P6SMB62A Circuit Protection

Voltage - Clamping (Max) @ Ipp:	85V
Supplier Device Package:	DO-214AA (SMBJ)
Package / Case:	DO-214AA, SMB
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	600W
Current - Peak Pulse (10/1000µs):	7.2A
Series:	P6SMB
Voltage - Breakdown (Min):	58.9V
Voltage - Reverse Standoff (Typ):	53V
Unidirectional 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: P6SMB62A Application Field and Working Principle

TVS - Diodes, also known as Transient Voltage Suppressors (TVS) Diodes, are semiconductor components designed to protect devices from transient high voltage and electrical surge events like inductive load switching, load dump, cable plugging, and lightning strikes. They are widely used in automotive, as well as many other areas where transient protection from voltage overshoots is desired.The P6SMB62A is a widely used TVS diode, designed to protect against destructive voltage transients in automotive applications. The component is packaged in a 6 pin TO-247 surface-mount package for easy mounting on automotive PCBs. It can handle peak power dissipation of 600W (typical), has a maximum storage and operating temperature range of -55°C to 150°C, and VBR (Breakdown Voltage) ranging from 5.5V to 444V.The P6SMB62A uses a highly reliable Zener diode architecture to provide transient voltage protection in automotive applications. It includes a proprietary, avalanche-rated Zener diode with an integrated zener clamping termination structure to ensure low clamping voltage and fast response. The P6SMB62A is designed to provide high levels of protection against destructive voltage transients caused by lightning strikes, inductive load switching, and load dump.The breakdown voltage of the P6SMB62A is set via an internal resistor, and the voltage is typically rated at +/- 10% of nominal. The Zener voltage is further enhanced by a series of carefully designed surge absorbing circuits for maximum protection against voltage overshoots. The diode is rated for a maximum peak power dissipation of 600W (typical) and can handle up to 8000A of surge current.The working principle of a P6SMB62A TVS diode is fairly straightforward. When a voltage transient is applied to the reverse-biased anode terminal, the Zener diode will break down as the applied voltage passes the breakdown voltage of the diode. At this point, the diode will begin to conduct current and rapidly reduce the voltage until it reaches a stable value determined by the Zener diode breakdown voltage. This ensures that any voltage spikes above the Zener diode breakdown voltage will be quickly suppressed.In summary, the P6SMB62A is a widely used TVS diode designed to protect against voltage transients in automotive applications. It uses a highly reliable Zener diode architecture to provide transient voltage protection and can handle peak power dissipation of up to 600W (typical). The component is packaged in a 6 pin TO-247 surface-mount package for easy mounting on automotive PCBs and has a maximum storage and operating temperature range of -55°C to 150°C. The working principle of the P6SMB62A is based on the Zener diode architecture, which is designed to break down quickly and reduce the voltage when a transient is applied to the reverse-biased anode terminal.

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