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SVR820D20A 데이터시트 PDF




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부품번호 SVR820D20A 기능
기능 Metal Oxide Varistors
제조업체 Microtech
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SVR820D20A 데이터시트, 핀배열, 회로
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




SVR820D20A pdf, 반도체, 판매, 대치품
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
8. Perfomance Characteristics
Term
Test method/Discription
Specifications
Standard Test Environmental conditions under which every measuring is done
Condition without doubt on the measuring results. Unless otherwise specified
temperature, relative humidity are 5 to 35℃, 45 to 85% RH
Varistor Voltage Voltage across the varistor measured at a specified pulsed dc
current, IN(dc)
The maximum sinusoidal rms voltage or maximum dc voltage
Rated Voltage
which may be applied.
DC Standby Current Varistor current measured at rated voltage, Vm(dc)
Peak voltage across the varistor measured under the conditions
of a specified peak pulse current and specified waveform(8/20㎲)
illustrated below.
-
Clamping Voltage
The specified
Value
Rated Power Maximum average power which may be dissipated due to a group
of the pulses occurring within a specified isolated time period.
The maximum energy which may be dissipated for a single
Pluse transient impulse of maximum rated current at a specified wave
shape(10/1000㎲), within the varistor voltage change of ±10%
The maximum current which may be applied for a single 8/20㎲
Peak Pulse Current
impulse, within the varistor voltage change of ±10%.
Temperature
Coefficient of Varistor
VN(dc) at 85℃ - VN(dc) at 25℃ 1
Ⅹ Ⅹ 100(%/℃)
VN(dc) at 25℃
60
-0.05%/℃ ~ 0
max.
P.4 of 7

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SVR820D20A 전자부품, 판매, 대치품
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
10. Environmental Characteristics
Term
Test method/Discription
specifications
The specimen shall be subjected to 125±2℃ for 1000 hours in
Dry Heat/ High a thermostatic bath without load and then stored at room
Temperature temperature and norminal humidity for one to two hours.
Storage
Damp
Heat/Humidity
(Steady State)
Thereafter, the change of VN(dc) shall be measured.
The specimen shall be subjected to 40±2℃, 90 to 95%RH and
the
max continuous voltage for1000 hours and then stored at room
temperature and normal humidity for one to two hours.
ΔVN(dc)/VN(dc)
≤±10%
Thereafter, the change of VN(dc) shall be measured.
Cold/Low The specimen shall be subjected to -40±2℃ without load for 1000 No remakable
Temperature hours and then stored at room temperature and norminal humidity for damage
one to two hours. Thereafter, the change of VN(dc) shall be measured. ΔVN(dc)/VN(dc)
≤±5%
The temperature cycles shown below shall be repeated five times and
then stored at room temperature normal humidity for one two hours.
Temperature The change of VN(dc) and mechanical shall be examined.
No remakable
Cycle
Step
Temperature(℃)
Period(minutes)
damage
1
-40±3
30±3
ΔVN(dc)/VN(dc)
2
Room Temp.
15±3
≤±10%
3
125±2
30±3
4
Room Temp.
15±3
High temperature After being continuously applied the maximum continuous voltage
load/Dry heat load at 85±5℃ for 1,000 hours, the specimen shall be stored at room ΔVN(dc)/VN(dc)
tempetature and normal humidity for one two hours.
≤±10%
Thereafter, the change of VN(dc) shalled be measured.
Humidity
The specimen shall be subjected to 40±2℃, 90 to 95%RH without ΔVN(dc)/VN(dc)
(Steady state) load for 1,000 hours and then stored at room temperature and normal ≤±5%
humidity for 1 to 2 hours.Thereafter, the change of VN(dc) shall be measured.
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부품번호상세설명 및 기능제조사
SVR820D20A

Metal Oxide Varistors

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