TVS Diodes Datasheet
© 2023 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: GD. 07/17/23
1
SZP6SMB Series
Surface Mount > 600W
■ Zener Transient Overvoltage
Suppressors
■ Working Peak Reverse
Voltage Range − 5.8 to 171
V (for Uni-directional), 9.4 to
77.8 V (for Bi-directional)
■ Standard Breakdown Voltage
Range − 6.45 to 210V for Uni-
directional , 10.5 to 95.5 V for
Bi-directional
■ Peak Power − 600 W @ 1 ms
■ ESD protection of data lines
in accordance with IEC
61000-4-2 30kV(Air), 30kV
(Contact)
■ ESD Rating of Class 3 (> 16
kV) per Human Body Model
■ Maximum Clamp Voltage @
Peak Pulse Current
■ V
BR
@T
J
= V
BR
@25°C x (1+αT
x (T
J
- 25))(αT: Temperature
Coefficient)
■ Low Leakage < 5 µA Above
10 V
■ 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 & Benefits
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 breakdown
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)
@ 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
ƟJL
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
ƟJA
0.55
4.4
100
W
mW/°C
°C/W
Forward Surge Current (Note 4)
@ T
A
= 25°C
I
FSM
100 A
Operating and Storage Temperature
Range
T
J,
T
stg
-65 to
+175
°C
Maximum Ratings and Thermal Characteristics
Stresses exceeding those listed in the Maximum Ratings table may damage the component. If any of these limits
are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected.
1. 10/1000 µs, non−repetitive.
2. 1” square copper pad, FR−4 board.
3. FR−4 board, using Littelfuse minimum recommended footprint
4. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute maximum.
For Unidirectonal only.
Bi-directional
Uni-directional
Agency Approvals
Agency Agency File/Certificate Number
E128662
RoHS
Pb
e3
Resources Accessories Samples
Additional Information
Functional Diagram
Bi-directional
Uni-directional
Cathode
Anode
TVS Diodes Datasheet
© 2023 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: GD. 07/17/23
2
SZP6SMB Series
Surface Mount > 600W
I-V Curve Characteristics (T
A
= 25°C unless otherwise noted, VF = 3.5 V Max. @ IF (Note 5) =
30 A) For Uni-directional
Symbol Parameter
I
PP
Maximum Reverse Peak Pulse Current
V
C
Clamping Voltage @ I
PP
V
RWM
Working Peak Reverse Voltage
I
R
Maximum Reverse Leakage Current @ V
RWM
V
BR
Breakdown Voltage @ I
T
I
T
Test Current
I-V Curve Characteristics (T
A
= 25°C unless otherwise noted) – For Bi-directional
V
c
V
BR
V
R
I
R
I
T
I
PP
V
V
C
V
BR
V
R
I
PP
I
R
I
T
Bi-Directional
Symbol Parameter
I
PP
Maximum Reverse Peak Pulse Current
V
C
Clamping Voltage @ I
PP
V
RWM
Working Peak Reverse Voltage
I
R
Maximum Reverse Leakage Current @ V
RWM
V
BR
Breakdown Voltage @ I
T
I
T
On-State Current
V
F
Forward Voltage @ I
F
I
F
Forward Current
5. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, non−repetitive duty cycle.
V
c
V
BR
V
R
I
R
I
T
I
PP
V
Uni-directional
V
F