SMBJ26A R5G Circuit Protection

Moisture Sensitivity Level (MSL):	--
Type:	Zener
Unidirectional Channels:	1
Voltage - Reverse Standoff (Typ):	26V
Voltage - Breakdown (Min):	28.9V
Voltage - Clamping (Max) @ Ipp:	42.1V
Current - Peak Pulse (10/1000µs):	14.9A
Power - Peak Pulse:	600W
Power Line Protection:	No
Applications:	General Purpose
Capacitance @ Frequency:	--
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	DO-214AA, SMB
Supplier Device Package:	DO-214AA (SMB)
Series:	SMBJ
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active

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Introduction to SMBJ26A R5G TVS Diodes

The SMBJ26A R5G is a TVS (Transient Voltage Suppressor) diode designed to protect sensitive electronics from transient voltage events. It is designed as an alternative to traditional diode solutions to reduce size and increase reliability for high-frequency switching applications. It is available in an axial-lead epoxy-coated package with a molded-in bridge rectifier for increased protection.

Application Field

The SMBJ26A R5G TVS diode is widely used in power systems, communication systems, automotive electronics, and consumer electronics to protect against damaging transient voltage events. It is utilized in a wide range of products including computers, cell phones, automobiles, soldering equipment, industrial machines, UPS systems, and power supplies.Applications for the SMBJ26A R5G TVS diode include:

• Overvoltage protection in automotive electronics, power supplies, and other electronic systems.
• Provide power surge protection and latchup prevention in high-speed switching circuits.
• Protect sensitive electronic components from transient voltage events.
• Protect circuit boards from electrostatic discharge.

Working Principle

The SMBJ26A R5G TVS diode works by quickly and safely absorbing transient voltages as they occur. When a transient voltage event occurs, the diode quickly shorts the voltage, instantly reducing its peak magnitude and protecting sensitive components from damage. The diode has a breakdown voltage of 5V and a clamping voltage of 11V. When the voltage exceeds 5V, it is blocked and ceases to function. When the voltage exceeds 11V, the diode begins to conduct, and current starts to flow. The diode\'s bridge rectifier configuration allows it to continue to conduct current even when the voltage returns to normal. The bridge rectifier helps to reduce the amount of noise and ringing produced by the diode during the transient voltage event.

Conclusion

The SMBJ26A R5G TVS diode is a versatile and reliable protection solution for sensitive electronic components exposed to transient voltage events. In addition to providing overvoltage protection, it also helps prevent latchup in high-frequency switching circuits. The bridge rectifier configuration further reduces noise and ringing to ensure reliable performance.

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