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The multilayer chip varistor, CVA Series is a ceramic varistor for high-density surface mounting suitable for 12 VDC automobile circuits.
■Features
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High maximum energy type |
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The zinc oxide material ensures high reliability with excellent nonlinearity and response. |
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Applicable to JASO transient voltage test (Type A, A-1) (Size 90) |
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JASO "General Rules for Environmental Test of Automobile Electronic Equipment" |
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Compact and available to be surface mounted. |
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RoHS Compliant. |
■Applications
Protection of electronic equipment for automobiles from inductive lightning surge.
Protection of various semiconductor elements from overvoltage.
Protection of various types of equipment from inductive lightning surge.
Absorption of switching surge and electrostatic surge for relays, horns, and motors.
Operating tempereture range : -40°C~+125°C |
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■Part Number System
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CVA
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30
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A
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270
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M
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-T(B)
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W(R)
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Capacitance
A : High capacitance
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Varistor
voltage
270 : 27V
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Varistor voltage
tolerance
M :±20%
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Packing form
T:Taping
B:Bulk
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Termination
W : Ag
R : Ag/Pd
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| ■Dimensions |
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Unit : mm
| Type |
EIA Symbol |
L |
W |
T Max. |
L1•L2 |
| CVA30 |
1206 |
3.2±0.2 |
1.6±0.3 |
1.5 |
0.6±0.3 |
| CVA40 |
1210 |
3.2±0.2 |
2.5±0.3 |
1.5 |
0.6±0.3 |
| CVA70 |
1812 |
4.5±0.2 |
3.2±0.3 |
2.0 |
0.8±0.3 |
| CVA80 |
2220 |
5.7±0.2 |
5.0±0.3 |
3.0 |
0.8±0.3 |
| CVA90 |
3025 |
7.5±0.2 |
6.3±0.3 |
4.5 |
1.1±0.3 |
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■Part Number List•Specifications
| Part number |
Maximum rating |
Maximum
clamping
voltage |
Varistor
voltage |
Maximum
allowable voltage |
Maximum
peak current |
Maximum
energy |
Short-time
applied
voltage 5min. |
V1mA |
AC.
(Vrms) |
DC.
(V) |
8/20 μs (A)
One time |
(J) |
(VDC) |
(A) |
(V) |
(V) |
| CVA30A270M-□W |
11.0 |
16.0 |
50 |
1 |
24.0 |
0.5 |
43 |
27 |
| CVA40A270M-□W |
11.0 |
16.0 |
100 |
2 |
24.0 |
1.5 |
43 |
27 |
| CVA70A270M-□W |
11.0 |
16.0 |
200 |
5 |
24.0 |
2.5 |
43 |
27 |
| CVA80A270M-□R |
11.0 |
16.0 |
500 |
10 |
24.0 |
5.0 |
43 |
27 |
| CVA90A270M-□R |
11.0 |
16.0 |
1,000 |
50 |
24.0 |
10.0 |
43 |
27 |
* Specify the taped product (T) or bulk product (B) for □. |
