Metal Oxide Varistors
RL1812A Series
Features
l EIA size:1812
l Variable capacitance
l Operating voltage: 18Vdc ~385Vdc
l High surge suppress capability
l Bidirectional and symmetrical V/I characteristics
l Multilayer ceramic construction technology
l RoHS & Halogen Free (HF) compliant
l Operating temperature range: -40℃ ~ +85℃
l Storage temperature range: -40℃ ~ +125℃
Applications
l Used to Help Achieve Electromagnetic Compliance of End Products
l Provides On-Board Transient Voltage Protection for ICs, CMOS and MOSFET
l Suppression of Inductive Switching or Other Transient Events Such as EFT and Surge Voltage at the Circuit Board.
l Protection of Components and Circuits Sensitive to ESD Transients Occurring on Power supplies, Control and Signal
Lines.
Part Number Code
R
L
LOGO
1
8
1
Packaging
2
A
Standard
1812
Specifications are subject to change without notice.
Please refer to http://www.ruilon.com.cn for current information.
Revised: 2018-12-05
2
4
0
K
Varistor Voltage
Tolerance
24V
K:±10%
Page:1
Metal Oxide Varistors
RL1812A Series
Electrical Characteristics
Varistor
Voltage
Type Number
V1mA(V)
Max.
Energy
(10/1000μs)
Max. Allowable
Voltage
VAC(V)
VDC(V)
(J)
Max. Clamping
Voltage
(8/20μs)
IP(A)
Withstanding
Surge Current
(8/20μs)
VC(V)
I(A)
RL1812A240K
21.6~27
14
18
1.5
10
59
500
RL1812A270K
26.4~33
17
22
1.5
10
72
800
RL1812A300K
28.8~36
18
24
1.5
10
79
800
RL1812A330K
31.2~39
19
26
1.5
10
85
800
RL1812A360K
33.6~42
21
28
1.5
10
92
800
RL1812A390K
36~45
25
30
1.5
10
99
800
RL1812A470K
45.6~57
30
38
1.5
10
125
800
RL1812A530K
50.4~63
32
42
1.5
10
138
800
RL1812A560K
54~67.5
35
45
1.5
10
148
800
RL1812A600K
57.6~72
37
48
1.5
10
158
800
RL1812A680K
67.2~84
40
56
1.5
10
184
800
RL1812A760K
72~90
43
60
1.5
10
198
800
RL1812A820K
78~97.5
46
65
1.5
10
214
800
RL1812A900K
81.6~102
49
68
1.5
10
224
800
RL1812A950K
90~112.5
54
75
1.5
10
247
800
RL1812A101K
102~127.5
60
85
1.5
10
280
800
RL1812A121K
108~132
65
90
1.5
10
290
800
RL1812A151K
135~165
75
110
1.5
10
340
500
RL1812A181K
162~198
115
150
2.3
10
360
400
RL1812A241K
216~264
150
200
2.3
10
415
400
RL1812A271K
243~297
175
225
2.3
10
475
400
RL1812A391K
351~429
250
320
2.3
10
650
400
RL1812A431K
387~473
275
350
2.3
10
710
400
RL1812A471K
423~517
300
385
2.3
10
775
400
Environmental Performance
Item
Specifications
Test Condition
Bias Humidity
VV / VV≤±10%
90%RH, 40ºC, Working Voltage, 1000 hrs
Thermal Shock
VV / VV≤±10%
-40ºC to 85ºC,30min.cycle,5 cycles
Full Load Voltage
VV / VV≤±10%
Working Voltage,85ºC,1000 hrs
General Technical Data
Operating Temperature
-40~+85 ºC
Storage Temperature
-40~+125 ºC
Response Time
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