© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 10/13/17
TVS Diodes
Surface Mount > 600W > SZP6SMB Series
• Working Peak Reverse Voltage Range − 5.8 to 171 V
(for Uni-directional), 9.4 to 77.8 V (for Bi-directional)
• Standard Zener Breakdown Voltage Range − 6.8 to 200 V
(for Uni-directional) , 11 to 91 V (for Bi-directional)
• Peak Power − 600 W @ 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
• Pb-free means 2nd level interconnect is Pb-free and the
terminal finish material is tin(Sn)
(IPC/JEDEC J-STD-609A.01)
• SZ Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements;
AEC−Q101 Qualified and PPAP Capable
Features
The SZP6SMB 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 SZP6SMB series is supplied in the Littelfuse
exclusive, cost-effective, highly reliable 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.
Description
Parameter Symbol Value Unit
Peak Power Dissipation (Note 1) @ TL =
25°C, Pulse Width = 1 ms PPK 600 W
DC Power Dissipation @ TL = 75°C
Measured Zero Lead Length (Note 2)
Derate Above 75°C
Thermal Resistance from Junction−to−
Lead
PD
R JL
3.0
40
25
W
mW/°C
°C/W
DC Power Dissipation (Note 3) @ TA =
25°C Derate Above 25°C
Thermal Resistance from Junction–to–
Ambient
PD
R0JA
0.55
4.4
226
W
mW/°C
°C/W
Forward Surge Current (Note 4) @ TA
= 25°C
IFSM 100 A
Operating and Storage Temperature
Range TJ, Tstg
-65 to
+150 °C
Maximum Ratings and Thermal Characteristics
SZP6SMB Series
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If
any of these limits are exceeded, device functionality should not be assumed, damage may
occur and reliability may be affected.
1. 10 X 1000 µs, non−repetitive.
2. 1” square copper pad, FR−4 board.
3. FR−4 board, using Littelfuse minimum recommended footprint, as shown in 403A-03
case outline dimensions spec.
4. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per
minute maximum. For Unidirectonal only.
Additional Information
Samples
Resources
Datasheet