MSMBJ16CAE3

MSMBJ16CAE3 Application Field and Working Principle

MSMBJ16CAE3 is an ultra-low capacitance bidirectional TVS diode for protecting high-speed data interfaces. It combines the best ESD / EFT performance with HRP (High Retention Performance) to protect signal lines even during signal level transitions. MSMBJ16CAE3 is suitable for data line protection of 0.1-2V and is a key protection device in applications ranging from automotive electronics, personal electronics, and industrial equipment.

Applications

MSMBJ16CAE3 is an ideal choice for protecting sensitive data lines up to 2V, such as those found in automotive, consumer and industrial applications. It provides robust ESD / EFT protection up to 15kV and 10.2A for human body model ESD (IEC 61000-4-2) and up to ΩA for EFT protection (IEC 61000-4-4). High retention performance (HRP) ensures performance even when signals are changing, and ultra-low capacitance properties protect data transfer rates up to 8Gbps. Typical applications include:

• Automotive electronics
• Consumer electronics
• Industrial equipment
• USB 3.0 protection
• Audio-video switching

Working Principle

When the voltage on the protected line exceeds the clamping voltage, MSMBJ16CAE3 turns on to clamp the voltage and protect the target device. When the voltage is greater than the clamping voltage, MSMBJ16CAE3 conducts the excess current away. This current diverts the surge energy away from the protected device, preventing its destruction. MSMBJ16CAE3 can block voltages in both forward and reverse directions, acting as a bidirectional device.

MSMBJ16CAE3 has an ultra-low capacitance of 0.2pF (in the off-state). This makes it suitable for high-speed signals up to 8Gbps. It is constructed using a proprietary trench architecture, with a dedicated pin to provide exceptional ESD handling of up to 15kV and 10.2A.

When the transient voltage exceeds the threshold voltage, MSMBJ16CAE3 will conduct during the positive or negative half cycle. This reduces the voltage across the protected devices and diverts the transient energy away from the sensitive pins. The ultra-low capacitance allows MSMBJ16CAE3 to also be used for protecting high-speed data lines.

Conclusion

MSMBJ16CAE3 provides an effective ESD and EFT protection solution for high-speed data interface protection, especially for those operating in the 0.1-2V range. Its ultra-low capacitance properties allow it to protect signals up to 8Gbps, while its bidirectional capabilities make it suitable for both positive and negative transients. Applications for MSMBJ16CAE3 include automotive, consumer, industrial, and audio-video switching electronics.