1SMB5941BT3G Discrete Semiconductor Products

Diodes - Zener - Single

1SMB5941BT3G is an unidirectional, single Zener diode and also known as voltage regulator diode which is designed to regulate precision voltage level. It looks like a regular diode but it is designed to regulate the voltage up to a specific level. When the input voltage exceeds the breakdown voltage, the Zener diode is triggered to conduct and regulate the voltage drop across it to the breakdown voltage.

Application

1SMB5941BT3G is ideally used in voltage regulator circuits and it is very effective for use in areas such as in portable equipment circuits or in the power supply circuits. It has the capability to covert the input voltage to a precise value, while providing the required current level. It is also used in audio, video and higher frequency circuits, as well as in communications.

Working Principle

When a Zener diode is connected in the circuit, the flow of electrons through it is also known as Zener current without the presence of a reverse voltage. When the applied voltage across the diode is high enough, the current through the diode increases up to a specific point, what is normally termed as ‘Zener knee’. After this point, the current rises rapidly, and it is known as ‘Zener avalanche’. This is the phenomena initiated voltage breakdown, and the Zener diode is conducting.

When Zener diode is conducting and forward biased, it can regulate the voltage level with very low noise. This is only possible due to the abrupt change in the current-voltage characteristics of the diode, where the diodes current remains constant almost same value once the breakdown voltage is achieved. Hence, the diode can make sure of regulated voltage up to its maximum breakdown voltage.

Conclusion

1SMB5941BT3G is an efficient voltage regulator diode built with the proprietary planar technology. It is designed to offer a very precise regulator output voltage despite its capacity to cope up with high temperature and humidity fluctuations. With its robust construction, low cost and capability to provide low power consumption, 1SMB5941BT3G is an ideal choice for portable equipment and power supply applications.