Inrush Current Limiters

Ametherm’s broad line of NTC Thermistors for inrush current limiting applications

These inrush current limiters can be used in circuits of up to 480 VAC. Many of Ametherm’s inrush current limiters have UL and/or CSA recognition and are available worldwide from our distribution partners and direct from our manufacturing facility in Carson City, Nevada – USA.

Click on the part number to be redirected to it’s dedicated page. There you will find mechanical and electrical specifications, data sheets, and direct links to purchase our Inrush Current Limiters.

Part Number	UL	CSA	R @ 25 °C	SSI	Joules	D	T	Digi-Key	Mouser	Newark
SL32 0R230	UL		0.3	30.0	100	31.0	6.0	570-1393-ND	995-SL32-0R230
SL22 0R516	UL	CSA	0.5	16.0	160	22.0	6.0	570-1031-ND	995-SL22-0R516	72J6814
SL32 0R530		CSA	0.5	30.0	150	31.0	5.0	570-1056-ND	995-SL32-0R530	72J6840
SL32 0R536		CSA	0.5	36.0	150	31.0	5.0	570-1057-ND	995-SL32-0R536	72J6841
MS32 0R540			0.5	40.0	250	31.0	7.0	570-1013-ND	995-MS32-0R540	72J6618
MS35 0R550			0.5	50.0	500	37.0	9.0	570-1023-ND	995-MS35-0R550	72J6628
MS32 0R536			0.5	36.0	250	31.0	7.0	570-1012-ND	995-MS32-0R536	72J6617
AS35 0R550			0.5	50.0	800	36.0	8.4	570-1110-ND	995-AS35-0R550
AS32 0R536	UL		0.5	30.0	300	29.0	7.8	570-1103-ND	995-AS32-0R536-100
AS32 0R530	UL		0.5	30.0	300	29.0	5.3	570-1118-ND	995-AS32-0R530-100
SL22 0R712	UL	CSA	0.7	12.0	120	22.0	6.0	570-1031-ND	995-SL22-0R712	72J6815
SL18 0R712			0.7	12.0	120	19.0	6.0	570-1450-ND	995-SL180R712	72J6807
SL15 0R710			0.7	10.0	30	15.0	4.5
SL32 1R030	UL	CSA	1.0	30.0	160	31.0	5.0	570-1059-ND	995-SL32-1R030	72J6842
SL32 1R036		CSA	1.0	36.0	160	31.0	6.0	570-1060-ND	995-SL32-1R036	72J6843
MS32 1R036			1.0	36.0	300	31.0	7.0	570-1016-ND	995-MS32-1R036	72J6619
MS35 1R040			1.0	40.0	800	37.0	11.0	570-1025-ND	995-MS35-1R040	72J6629
SL15 1R010	UL		1.0	10.0	45	16.0	5.8	570-1425-ND	995-SL15-1R010	72J6767
SL22 1R020	UL	CSA	1.0	20.0	65	22.0	6.0	570-1041-ND	995-SL22-1R020	72J6816
AS32 1R030	UL		1.0	30.0	300	30.0	8.0	570-1104-ND	995-AS32-1R030
AS35 1R040			1.0	40.0	800	36.0	8.5	570-1111-ND
AS32 1R036	UL		1.0	36.0	300	30.0	8.0	570-1119-ND	995-AS32-1R036-100
SL12 1R010			1.0	10.0	28	12.0	4.0	570-1077-ND	995-SL12-1R010
MS32 1R030			1.0	30.0	250	30.0	7.0
SL12 1R008		CSA	1.0	8.0	20	12.0	4.0
