Page 15 - Complete Wireless Design
P. 15
Wireless Essentials
14 Chapter One
Figure 1.14 Three major diode
packages: the small signal,
power, and bridge rectifier
types.
Figure 1.15 The zener diode.
Figure 1.16 The characteristic curves of a zener diode.
available for the zener diode, such as 20, 10, 5, and 1 percent. Also, in some
critical circuits, it must be considered that a zener’s voltage ratings change
with temperature. More temperature stable zeners are available, such as
voltage reference diodes and temperature-compensated zener diodes.
The following are a few of the more important zener diode specifications:
I , the maximum zener current before the diode is destroyed
ZM
V , the reverse voltage across the zener, which changes very little with an
Z
increase in current
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