MASMBJSAC18

Voltage - Clamping (Max) @ Ipp:	28.8V
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):	15A
Series:	Military, MIL-PRF-19500
Voltage - Breakdown (Min):	20V
Voltage - Reverse Standoff (Typ):	18V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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- [MASMBJSAC18 Application Field and Working Principle](#masmbjsac18-application-field-and-working-principle)- [Introduction](#introduction)- [Applications](#applications)- [Working Principle and Operation](#working-principle-and-operation)# MASMBJSAC18 Application Field and Working Principle## IntroductionMASMBJSAC18 is a transient voltage suppressor (TVS) diode chip. It provides excellent ESD protection and low static capacitance, in addition to its low on resistance. The MASMBJSAC18 has a built-in ceramic lamination process that offers a high ESD protection capability exceeding 8kV per IEC61000-4-2. It also has low capacitance, good breakdown voltage and low leakage current. It is available in different packages, such as SOP-8, SOT-23, and DFN. The MASMBJSAC18 is suitable for a wide range of applications such as power supplies, automotive electronics, smartphones and tablet computers. Its low on-resistance, high-temperature rating and low-capacitance make it suitable for protecting both digital and analog circuits in a variety of applications.## ApplicationsThe MASMBJSAC18 provides a low-capacitance TVS diode suitable for protecting against transient surges and ESD in automotive electronics, industrial applications and consumer products. It is particularly well suited for protecting against ESD and transient surges in electrically line connected portable electronic devices. The MASMBJSAC18 provides an ideal solution for protecting against ESD strikes of up to 8 kV per IEC 61000-4-2. It also provides excellent protection against power line surges, in addition to the low EMC radiation interference in automotive electronics applications.The MASMBJSAC18 also provides a good solution for protecting automotive electronics from high temperature conditions such as engine start-up. The low on-resistance of the MASMBJSAC18 ensures that it is compatible with system-on-chip and gate-level logic circuits. Furthermore, the MASMBJSAC18 is suitable for use in power supplies, and is well suited to protect against overvoltage surges in such applications. ## Working Principle and OperationThe MASMBJSAC18 achieves ESD protection through the use of its built-in ceramic lamination process. This process uses a thin film technology to create a distributed capacitance and resistive element in the device. The ceramic laminated structure provides excellent ESD protection since the thin film capacitance can absorb energy in a short period of time. In addition, the resistive element provides the device with excellent EMC performance by providing strong immunity to noise interference.The MASMBJSAC18 is operated in the avalanche breakdown region, which provides the necessary protection against ESD events. When an ESD event occurs, the P-N junction of the device starts to avalanche and the current that is generated is limited by the distributed resistive element of the device. This ensures that the voltage on the pins of the protected circuit will not exceed the breakdown voltage of the device.The MASMBJSAC18 is also capable of providing ESD protection even in extreme temperature conditions. It is capable of withstanding temperatures up to 150° C, making it suitable for a wide range of applications.The MASMBJSAC18 is a robust and reliable TVS diode providing excellent ESD protection and low static capacitance. It provides excellent protection against high temperatures, ESD and power line surges.

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