SL12 1R308	UL	CSA	1.3	8.0	40	13.0	4.5	SL12-1R308-ND	995-SL12-1R308	72J6731
SL10 1R506		CSA	1.5	6.0	20	10.0	4.0
SL22 2R018	UL	CSA	2.0	18.0	90	22.0	6.0	570-1044-ND	995-SL22-2R018	72J6826
SL32 2R023	UL	CSA	2.0	23.0	250	31.0	6.0	570-1061-ND	995-SL32-2R023	72J6845
SL32 2R025	UL	CSA	2.0	25.0	250	31.0	7.0	570-1062-ND	995-SL32-2R025	72J6846
SL10 2R005		CSA	2.0	5.0	30	10.0	5.0	570-1081-ND	995-SL10-2R005	72J6716
MS32 2R025	UL		2.0	25.0	300	31.0	10.0	570-1019-ND	995-MS32-2R025	72J6622
MS35 2R035			2.0	35.0	750	35.0	10.0	570-1027-ND	995-MS35-2R035	72J6631
AS32 2R025	UL		2.0	25.0	300	30.0	7.8	570-1105-ND	995-AS32-2R025
AS35 2R035			2.0	35.0	700	36.0	8.5	570-1112-ND	995-AS352R035
SL22 2R508			2.5	8.0	90	22.0	5.0	570-1045-ND	995-SL22-2R508	72J6827
SL22 2R510	UL	CSA	2.5	10.0	90	22.0	6.0	570-1046-ND	995-SL22-2R510	72J6828
SL22 2R515	UL	CSA	2.5	15.0	90	22.0	6.0	570-1047-ND	995-SL22-2R515	72J6829
SL18 2R508			2.5	8.0	90	19.0	5.1		995-SL18-2R508	72J6810
SL10 2R505	UL	CSA	2.5	5.0	30	10.0	4.5	570-1098-ND	995-SL10-2R505	72J6717
SL12 2R505	UL		2.5	5.0	36	13.0	5.0	570-1423-ND	995-SL12-2R505	72J6745
SL15 2R508	UL	CSA	2.5	8.0	40	16.0	5.0	570-1429-ND	995-SL15-2R508	72J6780
SL15 2R509		CSA	2.5	9.0	40	16.0	5.0	570-1102-ND	995-SL15-2R509	72J6781
SL08 2R503	UL		2.5	3.0	10	8.0	3.0	570-1120-ND	995-SL08-2R503
SL08 2R504			2.5	4.0	8	8.0	3.5
SL15 2R507	UL		2.5	7.0	40	15.0	4.5	570-1072-ND	995-SL15-2R507
SL12 2R507			2.5	7.0	25	12.0	5.1
SL15 2R506	UL		2.5	6.0	40	15.0	4.5	570-1428-ND	995-SL15-2R506
MS35 3R030			3.0	30.0	750	37.0	10.0	570-1028-ND	995-MS35-3R030	72J6633
AS35 3R030			3.0	30.0	600	36.0	8.5	570-1113-ND	995-AS35-3R030
SL22 4R014	UL	CSA	4.0	14.0	100	22.0	6.0	570-1050-ND	995-SL22-4R014	72J6833
SL32 4R023	UL		4.0	23.0	200	31.0	6.3	570-1063-ND	995-SL32-4R023	72J6847
SL05 4R003			4.0	3.0	5	6.0	3.5	570-1085-ND	995-SL05-4R003	72J6676
SL15 4R008	UL		4.0	8.0	40	16.0	5.0	570-1431-ND	995-SL15-4R008	72J6790
SL10 4R004	UL	CSA	4.0	4.0	20	10.0	5.0	570-1125-ND	995-SL10-4R004
SL08 4R003	UL		4.0	3.0	10	8.0	4.0	570-1412-ND	995-SL08-4R003
SL05 4R003			4.0	3.0	5	6.0	3.5	570-1085-ND	995-SL05-4R003
SL22 5R006			5.0	6.0	50	22.0	5.5	570-1052-ND	995-SL22-5R006	72J6835
SL22 5R012	UL	CSA	5.0	12.0	100	22.0	6.0	570-1053-ND	995-SL22-5R012	72J6836
SL32 5R020	UL	CSA	5.0	20.0	200	31.0	6.0	570-1064-ND	995-SL32-5R020	72J6848
SL18 5R006			5.0	6.0	75	19.0	6.0	570-1067-ND	995-SL18-5R006	72J6812
