DZ23C20-E3-18

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Configuration:	1 Pair Common Cathode
Voltage - Zener (Nom) (Vz):	20V
Tolerance:	±5%
Power - Max:	300mW
Impedance (Max) (Zzt):	50 Ohms
Current - Reverse Leakage @ Vr:	100nA @ 15V
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23

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Introduction

DZ23C20-E3-18 is a Zener array featuring 18 diodes in a single package. It is designed as a 16-pin DIP package. It is designed to provide over-voltage protection from transients and spikes from external sources. Its operating temperature ranges from –55°C to +150°C and its power dissipation capability is 4.2Watts. The breakdown voltage is between 5.1V to 24V when the ambient temperature is 25°C.

Application Field

DZ23C20-E3-18 is suitable for many types of application fields. It can be used for isolated AC/DC power supplies, switching power supplies, circuit boards, computers, modems and other communication equipment. It is also suitable for automotive and industrial applications. It provides an ideal protection solution against transient voltage surges. It works as an ESD (Electrostatic Discharge) protection, preventing harmful currents from entering into connected circuits. It also provides protection against over-voltage from DC sources or from AC line surges. It is suitable for high-power applications. It is highly reliable and has a low power dissipation characteristic.

Working Principle

The working principle of DZ23C20-E3-18 is based on Zener diode technology. Here, a diode is used to regulate the voltage level by introducing a fixed forward voltage drop to the current flow. When a reverse voltage is applied across the diode, it conducts, providing current conduction to the source. The reverse breakdown voltage is determined by the Zener diode characteristics. This is known as the Zener effect, which is why it is known as a Zener diode. The Zener diode array, when subjected to a reverse bias, will conduct current at a much higher breakdown voltage.

The DZ23C20-E3-18 is made up of 18 diodes connected in series forming what is known as a Zener diode array. This array provides a much higher and more reliable reverse breakdown voltage than a single Zener diode. The current flow is regulated to a fixed voltage level by controlling the current conduction of the diodes. The resultant voltage is the sum of the control voltage of each diode in the chain. The diode array is designed to be heat and current tolerant, so that it can be used in high-power applications without any risk of overheating. It is also resistant to ESD and transients, making it suitable for various types of applications.

Conclusion

DZ23C20-E3-18 is a Zener diode array designed for high-power applications. It provides a reliable protection against transients and spikes from external sources. It is suitable for a wide range of applications, from AC/DC power supplies, switching power supplies, circuit boards, computers, and automotive and industrial applications. The diode array is heat and current tolerant, while also being resistant to ESD and transients. It is highly reliable and has a low power dissipation characteristic.

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