1.5SMC6.8AT3G Series,
SZ1.5SMC6.8AT3G Series
1500 Watt Peak Power
Zener Transient Voltage
Suppressors
http://onsemi.com
Unidirectional*
SURFACE MOUNT
ZENER OVERVOLTAGE
TRANSIENT SUPPRESSORS
5.8 − 78 VOLTS
The SMC series is designed to protect voltage sensitive
components from high voltage, high energy transients. They have
excellent clamping capability, high surge capability, low zener
impedance and fast response time. The SMC series is supplied in
ON Semiconductor’s exclusive, cost-effective, highly reliable
1500 WATT PEAK POWER
®
SURMETIC package and is ideally suited for use in
communication systems, automotive, numerical controls, process
controls, medical equipment, business machines, power supplies and
many other industrial/consumer applications.
SMC
CASE 403
Specification Features
• Working Peak Reverse Voltage Range − 5.8 to 77.8 V
• Standard Zener Breakdown Voltage Range − 6.8 to 91 V
• Peak Power − 1500 W @ 1.0 ms
Cathode
Anode
• ESD Rating of Class 3 (> 16 kV) per Human Body Model
• Maximum Clamp Voltage @ Peak Pulse Current
• Low Leakage < 5.0 mA Above 10 V
• UL 497B for Isolated Loop Circuit Protection
• Maximum Temperature Coefficient Specified
• Response Time is Typically < 1.0 ns
• SZ Prefix for Automotive and Other Applications Requiring Unique
Site and Control Change Requirements; AEC−Q101 Qualified and
PPAP Capable
• These are Pb−Free Devices are Available**
MARKING DIAGRAM
AYWW
xxxAG
G
xxxA = Specific Device Code
(See Table on Page 3)
= Assembly Location
= Year
WW = Work Week
A
Y
G
= Pb−Free Package
(Note: Microdot may be in either location)
Mechanical Characteristics
CASE: Void-free, transfer-molded, thermosetting plastic
FINISH: All external surfaces are corrosion resistant and leads are
readily solderable
ORDERING INFORMATION
†
Device***
Package
Shipping
MAXIMUM CASE TEMPERATURE FOR SOLDERING PURPOSES:
1.5SMCxxxAT3G
SMC
(Pb−Free)
2,500 /
Tape & Reel
260°C for 10 Seconds
LEADS: Modified L−Bend providing more contact area to bond pads
POLARITY: Cathode indicated by molded polarity notch
MOUNTING POSITION: Any
SZ1.5SMCxxxAT3G
SMC
(Pb−Free)
2,500 /
Tape & Reel
***The “T3” suffix refers to a 13 inch reel.
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
**Bidirectional devices will not be available in this series.
**For additional information on our Pb−Free strategy and soldering details,
please download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
Individual devices are listed on page 3 of this data sheet.
© Semiconductor Components Industries, LLC, 2014
1
Publication Order Number:
February, 2014 − Rev. 11
1.5SMC6.8AT3/D