TPC20CAHM3/I Circuit Protection

Voltage - Clamping (Max) @ Ipp:	27.7V
Supplier Device Package:	TO-277A (SMPC)
Package / Case:	TO-277, 3-PowerDFN
Mounting Type:	Surface Mount
Operating Temperature:	-65°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	Automotive
Power Line Protection:	No
Power - Peak Pulse:	1500W (1.5kW)
Current - Peak Pulse (10/1000µs):	54.2A
Series:	Automotive, AEC-Q101, PAR®, eSMP®
Voltage - Breakdown (Min):	19V
Voltage - Reverse Standoff (Typ):	17.1V
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

Transient Voltage Suppressors (TVS) diodes are a type of electrical part that can protect sensitive electronics from damage caused by electrical spikes. The TPC20CAHM3/I is one such type of device, and it is available in a range of voltage and power ratings to suit different applications. In this article, we will look at the TPC20CAHM3/I application field and the working principle behind it.

TPC20CAHM3/I Application Field

The TPC20CAHM3/I device is typically used to protect circuits from over-voltage events such as lightning strikes or accidental connections to high power sources. It is available in various voltage and power ratings, ranging from 48V and 1.5A to 600V and 4A. This means it can be used in a wide range of applications with different power and voltage requirements. It is also designed to be very reliable and has a low clamping voltage, making it effective at suppressing transients up to 600V of amplitude.

Working Principle of the TPC20CAHM3/I

The working principle of the TPC20CAHM3/I is based on the Thyristor-based Avalanche Breakdown Device (TAD) principle. In this setup, a thyristor and a Zener diode are connected in parallel. When a transient voltage exceeds the avalanche rating of the Zener diode, the thyristor triggers, creating a low impedance path from the transient source to the load. This divert a large proportion of the voltage to the load, protecting the sensitive circuitry from damage.

Conclusion

The TPC20CAHM3/I is a device designed to protect sensitive electronics from damage caused by transients. It is available in a range of voltage and power ratings enabling it to be used in a wide range of applications. The device is based on the Thyristor-based Avalanche Breakdown Device (TAD) principle, and it utilizes a combination of thyristors and Zener diodes to divert voltage to the load, protecting sensitive circuit components from damage.

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