SL12 5R002			5.0	2.0	25	13.0	5.0	570-1451-ND		72J6754
SL05 5R001			5.0	1.0	5	6.0	3.5	570-1084-ND	995-SL05-5R001	72J6679
MS32 5R020	UL		5.0	20.0	300	31.0	8.0	570-1021-ND	995-MS32-5R020	72J6625
SL10 5R004			5.0	4.0	20	10.0	4.5	570-1452-ND	995-SL10-5R004	72J6726
AS32 5R020			5.0	20.0	300	32.0	8.4	570-1106-ND	995-AS32-5R020
AS35 5R025			5.0	25.0	600	36.0	8.5	570-1114-ND	995-AS355R025
SL12 5R004	UL		5.0	4.0	40	12.0	5.0	570-1134-ND	995-SL12-5R004	72J6756
SL08 5R002	UL		5.0	2.0	10	8.0	4.0	570-1121-ND	995-SL08-5R002
SL10 5R002			5.0	2.0	20	10.0	4.0
SL10 5R001			5.0	1.0	20	10.0	4.0
SL15 5R007	UL	CSA	5.0	7.0	50	15.5	5.0	570-1070-ND	995-SL15-5R007
SL10 5R003	UL		5.0	3.0	20	10.0	4.0	570-1419-ND	995-SL10-5R003
MS35 5R025			5.0	25.0	600	38.0	10.0	570-1029-ND	995-MS35-5R025
MS22 5R015			5.0	15.0	200	20.0	7.0
SL08 5R003		CSA	5.0	3.0	10	8.0	4.0	570-1443-ND	995-SL08-5R003
SL15 5R006	UL		5.0	6.0	50	15.0	4.5	570-1432-ND	995-SL15-5R006
SL05 5R001			5.0	1.0	5	6.0	3.5	570-1084-ND	995-SL05-5R001
SL08 5R001	UL		5.0	1.0	10	8.0	4.0
SL22 7R010	UL	CSA	7.0	10.0	100	22.0	6.0	570-1055-ND	995-SL22-7R010	72J6839
SL18 7R005			7.0	5.0	75	19.0	6.0	570-1453-ND		72J6813
SL18 7R010			7.0	10.0	50	19.0	6.0
SL15 7R005	UL		7.0	5.0	60	16.0	6.0	570-1433-ND	995-SL15-7R005	72J6803
MS32 7R015	UL		7.0	15.0	250	31.0	10.0	570-1022-ND	995-MS32-7R015	72J6627
SL15 7R005			7.0	5.0	60	15.0	4.5	570-1433-ND	995-SL15-7R005	72J6803
SL15 7R004			7.0	4.0	55	15.0	5.0
SL08 7R002		CSA	7.0	2.0	8	8.0	2.8	SL087R002-ND	995-SL08-7R002
SL12 8R004			8.0	2.0	25	13.0	6.0	570-1454-ND		72J6761
SL12 8R003	UL		8.0	3.0	25	12.0	5.0	570-1130-ND	995-SL12-8R003
SL22 10005			10.0	5.0	90	22.0	5.0	570-1032-ND	995-SL22-10005	72J6817
SL22 10007	UL		10.0	7.0	90	22.0	5.0	570-1033-ND	995-SL22-10007	72J6818
SL22 10008	UL	CSA	10.0	8.0	90	22.0	6.0	570-1034-ND	995-SL22-10008	72J6819
SL32 10015	UL	CSA	10.0	15.0	150	31.0	6.0	570-1058-ND	995-SL32-10015	72J6844
SL18 10005			10.0	5.0	75	19.0	6.0	570-1068-ND	995-SL18-10005	72J6808
SL12 10006	UL		10.0	6.0	40	12.3	5.5	570-1078-ND	995-SL12-10006	72J6734
SL12 10004			10.0	4.0	40	13.0	5.5	570-1079-ND	995-SL12-10004	72J6732
SL10 10003	UL	CSA	10.0	3.0	17	10.0	5.0	570-1082-ND	995-SL10-10003	72J6711
SL03 10001			10.0	1.0	1	3.7	3.5	570-1088-ND	995-SL03-10001	72J6655
