BZD27C22P-M3-18

Series:	Automotive, AEC-Q101, BZD27C-M
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	22V
Tolerance:	--
Power - Max:	800mW
Impedance (Max) (Zzt):	15 Ohms
Current - Reverse Leakage @ Vr:	1µA @ 16V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 200mA
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Surface Mount
Package / Case:	DO-219AB
Supplier Device Package:	DO-219AB (SMF)

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The BZD27C22P-M3-18 is part of a Zener diode, a device popularly used for voltage regulation and voltage regulation circuits. Zener diode has the feature of allowing current to flow in either direction and has low biasing requirements. Hence, it is mostly preferred over other types of diodes for regulating voltage within certain levels and providing a steady power source.
BZD27C22P-M3-18, a single Zener diode, is specifically used as DC (direct current) regulator for medium power applications in high temperature environments. This particular diode has high current, up to 200mA, low voltage drop and medium power to provide stable regulated power when connected in series with other components like resistors, switchgear and capacitors. The device is popularly used in automotive, industrial and telecommunications industry.
The device is composed of a single PN junction. In PN junction, holes and electrons combine and recombine depending on the presence and absence of electric field. When the electric force is absent, the holes are neutralised and the electrons move to the N-type side, creating a potential barrier. With the presence of electric force, electrons and holes start passing is opposite directions, creating potential variations and thus, creating current.
For Zener diode, the need for electric field is there during breakdown, allowing the electrons to flow across. This results in the creation of an avalanche effect and breakdown voltage is reached, allowing the flow of current in the reverse direction. The size of reverse current increases with reverse voltage. The Zener diode is designed in such a way that the voltage does not drop during the breakdown.
The BZD27C22P-M3-18 is known for its high stability and low noise profile, alongside its capability to sustain higher power levels in diverse conditions. It has a maximum power dissipation of 500mW. It has a reverse breakdown voltage of 18V and a reverse current of 5mA at the rated voltage of 18V. This diode can detect a limited voltage across its terminals, making it an ideal choice for the above mentioned applications.
In summary, BZD27C22P-M3-18 is a single Zener diode, designed to operate with high current and low voltage drop, in a medium power operation. It has a reverse breakdown voltage of 18V and a reverse current of 5mA at the rated voltage of 18V. It is capable of withstanding high temperatures and is popularly used in industries such as automotive, industrial and telecommunications.

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