SMCJ33CA-13-F Circuit Protection

Current - Peak Pulse (10/1000µs):	28.1A
Base Part Number:	SMCJ33
Supplier Device Package:	SMC
Package / Case:	DO-214AB, SMC
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	1500W (1.5kW)
Series:	--
Voltage - Clamping (Max) @ Ipp:	53.3V
Voltage - Breakdown (Min):	36.7V
Voltage - Reverse Standoff (Typ):	33V
Bidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction

The SMCJ33CA-13-F is a type of TVS diode, a form of Transient Voltage Suppressor (TVS), designed to protect electrical and electronic components from voltage spikes. Transient voltage suppressors are widely used in power supplies and power grids, appliances, and consumer electronics, particularly to protect from power surges. The SMCJ33CA-13-F is an unidirectional form of the device, commonly referred to as a Transient Voltage Suppressor Diode (TVSD).

Application Field

The SMCJ33CA-13-F is often used in industries across the world to protect against potentially damaging voltage surges and transients. It is used in communication systems such as cellular networks and telecommunications systems, mobile terminals, radio stations and receivers, as well as automotive, consumer electronics, and computer and other general electrical and electronic systems. Its features include high reliability, fast response time, low clamping voltage, and a wide operating temperature range. The SMCJ33CA-13-F can also be used in other protection applications, such as suppressing voltage transients in power systems and SNMP-connected devices, protecting RF and coaxial cables, and voltage limiting in RF transmission. It has also been used as a filter diode, rectifier and power supply lines.

Working Principle

The working principle of the SMCJ33CA-13-F is relatively simple. It acts as a clamping device that protects circuits from damaging voltage spikes and transients. It works by clamping the source voltage below the breakdown value. This ensures that no excessive voltage is allowed to pass through the circuit, preventing the possibility of damage to the device.The diode can be triggered by a variety of different events, such as power up or down, lightning strikes, electromagnetic interference, or a power surge. When triggered, the diode will rapidly switch to its conductive state, clamping the voltage to a predetermined value and protecting the circuit. When the transient voltage is no longer present, the diode will then switch back to its non-conductive state.The SMCJ33CA-13-F has an operating voltage rating of 13V and a maximum power dissipation of 500mW. It is designed to operate over a wide temperature range, with a surge current value of 187A and an operating temperature range of -55˚C to 150˚C.

Conclusion

The SMCJ33CA-13-F is a type of transient voltage Suppressor (TVSD) designed to protect electrical and electronic components from voltage spikes. It is widely used in communication systems, mobile terminals, automotive, consumer electronics, computer and other general electrical and electronic systems. Its working principle is relatively simple; it works by clamping the source voltage below the breakdown value, and when triggered, will rapidly switch to its conductive state to prevent excessive voltage from passing through the circuit. The SMCJ33CA-13-F has an operating voltage rating of 13V and a maximum power dissipation of 500mW, and is designed to operate over a wide temperature range.

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