VDR-20D 6KV 3KA Series
Metal Oxide Varistors (MOV)
Features
·Wide operating voltage (V1mA) range from 270V to 820V ·Fast responding to transient over-voltage ·Large absorbing transient energy capability ·Low clamping ratio and no follow-on current ·Meets MSL level 1, per J-STD-020 ·Operating Temperature:-40℃ ~ +85℃ ·Storage Temperature:-40℃ ~ +125℃1 ·Safety certification:
Applications ·Transistor, diode, IC, thyristor or triac semiconductor protection ·Surge protection in consumer electronics ·Surge protection in industrial electronics ·Surge protection in electronic home appliances, gas and petroleum appliances ·Relay and electromagnetic valve surge absorption
Description of Part Number
VDR - 20 D 471 K J
Brand Mark
NO SUFFIX: STANDARD MOV , SUFFIX J:HIGH SURGE MOV
Varistor Voltage Tolerance: K= ±10%
Nominal Varistor Voltage: 471=470V
D: DISK
Delivery Time
6KV/3KA MOV
VDR-20D271KHC~VDR-20D821KHC
DISC DIAMETER 20 = Φ20MM
Delivery Time 18days
Specifications are subject to change without notice
HUAAN LIMITED
1 www.huaandz.com
Tel: +86-755-27465585 Email:
[email protected]
Electrical Characteristics
Maximum
Part Number Allowable
Voltage
6KV/3KA MOV VAC(V) VDC(V)
VDR-20D271KEC 175
225
VDR-20D301KEC 190
250
VDR-20D331KEC 210
275
VDR-20D361KEC 230
300
VDR-20D391KEC 250
320
VDR-20D431KEC 275
350
VDR-20D471KEC 300
385
VDR-20D511KEC 320
415
VDR-20D561KEC 350
460
VDR-20D621KEC 385
505
VDR-20D681KEC 420
560
VDR-20D751KEC 460
615
VDR-20D781KEC 485
640
VDR-20D821KEC 510
670
VDR-20D 6KV 3KA Series
Varistor Voltage
Maximum Clamping Voltage
Maximum Typical
Safety
Withstandin Surge
Energy Capacitance Certificatio
Current
(10/1000μs) (Reference)
n
1.2/50us & 8/20us
V1mA(V)
VC(V)AT100 A
combination of wave,6KV/3KA
(J)
Sub 0,90,180,270
UL VDE 1KHz(pf)
four phases,Total
270(243~297) 455
80 times
209
670
√√
300(270~330) 500
80 times
231
610
√√
330(297~363) 550
80 times
251
560
√√
360(324~396) 595
80 times
281
510
√√
390(351~429) 650
80 times
303
460
√√
430(387~473) 710
80 times
336
230
√√
470(423~517) 775
80 times
385
430
√√
510(459~561) 845
80 times
396
390
√√
560(504~616) 925
80 times
418
360
√√
620(558~682) 1025
80 times
429
320
√√
680(612~748) 1120
80 times
440
290
√√
750(675~825) 1240
80 times
462
270
√√
780(702~858) 1290
80 times
484
260
√√
820(738~902) 1355
80 times
506
240
√√
Specifications are subject to change without notice
HUAAN LIMITED
2 www.huaandz.com
Tel: +86-755-27465585 Email:
[email protected]
Dimension(mm)
VDR-20D Straight Leads Series
Straight Leads
TABLE1
Symbol
Dimensions
H(Max)
25.0mm
L(Min)
20.0mm
D(Max)
22.0mm
D1(±0.8)
7.5±0.8/10.0±1.0
T
TABLE2
d(±0.05)
1.0mm
Packing Information
Part Number VDR-20Dxxx
Part number VDR-20D271K VDR-20D301K VDR-20D331K VDR-20D361K VDR-20D391K VDR-20D431K VDR-20D471K
TABLE2
T(±1.0mm) Part number
4.00mm
VDR-20D511K
4.05mm
VDR-20D561K
4.22mm
VDR-20D621K
4.08mm
VDR-20D681K
4.25mm
VDR-20D751K
4.47mm
VDR-20D781K
4.69mm
VDR-20D821K
T(±1.0mm) 4.91mm 5.18mm 5.51mm 5.84mm 6.23mm 6.39mm 6.61mm
Quantity 250PCS
Packaging Option Packaging Specification
Plastic bag
Bulk Pack
Specifications are subject to change without notice
HUAAN LIMITED
3 www.huaandz.com
Tel: +86-755-27465585 Email:
[email protected]
VDR-20D Straight Leads Series
Notice for use
To avoid damage to other equipment due to fire or deterioration caused by varistor, please refer to and
observe the following principles:
1) When a high current or high voltage flows into the varistor, the varistor itself may be damaged, heated,
smoke, catch fire and burst.
To avoid this, fuses or circuit breakers can be installed at both ends of the varistor or power supply;
The fuses of the following specifications are for reference only:
Diameter 05D 07D 10D 14D 20D
Rated current of fuse
1-2A 2-3A 3-5A 3-10A 5-15A
2) Do not allow the current and energy flowing into the varistor to exceed its rated value.
3) The marked VDR product brand names and marks are all patent applications of the company.
Customers who use or sell VDR products that are not specifically designated for such applications are at
their own risk.
4) All VDR products, product specifications and data are subject to change without notice, please improve.
For any data sheet Or any other data sheet. Any errors included. Inaccurate or incomplete shall not be
liable.
5) Regarding the suitability of products for specific applications. It is the customer's responsibility to
confirm that products with the characteristics described in the product specifications application. The data
provided in the parameter data sheets and / or specifications may vary for different applications and
performance may vary over time Variety. All operating parameters, including typical parameters, must be
provided by the cus.