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AMOTECH Co., Ltd.
Document
Type
Application
Part No.
Revision
Datasheet
Disk Varistor
Overvoltage Protection
S series
0
DATASHEET
Applications
· SMPS
· UPS
· AC Power Meter
· Overvoltage Protection Module
· AC Power Taps
· Surge Protection of Industrial Area
Features
· Energy rating up to 420 J, single 10 x1000 pulse, (20D751S)
· High surge current ratings up to 10kA
· Wide operating range 130 ~ 680Vrma
· Low leakage current
5D/7D/10D/14D/20D
S Series
AMOTECH
Notes
The contents of this datasheet are subject to change without notice. Please confirm the specifications and delivery
conditions when placing your order.
13

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SPECIFICATION
Zinc Oxide Varistors INR
Construction
1. Description
2. Designation Method of Part Number
3. Application Notes(UL)
4. Type and Shape
5. Electrical Spectification
6. Reliability Testing Procesdures
7. Lead Free Profile
8. Making and Illustration
9. Materials Compnent
10. Box Pakage
11. Manufacturer and Place
12. Comment
REV. DATE
REV. NO.
PAGE
2010. 2. 18
0
1/11
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SPECIFICATION
Zinc Oxide Varistors INR
REV. DATE
REV. NO.
PAGE
2010. 2. 18
0
2/11
1. Description
INR Varistor is a non-linear resistance material in which the current varies as a power of the applied voltage.
Voltage sensitive varistor have been used to great advance in many important application in the electrical
power communications and electronic industries.
2. Designation Method of Part Number
I N R 14 D 471 S B
S
AA2 50
Amotech Nonlinear
Variable Resistor
Disk Type
Diameter
of Varistor Element
05 5mm
07 7mm
10 10mm
14 14mm
20 20mm
First two digit
Significant figures
Third one
The number of
Zero following
B: Bulk
T: Taping
A: Auto Single
P: Auto Dual
C: Cutting
Lead Thick
AA: 0.6Φ
BB: 0.8Φ
CC: 1.0Φ
High Energy
Lead Type
① S: Straight
Y: Y-Forming
O: O-Forming
④ L: Bending
Epoxy Code
Encapsulation code
Lead Length
①250: 25mm
②100: 10mm
③050: 5mm
④037: 3.7mm
⑤034: 3.4mm
3. Application Notes for UL and CSA Recognized Components
- Related Standards
Standards
UL
CSA
VDE
File No.
E332687
E121315
LR83026-2
Re.Nr 114190
Title
Component
- Transient Voltage Surge Suppressors.
Component
- Across-the-line capacitors, antenna-coupling
and line-by-pass components.
Accessories and Patrs for Electronic Products
- Metal oxide varistors for across-the-line use
on 120Vac norminal systems.
Surge suppression Varistors
Zinc oxide, disk form, insulated with unidirectional leads.
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SPECIFICATION
Zinc Oxide Varistors INR
4. Type and Shape
4-1) Bulk-Straight
4-2) Cutting Type
REV. DATE
REV. NO.
PAGE
2010. 2. 18
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3/11
4-3) Cutting Out-Forming
4-4) Cutting Y-Forming
4-5) Bending Type
4-5) Taping Type(Straight & Y-Forming)
4-6) Taping Type(Out-Forming Taping)
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SPECIFICATION
Zinc Oxide Varistors INR
REV. DATE
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PAGE
2010. 2. 18
0
4/11
5-1. Electrical Specification : Φ07 Series
K grade tolerance = Vn(dc)±10%
Model no.
Varistor Voltage
1mA(V)
Min VN(DC)Max.
Max.
Continuous
Voltage(V)
Max.
Power
Clamping dissipation
Voltage(V)
Vm(ac) Vm(dc) Vc(V) Ip(A) Ptam(W)
Energy
(10/1000㎲)
Wtm(J)
Peak Current
(8/20㎲)
Itm(A)
INR7D180S 16 18 20 11 14 36 2.5 0.02
2.0
500
INR7D220S 20 22 24 14 18 43 2.5 0.02
2.4
500
INR7D270S 24 27 30 17 22 53 2.5 0.02
3.0
500
INR7D330S 30 33 36 20 26 65 2.5 0.02
3.5
500
INR7D390S 35 39 43 25 31 77 2.5 0.02
4.0
500
INR7D470S 42 47 52 30 38 93 2.5 0.02
5.0
500
INR7D560S 50 56 62 35 45 110 2.5 0.02
6.0
500
INR7D680S 61 68 75 40 56 135 2.5 0.02
7.0
500
INR7D820S 74 82 90 50 65 155 10 0.25
10
1750
INR7D101S 90 100 110 60 85 165 10 0.25
12.0
1750
INR7D121S 108 120 132 75 100 200 10 0.25
13.0
1750
INR7D151S 135 150 165 95 125 250 10 0.25
13.0
1750
INR7D181S 162 180 198 115 150 300 10 0.25
16.0
1750
INR7D201S 180 200 220 130 170 340 10 0.25
17.0
1750
INR7D221S 198 220 242 140 180 360 10 0.25
19.0
1750
INR7D241S 216 240 264 150 200 395 10 0.25
21.0
1750
INR7D271S 243 270 297 175 225 455 10 0.25
24.0
1750
INR7D331S 297 330 363 210 275 550 10 0.25
28.0
1750
INR7D361S 324 360 396 230 300 595 10 0.25
32.0
1750
INR7D391S 351 390 429 250 320 650 10 0.25
35.0
1750
INR7D431S 387 430 473 275 350 710 10 0.25
40.0
1750
INR7D471S 423 470 517 300 385 775 10 0.25
42.0
1750
INR7D511S 459 510 561 320 415 845 10
0.4
45.0
1750
INR7D561S 504 560 616 350 460 925 10
0.4
49.0
1750
INR7D621S 558 620 682 385 505 1,025 10
0.4
55.0
1750
INR7D681S 612 680 748 420 560 1,120 10
0.4
60.0
1750
INR7D751S 675 750 825 460 615 1,240 10
0.4
65.0
1750
INR7D781S 702 780 858 485 640 1,290 10
0.4
65.0
1750
INR7D821S 738 820 902 510 670 1,335 10
0.4
70.0
1750
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