MS22 10008	UL		10.0	8.0	200	23.0	9.5	570-1003-ND	995-MS22-10008	72J6608
MS32 10015	UL		10.0	15.0	250	31.0	9.3	570-1014-ND	995-MS32-10015	72J6620
MS35 10018			10.0	18.0	500	37.0	11.0	570-1024-ND	995-MS35-10018	72J6630
SL10 10004		CSA	10.0	4.0	17	10.0	4.5	570-1418-ND	995-SL10-10004	72J6712
SL15 10006	UL	CSA	10.0	6.0	55	16.0	5.5	570-1395-ND	995-SL15-10006	72J6769
SL22 10009			10.0	9.0	100	22.0	5.0	570-1035-ND	995-SL22-10009-B	72J6820
SL10 10002			10.0	2.0	10	10.0	4.5	570-1438-ND	995-SL10-10002	72J6710
SL12 10006-03			10.0	6.0	40	13.0	6.0	SL12 10006-03-ND	995-SL12-10006-03
AS32 10015	UL		10.0	15.0	250	30.0	8.5	570-1107-ND	995-AS32-10015
AS35 10018			10.0	18.0	500	36.0	8.5	570-1115-ND	995-AS35-10018
SL08 10002	UL	CSA	10.0	2.0	10	8.0	5.0	570-1094-ND	995-SL08-10002	72J6684
SL12 10005	UL	CSA	10.0	5.0	60	12.0	5.1	570-1131-ND	995-SL12-10005
SL05 10001			10.0	1.0	6	5.0	2.5	570-1394-ND	995-SL0510001
SL15 10008			10.0	8.0	55	15.0	5.5
SL05 10002			10.0	2.0	6	5.0	2.5
SL08 10003			10.0	3.2	9	7.5	4.0	SL0310003-ND
NT03 10391			10.0
SL15 10005			10.0	5.0	50	15.0	4.5
SL12 12004			12.0	4.0	40	12.5	5.0
SL22 14005			14.0	5.0	75	22.0	5.0	570-1038-ND	995-SL22-14005	72J6823
SL22 14007	UL	CSA	14.0	7.0	75	22.0	6.0	570-1039-ND	995-SL22-14007	72J6824
MS32 15012	UL		15.0	12.0	250	31.0	10.0	570-1015-ND	995-MS32-15012	72J6621
SL12 15004	UL		15.0	4.0	40	12.0	5.0	570-1132-ND	995-SL12-15004
SL10 15002			15.0	2.0	17	10.0	5.0
SL10 15003		CSA	15.0	3.0	3	10.0	5.0
SL22 16004	UL	CSA	16.0	4.0	100	22.0	7.0	570-1040-ND	995-SL22-16004	72J6825
SL18 16004			16.0	4.0	75	19.0	6.0	570-1455-ND		72J6809
SL15 16004	UL	CSA	16.0	4.4	50	15.0	4.5	570-1424-ND	995-SL15-16004
SL22 16005	UL		16.0	5.0	100	22.0	7.0	570-1444-ND	995-SL22-16005
SL12 17004	UL		17.5	4.0	30	11.5	5.1	570-1422-ND	995-SL12-17004
SL22 20005	UL	CSA	20.0	5.0	125	22.0	7.0	SL22 20005-ND	995-SL22-20005	26K6064
SL22 20007			20.0	7.0	125	22.0	5.0	570-1042-ND	995-SL22-20007	72J6830
SL22 20007-17			20.0	7.0	125	22.0	6.0
SL12 20003	UL		20.0	3.0	35	13.0	5.5	570-1076-ND	995-SL12-20003	72J6748
MS22 20005	UL		20.0	5.0	180	20.0	9.0	570-1007-ND	995-MS22-20005	72J6612
MS32 20008	UL		20.0	8.0	250	31.0	10.0	570-1017-ND	995-MS32-20008	72J6623
MS32 20010	UL		20.0	10.0	250	31.0	10.0	570-1018-ND	995-MS32-20010	72J6624
MS35 20010			20.0	10.0	500	37.0	11.0	570-1026-ND	995-MS35-20010	72J6632
