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Ametherm SURGE-GARD™ Inrush Current Limiters

Ametherm SURGE-GARD™ Inrush Current Limiting devices are manufactured using specially formulated metal oxide ceramic materials. SURGE-GARD devices are capable of suppressing high inrush current surges. These Ametherm inrush current limiters are especially useful in power supplies where the low impedance of the charging capacitor exposes the diode bridge rectifier to an excessively high current surge at turn-on.

Features

  • Offers resistance at 25°C from 0.5 to 120Ω
  • Features tolerances down to 15%
  • Offers diameters from 10mm to 32mm

Applications

  • Switching power supplies
  • AC motors
  • Motor drives
  • Audio amplifiers
  • Battery chargers
Part NumberData SheetCurrent RatingResistanceToleranceOperating Temperature RangeDimensions
SG2612 A5 Ohms15 %0 C to + 65 C0.9 in Dia. x 0.275 in W
SG2203 A10 Ohms15 %0 C to + 65 C0.45 in Dia. x 0.3 in W
SG1409 A2.5 Ohms15 %0 C to + 65 C0.6 in Dia. x 0.25 in W
SG408 A10 Ohms20 %0 C to + 65 C0.9 in Dia. x 0.35 in W
SG3214 A4 Ohms20 %0 C to + 65 C0.9 in Dia. x 0.35 in W
SG30715 A2.5 Ohms15 %0 C to + 65 C0.9 in Dia. x 0.3 in W
SG26030 A500 mOhms20 %0 C to + 65 C1.25 in Dia. x 0.2 in W
SG33610 A7 Ohms15 %0 C to + 65 C0.95 in Dia. x 0.275 in W
SG32630 A500 mOhms20 %0 C to + 65 C1.25 in Dia. x 0.2 in W
SG6410 A7 Ohms15 %0 C to + 65 C0.95 in Dia. x 0.275 in W
SG32830 A1 Ohms25 %0 C to + 65 C1.25 in Dia. x 0.25 in W
SG35523 A2 Ohms25 %0 C to + 65 C1.25 in Dia. x 0.3 in W
SG40530 A1 Ohms25 %0 C to + 65 C1.25 in Dia. x 0.25 in W
SG394 A12 Ohms+/- 10 %0 C to + 65 C0.5 in Dia. x 0.35 in W
SG2104 A7 Ohms15 %0 C to + 65 C0.6 in Dia. x 0.3 in W
SG3124 A7 Ohms15 %0 C to + 65 C0.6 in Dia. x 0.3 in W
SG10020 A1 Ohms15 %0 C to + 65 C0.9 in Dia. x 0.3 in W
SG15010 A2.5 Ohms15 %0 C to + 65 C0.9 in Dia. x 0.3 in W
SG33312 A5 Ohms15 %0 C to + 65 C0.9 in Dia. x 0.275 in W
SG33014 A4 Ohms20 %0 C to + 65 C0.9 in Dia. x 0.35 in W
SG16015 A2.5 Ohms15 %0 C to + 65 C0.9 in Dia. x 0.3 in W
SG1307 A2.5 Ohms15 %0 C to + 65 C0.6 in Dia. x 0.25 in W
SG2503 A120 Ohms15 %0 C to + 65 C0.925 in Dia. x 0.25 in W
SG345   0 C to + 65 C 
SG161.5 A60 Ohms+/- 10 %0 C to + 65 C0.6 in Dia. x 0.25 in W
Part NumberData SheetCurrent RatingResistanceToleranceOperating Temperature RangeDimensions
SG3173 A120 Ohms15 %0 C to + 65 C0.925 in Dia. x 0.25 in W
SG3047 A2.5 Ohms15 %0 C to + 65 C0.6 in Dia. x 0.25 in W
SG30120 A1 Ohms15 %0 C to + 65 C0.9 in Dia. x 0.3 in W
SG30610 A2.5 Ohms15 %0 C to + 65 C0.9 in Dia. x 0.3 in W
SG2301.75 A20 Ohms15 %0 C to + 65 C0.5 in Dia. x 0.3 in W
SG3151.75 A20 Ohms15 %0 C to + 65 C0.5 in Dia. x 0.3 in W
SG3133 A10 Ohms15 %0 C to + 65 C0.45 in Dia. x 0.3 in W
SG3033 A2.5 Ohms15 %0 C to + 65 C0.6 in Dia. x 0.25 in W
SG3385 A10 Ohms15 %0 C to + 65 C0.6 in Dia. x 0.35 in W
SG425 A10 Ohms15 %0 C to + 65 C0.6 in Dia. x 0.35 in W
SG1203 A2.5 Ohms15 %0 C to + 65 C0.6 in Dia. x 0.25 in W
SG3104 A5 Ohms15 %0 C to + 65 C0.6 in Dia. x 0.25 in W
SG3117 A5 Ohms15 %0 C to + 65 C0.6 in Dia. x 0.25 in W
SG3146 A10 Ohms15 %0 C to + 65 C0.5 in Dia. x 0.35 in W
SG3788 A5 Ohms 0 C to + 65 C 
SG1708 A4 Ohms15 %0 C to + 65 C0.6 in Dia. x 0.25 in W
SG1904 A5 Ohms15 %0 C to + 65 C0.6 in Dia. x 0.25 in W
SG3162 A40 Ohms15 %0 C to + 65 C0.625 in Dia. x 0.25 in W
SG2402 A40 Ohms15 %0 C to + 65 C0.625 in Dia. x 0.25 in W
SG3059 A2.5 Ohms15 %0 C to + 65 C0.6 in Dia. x 0.25 in W
SG276 A10 Ohms15 %0 C to + 65 C0.5 in Dia. x 0.35 in W
SG448 A5 Ohms20 %0 C to + 65 C0.6 in Dia. x 0.25 in W
SG3088 A4 Ohms15 %0 C to + 65 C0.6 in Dia. x 0.25 in W
SG2007 A5 Ohms15 %0 C to + 65 C0.6 in Dia. x 0.25 in W
SG3394 A12 Ohms+/- 10 %0 C to + 65 C0.5 in Dia. x 0.35 in W
SG57           
                 6 A                     
5 Ohms       
+/- 10 % 
0 C to + 65 C                            
0.6 in Dia. x 0.25 in W    
SG3316 A5 Ohms+/- 10 %0 C to + 65 C0.6 in Dia. x 0.25 in W
SG30218 A2 Ohms15 %0 C to + 65 C0.9 in Dia. x 0.35 in W
SG11018 A2 Ohms15 %0 C to + 65 C0.9 in Dia. x 0.35 in W
SG42023 A2 Ohms25 %0 C to + 65 C1.25 in Dia. x 0.3 in W