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PDF SVR621D20A Data sheet ( Hoja de datos )
| Número de pieza | SVR621D20A | |
| Descripción | Metal Oxide Varistors | |
| Fabricantes | Microtech | |
| Logotipo |  |
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Microtech (Hong Kong) Limited
Tel: 852 2799 4649 Fax: 852 2121 8310 Email: [email protected]
SPECIFICATION
Metal Oxide Varistors SVR®
REV. DATE
REV. NO.
0
1. Scope
This Specification is applied for Metal Oxide Varistors which provide reliable and economical
protection against high voltage transients and surges which may be priduced, for example
by lighting, switching or electrical noise on AC or DC power lines.
2. Explanation of Part Numbers(Typical example)
SVR 5 6 1 D 20 A
-
S 25
Common code
Hiel Varistor
Element type
Disk -Type
Varistor Voltage
The first two digits are significant
figures, the third one denotes
the number of Zeros following
Disk dia.
05 φ 05mm
07 φ 07mm
10 φ 10mm
14 φ 14mm
20 φ 20mm
Series
U U-Series
- S-Series
Lead length
25 25mm
10 10mm
Suffix
A High Voltage
B Low Voltage
Formig Type
S Straight
O Out - Kink
I IN - Kink
3. Operating Temperature Range: -40℃ ~ +85℃
4. Application Notes for UL and CSA Recognized Components
4.1 Related Standards
Standards
File No.
Title
UL1449
UL1414
E162771
E188093
CSA(Class 2221 01) LR103860-1
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.
P.1 of 7
1 page  
Microtech (Hong Kong) Limited
Tel: 852 2799 4649 Fax: 852 2121 8310 Email: [email protected]
SPECIFICATION
Metal Oxide Varistors SVR®
REV. DATE
REV. NO.
0
Electrical Characteristics(Continued)
Term
Test method/Discription
Specifications
Capacitance
Withstanding
Voltage
Capacitance shall be measured at 1 kHz±10%, 1Vrms max.
The specified
(1MHz±10% below 100pF), 0V bias and 20±2℃.
Value
The specified voltage shall be applied between both terminals of the
specimen connected together and metal foil closely wrapped round
its body for 1 minute. Electrical breakdown shall be examined.
(Body insulation)
Classification
(Nominal Varistor Voltage)
V0.1mA, V1mA ≤330V
V0.1mA, V1mA >330V
Test Voltage
1000 Vrms
1500 Vrms
No
breakdown
The change of VN(dc) shall be measured after the impulse listed
Impulse Life(1) below is applied 10,000 times continuously with the interval ten
seconds at room temperature.
ΔVN(dc)/VN(dc)
20 Series SVR820D20A to SVR112D20A 250A(8/20㎲)
≤±10%
The change of VN(dc) shall be measured after the impulse listed
below is applied 100,000 times continuously with the interval
Impulse Life(2) ten seconds at room temperature.
ΔVN(dc)/VN(dc)
20 Series SVR820D20A to SVR112D20A 120A(8/20㎲)
≤±10%
P.5 of 7
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| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet SVR621D20A.PDF ] | |
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