MSMCGLCE33A

Voltage - Clamping (Max) @ Ipp:	53.3V
Supplier Device Package:	SMCG (DO-215AB)
Package / Case:	DO-215AB, SMC Gull Wing
Mounting Type:	Surface Mount
Operating Temperature:	-65°C ~ 150°C (TJ)
Capacitance @ Frequency:	100pF @ 1MHz
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	1500W (1.5kW)
Current - Peak Pulse (10/1000µs):	28.1A
Series:	Military, MIL-PRF-19500
Voltage - Breakdown (Min):	36.7V
Voltage - Reverse Standoff (Typ):	33V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

MSMCGLCE33A is a Bidirectional Transient Voltage Suppressor (TVS) Diode designed for improved protection of sensitive electronics, primarily in automotive applications. MSMCGLCE33A is the most commonly used TVS diode for clamping device in automotive electronic devices. It provides robust transient power dissipation with excellent clamping under both unidirectional and bidirectional transient voltages, such as ESD and lightning, delivering effective surge protection. MSMCGLCE33A is available in a variety of small-signal packages and configurations, such as SOT23, SOT223 and SOT13, etc.

Application Field

MSMCGLCE33A is widely used in automotive systems and other electronic devices to protect integrated circuits and data lines from voltage transients induced by ESD (electrostatic discharge) and other electrical transients. Automotive applications include automotive body control system, engine control system, and infotainment system, such as USB ports, navigation, multimedia, audio, etc. The peak power dissipation and clamping voltage of MSMCGLCE33A is suitable for IC protection with low voltage drop and low capacitance. In addition, because of its wide operating range, MSMCGLCE33A is suitable for both high temperature and low temperature applications.

Working Principle

When the device is subjected to a transient voltage, the electrical field between the PN junction triggers the avalanche breakdown, allowing current to flow in both directions. This clamping action is the main function of the MSMCGLCE33A.When subjected to a voltage transient, the device can also draw current from the circuit, dissipating the excess energy as heat in the device. The device operates in a clamping mode, where the voltage across the device is restricted to a maximum clamping voltage as long as the peak current is less than the specified maximum peak current rating of the device.When the power dissipated by the device exceeds the maximum ratings, the device will remain in its clamping mode until the current through the device falls below its maximum ratings. The device can then recover back to the working mode without entering the break-down mode.

Conclusions

In summary, MSMCGLCE33A is a Bidirectional Transient Voltage Suppressor (TVS) Diode designed for improved protection of sensitive electronics, primarily in automotive applications. The device provides robust transient power dissipation with excellent clamping under both unidirectional and bidirectional transient voltages, such as ESD and lightning, delivering effective surge protection. It is an ideal choice for protecting sensitive electronic components from damage caused by voltage transients.

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