MSMBJSAC45

Voltage - Clamping (Max) @ Ipp:	77V
Supplier Device Package:	SMBJ (DO-214AA)
Package / Case:	DO-214AA, SMB
Mounting Type:	Surface Mount
Operating Temperature:	-65°C ~ 150°C (TJ)
Capacitance @ Frequency:	30pF @ 1MHz
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	500W
Current - Peak Pulse (10/1000µs):	6.8A
Series:	Military, MIL-PRF-19500
Voltage - Breakdown (Min):	50V
Voltage - Reverse Standoff (Typ):	45V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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The MSMBJ SAC45 is one of the most commonly used TVS-Diodes used in electronic devices and circuits. It is a bidirectional breakover diode which is used for protection against transient overvoltage and over-current events. It provides a low capacitance, low clamping voltage, fast response time and low leakage current.The SAC45 is semiconductor diode which is composed of a wide variety of elements including silicon dioxide (SiO2), aluminium oxide (Al2O3), arsenic (As), phosphorus (P), boron (B), magnesium (Mg) and copper (Cu). These materials are combined together in order to form a semiconductor structure which is capable of providing the required performance characteristics.The SAC45 has two p+ and n+ layers which are separated by a common silicon dioxide (SiO2) layer. The structural arrangement of these two layers allows for a predictable electric field to be established within them. This electric field is responsible for providing the desired performance characteristics of the particular device.The SAC45 structure is designed so that under normal operating conditions the device is nonconductive. However, when a voltage or current surge higher than a predetermined level is encountered, the electric field created within the semiconductor structure causes the p+ and n+ layers to switch on and form multiple junctions. This results in a “clamping” action which effectively limits the amount of voltage or current that can flow through the device. As such, it provides protection against voltage and current surges which may damage an electronic component or circuit.The SAC45 device is capable of responding quickly to voltage and current surges and, as such, is an ideal choice for protecting against transient overvoltage and overcurrent events. The fact that the SAC45 has a low capacitance, low clamping voltage, fast response time and low leakage current makes it even more suitable for protecting against these transient events.In addition, the SAC45 can be used to provide ESD protection on sensitive components such as ICs; as well as providing voltage protection on motor controllers; switching power supplies; and data lines. This is due to the fact that the SAC45 is optimized for fast response times and can quickly react to voltage transients.The SAC45 is an essential component in many electronic devices and circuits, providing reliable protection against transient overvoltage and over-current events. The fact that the device has a low capacitance, low clamping voltage, fast response time and low leakage current makes it an ideal choice for protecting against these events. Furthermore, the SAC45 is capable of providing ESD protection on sensitive electronic components, as well as offering protection on motor controllers, switching power supplies and data lines.

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