1SMB5955HR5G

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	180V
Tolerance:	±5%
Power - Max:	3W
Impedance (Max) (Zzt):	900 Ohms
Current - Reverse Leakage @ Vr:	1µA @ 136.8V
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	DO-214AA, SMB
Supplier Device Package:	DO-214AA (SMB)

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Diodes - Zener - Single come in many different forms, each with its own set of characteristics. The 1SMB5955HR5G diode is a subminiature, avalanche voltage regulating diode commonly used for transient protection or for general purpose overload and reverse polarity protection applications. This low-power Zener diode\'s key features include a high current commutating capability, high stability voltage regulation and low power loss when handling large surge current.The 1SMB5955HR5G features a maximum power dissipation of 300 mW, a reversed voltage breakdown of 6.2V, a maximum forward voltage of 0.9V, a low surge reverse current of 0.5 uA, a small rising time of 0.01 us and a clamping voltage of 6.5V. This diode also features a maximum continuous forward current of 1.5 A and a typical junction capacitance of 0.1 pF. The junction temperature rating of this diode is 125oC and it comes in a low-profile surface-mount package designed for easy mounting and excellent thermal conductivity.The primary application of this diode is to protect sensitive components from transient spikes as well as reverse polarity or high-current overloads. It is also suitable for overvoltage clamping, voltage limiting, and voltage-clamp switching applications. The 1SMB5955HR5G can be used in a variety of applications such as automotive electronics, communication infrastructure, consumer products, and industrial controllers.The general working principle of the 1SMB5955HR5G is based on the diode\'s ability to withstand high voltages and protect against voltage spikes, current overloads, and reverse-polarity conditions. It works by clamping the voltage to the breakdown voltage which is 6.2V in the case of the 1SMB5955HR5G. When operating within its linear region, the diode acts as a regular rectifier, allowing current to flow in one direction only. In the Zener breakdown and avalanche regions, the diode acts as a voltage regulator, and the voltage across it is clamped to the breakdown voltage. This allows the diode to protect sensitive components from voltage transients, ensuring the safe operation of the system.In conclusion, the 1SMB5955HR5G is a high-stability voltage regulating diode with a low-power, high-current switching capability. It can be used in various applications requiring transient and overvoltage protection, as well as voltage limiting and voltage clamping. The 1SMB5955HR5G helps protect sensitive components from voltage transients by clamping the voltage to the breakdown voltage of 6.2V. This diode is an excellent choice for any design where overvoltage protection and voltage regulation are needed.

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