Thyristor Data Book: TRIACs, SCRs, Surge Suppressors, and Triggers

ABOUT THIS REVISION 7 . . .
What can quickly identify engineers as Thyristor knowledgeable is them knowing the “K” lead designator on
the case outlines and packages identifies the cathode on SCRs. In this revision 7 of the Thyristor data book, a lot
has changed.

ON Semiconductor
ON Semiconductor is one of the world’s largest suppliers of analog, standard logic, and discrete
semiconductors for data and power management, with shipments of approximately 19 billion units and net
product revenue of over US $1.6 billion (pro forma) in 1999. ON Semiconductor’s products include integrated
circuits for high–bandwidth data applications, analog ICs for power management and low–voltage power
transistors. In addition to using micropackaging technology across all product families, ON Semiconductor
offers the largest selection of discrete semiconductors in a variety of surface mount and standard packages. These
semiconductors turn on and connect digital electronic products to our world. ON Semiconductor is the
tradename of SCG Holding Corporation. Altogether we have over 30 years experience in manufacturing

Thyristors.
Updated Data Book
Although some very successful older data sheets have been around in previous revisions of the Thyristor data
book, all have been revised if only to make minor corrections and format changes. Over two dozen new data
sheets have been added to the revision 7 data book that were not in the previous edition. In particular we are
proud of our series of high performance, new generation thyristors. We now have a larger selection of device
types with high noise immunity and also a larger number of sensitive gate triacs and SCR’s. In addition, there is
the new line of MMT surge protection series for telecom systems. Finally, a total of six new application notes
were added to this book. To find a complete list of the new material in the revision 7 data book please see the
page title “What’s Different in the Rev. 7 Data Book’’ near the front of this book.

Safety Regulatory Approval
For the first time in the Thyristor data book we included the UL safety regulatory registration file number on
the data sheets. UL approval registrations include the fullpack package for isolation, along with the UL approvals
for both SIDACs and our new line of Thyristor Surge Protective Devices (TSPD), the two MMT series that is
now included in the revision 7 Thyristor data book.