1KSMBJ20C

Voltage - Clamping (Max) @ Ipp:	29.1V
Supplier Device Package:	DO-214AA (SMBJ)
Package / Case:	DO-214AA, SMB
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	Automotive, Telecom
Power Line Protection:	No
Power - Peak Pulse:	1000W (1kW)
Current - Peak Pulse (10/1000µs):	35A
Series:	1KSMBJ
Voltage - Breakdown (Min):	18V
Voltage - Reverse Standoff (Typ):	16.2V
Bidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TVS Diodes--1KSMBJ20C Application Field and Working PrincipleTVS (transient voltage suppressor) diodes are designed to protect equipment from damaging voltage fluctuations caused by electrostatic discharges, short-duration power cross conditions, surges, indirect lightning strikes, and more. 1KSMBJ20C is a type of transient voltage suppressor diode. It has a breakdown voltage of 20V, with a peak pulse current rating up to 1A and a peak pulse power rating up to 2W. It features low clamping voltage of 31V, low leakage current of 1mA, and high surge rating of 10A. This makes the 1KSMBJ20C an ideal solution for portable electronic devices and automotive applications.The working principle of 1KSMBJ20C diode is based on a junction photodiode. When the reverse voltage applied across the diode junction exceeds the junction breakdown voltage, the junction photodiode begins to conduct directly proportional to the reverse voltage. The current passing through the diode is in proportion to the forward voltage applied to the diode. The current is then reduced by the P-N junction capacitance, resulting in a voltage drop across the capacitor. This voltage drop is known as the Clamping Voltage, the voltage reading which the device will protect against.The 1KSMBJ20C is a popular choice for protection against electrostatic discharges (ESD). This diode has a low leakage current and high peak pulse current rating, so it can effectively protect circuitry from ESD events. Additionally, it has a low clamping voltage and a low reverse voltage drop, ensuring that the protected equipment is not damaged by sudden changes in voltage.The 1KSMBJ20C can also be used in automotive applications to protect against electrical transients induced by lightening strikes and power surges. Since the diode has a low clamping voltage and low leakage current, it provides the necessary protection to systems and components in the vehicle.Another application of the 1KSMBJ20C is in the industry of portable electronic devices. It can be used to protect devices such as cell phones, tablets and laptops from voltage fluctuations. By installing a 1KSMBJ20C diode, one can be assured that the device will be safe from power spikes and ESD events.In conclusion, 1KSMBJ20C is a versatile diode designed for protection against voltage transients in a variety of applications, ranging from automotive protection, to portable electronic protection, to ESD protection. Its low clamping voltage and low leakage current make it an ideal choice for these situations.

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