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Metal Oxide Varistors

A range of voltage dependent metal oxide varistors designed to protect equipment against transient voltage spikes. The varistors are connected directly across the power supply rails. When a when a voltage spike is encountered, the varistor rapidly changes impedance from its normal high impedance state while in standby mode, to a very low level, permitting absorbtion of the unwanted high voltage, and protecting voltage sensitive components and circuits from damage. Epoxy coated disc construction with radial leads. UL & CSA approved.
RoHS compliant

Response time:	<50ns
Voltage coefficient/temperature:	±0.05%/°C
DC leakage current:	200uA max.
Insulation voltage:	<330V nom. varistor voltage - 1000Vrms >330V nom. varistor voltage - 1500Vrms
Storage temp. range:	-40°C to +85°C
Operating temp. range:	-40°C to +125°C


Body	D.	H	Lead	Lead
Style	max.	max	pitch F	dia. D


07D	9	11	5.0	0.6
10D	14	15	7.5	0.8
14D	17.5	18	7.5	0.8
20D	24	25	7.5	0.8

Part No.	Manuf. Ref.	Max. Voltage VAC	Max. Voltage VDC	Varistor Voltage Nom.	Clamping Voltage (Max V at A)	Peak Transient Current (A)	Max. Energy 2ms (Joule)	Rated Power (W)	T max

579-010	07D180L	11	14	18	36@2.5A	250	0.8	0.02	3.5
579-015	07D220K	14	18	22	43@2.5A	250	0.9	0.02	3.8
579-020	10D220K	14	18	22	43@5A	500	2.0	0.05	4.2
579-025	10D330K	20	26	33	65@5A	500	3.0	0.05	3.9
579-030	07D470K	30	38	47	93@2.5A	250	1.8	0.02	3.9
579-035	07D560K	35	45	56	110@2.5A	250	2.2	0.02	4.2
579-040	07D820K	50	65	82	135@10A	1200	3.5	0.25	3.5
579-045	14D820K	50	65	82	135@50A	4500	14.0	0.60	4.0
579-050	10D151K	95	125	150	250@25A	2500	16.0	0.40	4.7
579-055	07D221K	140	180	220	360@10A	1200	10.0	0.25	3.6
579-060	14D221K	140	180	220	360@50A	4500	40.0	0.60	4.1
579-065	10D241K	150	200	240	395@25A	2500	25.0	0.40	4.1
579-075	07D271K	175	225	270	455@10A	1200	12.0	0.25	3.9
579-080	07D361K	230	300	360	595@10A	1200	15.0	0.25	4.3
579-085	10D361K	230	300	360	595@/25A	2500	35.0	0.40	4.7
579-090	14D361K	230	300	360	595@50A	4500	65.0	0.60	4.8
579-095	07D391K	250	320	390	650@10A	1200	17.0	0.25	4.3
579-100	20D391K	250	320	390	650@100A	6500	130	1.00	5.2
579-110	07D431K	275	350	430	710@10A	1200	20.0	0.25	4.6
579-112	10D431K	275	350	430	710@25A	2500	45.0	0.40	5.0
579-115	14D431K	275	350	430	710@50A	4500	75.0	0.60	5.1
579-120	20D431K	275	350	430	710@100A	6500	140.0	1.00	5.4
579-125	07D471K	300	385	470	775@10A	1200	20.0	0.25	4.8
579-130	14D471K	300	385	470	775@50A	4500	80.0	0.60	5.3
579-135	14D681K	420	560	680	1120@50A	4500	90.0	0.60	5.9
579-140	14D751K	460	615	750	1240@50A	4500	100.0	0.60	6.1
579-145	20D781K	485	640	780	1290@100A	6500	180.0	1.00	6.7
579-071	14D821K	510	670	820	1355@50a	4500	110.0	0.60	6.6

