SMBJ51A-13

Current - Peak Pulse (10/1000µs):	7.3A
Base Part Number:	SMBJ51
Supplier Device Package:	SMB
Package / Case:	DO-214AA, SMB
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	600W
Series:	SMBJ
Voltage - Clamping (Max) @ Ipp:	82.4V
Voltage - Breakdown (Min):	56.7V
Voltage - Reverse Standoff (Typ):	51V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Discontinued at Digi-Key
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction to the SMBJ51A-13 TVS - Diodes

The SMBJ51A-13 is a Transient Voltage Suppressor (TVS) diode. TVS diodes are electronic devices designed to protect sensitive electronic circuits from the threat of electrical surges. They are used to absorb and dissipate high voltage spikes, such as those caused by lightning and electrostatic discharge (ESD). This diode is capable of protecting circuits against up to a peak pulse voltage of 13.0V.

Application of the SMBJ51A-13 TVS - Diodes

The SMBJ51A-13 is most commonly used for the protection of low voltage, high impedance signal lines. It is well suited for use in systems such as automotive and industrial control equipment, telecommunications terminals, and home appliances. This diode is also ideal for ESD protection in applications such as computers, cable boxes, digital cameras, and cellular phones.

Working Principle of the SMBJ51A-13 TVS - Diodes

TVS diodes operate on the principle of voltage-sensitive, negative-resistance characteristics. Under normal, non-surge conditions, the diode has a very high impedance, allowing the flow of a small current. However, when the voltage across the diode reaches a certain threshold level, the resistance of the diode decreases sharply. This allows the diode to rapidly absorb and dissipate large amounts of energy from the transient voltage spike, thereby providing protection to the connected circuit.

Advantages of the SMBJ51A-13 TVS - Diodes

The SMBJ51A-13 offers high surge capability, fast response time to transient pulses, and low capacitance. The diode is capable of handling up to a 1700W peak power pulse and has a low capacitance of 0.7pF. This gives it an advantage over other diodes, which have greater capacitance values and slower response times. Additionally, the diode features a very low clamping voltage, which reduces the risk of overvoltage damage to the circuit.

Conclusion

The SMBJ51A-13 is a reliable and effective TVS diode, capable of protecting sensitive electronic circuits from transient voltages caused by ESD and lightning. Its fast response time, high surge capability, and low capacitance make it ideal for ESD protection in a wide range of applications.

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