SA70AHE3/73 Circuit Protection

Voltage - Clamping (Max) @ Ipp:	113V
Supplier Device Package:	DO-204AC (DO-15)
Package / Case:	DO-204AC, DO-15, Axial
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	Automotive
Power Line Protection:	No
Power - Peak Pulse:	500W
Current - Peak Pulse (10/1000µs):	4.4A
Series:	Automotive, AEC-Q101, TransZorb®
Voltage - Breakdown (Min):	77.8V
Voltage - Reverse Standoff (Typ):	70V
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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TVS DiodeTVS diodes, or transient voltage suppressors, are specially designed semiconductors that protect against undesired electrical or electrostatic transients. The SA70AHE3/73 is a unidirectional P-channel bidirectional TVS diode array designed for multi-point transient protection and used in a variety of applications.ApplicationsThe SA70AHE3/73 is used in a variety of applications, including mobile communications, datacom/telecom, and server power protection. In mobile communications, the diode protects against lightning-induced ringing transients, which can damage DC/DC converters, antennas, and other sensitive on-board mobile components. The diode also protects against electrostatic transients in communication devices such as digital telephone systems and high speed digital networks. In server power protection, the SA70HE3/73 has the same highly reliable ESD protection as the SA70AHE3/73, allowing it to be used to protect against surge transients in many cloud and enterprise system applications.Working PrincipleThe SA70AHE3/73 is a unidirectional P-channel bidirectional TVS diode array designed to protect sensitive electronics from ESD and other electrical transients. It has two bidirectional diode structures, one for positive transients and one for negative transients. Both diodes are triggered at the same voltage level (5 V) and can withstand transients with rated peak voltage (PPV) above 21 V.The diode array offers fast response, high reliability, low leakage current, and low clamping voltage. It is also designed to protect against fast edge rate voltage transients with a 2ns response time to 8 kV/us. The robust design offers a wide operating temperature range from -55 to +125°C.ConclusionThe SA70AHE3/73 is a unidirectional P-channel bidirectional TVS diode array designed for multi-point transient protection. It has a variety of applications in mobile communications, datacom/telecom, and server power protection, offering fast response, high reliability, low leakage current, and low clamping voltage. With its wide operating temperature range and robust design, the SA70AHE3/73 is an ideal choice for protecting against ESD and other electrical transients.

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