Features

· Flame-resistant

Suppress combustion and smoking after a malfunction caused by larger

surge than the specified value

· Environment-friendly materials

Adopts newly developed halogen-free resin mold and the Pb-free plated

lead wires

· High reliability

Greatly improved heat-cycle resistance

· Small size and high performance

· Ratings and specifications are same as the conventional ENE series.

When a ripple voltage as from a rectifier source is applied, make

sure that the peak voltage is within the Vdcm rating.

The AC applied voltage (50/60Hz) is a sine waveform.

When waveform distortion is extensive, make sure that the peak

voltage is less than 2 times the Vacm rating.

Transient energy rating are given in the Wtm column in Joules (Watt-

second). The rating is the maximum allowable energy of a single 2ms

square-waveform impulse current continuously applied.

Energy ratings are based on a shift of Vnom of less than ±10% of

the initial value.

FUJI Ceramic Surge Absorbers

Z-TRAP

ENF series

220 to 680V (Varistor voltage)

Operating ambient temperature: -40°C to +85°C

Storage temperature: -40°C to +125°C

The peak current rating, Itm, is based on 8/20µs test impulse wave

form. This peak current is the maximum peak current at which the

nominal varistor voltage shift dose not exceed ±10% when the test

impulse is applied twice at a 5 minute interval.

Indicates the varistor terminal voltage measured with 1mA DC

applied. 05A type 0.1mA DC

Indicates the peak terminal voltage measured with 8/20µs impulse

current applied.

ENF221D05A

140

180

6.5

0.1

700

220

198

242

380

5

170

ENF221D07A

13.5

0.25

1350

360

10

350

ENF221D10A

28.0

0.4

2750

360

25

700

ENF221D14A

55.0

0.6

5500

360

50

1400

ENF241D05A

150

200

7.5

0.1

700

240

216

264

415

5

170

ENF241D07A

15.0

0.25

1350

395

10

350

ENF241D10A

30.0

0.4

2750

395

25

700

ENF241D14A

60.0

0.6

5500

395

50

1300

ENF271D05A

175

225

8.0

0.1

700

270

247

303

475

5

150

ENF271D07A

17.0

0.25

1350

455

10

300

ENF271D10A

35.0

0.4

2750

455

25

600

ENF271D14A

70.0

0.6

5500

455

50

1200

ENF471D05A

300

385

15.0

0.1

700

470

423

517

810

5

80

ENF471D07A

30.0

0.25

1350

775

10

170

ENF471D10A

60.0

0.4

2750

775

25

350

ENF471D14A

125.0

0.6

5500

775

50

700

ENF511D10A

320

410

67.0

0.4

2500

510

459

561

845

25

300

ENF511D14A

136.0

0.6

4500

845

50

650

ENF621D10A

385

505

67.0

0.4

2500

620

558

682

1025

25

270

ENF621D14A

136.0

0.6

4500

1025

50

550

ENF681D10A

420

560

67.0

0.4

2500

680

612

748

1120

25

250

ENF681D14A

136.0

0.6

4500

1120

50

500

Device

Maximum rating

Characteristics

type

Typical

RMS

DC

voltage @test

capaci-

50Hz/60Hz

power

current

current

tance

dissipation (8/20µs)

(8/20µs)

Tolerance

Vacm

Vdcm

Wtm

Ptam

Itm

Vnom

Min.

Max

Vc

Ip

f=1kHz

[Volts]

[Volts]

[Joules]

[Watts]

[Amps]

[Volts]

[Volts]

[Volts]

[Volts]

[Amps]

[pF]

Quality is our message

Quality is our message

Quality is our message

Quality is our message

Quality is our message

Ratings and characteristics

1