SM6T18AHE3/5B

Series:	Automotive, AEC-Q101, SM6T, TransZorb®
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Zener
Unidirectional Channels:	1
Voltage - Reverse Standoff (Typ):	15.3V
Voltage - Breakdown (Min):	17.1V
Voltage - Clamping (Max) @ Ipp:	25.2V
Current - Peak Pulse (10/1000µs):	24A
Power - Peak Pulse:	600W
Power Line Protection:	No
Applications:	Automotive
Capacitance @ Frequency:	--
Operating Temperature:	-65°C ~ 150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	DO-214AA, SMB
Supplier Device Package:	DO-214AA (SMBJ)
Base Part Number:	SM6T

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Introduction

The SM6T18AHE3/5B is a transient voltage suppressor (TVS) diode that is designed to protect sensitive equipment from over-voltages and current spikes. The all-silicon structure and low on-state resistance allow these parts to safely dissipate high energies without any damage to the protected circuit. This versatile TVS diode is suitable for use in automotive, industrial, computing, and telecom equipment.

Features

The SM6T18AHE3/5B offers many features that make it an ideal solution for overvoltage and spike protection. These features include:

• Low breakdown voltage range from 6 volts to 18 volts
• High ESD ratings up to 25 kilovolts for machine model (HBM)
• High breakdown voltage sensitivity range from 200 volts to 2.5 kilovolts
• Low on-state resistance
• High pulse power capability
• Autostop technology for overvoltage protection
• Tape and reel packing for high-volume production

Application Fields

The SM6T18AHE3/5B is an ideal choice for protecting virtually any application from overvoltages and spikes. This TVS diode is highly suitable for use in automotive applications, such as inverters and engine control modules. It can also be used in industrial equipment, such as drives, electronics, and robotics. Additionally, it can be used in home appliances, telecom applications, and computing devices.

Working Principle

The working principle of the SM6T18AHE3/5B is fairly straightforward. The diode is composed of a P-N junction that works by suppressing overvoltages and current spikes. When an overvoltage or current spike is detected by the TVS diode, the P-N junction quickly reduces the voltage or current. This process is known as “clamping” and it reduces the chances of damage to sensitive electronic components. Additionally, this TVS diode also has a “Autostop” feature that helps protect against overvoltage conditions.

Conclusion

In conclusion, the SM6T18AHE3/5B is a versatile TVS diode that can be used for protection against overvoltages and current spikes. This diode is suitable for use in automotive, industrial, telecom, and computing applications. Additionally, it offers a number of features that make it an ideal choice for overvoltage and spike protection. Finally, it works by suppressing overvoltages and current spikes through a P-N junction, as well as an “Autostop” feature for overvoltage protection.

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