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Development of high-voltage varistor composition allows application to AC100Vrms and AC200Vrms power circuits, which has not been materialized by conventional multilayer chip varistors hitherto.
■Features
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Applicable to AC100Vrms and AC200Vrms power lines. |
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Applicable to high voltage (varistor voltage: 470 V max.). |
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The zinc oxide material ensures high reliability with excellent nonlinearity and response. |
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Compact and available to be surface mounted. |
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RoHS Compliant. |
■Applications
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 temperature range : -40°C~+85°C |
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■Part Number System
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CVH
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70
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A
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271
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K
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-T(B)
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R
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Capacitance
A : High capacitance
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Varistor
voltage
271 : 270V
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Varistor voltage
tolerance
K : ±10%
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Packing form
T:Taping
B:Bulk
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■Dimensions
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Unit : mm
| Type |
EIA Symbol |
L |
W |
T Max. |
L1•L2 |
| CVH70 |
1812 |
4.5±0.3 |
3.2±0.3 |
3.2 |
0.8±0.3 |
| CVH80 |
2220 |
5.7±0.3 |
5.0±0.3 |
~271:3.2
391~:4.5 |
0.8±0.3 |
| *T changes according to the varistor voltage. |
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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 |
V1mA |
AC.
(Vrms) |
DC.
(V) |
8/20 μs (A) One time |
(J) |
(A) |
(V) |
(V) |
| CVH70A680K |
40 |
55 |
100 |
2 |
2.5 |
120 |
68 |
| CVH70A820K |
50 |
65 |
100 |
2 |
2.5 |
145 |
82 |
| CVH70A121K |
75 |
100 |
100 |
2 |
2.5 |
210 |
120 |
| CVH70A181K |
110 |
145 |
100 |
2 |
2.5 |
325 |
180 |
| CVH70A221K |
140 |
180 |
100 |
2 |
2.5 |
380 |
220 |
| CVH70A271K |
175 |
225 |
100 |
2 |
2.5 |
475 |
270 |
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| CVH80A680K |
40 |
55 |
300 |
5 |
5.0 |
120 |
68 |
| CVH80A820K |
50 |
65 |
300 |
5 |
5.0 |
145 |
82 |
| CVH80A121K |
75 |
100 |
300 |
5 |
5.0 |
210 |
120 |
| CVH80A181K |
110 |
145 |
300 |
5 |
5.0 |
325 |
180 |
| CVH80A221K |
140 |
180 |
300 |
5 |
5.0 |
380 |
220 |
| CVH80A271K |
175 |
225 |
300 |
5 |
5.0 |
475 |
270 |
| CVH80A391K |
250 |
320 |
300 |
5 |
5.0 |
675 |
390 |
| CVH80A471K |
300 |
385 |
300 |
5 |
5.0 |
810 |
470 |
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