Semiconductor Components Industries, LLC, 2001
May, 2001 – Rev. 4
1 Publication Order Number:
1SMB10CAT3/D
1SMB10CAT3 Series
600 Watt Peak Power Zener
Transient Voltage Suppressors
Bidirectional*
The SMB 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 SMB 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.
Specification Features:
• Working Peak Reverse Voltage Range – 10 V to 78 V
• Standard Zener Breakdown Voltage Range – 11.7 V to 91.3 V
• Peak Power – 600 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
• UL 497B for Isolated Loop Circuit Protection
• Response Time is Typically < 1 ns
Mechanical Characteristics:
CASE:
Void-free, transfer-molded, thermosetting plastic
FINISH: All external surfaces are corrosion resistant and leads are
readily solderable
MAXIMUM CASE TEMPERATURE FOR SOLDERING PURPOSES:
260°C for 10 Seconds
LEADS: Modified L–Bend providing more contact area to bond pads
POLARITY: Polarity band will not be indicated
MOUNTING POSITION: Any
MAXIMUM RATINGS
Rating Symbol Value Unit
Peak Power Dissipation (Note 1.)
@ T
L
= 25°C, Pulse Width = 1 ms
P
PK
600 W
DC Power Dissipation @ T
L
= 75°C
Measured Zero Lead Length (Note 2.)
Derate Above 75°C
Thermal Resistance from Junction to Lead
P
D
R
JL
3.0
40
25
W
mW/°C
°C/W
DC Power Dissipation (Note 3.) @ T
A
= 25°C
Derate Above 25°C
Thermal Resistance from Junction
to Ambient
P
D
R
JA
0.55
4.4
226
W
mW/°C
°C/W
Operating and Storage
Temperature Range
T
J
, T
stg
–65 to
+150
°C
1. 10 X 1000 s, non–repetitive
2. 1″ square copper pad, FR–4 board
3. FR–4 board, using ON Semiconductor minimum recommended footprint, as
shown in 403A case outline dimensions spec.
*Please see 1SMB5.0AT3 to 1SMB170AT3 for Unidirectional devices.
PLASTIC SURFACE MOUNT
ZENER OVERVOLTAGE
TRANSIENT SUPPRESSORS
10–78 VOLTS
600 WATT PEAK POWER
Devices listed in
bold, italic
are ON Semiconductor
Preferred devices. Preferred devices are recommended
choices for future use and best overall value.
Device
Package Shipping
ORDERING INFORMATION
1SMBxxCAT3 SMB 2500/Tape & Reel
SMB
CASE 403A
PLASTIC
http://onsemi.com
Y = Year
WW = Work Week
xxC = Specific Device Code
= (See Table Next Page)
YWW
xxC
MARKING DIAGRAM
†The “T3” suffix refers to a 13 inch reel.