SL08 20002			20.0	2.0	8	9.0	4.3	570-1083-ND	995-SL08-20002	72J6693
AS32 20010			20.0	10.0	250	29.0	9.0	570-1108-ND	995-AS32-20010
AS35 20010			20.0	10.0	500	36.0	9.0	570-1116-ND	995-AS35-20010
SL12 20002			20.0	2.0	30	12.0	5.1
SL03 20001			20.0	1.0	1	3.7	3.5	570-1396-ND	995-SL0320001
SL08 22002		CSA	22.0	2.0	8	8.5	4.5
SL22 20006-17			25.0	6.0	125	22.0	5.0
SL22 25004			25.0	4.0	150	22.0	6.0
SL22 25005			25.0	5.0	63	22.0	6.8
SL12 25002			25.0	2.0	30	13.0	5.5	570-1075-ND	995-SL12-25002	72J6750
SL15 25003		CSA	25.0	3.0	50	16.0	6.0	570-1426-ND	995-SL15-25003	72J6785
SL12 25003	UL		25.0	3.0	45	12.0	5.1	570-1127-ND	995-SL12-25003	72J6751
SL10 25002	UL		25.0	2.0	20	10.0	5.0	570-1123-ND	995-SL10-25002
SL15 25004	UL		25.0	4.0	50	15.0	4.5	570-1427-ND	995-SL15-25004
SL10 25002-A			25.0	2.0	20	10.0	5.0	570-1284-ND
SL22 30004			30.0	4.0	80	22.0	5.0
SL22 30005	UL	CSA	30.0	5.0	80	22.0	6.0	570-1048-ND	995-SL22-30005	72J6832
SL22 30006-17			30.0	6.0	80	22.0	5.0
SL05 30001			30.0	1.0	3	6.0	2.7	570-1086-ND	995-SL05-30001	72J6673
MS15 30004	UL		30.0	4.2	135	17.0	9.0	570-1001-ND	995-MS15-30004	72J6606
MS22 30005	UL		30.0	5.0	150	23.0	9.0	570-1009-ND	995-MS22-30005	72J6614
SL18 30006			30.0	6.0	65	18.0	6.5	570-1100-ND	995-SL18-30006
SL15 30005			30.0	4.0	40	15.0	5.0
SL15 30004	UL		30.0	4.0	40	15.0	5.0	570-1430-ND	995-SL15-30004
SL08 33001	UL		33.0	1.3	8	8.0	4.0	570-1095-ND	995-SL08-33001	72J6697
SL15 33004			33.0	4.0	55	15.0	5.0
SL22 40005			40.0	5.0	63	22.0	5.0	570-1049-ND	995-SL22-40005	72J6834
MS15 40004	UL		40.0	4.1	135	17.0	8.0	570-1002-ND	995-MS15-40004	72J6607
SL15 40004	UL		40.0	4.0	35	15.0	5.0	570-1136-ND	995-SL15-40004	72J6791
SL12 40002	UL		40.0	2.0	20	12.0	5.0	570-1128-ND	995-SL12-40002
SL10 40002	UL		40.0	2.0	15	11.0	6.0	570-1124-ND	995-SL10-40002
SL08 40002			40.0	2.0	8	8.0	4.0
SL03 40001			40.0	1.0	1	2.5	3.0
SL15 40002			40.0	2.0	35	15.0	5.0
SL22 47003			47.0	3.0	90	22.0	5.0	570-1456-ND		42M9891
SL15 47003			47.0	3.0	50	16.0	6.0	570-1071-ND	995-SL15-47003	72J6792
SL18 47003			47.0	3.0	75	19.0	7.5	570-1101-ND	995-SL18-47003	72J6811
SL22 50004	UL	CSA	50.0	4.0	80	22.0	7.0	570-1051-ND	995-SL22-50004	72J6837
SL10 50002			50.0	2.0	18	10.0	4.0	570-1080-ND	995-SL10-50002	72J6728
MS22 50004	UL		50.0	4.0	240	23.0	10.0	570-1010-ND	995-MS22-50004	72J6615
