SMA6L17A

Voltage - Clamping (Max) @ Ipp:	27.6V
Supplier Device Package:	DO-221AC
Package / Case:	DO-221AC, SMA Flat Leads
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	600W
Current - Peak Pulse (10/1000µs):	21.8A
Series:	SMA6L
Voltage - Breakdown (Min):	18.9V
Voltage - Reverse Standoff (Typ):	17V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

SMA6L17A Application Field and Working PrincipleIntroductionSMA6L17A is a TVS diode manufactured by Vishay Electronics. It is a Transient Voltage Suppressor which is designed with a reverse break voltage of 6.2V and a peak pulse power of 500W. The rated peak pulse surge current of SMA6L17A is 17A. It has a low clampsing voltage of 11V, which makes it an ideal diode for protecting various types of sensitive components in applications and circuits from extreme voltage surges.ApplicationSMA6L17A is mainly used in Electronic Circuit Protection and Telecommunications Systems. In Electronic Circuit Protection, it can be used for protecting AC (Alternating Current) and DC (Direct Current) lines of electronic control units from over voltage. Due to its low clamping voltage and high breakdown voltage, it can also be used in automobile applications and data lines where high creepage distances between positive and negative terminals are required. In Telecommunications Systems, it can be used for protecting input components from over-voltage surges caused by lightning or intense electromagnetic interference.Working PrincipleThe structure of SMA6L17A is based upon its design specifications of 6.2V reverse break voltage and 17A peak pulse surge power. It consists of two transistors NPN and PNP connected in opposite directions. When the external voltage exceeds the safe threshold, the PNP transistor is triggered first and saturates. This further triggers the NPN transistor, which in turn starts conducting large amount of current. This current flow offers protection against the over-voltage surges and protects the connected components from damage. The clampsing voltage of SMA6L17A determines the amount of protection provided by the PNP and NPN transistors.ConclusionIn conclusion, SMA6L17A is an ideal TVS diode for protecting electronic circuit from extreme voltage surges in both ac and dc lines. Its low clamping voltage and high breakdown voltage make it suitable for use in various applications. It provides additional protection by triggering the PNP and NPN transistors which provide protection against over-voltage surges.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description