050915
WebSite
Europe
Tel: +49 2302 662-107
Americas
Tel: +1 404 699-7820
Asia
Tel: +852 26 14-1108
China
Tel: +86 21 6432 5146
www.wickmanngroup.com E-mail: sales@wickmann.com
E-mail: service@wickmannusa.com
E-mail: sales@wickmann.com.hk
E-mail: sales@wickmann.cn
Order
Order
Order
Order
Order
Qty.
Qty.
Qty.
Qty.
Qty.
Order-
Order-
Order-
Order-
Order-
T
T
T
T
Type
ype
ype
ype
ype T
T
T
T
Terminal Code Packaging
erminal Code Packaging
erminal Code Packaging
erminal Code Packaging
erminal Code Packaging
Information
Information
Information
Information
Information
Number
Number
Number
Number
Number
WT1812ML140 A
P T
VV
VV
V
ARISTORS
ARISTORS
ARISTORS
ARISTORS
ARISTORS
TVS 1812 SMD
TVS 1812 SMD
TVS 1812 SMD
TVS 1812 SMD
TVS 1812 SMD
Specifications
Specifications
Specifications
Specifications
Specifications
Packaging
Packaging
Packaging
Packaging
Packaging
Tape and Reel
T
7 inch reel (1.000 pcs.)
Material
Material
Material
Material
Material
Body:
Ceramic (ZnO)
Terminals:
Ni/Sn plated (code "P")
Ag/Pt/Pd non plated
(code "N" on request)
Operating T
Operating T
Operating T
Operating T
Operating Temperature
emperature
emperature
emperature
emperature
-55 to +125C
Solderability
Solderability
Solderability
Solderability
Solderability
acc. to IEC 60068-2-58
235C, 2s
Soldering Heat Resistance
Soldering Heat Resistance
Soldering Heat Resistance
Soldering Heat Resistance
Soldering Heat Resistance
260C, 10 sec. (IEC 60068-2-58)
280C, 5 sec. (IEC 60068-2-58)
Response T
Response T
Response T
Response T
Response Time
ime
ime
ime
ime
<0.5ns
TT
TT
Temperature
emperature
emperature
emperature
emperature cccccoefficient (
oefficient (
oefficient (
oefficient (
oefficient (V) of
V) of
V) of
V) of
V) of ccccclamping
lamping
lamping
lamping
lamping
vv
vv
voltage (Vc) @ specified test current
oltage (Vc) @ specified test current
oltage (Vc) @ specified test current
oltage (Vc) @ specified test current
oltage (Vc) @ specified test current
<0.01%/C
Power dissipation
Power dissipation
Power dissipation
Power dissipation
Power dissipation
0.3W max.
Standards
Standards
Standards
Standards
Standards
IEC 61000-4-2
MIL-STD-883C
Multilayer Ceramic T
Multilayer Ceramic T
Multilayer Ceramic T
Multilayer Ceramic T
Multilayer Ceramic Transient
ransient
ransient
ransient
ransient
VV
VV
Voltage Suppressor
oltage Suppressor
oltage Suppressor
oltage Suppressor
oltage Suppressor
Standard Capacity
Standard Capacity
Standard Capacity
Standard Capacity
Standard Capacity
Features
Features
Features
Features
Features
Thin layer, high precise techniques
Lead free
Bi-directional clamping
Standard and low capacity
Available with Nickel/Tin end termination
Applications
Applications
Applications
Applications
Applications
Circuit board and ESD, EFT
Protection of:
I/O ports
Keyboards
LCD`s
Sensors
W
W
W
W
WebLinks
ebLinks
ebLinks
ebLinks
ebLinks
Further infos see:
Further infos see:
Further infos see:
Further infos see:
Further infos see:
www.wickmanngroup.com
Further technical infos see technical
Further technical infos see technical
Further technical infos see technical
Further technical infos see technical
Further technical infos see technical
varistor file:
varistor file:
varistor file:
varistor file:
varistor file:
www.wickmanngroup.com/download/
techvaristor.pdf
Specifications are subject
to change without notice
4.500.35
3.200.30
1.80
0.500.25
typ.
inductance
max. cont.
working
voltage
max.
non-repetitive
surge current
(8/20 s)
Type
max. non-repetitive
surge energy
(10/1000 s)
max. clamping
voltage at spec.
current
(8/20 s)
nominal voltage
at 1mA (DC)
test current
typ.
capacitance
WT1812ML050A
WT1812ML090A
WT1812ML120A
WT1812ML140A
WT1812ML180A
WT1812ML220A
WT1812ML260A
WT1812ML300A
WT1812ML380A
WT1812ML450A
WT1812ML560A
WT1812ML680A
WT1812ML850A
V
M(AC)
(V)
4,0
6,0
9,0
11,0
14,0
17,0
20,0
25,0
30,0
35,0
40,0
50,0
60,0
V
M(DC)
(V)
5,5
9,0
12,0
14,0
18,0
22,0
26,0
30,0
38,0
45,0
56,0
68,0
85,0
I
TM
(A)
500
500
800
800
800
800
800
800
800
800
500
400
400
W
TM
(J)
0,8
1,0
1,8
2,0
2,3
2,5
3,0
3,6
4,2
4,5
4,8
4,5
5,8
V
c
(V@A)
15,5 @ 10
25,0 @ 10
30,0 @ 10
33,0 @ 10
38,0 @ 10
44,0 @ 10
54,0 @ 10
65,0 @ 10
77,0 @ 10
90,0 @ 10
110,0 @ 10
135,0 @ 10
165,0 @ 10
V
N(DC)min.
