53D Series Metal Oxide Varistors
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53D Series Metal Oxide Varistors

The body of varistor is a matrix structure composed of zinc oxide particles. The grain boundaries between particles are similar to the electrical characteristics of bidirectional PN junctions. When the voltage is low, these grain boundaries are in the high impedance state, and when the voltage is high, they will be in the breakdown state, which is a kind of non-linear device.
Availability:
Quantity:

Application

  • Communication base station power supply

  • Railway signal power supply

  • Low voltage distribution equipment, control equipment, etc. below 1000V

  • Building distribution

  • Electric welder


Dimension

Product shape

Series

Varistor voltage

T max

图片2

53D

201-271

7.5

301-621

9.5

681-911

11.2

102-122

12.8

142-182

16


Part NO

Varistor Voltage

Maximum allowable voltage

Maximum Limited Voltage

Withstanding Surge current(8/20μs)times

Rated Wattage

Energy(2ms)


0.1mA

AC

DC

500A

I max

In

(W)

J


(V)

(V)

(V)

(A)


53D201K

200

185-225

130

170

340

70

30

1.6

330


53D221K

220

198-242

140

180

360

70

30

1.6

355


53D241K

240

216-264

150

200

395

70

30

1.6

380


53D271K

270

243-297

175

225

455

70

30

1.6

430


53D301K

300

270-330

190

250

500

70

30

1.6

455


53D331K

330

297-363

210

275

550

70

30

1.6

480


53D361K

360

324-396

230

300

595

70

30

1.6

510


53D391K

390

351-429

250

320

650

70

30

1.6

550


53D431K

430

387-473

275

350

710

70

30

1.6

635


53D471K

470

423-517

300

385

775

70

30

1.6

640


53D511K

510

459-561

320

415

845

70

30

1.6

640


53D561K

560

504-616

350

460

925

70

30

1.6

645


53D621K

620

558-682

385

505

1025

70

30

1.6

655


53D681K

680

612-748

420

560

1120

70

30

1.6

710


53D751K

750

675-825

460

615

1240

70

30

1.6

790


53D781K

780

702-858

485

640

1290

70

30

1.6

820


53D821K

820

738-902

510

670

1355

70

30

1.6

860


53D911K

910

819-1001

550

745

1500

70

30

1.6

950


53D102K

1000

900-1100

625

825

1650

70

30

1.6

990


53D122K

1200

1080-1320

750

980

1980

70

30

1.6

1015


53D152K

1500

1350-1650

900

1220

2475

70

30

1.6

1140


53D182K

1800

1620-1980

1000

1465

2970

70

30

1.6

1370



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