SM1812A950K [SUNMATE]
METAL OXIDE VARISTORS;型号: | SM1812A950K |
厂家: | SUNMATE electronic Co., LTD |
描述: | METAL OXIDE VARISTORS |
文件: | 总4页 (文件大小:996K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
SM1812A Series
METAL OXIDE VARISTORS
Features
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EIA size:1812
Variable capacitance
Operating voltage: 18Vdc ~385Vdc
High surge suppress capability
Bidirectional and symmetrical V/I characteristics
Multilayer ceramic construction technology
RoHS & Halogen Free (HF) compliant
Operating temperature range: -40℃ ~ +85℃
Storage temperature range: -40℃ ~ +125℃
Applications
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Used to Help Achieve Electromagnetic Compliance of End Products
Provides On-Board Transient Voltage Protection for ICs, CMOS and MOSFET
Suppression of Inductive Switching or Other Transient Events Such as EFT and Surge Voltage at the Circuit Board.
Protection of Components and Circuits Sensitive to ESD Transients Occurring on Power supplies, Control and Signal
Lines.
Part Number Code
S
M
1
8
1
2
A
2
4
0
K
Packaging
1812
Standard
Varistor Voltage
24V
Tolerance
LOGO
K:±10%
Electrical Characteristics
Max.
Energy
(10/1000μs)
Max. Clamping
Voltage
Withstanding
Surge Current
(8/20μs)
Varistor
Voltage
Max. Allowable
Voltage
Type Number
(8/20μs)
V1mA(V)
VAC(V)
VDC(V)
18
(J)
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
2.3
2.3
2.3
2.3
2.3
2.3
IP(A)
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
VC(V)
I(A)
500
800
800
800
800
800
800
800
800
800
800
800
800
800
800
800
500
400
400
400
400
400
400
SM1812A240K
SM1812A270K
21.6~27
26.4~33
28.8~36
33.6~42
36~45
14
17
59
22
72
18
24
79
SM1812A300K
SM1812A360K
SM1812A390K
21
28
92
25
30
99
45.6~57
50.4~63
54~67.5
57.6~72
67.2~84
72~90
30
38
125
138
148
158
184
198
214
224
247
280
290
340
360
415
475
650
710
775
SM1812A470K
SM1812A530K
SM1812A560K
SM1812A600K
SM1812A680K
SM1812A760K
SM1812A820K
SM1812A900K
SM1812A950K
SM1812A101K
SM1812A121K
SM1812A151K
SM1812A181K
SM1812A241K
SM1812A271K
SM1812A391K
SM1812A431K
SM1812A471K
32
42
35
45
37
48
40
56
43
60
78~97.5
81.6~102
90~112.5
102~127.5
108~132
135~165
162~198
216~264
243~297
351~429
387~473
423~517
46
65
49
68
54
75
60
85
65
90
75
110
150
200
225
320
350
385
115
150
175
250
275
300
Environmental Performance
Item
Specifications
Test Condition
Bias Humidity
Thermal Shock
Full Load Voltage
VV / VV≤±10%
VV / VV≤±10%
VV / VV≤±10%
90%RH, 40ºC, Working Voltage, 1000 hrs
-40ºC to 85ºC,30min.cycle,5 cycles
Working Voltage,85ºC,1000 hrs
General Technical Data
Operating Temperature
Storage Temperature
Response Time
-40~+85 ºC
-40~+125 ºC
<1ns
Solderability
245±5 ºC, 3±1sec
260±5 ºC,10±1sec
5~40ºC
Solder leach resistance
Storage Temperature
Relative Humidity
Storage Time
To 65%
Taping Package Storage Condition
12 Months max
Soldering Parameters - Reflow Soldering (Surface Mount Devices)
Reflow Condition
Pb - Free assembly
150°C
TP
Critical Zone
Ramp-up
-Temperature Min (Ts(min)
)
-Temperature Max (Ts(max)
- Time (min to max) (ts)
TL to TP
TL
Pre
Heat
)
200°C
TS(max)
60 -180 Seconds
Ramp-down
Average ramp up rate ( Liquids
Temp TL) to peak
3°C/second max
3°C/second max
217°C
TS(min)
TS(max) to TL - Ramp-up Rate
- Temperature (TL)
Preheat
25
Reflo
w
(Liquids)
Time to peak temperature
Time
(t 25℃ to peak)
- Time (min to max) (ts)
60 -150 Seconds
Peak Temperature (TP)
260 +0/-5°C
Precaution for soldering
Time within 5°C of actual peak
Temperature (tp)
20 - 40 Seconds
Note that this product will be easily damaged by rapid heating, rapid
cooling or local heating.
Ramp-down Rate
6°C/second max
8 minutes Max
260°C
Do not give heat shock over 100°C in the process of soldering. We
recommend to take preheating and gradual cooling
Time 25°C to peak Temperature (TP)
Soldering gun procedure
Do not exceed
Note the follows, in case of using solder gun for replacement.
1)The tip temperature must be less than 280 for the period within 3
seconds by using soldering gun under 30W
2) The soldering gun tip shall not touch this product directly.
Soldering volume
Note that excess of soldering volume will easily get crack the body of
this product.
Dimensions And Recommended Pad Layout
Symbol
Millimeters
4.50±0.40
3.20±0.20
3.40
Inches
0.177±0.016
0.126±0.008
0.134
L
W
Tmax.
WB
I
0.60±0.25
3.7
0.024±0.01
0.146
J
5.4
0.213
K
3.2
0.126
Recommended Soldering Pad Layout
Taping and Reel Specifications
Symbol
W
Millimeters
12.00±0.20
1.75±0.10
5.50±0.05
1.55±0.05
Φ1.50±0.05
8.00±0.10
4.00±0.05
2.00±0.05
5.45±0.10
4.20±0.10
Inches
0.472±0.008
0.069±0.004
0.217±0.002
0.061±0.002
Φ0.059±0.002
0.315±0.004
0.157±0.002
0.079±0.002
0.215±0.004
0.165±0.004
E
F
D
D1
P
P0
P2
L0
W0
Packing Specifications
Symbol
D0
Millimeters
13.5±0.1
Inches
0.531±0.004
7.008±0.079
Φ2.362±0.02
0.515±0.008
D1
178±2.0
D2
Φ60.0±0.5
13.08±0.2
W1
Taping Specifications
There Shall be the portion having no product in
both the head and the end of taping, and there
shall be the cover tape in the heat of taping.
Quantity of products in the taping package
SIZE EIA (EIAJ)
1812
1000
Standard Packing Quantity (PCS/reel)
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