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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 Transient RMS DC Energy *2 Average Peak *3 50Hz/60Hz power current dissipation (8/20s) Vacm [Volts] Vdcm [Volts] Wtm [Joules] Ptam [Watts] Itm [Amps] Characteristics Nominal varistor voltage *4 Max. clamping *5 voltage @test current (8/20s) Vc [Volts] Ip [Amps] Typical capacitance
Vnom [Volts]
Tolerance Min. Max [Volts] [Volts]
f=1kHz [pF]
ENF221D05A ENF221D07A ENF221D10A ENF221D14A ENF241D05A ENF241D07A ENF241D10A ENF241D14A ENF271D05A ENF271D07A ENF271D10A ENF271D14A ENF471D05A ENF471D07A ENF471D10A ENF471D14A ENF511D10A ENF511D14A ENF621D10A ENF621D14A ENF681D10A ENF681D14A
140
180
150
200
175
225
300
385
320 385 420
410 505 560
6.5 13.5 28.0 55.0 7.5 15.0 30.0 60.0 8.0 17.0 35.0 70.0 15.0 30.0 60.0 125.0 67.0 136.0 67.0 136.0 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 1350 2750 5500 700 1350 2750 5500 700 1350 2750 5500 700 1350 2750 5500 2500 4500 2500 4500 2500 4500
220
198
242
240
216
264
270
247
303
470
423
517
510 620 680
459 558 612
561 682 748
380 360 360 360 415 395 395 395 475 455 455 455 810 775 775 775 845 845 1025 1025 1120 1120
5 10 25 50 5 10 25 50 5 10 25 50 5 10 25 50 25 50 25 50 25 50
170 350 700 1400 170 350 700 1300 150 300 600 1200 80 170 350 700 300 650 270 550 250 500
Operating ambient temperature: -40C to +85C
Storage temperature: -40C to +125C *3 Transient peak current (Itm) The peak current rating, Itm, is based on 8/20s 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 8/20s impulse current applied.
*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 (Wattsecond). 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.
1
FUJI Ceramic Surge Absorbers
Characteristic curves (Typical)
Transient V-I characteristic curves
2000 (ENF221D05A to ENF471D05A)
Z-TRAP
ENF series 220 to 680V (Varistor voltage)
Max. idle current
Max. clamping voltage
ENF471D05A
1000 900 800 700 600 500 400
ENF271D05A ENF241D05A ENF221D05A
A 71D05 ENF4
Voltage [V]
300 200
A 71D05 ENF2 A 41D05 ENF2 05A 1D ENF22
100 90 80 70 60 50 40 -6 10 10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
10
2
700
Current [A]
Transient V-I characteristic curves
2000 (ENF221D07A to ENF471D07A)
Max. clamping voltage
ENF471D07A
Max. idle current
1000 900 800 700 600 500 400
ENF271D07A ENF241D07A ENF221D07A
Voltage [V]
1D07A ENF47
300 200
D07A ENF271 1D07A ENF24 07A F221D EN
100 90 80 70 60 50 40 -6 10 10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
3
1350
Current [A]
Transient V-I characteristics curve
2000 (ENF221D10A to ENF471D10A)
Max idle current Max. clamping voltage ENF471D10A
1000 900 800 700 600
ENF271D10A ENF241D10A ENF221D10A
Voltage [V]
500 400 300
A 71D10 ENF2 0A 41D1 ENF2 10A 21D ENF2 A 71D10 ENF4
200
100 -6 10
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
3
2750
Current [A]
2
FUJI Ceramic Surge Absorbers
Z-TRAP
ENF series 220 to 680V (Varistor voltage)
Transient V-I characteristic curves
5000 4000 3000
(ENF511D10A to ENF681D10A)
Max. idle current Max. clamping voltage
2000
ENF681D10A ENF621D10A
Voltage [V]
ENF511D10A
1000 900 800 700 600 500 400 300
ENF511D10A ENF621D10A ENF681D10A
200 10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
3
2500
Current [A]
Transient V-I characteristic curves
2000 (ENF221D14A to ENF471D14A)
Max. idle current Max. clamping voltage ENF471D14A
1000 900 800 700 600 500 400 Voltage [V] 300 200
14A 471D ENF
ENF271D14A ENF241D14A ENF221D14A
14A 271D ENF 14A 241D ENF 14A 221D ENF
100 90 80 70 60 50 40 -6 10 10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
3
5500
Current [A]
Transient V-I characteristic curves
5000 4000 3000 2000
ENF681D14A ENF621D14A ENF511D14A
(ENF511D14A to ENF681D14A)
Max. idle current Max. clamping voltage
Voltage [V]
1000 900 800 700 600 500 400 300 200 -6 10
EN F 68 1D 1 4A 4A A 1D1
EN
F 62 F5
EN
14 1 1D
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
3
4500
Current[A]
3
FUJI Ceramic Surge Absorbers
Z-TRAP
ENF series 220 to 680V (Varistor voltage)
Pulse lifetime ratings
05A series (ENF221D05A to ENF471D05A)
1000
07A series (ENF221D07A to ENF471D07A)
10000
lse 2 pu 1-
100
1000
Rated peak pluse current [A]
Reted peak pulse current [A]
l se pu 1-
10
10 10 10
3
4
2
2
10 10
2
10
10 5 10
6
100
10 3
10 4 10 5 10 6
1
10
0.1
20
100
1000
10000
1
20
100
1000
10000
Impulse duration [us]
Impulse duretion [us]
10A series (ENF221D10A to ENF471D10A)
10000
14A series (ENF221D14A to ENF471D14A)
10000
1pu lse
e ls pu 1-
1000
1000
2
Rated peak pulse current [A]
Rated peak pulse current [A]
10
10
2
10
2
10 10
2
100
10
100
3
3
10 4 10 5
10 4
10 5
10 6
10 6
10
10
1
20
100
1000
10000
1
20
100
1000
10000
Impulse duration [us]
Impulse duration [us]
4
FUJI Ceramic Surge Absorbers
Z-TRAP
ENF series 220 to 680V (Varistor voltage)
10A series (ENF511D10A to ENF681D10A)
10000
10000
14A series (ENF511D14A to ENF681D14A)
1pu lse
1000
1000
2
e ls pu 1-
Rated peak pulse current [A]
Rated peak pulse current [A]
10
10
2
100
10 10
10
2
10
2 3
4
100
10
3
10 4 10 5
10 5 10
6
10 6
10
10
1
1
20
100
1000
10000
20
100
1000
10000
Impulse duration [us]
Impulse duration [us]
5
FUJI Ceramic Surge Absorbers
Dimensions, mm
. D max.