View product specification >

Order Code	Description	Price £ each			Add to basket
Order Code	Description	1+	100+	500+	Add to basket
579-010	M.O. Varistor 07D180K	£0.1000	£0.0700	£0.0500	Qty
579-015	M.O. Varistor 07D220K	£0.1000	£0.0700	£0.0500	Qty
579-020	M.O. Varistor 10D220K	£0.1600	£0.1200	£0.0800	Qty
579-025	M.O. Varistor 10D330K	£0.1600	£0.1200	£0.0800	Qty
579-030	M.O. Varistor 07D470K	£0.1000	£0.0700	£0.0500	Qty
579-035	M.O. Varistor 07D560K	£0.1000	£0.0700	£0.0500	Qty
579-040	M.O. Varistor 07D820K	£0.1000	£0.0700	£0.0500	Qty
579-045	M.O. Varistor 14D820K	£0.1600	£0.1200	£0.0800	Qty
579-050	M.O. Varistor 10D151K	£0.1200	£0.0800	£0.0600	Qty
579-055	M.O. Varistor 07D221K	£0.0700	£0.0500	£0.0350	Qty
579-060	M.O. Varistor 14D221K	£0.1600	£0.1200	£0.0800	Qty
579-065	M.O. Varistor 10D241K	£0.1200	£0.0800	£0.0600	Qty
579-075	M.O. Varistor 07D271K	£0.0700	£0.0500	£0.0350	Qty
579-080	M.O. Varistor 07D361K	£0.0700	£0.0500	£0.0350	Qty
579-085	M.O. Varistor 10D361K	£0.1200	£0.0800	£0.0600	Qty
579-090	M.O. Varistor 14D361K	£0.1600	£0.1200	£0.0800	Qty
579-095	M.O. Varistor 07D391K	£0.1000	£0.0700	£0.0500	Qty
579-100	M.O. Varistor 20D391K	£0.3200	£0.2200	£0.1600	Qty
579-110	M.O. Varistor 07D431K	£0.0800	£0.0600	£0.0400	Qty
579-112	M.O. Varistor 10D431K	£0.1200	£0.0800	£0.0600	Qty
579-115	M.O. Varistor 14D431K	£0.1600	£0.1200	£0.0800	Qty
579-120	M.O. Varistor 20D431K	£0.2800	£0.1800	£0.1300	Qty
579-125	M.O. Varistor 07D471K	£0.0800	£0.0600	£0.0400	Qty
579-130	M.O. Varistor 14D471K	£0.1600	£0.1200	£0.0800	Qty
579-135	M.O. Varistor 14D681K	£0.2000	£0.1400	£0.1000	Qty
579-140	M.O. Varistor 14D751K	£0.2000	£0.1400	£0.1000	Qty
579-145	M.O. Varistor 20D781K	£0.4800	£0.3300	£0.2400	Qty
579-071	M.O. Varistor 14D821K	£0.2600	£0.1900	£0.1300	Qty

Specification

Product	VAC	Ref.
579-010	11VAC	07D180L
579-015	14VAC	07D220K
579-020	14VAC	10D220K
579-025	20VAC	10D330K
579-030	30VAC	07D470K
579-035	35VAC	07D560K
579-040	50VAC	07D820K
579-045	50VAC	14D820K
579-050	95VAC	10D151K
579-055	140VAC	07D221K
579-060	140VAC	14D221K
579-065	150VAC	10D241K
579-075	175VAC	07D271K
579-080	230VAC	07D361K
579-085	230VAC	10D361K
579-090	230VAC	14D361K
579-095	250VAC	07D391K
579-100	250VAC	20D391K
579-110	275VAC	07D431K
579-112	275VAC	10D431K
579-115	275VAC	14D431K
579-120	275VAC	20D431K
579-125	300VAC	07D471K
579-130	300VAC	14D471K
579-135	420VAC	14D681K
579-140	460VAC	14D751K
579-145	485VAC	20D781K
579-071	510VAC	14D821K

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