SMLJ43CA-Q

Transient voltage suppression (TVS) diodes are designed to provide surge protection for electrical components and systems exposed to transient over-voltage power spikes. The SMLJ43CA-Q TVS diode is an advanced bi-directional TVS diode designed to protect sensitive electronic components against destructive voltage spikes. This diode features an ultra-low dynamic resistance for lightning-fast response time and low clamping voltage.

Application Field of SMLJ43CA-Q

SMLJ43CA-Q TVS diode can be used in a number of applications, such as computer, network, automotive, audio-video, consumer, telecommunications, and medical equipment. It is also ideal for industrial controllers, home appliances, and other data-sensitive electronics. This diode is also used in motor control, lighting and power control, solar panel protection applications.

Working Principle

SMLJ43CA-Q uses a hot carrier diode to provide protection against electrostatic discharge (ESD) and transients. It uses a combination of avalanche breakdown effects and field-channel effects to create a low inductance diode. When the external voltage exceeds the firing voltage, the diode detects the over-voltage transient and begins to clamp the power surge. The diode will draw its own current, thus limiting the surge to a safe level and protecting the surrounding components from destruction.

The SMLJ43CA-Q has a power dissipation of 390W peak pulse power, a peak surge current of 4.3A, and a maximum peak voltage of 600V. Its peak clamping voltage is 7V, and the capacitance is 1200pF. It has a flat clamping curve, thus providing reliable protection when faced with voltage transients with varying amplitudes.

Conclusion

In summary, the SMLJ43CA-Q has an ultra-low dynamic resistance for lightning-fast response time and low clamping voltage. It is ideal for a number of applications, and can provide reliable protection against ESD and other transient overvoltage power surges.