Z-TRAP
ENF series 220 to 680V (Varistor voltage)
T max.
1
H max.
2
oP
8 min.
W1
Part
1 2
Name Outside resin
(nonflammable resin)
Material Silicone resin
(blue gray)
Lead
(Pb- free)
Cu Surface conduct : Sn/Cu plated
Type number
ENF221D05A ENF241D05A ENF271D05A ENF471D05A ENF221D07A ENF241D07A ENF271D07A ENF471D07A ENF221D10A ENF241D10A ENF271D10A ENF471D10A ENF511D10A ENF621D10A ENF681D10A ENF221D14A ENF241D14A ENF271D14A ENF471D14A ENF511D14A ENF621D14A ENF681D14A
D
7.5
H
14.0
W
5.0
T
4.7 4.8 5.0 6.0
P
0.6
9.5
16.0
5.0
4.7 4.8 5.0 6.0 4.9 5.0 5.2
0.6
12.0
19.0
7.5
0.8
13.0
20.0
6.2 6.5 7.1 7.4
16.0
23.0
7.5
4.9 5.0 5.2
0.8
16.5
24.0
6.2 6.5 7.1 7.4
6
WARNING
1. This Catalog contains the product specifications, characteristics, data, materials, and structures as of May 2005. The contents are subject to change without notice for specification changes or other reasons. When using a product listed in this Catalog, be sure to obtain the latest specifications. 2. All applications described in this Catalog exemplify the use of Fuji's products for your reference only. No right or license, either express or implied, under any patent, copyright, trade secret or other intellectual property right owned by Fuji Electric Device Technology Co., Ltd. is (or shall be deemed) granted. Fuji Electric Device Technology Co., Ltd. makes no representation or warranty, whether express or implied, relating to the infringement or alleged infringement of other's intellectual property rights which may arise from the use of the applications described herein. 3. Although Fuji Electric Device Technology Co., Ltd. is enhancing product quality and reliability, a small percentage of semiconductor products may become faulty. When using Fuji Electric semiconductor products in your equipment, you are requested to take adequate safety measures to prevent the equipment from causing a physical injury, fire, or other problem if any of the products become faulty. It is recommended to make your design fail-safe, flame retardant, and free of malfunction. 4. The products introduced in this Catalog are intended for use in the following electronic and electrical equipment which has normal reliability requirements. * Computers * OA equipment * Communications equipment (terminal devices) * Measurement equipment * Machine tools * Audiovisual equipment * Electrical home appliances * Personal equipment * Industrial robots etc. 5. If you need to use a product in this Catalog for equipment requiring higher reliability than normal, such as for the equipment listed below, it is imperative to contact Fuji Electric Device Technology Co., Ltd. to obtain prior approval. When using these products for such equipment, take adequate measures such as a backup system to prevent the equipment from malfunctioning even if a Fuji's product incorporated in the equipment becomes faulty. * Transportation equipment (mounted on cars and ships) * Trunk communications equipment * Traffic-signal control equipment * Gas leakage detectors with an auto-shut-off feature * Emergency equipment for responding to disasters and anti-burglary devices * Safety devices 6. Do not use products in this Catalog for the equipment requiring strict reliability such as (without limitation) * Space equipment * Aeronautic equipment * Nuclear control equipment * Submarine repeater equipment * Medical equipment 7. Copyright 1996-2005 by Fuji Electric Device Technology Co., Ltd. All rights reserved. No part of this Catalog may be reproduced in any form or by any means without the express permission of Fuji Electric Device Technology Co., Ltd. 8. If you have any question about any portion in this Catalog, ask Fuji Electric Device Technology Co., Ltd. or its sales agents before using the product. Neither Fuji Electric Device Technology Co., Ltd. nor its agents shall be liable for any injury caused by any use of the products not in accordance with instructions set forth herein.

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