1.5SMC6.8AT3 Series
1500 Watt Peak Power Zener
Transient Voltage Suppressors
Unidirectional*
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
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.
http://onsemi.com
PLASTIC SURFACE MOUNT
ZENER OVERVOLTAGE
TRANSIENT SUPPRESSORS
5.8–78 VOLTS
1500 WATT PEAK POWER
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 Watts @ 1 ms
• ESD Rating of Class 3 (>16 KV) per Human Body Model
• Maximum Clamp Voltage @ Peak Pulse Current
• Low Leakage < 5 µA Above 10 V
Cathode
Anode
• UL 497B for Isolated Loop Circuit Protection
• Maximum Temperature Coefficient Specified
• Response Time is Typically < 1 ns
SMC
CASE 403
PLASTIC
Mechanical Characteristics:
CASE: Void-free, transfer-molded, thermosetting plastic
FINISH: All external surfaces are corrosion resistant and leads are
readily solderable
MARKING DIAGRAM
MAXIMUM CASE TEMPERATURE FOR SOLDERING PURPOSES:
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
YWW
xxxA
Y
WW
= Year
= Work Week
MAXIMUM RATINGS
xxxA
= Specific Device Code
= (See Table Next Page)
Rating
Symbol
Value
Unit
Peak Power Dissipation (Note 1.)
P
PK
1500
W
@ T = 25°C, Pulse Width = 1 ms
L
ORDERING INFORMATION
DC Power Dissipation @ T = 75°C
P
4.0
W
L
D
{
Device
Package
Shipping
2500/Tape & Reel
Measured Zero Lead Length (Note 2.)
Derate Above 75°C
Thermal Resistance from Junction to Lead
54.6
18.3
mW/°C
°C/W
1.5SMCxxxAT3
SMC
R
q
JL
DC Power Dissipation (Note 3.) @ T = 25°C
P
D
0.75
W
A
Derate Above 25°C
Thermal Resistance from Junction
to Ambient
Devices listed in bold, italic are ON Semiconductor
Preferred devices. Preferred devices are recommended
choices for future use and best overall value.
6.1
165
mW/°C
°C/W
R
q
JA
Operating and Storage
Temperature Range
T , T
–65 to
+150
°C
J
stg
*Bidirectional devices will not be available in this
series.
1. 10 X 1000 ms, non–repetitive
2. 1″ square copper pad, FR–4 board
†The “T3” suffix refers to a 13 inch reel.
3. FR–4 board, using ON Semiconductor minimum recommended footprint, as
shown in 403B case outline dimensions spec.
Semiconductor Components Industries, LLC, 2001
1
Publication Order Number:
March, 2001 – Rev. 3
1.5SMC6.8AT3/D