40D Metal Oxide Varistors

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40D Metal Oxide Varistors

The body of varistor is a matrix structure composed of zinc oxide particles. The grain boundaries between particles are similar to the electrical characteristics of bidirectional PN junctions. When the voltage is low, these grain boundaries are in the high impedance state, and when the voltage is high, they will be in the breakdown state, which is a kind of non-linear device.

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Data sheet:
40DSerise -.pdf

Application

Communication base station power supply
Railway signal power supply
Low voltage distribution equipment, control equipment, etc. below 1000V
Building distribution
Electric welder

Part NO.	Varistor Voltage	Maximum allowable voltage	K normal type			KJ Enhanced
Part NO.	V1mA (V)	AC (V)	I_max （8/20μs）（A）	I_n(15 times) （8/20μs）（A）	Energy （10/1000μs）（J）	I_max （8/20μs）（A）	I_n(15 times) （8/20μs）（A）	Energy （10/1000μs）（J）
5D	82-750	50-400	400	150	2.5-18	800	250	3.5-33
7D	82-820	50-400	1200	500	6.0-43	1750	1000	8.4-7.1
10D	82-1800	50-1000	2500	1500	13-185	3500	1500	18-259
14D	82-1800	50-1000	4500	3000	26-378	6000	3000	31-450
20D	82-1800	50-1000	6500	3000	48-632	10000	5000	67-850
5D	18-68	11-40	100		0.5-2.1	250	150	0.7-2.9
7D	18-68	11-40	250		1.3-5.0	500	250	1.8-7.0
10D	18-68	11-40	500		2.8-11	1000	500	3.9-15
14D	18-68	11-40	1000		5.7-21	2000	1000	6.8-25
20D	18-68	11-40	2000		11-46	3000	1000	13-55
Comply with international and national standards			IEC61051-1 GB/T10193 IEC61051-2 GB/T10194 IEC61051-2-2 GBT10195 CSA-C22.2 No.269.5-17 UL1449			Include the left column and add the following criteria: IEC60950-1：2013/Annex Q GB/4943.1-2011 GB8898-2011 UL1449

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USB Interface

Product shape	Series	Varistor voltage	T max
	40D	201-271	7.5
		301-621	9.5
		681-911	11.2
		102-122	12.8
		142-182	16

Product shape	Series	Varistor voltage	T max
	40D	201-271	7.5
		301-621	9.5
		681-911	11.2
		102-122	12.8
		142-182	16

Part NO	Varistor Voltage		Maximum allowable voltage		Maximum Limited Voltage	Withstanding Surge current（8/20μs）times		Rated Wattage	Energy（2ms）
	1mA		AC	DC	V	I max	In	（W）	J
	(V)		(V)		300A	(A)
40D201K	200	185-225	130	170	340	40	20	1.4	260
40D221K	220	198-242	140	180	360	40	20	1.4	280
40D241K	240	216-264	150	200	395	40	20	1.4	300
40D271K	270	243-297	175	225	455	40	20	1.4	340
40D301K	300	270-330	190	250	500	40	20	1.4	360
40D331K	330	297-363	210	275	550	40	20	1.4	380
40D361K	360	324-396	230	300	595	40	20	1.4	405
40D391K	390	351-429	250	320	650	40	20	1.4	435
40D431K	430	387-473	275	350	710	40	20	1.4	500
40D471K	470	423-517	300	385	775	40	20	1.4	505
40D511K	510	459-561	320	415	845	40	20	1.4	505
40D561K	560	504-616	350	460	925	40	20	1.4	510
40D621K	620	558-682	385	505	1025	40	20	1.4	515
40D681K	680	612-748	420	560	1120	40	20	1.4	560
40D821K	820	738-902	510	670	1355	40	20	1.4	680
40D911K	910	819-1001	550	745	1500	40	20	1.4	750
40D102K	1000	900-1100	625	825	1650	40	20	1.4	780
40D122K	1200	1080-1320	750	980	1980	40	20	1.4	800
40D152K	1500	1350-1650	900	1220	2475	40	20	1.4	900
40D182K	1800	1620-1980	1000	1465	2970	40	20	1.4	1080

Part NO	Varistor Voltage		Maximum allowable voltage		Maximum Limited Voltage	Withstanding Surge current（8/20μs）times		Rated Wattage	Energy（2ms）
	1mA		AC	DC	V	I max	In	（W）	J
	(V)		(V)		300A	(A)
40D201K	200	185-225	130	170	340	40	20	1.4	260
40D221K	220	198-242	140	180	360	40	20	1.4	280
40D241K	240	216-264	150	200	395	40	20	1.4	300
40D271K	270	243-297	175	225	455	40	20	1.4	340
40D301K	300	270-330	190	250	500	40	20	1.4	360
40D331K	330	297-363	210	275	550	40	20	1.4	380
40D361K	360	324-396	230	300	595	40	20	1.4	405
40D391K	390	351-429	250	320	650	40	20	1.4	435
40D431K	430	387-473	275	350	710	40	20	1.4	500
40D471K	470	423-517	300	385	775	40	20	1.4	505
40D511K	510	459-561	320	415	845	40	20	1.4	505
40D561K	560	504-616	350	460	925	40	20	1.4	510
40D621K	620	558-682	385	505	1025	40	20	1.4	515
40D681K	680	612-748	420	560	1120	40	20	1.4	560
40D821K	820	738-902	510	670	1355	40	20	1.4	680
40D911K	910	819-1001	550	745	1500	40	20	1.4	750
40D102K	1000	900-1100	625	825	1650	40	20	1.4	780
40D122K	1200	1080-1320	750	980	1980	40	20	1.4	800
40D152K	1500	1350-1650	900	1220	2475	40	20	1.4	900
40D182K	1800	1620-1980	1000	1465	2970	40	20	1.4	1080

40D Metal Oxide Varistors

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