Package Includes: 1 piece Zener Diode 4.7V
 
Bullet points:
250 mW Rating 
Zener Breakdown Voltage: 4.7Volt
used as a voltage regulator
used as a voltage reference 
used as a voltage clamper 
 
Other Description:
Specifications:
250 mW Rating 
Zener Breakdown Voltage: 4.7Volt
Zener diodes are normal PN junction diodes operating in a reverse biased condition. Working of the Zener diode is similar to a PN junction diode in forward biased condition, but the uniqueness lies in the fact that it can also conduct when it is connected in reverse bias above its threshold / breakdown voltage. These are among the basic types of diodes used frequently, apart from the normal diodes.