Littelfuse SMOV25S Varistor Series Manual de usuario descargar pdf (Pagina 3)

239

Revised: May 8, 2013

Varistor Products

Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com/series/smov25s.html for current information.

SMOV25S Varistor Series

Thermally Protected Varistors > SMOV25S Series

SMOV25S Series

Typical time to open circuit under UL 1449 Abnormal

Overvoltage Limited Current Test:

Thermal Characteristics

0.1

110100

Current (A)

10 A

5 A

2.5 A

0.5 A

Typical

100

-45506070

90 100 110 120 130

AMBIENT TEMPERATURE (ºC)

PERCENT OF RATED VALUE

Peak Current & Energy Derating Curve

100

1000

10000

10µA 100µA 1mA 10mA 100mA 1A 10A 100A 1000A 10000A 100000A

Peak Current

Maximum Peak Voltage (V)

750

625

550

510

460

440

385

420

11 5

130

140

150

175 230

250

275

300

320

Transient V–I Characteristic Curves

For applications exceeding 75ºC ambient temperature, the

peak surge current and energy ratings must be reduced

as shown below.

Figure 1

Figure 2

Figure 3

1 2 3 4 5 6

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Littelfuse SMOV25S Varistor Series Manual de usuario Pagina 3

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