Introduction to the 8V Zener Diode
The 8V Zener diode is a voltage-regulating diode with a nominal reverse breakdown voltage of 8V. As a common specification of Zener diode, it realizes voltage regulation function based on the Zener breakdown principle, and is a widely used semiconductor device in electronic circuits.
Working Principle of an 8V Zener Diode
Its core operating principle is as follows: when in forward conduction, its electrical characteristics are consistent with those of ordinary diodes; when the applied reverse voltage reaches the nominal 8V Zener breakdown voltage, the reverse current can fluctuate within a wide range while the voltage across the device remains basically stable at approximately 8V, so as to realize voltage regulation for the circuit. Compared with low-voltage Zener diodes, the 8V specification lies exactly in the co-action region of Zener breakdown and avalanche breakdown, with a temperature coefficient close to zero and better working stability. When operating at room temperature, the breakdown voltage is barely affected by temperature changes, delivering higher voltage regulation accuracy.
8V Zener Diode Performance Parameters
In terms of performance parameters, apart from the core nominal 8V regulation voltage, this type of Zener diode is usually provided with a variety of optional rated power, and common specifications include 0.25W, 0.5W, 1W and 2W. Different power ratings correspond to different maximum allowable reverse operating currents, making it adaptable to circuits with different load requirements: low-power specifications are mostly used in low-current voltage regulation scenarios, such as instrument reference voltage circuits and port voltage regulation protection for consumer electronics; high-power 8V Zener diodes can be applied to power output voltage regulation and voltage clamping scenarios for high-power loads. Regarding voltage regulation accuracy, the stabilization voltage deviation of conventional products is generally within ±5%, while that of high-precision specifications can be controlled within ±1% and ±2%, which can meet the circuit design requirements of different accuracy levels.
Specific part numbers for 8V Zener diodes
The BZX84WCx is a series of Zener diodes in an SC-70 package. These diodes are available with Zener voltages ranging from 5.6V to 39V.
8V Zener diode specifications
|
Vz (nom) (V) |
15 |
|
Package name |
SC70-3 |
|
Pd (max) (W) |
0.36 |
|
IO leakage current (max) (nA) |
500 |
|
IO capacitance (typ) (pF) |
68 |
|
Tolerance (±) (%) |
5 |
|
Rating |
Catalog |
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