MSMBJSAC12E3

Voltage - Clamping (Max) @ Ipp:	19V
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):	25A
Series:	Military, MIL-PRF-19500
Voltage - Breakdown (Min):	13.3V
Voltage - Reverse Standoff (Typ):	12V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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MSMBJSAC12E3 TVS - DiodesMSMBJSAC12E3 is a transil diode, or Transient Voltage Suppressor (TVS). It is a type of semiconductor diode that is primarily used to protect electronic systems from voltage spikes. The MSMBJSAC12E3 is a bi-directional diode and is commonly used in automotive and telecom applications to provide a high level of protection against transient voltage and current spikes.The TVS diode is composed of a reverse-biased silicon diode connected in reverse bias across the power supply, such that any increase in voltage will cause the diode to become forward-biased and start conducting, thus limiting the voltage across the power supply. The diode’s capacitance allows it to still conduct while the voltage is rising, thus stopping the voltage increase before it can damage the circuit. Once the voltage has decreased, the diode will switch back to its reverse-biased state, thus allowing the power supply to continue operating as normal.The MSMBJSAC12E3 is a 12V, 12A unidirectional TVS diode. It has a clamping voltage of 10V, and a maximum peak pulse power of 400W. Its transient response time is in the sub-nanosecond range, and it is capable of handling power spikes up to 2kW. It is rated for an operating temperature range of -55℃ to +150℃ and has a storage temperature range of -55℃ to +175℃.The MSMBJSAC12E3 is designed to protect against transient voltage and current spikes in automotive and telecom applications, such as surge protection for DC-DC converters, mobile phone chargers, and in-vehicle electronic systems. It can also be used in automotive ECUs, engine controllers, airbag circuits, and antilock-brake systems.The working principle of the MSMBJSAC12E3 is relatively simple. When a voltage spike occurs, the voltage across the diode will increase and the diode will switch its internal state from reverse bias to forward bias. This causes the diode to conduct, limiting the voltage across the power supply. Once the voltage decreases, the diode will switch back to its reverse bias state, allowing the power supply to return to its normal operating voltage.The MSMBJSAC12E3 is a reliable and robust TVS diode. It is capable of handling a wide range of power spikes, has a wide operating temperature range, and offers a fast response time. It is designed for use in automotive and telecom applications, and is ideal for protecting sensitive electronic components from voltage and current spikes.

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