(V)
7,1
10,0
14,0
16,0
22,0
24,3
29,5
35,0
42,3
50,0
61,2
74,0
91,0
V
N(DC)max.
(V)
9,8
14,5
18,5
21,0
28,0
30,0
38,0
43,0
51,7
61,0
74,0
90,0
115,0
1KHz
C
typ.
(pF)
12900
7100
6500
4410
4000
3670
2670
2320
1960
1370
950
590
530
L
typ.
(nH)
2,5
2,5
2,5
2,5
2,5
2,5
2,5
2,5
2,5
2,5
2,5
2,5
2,5
Maximum Ratings (125C)
Maximum Ratings (125C)
Maximum Ratings (125C)
Maximum Ratings (125C)
Maximum Ratings (125C)
Specifications (25C)
Specifications (25C)
Specifications (25C)
Specifications (25C)
Specifications (25C)
1MHz
C
typ.
(pF)
11200
6070
5260
3940
3500
2990
2320
1890
1680
1150
730
500
450
This product is not recommended
for new designs. Please refer to
Littelfuse series MLA.
Dimensions (mm)
Dimensions (mm)
Dimensions (mm)
Dimensions (mm)
Dimensions (mm)
WebSite
Europe
Tel: +49 2302 662-107
Americas
Tel: +1 404 699-7820
Asia
Tel: +852 26 14-1108
China
Tel: +86 21 6432 5146
www.wickmanngroup.com E-mail: sales@wickmann.com
E-mail: service@wickmannusa.com
E-mail: sales@wickmann.com.hk
E-mail: sales@wickmann.cn
050915
V/I Characteristics
V/I Characteristics
V/I Characteristics
V/I Characteristics
V/I Characteristics
85,0
22,0
26,0
30,0
38,0
45,0
56,0
68,0
5,5
14,0
9,0
12,0
18,0
85,0
22,0
26,0
30,0
38,0
45,0
56,0
68,0
5,5
14,0
9,0
12,0
18,0
WT1812ML850A
WT1812ML680A
WT1812ML560A
WT1812ML450A
WT1812ML380A
WT1812ML300A
WT1812ML260A
WT1812ML220A
WT1812ML180A
WT1812ML140A
WT1812ML120A
WT1812ML090A
WT1812ML050A
Maximum Surge Current: WT1812ML050A - WT1812ML090A, WT1812ML560A
Maximum Surge Current: WT1812ML050A - WT1812ML090A, WT1812ML560A
Maximum Surge Current: WT1812ML050A - WT1812ML090A, WT1812ML560A
Maximum Surge Current: WT1812ML050A - WT1812ML090A, WT1812ML560A
Maximum Surge Current: WT1812ML050A - WT1812ML090A, WT1812ML560A
VV
VV
V
ARISTORS
ARISTORS
ARISTORS
ARISTORS
ARISTORS
TVS 1812 SMD
TVS 1812 SMD
TVS 1812 SMD
TVS 1812 SMD
TVS 1812 SMD
050915
WebSite
Europe
Tel: +49 2302 662-107
Americas
Tel: +1 404 699-7820
Asia
Tel: +852 26 14-1108
China
Tel: +86 21 6432 5146
www.wickmanngroup.com E-mail: sales@wickmann.com
E-mail: service@wickmannusa.com
E-mail: sales@wickmann.com.hk
E-mail: sales@wickmann.cn
Maximum Surge Current: WT1812ML680A - WT1812ML850A
Maximum Surge Current: WT1812ML680A - WT1812ML850A
Maximum Surge Current: WT1812ML680A - WT1812ML850A
Maximum Surge Current: WT1812ML680A - WT1812ML850A
Maximum Surge Current: WT1812ML680A - WT1812ML850A
VV
VV
V
ARISTORS
ARISTORS
ARISTORS
ARISTORS
ARISTORS
TVS 1812 SMD
TVS 1812 SMD
TVS 1812 SMD
TVS 1812 SMD
TVS 1812 SMD
Maximum Surge Current: WT1812ML120A - WT1812ML450A
Maximum Surge Current: WT1812ML120A - WT1812ML450A
Maximum Surge Current: WT1812ML120A - WT1812ML450A
Maximum Surge Current: WT1812ML120A - WT1812ML450A
Maximum Surge Current: WT1812ML120A - WT1812ML450A