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ENF471D05A fiches techniques PDF

Fuji Electric - 220 TO 680V (VARISTOR VOLTAGE)

Numéro de référence ENF471D05A
Description 220 TO 680V (VARISTOR VOLTAGE)
Fabricant Fuji Electric 
Logo Fuji Electric 





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ENF471D05A fiche technique
Quality is our message
FUJI Ceramic Surge Absorbers
Z-TRAP
ENF series
220 to 680V (Varistor voltage)
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.
Ratings and characteristics
Device
type
Maximum rating
Applied voltage *1
RMS
DC
50Hz/60Hz
Transient
Energy *2
Average Peak *3
power
current
dissipation (8/20µs)
Vacm Vdcm
[Volts] [Volts]
Wtm
Ptam
[Joules] [Watts]
Itm
[Amps]
Characteristics
Nominal varistor voltage *4
Vnom
[Volts]
Tolerance
Min. Max
[Volts] [Volts]
Max. clamping *5
voltage @test
current
(8/20µs)
Typical
capaci-
tance
Vc
[Volts]
Ip f=1kHz
[Amps] [pF]
ENF221D05A
ENF221D07A
ENF221D10A
ENF221D14A
ENF241D05A
ENF241D07A
ENF241D10A
ENF241D14A
ENF271D05A
www.DEatNaSFh2e7e1t4DU0.7coAm
ENF271D10A
ENF271D14A
ENF471D05A
ENF471D07A
ENF471D10A
ENF471D14A
ENF511D10A
ENF511D14A
ENF621D10A
ENF621D14A
ENF681D10A
ENF681D14A
140
150
175
300
320
385
420
180 6.5
13.5
28.0
55.0
200 7.5
15.0
30.0
60.0
225 8.0
17.0
35.0
70.0
385 15.0
30.0
60.0
125.0
410 67.0
136.0
505 67.0
136.0
560 67.0
136.0
0.1
0.25
0.4
0.6
0.1
0.25
0.4
0.6
0.1
0.25
0.4
0.6
0.1
0.25
0.4
0.6
0.4
0.6
0.4
0.6
0.4
0.6
700 220 198 242
380
1350
360
2750
360
5500
360
700 240 216 264
415
1350
395
2750
395
5500
395
700 270 247 303
475
1350
455
2750
455
5500
455
700 470 423 517
810
1350
775
2750
775
5500
775
2500 510 459 561
845
4500
845
2500 620 558 682 1025
4500
1025
2500 680 612 748 1120
4500
1120
5 170
10 350
25 700
50 1400
5 170
10 350
25 700
50 1300
5 150
10 300
25 600
50 1200
5 80
10 170
25 350
50 700
25 300
50 650
25 270
50 550
25 250
50 500
Operating ambient temperature: -40°C to +85°C
Storage temperature: -40°C to +125°C
*1 The waveform of the maximum DC applied voltage is flat.
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.
*2 Energy Wtm
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.
*3 Transient peak current (Itm)
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.
*4 Nominal varistor voltage: Vnom
Indicates the varistor terminal voltage measured with 1mA DC
applied. 05A type 0.1mA DC
*5 Maximum clamping voltage: Vc
Indicates the peak terminal voltage measured with 8/20µs impulse
current applied.
1

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