SMDA05C-4-2/TR13

Current - Peak Pulse (10/1000µs):	5A (8/20µs)
Base Part Number:	SMDA05
Supplier Device Package:	8-SO
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	200pF @ 1MHz
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	300W
Series:	TVSarray™
Voltage - Clamping (Max) @ Ipp:	11V
Voltage - Breakdown (Min):	6V
Voltage - Reverse Standoff (Typ):	5V
Bidirectional Channels:	4
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction

TVS-diodes are a type of semiconductor protection device designed for transient voltage surge suppression. SMDA05C-4-2/TR13 is an example of a transient voltage suppressor (TVS) diode that is used to protect systems, components or circuits from potential overvoltage and overcurrent conditions. It features low on-state capacitance, low clamping voltage, high surge capability and fast response time.

Application Field

SMDA05C-4-2/TR13 is mainly used for protecting ESD and EFT. It can also be used to protect against power inductive clashes, static electricity and ESD (electrostatic discharge) surge in power inductance like power supply downlead, LED back plane, high speed I/O and other electronics. The SMDA05C-4-2/TR13 also protects against inrush current, such as occurs during hot plugging of equipment into a power cable.

Working Principle

SMDA05C-4-2/TR13 works by clamping the voltage across the protected circuit. When the voltage reaches a certain level, the diode conducts current and diverts or “clamps” the excess current away from the vulnerable circuitry. It is designed to be activated by the application of an electrical signal at the correct voltage level.When a transient voltage greater than the peak pulse power capability of the diode is applied, the TVS device acts like a short circuit and dissipates the energy as heat. This limits the voltage rise above the clamp voltage, thereby protecting the circuit or device without any permanent damage. The ability of the device to dissipate the excess energy is proportional to its size and cooling surface area, as well as the material used in the junction.

Conclusion

In conclusion, SMDA05C-4-2/TR13 is a TVS-diode that is used for transient voltage surge suppression. Its primary applications are for protecting circuits from ESD and EFT, power inductive clashes and static electricity. It works by activating and clamping the voltage when above a certain level and dissipating any excess energy as heat to prevent damage to the circuit or device.

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