MS32 50006-L	UL		50.0	6.0	250	31.0	8.3	570-1411-ND	995-MS32-50006-L	72J6626
SL12 50002	UL		50.0	2.0	20	13.0	5.0	570-1074-ND	995-SL12-50002	72J6758
AS32 50006			50.0	6.0	250	30.0	9.0	570-1109-ND	995-AS32-50006
SL08 50001	UL		50.0	1.1	12	8.0	4.0	570-1096-ND	995-SL08-50001	72J6705
SL10 50001	UL		50.0	1.1	18	10.0	5.0	570-1126-ND	995-SL10-50001
MS32 50006			50.0	6.0	250	30.0	7.0	570-1020-ND	995-MS32-50006
SL03 50001			50.0	1.0	2	3.0	3.0	570-1397-ND	995-SL0350001
SL22 60003	UL	CSA	60.0	3.0	72	22.0	7.0	570-1054-ND	995-SL22-60003	72J6838
SL15 60002	UL		60.0	2.0	50	16.0	6.0	570-1069-ND	995-SL15-60002	72J6800
SL15 60004			60.0	4.0	50	16.0	6.0	570-1137-ND	995-SL15-60004	72J6801
SL05 60001			60.0	1.0	1	5.5	2.8	570-1399-ND	995-SL0560001
MS15 66003	UL		66.0	3.5	125	15.0	9.0	MS1566003-ND	995-MS1566003
MS22 75004	UL		75.0	4.0	240	23.0	9.0	570-1011-ND	995-MS22-75004	72J6616
SL12 80002	UL		80.0	2.0	30	13.0	6.0	570-1129-ND	995-SL12-80002	72J6762
SL15 80002	UL		80.0	2.0	45	15.0	5.5	570-1138-ND	995-SL15-80002
SL22 12102			120.0	2.0	80	22.0	6.0	570-1036-ND	995-SL22-12102	72J6821
SL22 12103	UL	CSA	120.0	3.0	80	22.0	6.0	570-1037-ND	995-SL22-12103	72J6822
MS22 12102	UL		120.0	2.0	220	23.0	10.0	570-1004-ND	995-MS22-12102	72J6609
MS22 12103	UL		120.0	3.0	220	23.0	10.0	570-1005-ND	995-MS22-12103	72J6610
MS22 12104	UL		120.0	4.0	220	23.0	10.0	570-1006-ND	995-MS22-12104	72J6611
SL08 12101	UL		120.0	1.0	10	8.0	4.0	570-1097-ND	995-SL08-12101	72J6688
SL12 12103			120.0	3.0	25	12.0	5.0	570-1457-ND		72J6738
SL05 12101			120.0	1.0	12	5.5	2.7	570-1398-ND	995-SL05 12101	72J6669
SL15 12102	UL		120.0	2.0	40	15.0	5.5	570-1135-ND	995-SL15-12102
SL10 12101	UL		120.0	1.0	14	10.5	5.0	570-1122-ND	995-SL10-12101
SL12 12101		CSA	120.0	1.0	25	12.0	5.0	570-1439-ND	995-SL12-12101
SL12 12102	UL		120.0	2.0	25	12.0	5.0	570-1420-ND	995-SL12-12102
MS12 15102	UL		150.0	2.0	110	13.5	8.7	570-1000-ND	995-MS12-15102	72J6605
SL12 15102	UL		150.0	2.0	10			570-1421-ND	995-SL12-15102
SL22 22101			220.0	1.0	2	3.0	3.0		995-SL22-22102	72J6831
SL15 22102	UL	CSA	220.0	2.0	40	16.0	6.0	570-1073-ND	995-SL15-22102	72J6784
SL03 22102			220.0	2.0	2	3.0	3.0		995-SL03-22101	72J6671
MS22 22103	UL		220.0	3.0	75	23.0	10.0	570-1008-ND	995-MS22-22103	72J6613
SL12 22101	UL		220.0	1.0	30	12.0	5.5	570-1133-ND	995-SL12-22101
SL22 22102			220.0	2.0	72	22.0	5.5	570-1043-ND	995-SL22-22102