SIDACtor® Protection Thyristors Datasheet
SEPXXXXQ38 Series
Ethernet/PoE Protection SIDACtor® - 5x6 QFN
Pb e3
RoHS
Description
SEPxxxxQ38 series has a surge rating compatible with GR1089
inter-building and ITU K.20/21 Enhanced protection requirements.
Targeted for high-speed applications such as 10BaseT, 100BaseT,
and 1000BaseT, SEPxxxxQ38 series maintains signal quality while
providing robust protection for Ethernet and PoE applications. This
latest silicon design innovation results in a capacitive loading
characteristic that is constant with respect to the voltage across
the component. This reduces distortion caused by typical solid-
state protection solutions. Offered in a surface-mount, QFN
package, the SEPxxxxQ38 provides small package size without
sacrificing power and surge handling capabilities.
Features & Benefits
■ Compatible with 1000Base-T
■ RoHS Compliant and
Halogen-Free
■ Balanced overvoltage
protection
Additional Information
■ Pb-free E3 means 2nd level
interconnect is Pb-free and
the terminal finish material is
tin(Sn) (IPC/JEDEC J-STD-
609A.01)
■ Low distortion
■ Low insertion loss
■ Low profile
■ SO-8 footprint compatible
■ Fails short circuit when surged
in excess of ratings
Resources
Accessories
Samples
Pinout Designation
Applicable Global Standards
Line in
- Bias
1
2
8
7
Line out
■ TIA-968-A
■ GR 1089 Intra-building
+ Bias
Ground
■ TIA-968-B
■ YD/T 1082
■ YD/T 993
■ YD/T 950
6
5
3
4
Ground
Line in
■ ITU K.20/21 Enhanced Level
■ ITU K.20/21 Basic Level
■ IEC 61000-4-5 2nd edition
■ GR 1089 Inter-building
Line out
■ Class 4/5 compliance of IEC
61000--4-5
Schematic Symbol
Line In (1)
(8) Line Out
Agency Approvals
-Bias (2)
(7) +Bias
Agency
Agency File Number
Ground (3)
Line In (4)
(6) Ground
(5) Line Out
E133083
i
l
P
h
a
v
e
n
s
O
c
t
2
0
8
Electrical Characteristics
VDRM@IDRM=5µA VS@100V/µs
IH
mA min
50
IS
mA max
800
IT@VT
A max
2.2
VT@IT= 2.2Amps
Capacitance
V max
Part Number
Marking
V min
6
V max
25
SEP0080Q38CB
SEP0640Q38CB
SEP0720Q38CB
SEP0900Q38CB
SEP0080Q38BB
SEP0640Q38BB
SEP0720Q38BB
SEP0900Q38BB
SEP-8C
SEP06C
SEP07C
SEP09C
SEP-8B
SEP06B
SEP07B
SEP09B
8
8
8
58
65
75
6
77
150
150
150
50
800
2.2
88
800
2.2
See Capacitance
vs. Bias Voltage
98
800
2.2
8
25
800
2.2
8
Graph
58
65
75
77
150
150
150
800
2.2
8
8
8
88
800
2.2
98
800
2.2
Notes: - Absolute maximum ratings measured at TA= 25ºC (unless otherwise noted).
- Components are bidirectional (unless otherwise noted).
© 2022 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: JC. 06/13/22
1