Applications
- Semiconductor device protection: Diodes, transistors, thyristors, IC etc.
- Home electronics protection: TVs, air conditioners, refrigerators, microwave ovens, etc.
- Office automation equipment protection: PPC copiers, fax machines, PCs, etc.
- Industrial equipment protection: Robots, water heaters, machining equipment, etc.
- Inrush surge protection: Electromagnetic clutches/brakes, relay control devices, circuit breakers etc.
- Others: Automotive electronics circuits, vending machines, communication/broadcasting equipment, etc.
Rating
Z7D180 to 680
| Part No. |
Varistor voltage V1mA |
Maximum allowable voltage |
Clamping voltage (max.) V2.5A |
Rated power |
Maximum energy (2ms) |
Maximum peak current ((8/20μs) |
Capacitance (TYP) (1kHz) |
| AC |
DC |
| V |
Vrms |
V |
V |
W |
J |
A |
pF |
| Z7D180 |
18(16～20) |
11 |
14 |
36 |
0.02 |
0.9 |
250 |
3,800 |
| Z7D220 |
22(20～24) |
14 |
18 |
43 |
1.1 |
3,600 |
| Z7D270 |
27(24～30) |
17 |
22 |
53 |
1.3 |
3,400 |
| Z7D330 |
33(30～36) |
20 |
26 |
65 |
1.6 |
2,900 |
| Z7D390 |
39(35～43) |
25 |
31 |
77 |
1.9 |
1,600 |
| Z7D470 |
47(42～52) |
30 |
38 |
93 |
2.3 |
1,550 |
| Z7D560 |
56(50～62) |
35 |
45 |
110 |
2.7 |
1,500 |
| Z7D680 |
68(61～75) |
40 |
56 |
135 |
3.3 |
1,200 |
Z7D820 to 511 (UL1449 (No. E331328）certified)
| Part No. |
Varistor voltage V1mA |
Maximum allowable voltage |
Clamping voltage (max.) V10A |
Rated power |
Maximum energy (2ms) |
Maximum peak current (8/20μs) |
Capacitance (TYP) (1kHz) |
| AC |
DC |
| V |
Vrms |
V |
V |
W |
J |
A |
pF |
| Z7D820 |
82(74～ 90) |
50 |
65 |
135 |
0.25 |
5.0 |
1,250 |
810 |
| Z7D101 |
100(90～110) |
60 |
85 |
165 |
6.0 |
700 |
| Z7D121 |
120(108～132) |
75 |
100 |
200 |
7.0 |
590 |
| Z7D151 |
150(135～165) |
95 |
125 |
250 |
9.0 |
500 |
| Z7D201 |
200(185～225) |
130 |
170 |
340 |
12.5 |
200 |
| Z7D221 |
220(198～242) |
140 |
180 |
360 |
13.5 |
190 |
| Z7D241 |
240(216～264) |
150 |
200 |
395 |
15.0 |
170 |
| Z7D271 |
270(247～303) |
175 |
225 |
455 |
17.0 |
150 |
| Z7D331 |
330(297～363) |
210 |
270 |
545 |
20.0 |
130 |
| Z7D361 |
360(324～396) |
230 |
300 |
595 |
23.0 |
130 |
| Z7D391 |
390(351～429) |
250 |
320 |
650 |
25.0 |
130 |
| Z7D431 |
430(387～473) |
275 |
350 |
710 |
27.5 |
120 |
| Z7D471 |
470(423～517) |
300 |
385 |
775 |
30.0 |
1 100 |
| Z7D511 |
510(459～561) |
320 |
410 |
845 |
32.0 |
1 90 |
1Measured at 1 MHz
Dimensions
| Part No. |
Dmax. |
Tmax. |
W1(±1) |
Hmax. |
W2(±1) |
φd |
| Z7D180 |
8.5 |
4.5 |
5.0 |
11.5 |
1.3 |
0.6 |
| Z7D220 |
4.6 |
1.4 |
| Z7D270 |
4.7 |
1.5 |
| Z7D330 |
4.9 |
1.7 |
| Z7D390 |
4.8 |
1.6 |
| Z7D470 |
4.9 |
1.7 |
| Z7D560 |
5.0 |
1.8 |
| Z7D680 |
5.2 |
2.0 |
| Z7D820 |
4.1 |
1.4 |
| Z7D101 |
4.3 |
1.6 |
| Z7D121 |
4.5 |
1.8 |
| Z7D151 |
4.8 |
2.1 |
| Z7D201 |
4.4 |
1.7 |
| Z7D221 |
4.5 |
1.8 |
| Z7D241 |
4.6 |
1.9 |
| Z7D271 |
4.8 |
2.1 |
| Z7D331 |
5.1 |
2.4 |
| Z7D361 |
5.3 |
2.5 |
| Z7D391 |
5.4 |
2.7 |
| Z7D431 |
5.6 |
2.9 |
| Z7D471 |
5.8 |
3.1 |
| Z7D511 |
6.0 |
3.3 |
Unit: mm
