Inrush Current Limiters

  • Provides a simple one-component alternative to using wirewound resistors with timers and relays, MegaSurge series inrush current limiting NTC thermistors reduce costs and greatly simplify designs.
  • In addition, they increase safety by eliminating the fire hazard associated with failed relays.
  • While traditional thermistors are only certified for input voltages from 85 VAC to 265 VAC, UL-recognized MegaSurge devices are certified for single- and three-phase input voltages up to 480 VAC.
  • In addition, they have the ability to withstand high steady-state currents to 36 A and up to 300 J of input energy.
  • These specifications are the highest of any single-solution inrush current limiting device on the market.

Target Applications:  Inrush Current Protection of Power Supplies, Motor Controllers, Audio Amplifiers, Battery Chargers, Frequency Generators, Plasma Cutting Tools,  MRI Machines and, Toroidal Transformers.

PartRSSI
Max
Joules
Max
Max Cap
120 vac
Max Cap
240 vac
Max Cap
480 vac
D Max
(mm)
T Nom
(mm)
DigikeyMouserFarnell
MS32 2R0252.02530020,7005,2091,2043110570-1019-ND995-MS32-2R0259006079
MS32 5R0205.02030020,7005,2091,204317570-1021-ND995-MS32-5R0209006109
MS32 7R0157.01525017,0004,3411,0033110570-1022-ND995-MS32-7R015
MS22 1000810.0820013,8503,4738022310570-1003-ND995-MS22-100089005935
MS32 1001510.01525019,2504,3411,003319570-1014-ND995-MS32-100159006052
MS32 1501215.01225017,3004,3411,0033110570-1015-ND995-MS32-15012
MS22 2000520.0518012,0003,125722238570-1007-ND995-MS22-200059005978
MS32 2000820.0825017,3004,3411,0033110570-1017-ND995-MS32-20008
MS32 2001020.01025017,0004,3411,0033110570-1018-ND995-MS32-200109006095
MS15 3000430.041359,3002,344541178570-1001-ND995-MS15-30004
MS22 3000530.0515010,3002,604602239570-1009-ND995-MS22-30005
MS15 4000440.041359,3002,344541178570-1002-ND995-MS15-40004
MS22 5000450.0424016,4004,1679632310570-1010-ND995-MS22-500049006001
MS32 50006-L50.0625019,2504,3411,003317995-MS32-50006-L
MS22 7500475.0424016,4004,167963239570-1011-ND995-MS22-750049006010
MS22 12102120.0222015,0003,8208832310570-1004-ND995-MS22-12102
MS22 12103120.0322015,0003,8208832310570-1005-ND995-MS22-121039005951
MS22 12104120.0422015,2203,8208832310570-1006-ND995-MS22-121049005960
MS12 15102150.021107,5001,910441149570-1000-ND995-MS12-15102
MS22 22103220.04755,1001,3023012310570-1008-ND995-MS22-22103
PartRSSI
Max
Joules
Max
Max cap
120 vac
Max cap
240 vac
D Max
(mm)
T Nom
(mm)
DigikeyMouserFarnell
MS35 0R5500.55090062,00015,629379570-1023-ND995-MS35-0R5509006133
MS35 1R0401.04080055,00013,8933711570-1025-ND995-MS35-1R0409006141
MS35 2R0352.03575051,90013,024377570-1027-ND995-MS35-2R0359006168
MS35 3R0303.03075051,60013,0243710570-1028-ND995-MS35-3R0309006184
MS35 5R0255.02560041,25010,4193810570-1029-ND
MS35 1001810.01850034,0008,6833711570-1024-ND995-MS35-100189006150
MS35 2001020.01050034,0008,6833711570-1026-ND995-MS35-200109006176