SPD9811B
SPD9811B
1-Line, Bi-directional, Thyristor Surge Suppressors
http//:www.sh-willsemi.com
Descriptions
The SPD9811B is a bi-directional TSS (Thyristor Surge
Suppressors) which can provide ESD protection for IC. It is
specifically designed to protect telecom equipments from
damaging overvoltage transients.
The SPD9811B is used to enable equipments to meet
various regulatory requirements including, ITU-T K.20, K.21
and IEC 61000-4-5
SMB (DO-214AA)
The SPD9811B is available in SMB package. Standard
products are Pb-free and Halogen-free.
Features
Peak off-state voltage: ±320V Max
Excellent capability of absorbing transient surge
Quick response to surge voltage
Eliminate voltage overshoot caused by fast-rising
transients
Low leakage current:
Solid-state silicon technology, non degenerative
Schematic Diagram
Applications
Audio/Video line
Network and telecom
Data lines and security systems
Serial ports
BNC interface
DVR
AA
Y
W
9811B
AAYW
= Device code
= Year code
= Week code
Marking (Top View)
Order information
Device
SPD9811B-2/TR
Package
SMB
Shipping
3000/Tape&Reel
Will Semiconductor Ltd.
1
Revision 1.0, 2013/12/23
SPD9811B
Electrical characteristics
(T
A
=25
o
C, unless otherwise noted)
V
DRM
Part
Number
V
I
DRM
μA
Max.
SPD9811B
Notes:
1)
2)
V
BR
is measured at I
BR
=1mA.
Off-state capacitance is measured at f = 1MHz, V
DC
= 2V.
V
S
V
Max.
400
V
BR
1
V
Min.
330
I
S
mA
I
H
mA
Max.
V
T
V
Max.
4
I
T
A
C
O
2
pF
Typ.
320
1
800
150
2.2
50
Definitions of electrical characteristics
Surge Ratings
Surge Level（IEC61000-4-5）
Part Number
Voltage waveform:10/700us
Current waveform:5/320us
V
SPD9811B
4000
Will Semiconductor Ltd.
2
Revision 1.0, 2013/12/23
SPD9811B
Thermal considerations
Parameter
Operation junction temperature
Storage temperature
Lead temperature
Symbol
T
J
T
STG
T
L
Rating
-40~150
-55~150
260
90
o
Unit
o
o
o
C
C
C
Junction to ambient
thermal resistance
R
θJA
C
/W
Typical characteristics
(T
A
=25
o
C, unless otherwise noted)
Peak pulse current waveform
Normalized holding current vs. Case temperature
Will Semiconductor Ltd.
3
Revision 1.0, 2013/12/23
SPD9811B
Package outline dimensions
SMB
Symbol
A
B
C
D
E
F
G
H
I
Dimensions in millimeter
Min.
4.30
3.30
2.00
5.05
0.10
0.95
2.10
1.85
Typ.
4.50
3.50
2.15
5.30
0.20
1.25
0.20 Max.
2.30
2.00
2.50
2.15
Max.
4.70
3.70
2.30
5.55
0.30
1.55
Recommend land pattern (Unit: mm)
Notes:
This recommended land pattern is for reference
purposes only. Please consult your manufacturing
group to ensure your PCB design guidelines are met.
Will Semiconductor Ltd.
4
Revision 1.0, 2013/12/23
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