fields

The CD214A-T28ALF is a particularly well suited diode for applications in automotive and energy conversion systems, as it is able to withstand up to 34V transient voltage. This makes it suitable for protecting any DC voltage up to 30V. It can be used in applications such as Data and Signal Line Protection, Powertrain System Protection, Transients Motor Control, DC/DC Conversion , and Integrated Circuit Transient Protection. For automotive applications, the CD214A-T28ALF is perfect for protecting powertrains, engine control, meters, relays, low voltage components, and other electronic devices which may be subject to transients. It behaves similarly to an AC power line transformer, with a breakdown voltage of 28V and a clamping voltage of 34V.

CD214A-T28ALF Working Principle

The CD214A-T28ALF works by able to effectively absorb electricity in the event of a transient voltage surge and then rapidly discharge it into an acceptable level. The internal structure of the device is designed to make this happen quickly and safely. The device has an anode, a cathode, and an integrated diode. The anode is the positive input voltage of the device and is connected to the protective circuit connected to the circuit to be protected. When the voltage to the anode exceeds the breakdown voltage, the diode quickly triggers, and allows current to flow from the anode to the cathode. This action quickly limits the peak voltage to the safe clamping voltage.

Conclusion

The CD214A-T28ALF is a very popular TVS diode that is applicable to a variety of automotive and energy conversion systems. It is a reliable and effective way of protecting circuits from hazardous overvoltage transients. Its working principle consists of an anode, a cathode, and an integrated diode, which works together to quickly and safely absorb and discharge electricity.

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