1.5KE75A A0G Circuit Protection

Voltage - Clamping (Max) @ Ipp:	103V
Supplier Device Package:	DO-201
Package / Case:	DO-201AA, DO-27, Axial
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	1500W (1.5kW)
Current - Peak Pulse (10/1000µs):	15A
Series:	1.5KE
Voltage - Breakdown (Min):	71.3V
Voltage - Reverse Standoff (Typ):	64.1V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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1.5KE75A A0G is a type of TVS diode used for protection of electronic devices from voltage transients induced by a range of phenomena and conditions, including lightning, inductive load switching, dipole alignment and running motors. This device is designed to withstand high surge powers and has excellent clamping capability.Working PrincipleThe 1.5KE75A A0G works on the principle of electrostatic discharge (ESD), which is when voltage equal and opposite in polarity of the power supply are generated. This is typically caused by sudden friction or an electrical event. The 1.5KE75A A0G has been designed to absorb these instantaneous voltages by limiting the voltage on the external terminals.To achieve this, 1.5KE75A A0G is constructed using two circuit elements connected in series - a Zener diode and an avalanche diode. Both elements act in parallel to absorb the ESD energy in the form of a current flowing through the device.The Zener diode keeps the voltage across the device at a constant level regardless of the external transient voltage, while the avalanche diode provides low clamping voltage and fast response time to ESD with minimal voltage overshoot. This combination of two elements keeps the voltage from rising too high and limits the current overshoot, both of which help protect sensitive electronic components from damage from sudden power spikes.Application FieldsThe 1.5KE75A A0G is specifically designed for ESD protection applications and is typically used in electronic interfaces and communication equipment. It is particularly suited for applications that deal with fast transition times and high power surges, such as cellular phones, PDAs, toys, touch screens, industrial controllers, and power supplies.The 1.5KE75A A0G is also useful for protecting electronic components and systems against the environmental hazards of high-altitude operations, high-altitude electromagnetic pulses, and radio frequency interference.Additionally, the 1.5KE75A A0G is suitable for all types of surface mount device (SMD) applications, as the device is designed to fit SMD packages with footprints as small as 0.3mm.ConclusionIn conclusion, the 1.5KE75A A0G is a versatile, low-cost, high-reliability protection device. It is designed to provide low clamping voltage, fast response time, and maximum transient energy absorption. It is suitable for a variety of applications and is typically used in electronic interfaces and communication equipment for ESD protection.

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