SM03E3/TR7

Voltage - Clamping (Max) @ Ipp:	7V
Base Part Number:	SM03
Supplier Device Package:	SOT-23
Package / Case:	TO-236-3, SC-59, SOT-23-3
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	600pF @ 1MHz, 300pF @ 1MHz
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	300W
Current - Peak Pulse (10/1000µs):	5A (8/20µs)
Series:	--
Voltage - Breakdown (Min):	4V
Voltage - Reverse Standoff (Typ):	3.3V
Bidirectional Channels:	1
Unidirectional Channels:	2
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction

TVS (Transient Voltage Suppressor) diodes are important components used in protecting electronic circuity from noise, spikes, and other transients that might damage or destroy it. The SM03E3/TR7 is a diode that falls under the TVS diode family and provides a simple and efficient solution to many of these issues.

Application Field

The SM03E3/TR7 is designed primarily for single-ended transients protection, protecting circuits from spikes and shifts in the operating voltage. It is most commonly used in automotive applications, where noise that generated by other components in the vehicle can wreak havoc on the electrical system. The SM03E3/TR7 can also be used in industrial and medical applications, where stability and reliability are paramount.The SM03E3/TR7 is designed to work in a range of possible voltages, from 6 to 24 volts. It can also work in both AC and DC situations, making it a great all-around choice for many applications.

Working Principle

The SM03E3/TR7 is a type of straddle-mount TVS diode, which means that it is mounted between two leads in order to be fully functional. This arrangement allows the diode to be more efficient in its protections, as it is best suited for electrical systems that are prone to high transient voltages.The diode itself is made up of two components - anode and cathode. When an electric current passes through the diode, it knows whether it should pass or be blocked, depending on the direction of the current. If there is a surge of voltage or a voltage spike, however, the diode will “break” and start conducting, preventing any further damage to the system. This is the transient protection that the diode provides.

Conclusion

The SM03E3/TR7 is a great choice for many pulse and transient voltage protection applications. It provides reliable performance in multiple working voltages and can handle both AC and DC currents. Its efficient design and simple mounting process make it a great all-around solution for many applications that require protection from high transient voltages.

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