SMBJ6.5AHE3/52

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The SMBJ6.5AHE3/52 is a unidirectional transient voltage suppressor diode. It is primarily used to actively suppress over-voltage transients generated by electrostatic discharge (ESD), lightning, and inductive loads in low voltage circuits. It is available in an SMA package, which offers optimum performance, and is designed to protect against hazardous voltages resulting from industrial and automotive electronics failures.

The SMBJ 6.5AHE3/52 is a general purpose transient voltage suppressor diode with a standard 6.5 ampere rating and a peak pulse current rating of 20 amps. It is designed to protect components in circuits from electrostatic discharges (ESD) up to ±37 kV and transient over-voltage at a maximum peak pulse power of 760 watts. It also features a working voltage of up to 6.5 V and a breakdown voltage of 6.5 V.

In terms of application fields, the SMBJ6.5AHE3/52 is used in automotive, consumer and industrial applications that require fast response to over-voltage protection. It is particularly useful for automotive applications as it can provide protection against extreme voltage hazards caused by a battery over-voltage fault, as well as from ESD events in vehicle systems.

In terms of working principle, the SMBJ6.5AHE3/52 utilizes a Silicone Avalanche suppressor diode that quickly clamp the voltage produced by transient over-voltage events; thereby protecting the device and other components against damage. When the voltage is above 6.5V, the diode turns into a low-voltage-drop conducting path and prevents the circuit from over-voltages. After the transient is over, the diode gradually reverts back to its off-state.

The SMBJ6.5AHE3/52 can also be combined with other devices such as capacitors and varistors to create a hybrid ESD protection circuit, if enhanced performance is desired. This allows the circuit to offer higher levels of protection against lightning strikes and other transient over-voltage events.

Overall, the SMBJ6.5AHE3/52 is an ideal component for providing efficient over-voltage protection in low voltage circuits with harsh environmental conditions. It is capable of providing fast response to transient over-voltage events, while not compromising the reliability of the system.

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