SMB8J24CAHE3/52

Current - Peak Pulse (10/1000µs):	20.6A
Base Part Number:	SMB8J
Supplier Device Package:	DO-214AA (SMB)
Package / Case:	DO-214AA, SMB
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	Automotive
Power Line Protection:	No
Power - Peak Pulse:	800W
Series:	Automotive, AEC-Q101, TransZorb®
Voltage - Clamping (Max) @ Ipp:	38.9V
Voltage - Breakdown (Min):	26.7V
Voltage - Reverse Standoff (Typ):	24V
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 Suppression (TVS) devices are essential components used to protect sensitive electronics from transients – short duration, high-voltage/high-current spikes. This type of protection is ideal for use in a variety of applications, such as power supplies, motor drives, and communication systems. The SMB8J24CAHE3/52 device is an example of a TVS diode used in such applications.

Application Field

The SMB8J24CAHE3/52 is a two-terminal dual lateral TVS diode specifically designed to protect sensitive electronic equipment against electrostatic discharge (ESD), electric overstress (EOS), and other multi-directional transient voltages. This bi-directional device is favorable for use in automotive and industrial applications. It provides automotive-grade ESD and EFT protection for 12V or 24V power systems and switching systems in harsh environment conditions.

Working Principle

The SMB8J24CAHE3/52 consists of two avalanche breakdown regions connected in parallel through a common junction. When the power supply is above this breakdown voltage, the diode is in a high resistance state (OFF state). When the power supply voltage downtrends and drops below the breakdown voltage level, a low resistance conductive state (ON state) is established. The device\'s peak power dissipation capability and fast response time (within nanoseconds) enables it to suppress transients quickly and effectively. To ensure optimal performance, the SMB8J24CAHE3/52 adheres to IEC 61000-4-2, automotive standard AEC-Q101, and CISPR 25 emission immunity. Its maximum clamping voltage is 20.2V and its peak pulse power dissipation is up to 820W. The device has a built-in ESD protection of 15.5 kV and EFT protection of 30A.

Conclusion

The SMB8J24CAHE3/52 is a two-terminal, dual-lateral TVS diode intended for use in automotive and industrial applications. Its fast response time and high peak power dissipation make it ideal for suppressing transients. The device is compliant with IEC 61000-4-2, automotive standard AEC-Q101, and CISPR 25 emission immunity, providing reliable protection for 12V or 24V power systems and switching systems.

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