Product Announcement from Ametherm, Inc.

BigAmp Inrush Current Limiters-Image

The bigAMP Inrush Current Limiter absorbs high amounts of inrush current when electrical equipment is turned on by offering a high resistance to current and quickly decreasing in resistance once steady state current begins to flow through the thermistor.

In a switching power supply, the instantaneous surge energy is caused by the large input filter capacitors and AC input voltage. During the absorption of energy, the initial high resistance of the thermistor drops within milliseconds to a negligible resistance in preparation of allowing high levels steady state current to flow with a minimal loss of power through the circuit.

The bigAMP Inrush Current Limiter will absorb up to 260 joules of input energy and carry 36 amperes of steady state current.

DTLead DiameterSL
32 mm Max6.0 mm Max1.0 mm Nom7.9 mm Nom38.0 mm MinStraight Leads
DTLead DiameterSL
32 mm Max6.0 mm Max1.0 mm Nom7.9 mm Nom38.0 mm MinStraight Leads

PartR@
25°c
(ohms)
Max
SSI
(A)
Max
Energy (j)
Actual
Failure (j)
R @
Max SSI(A)
R @50%
Max SSI(A)
DC
(s)
TC
(s)
Mat
SL32 0R2300.25301002000.0080.01845.4194A
SL32 0R5300.5301502950.0110.05845.4194B
SL32 OR5360.5362504950.0090.05845.4194B
SL32 1R0300.2301602700.0140.04845.4245C
SL32 1R0361.0361602700.0090.02845.4245C
SL32 2R0232.0232504950.0220.06880194G
SL32 2R0252.0253005480.0240.05545.4194G
SL32 4R0234.0232004480.020.06565.4208G
SL32 5R0205.0202003000.0340.08245.4194H
SL32 1001510.0152652200.0480.10845.4232I

PartR@
25°c
(ohms)
Max
SSI
(A)
Max
Energy (j)
Actual
Failure (j)
R @
Max SSI(A)
R @50%
Max SSI(A)
DC
(s)
TC
(s)
Mat
SL32 0R2300.25301002000.0080.01845.4194A
SL32 0R5300.5301502950.0110.05845.4194B
SL32 OR5360.5362504950.0090.05845.4194B
SL32 1R0300.2301602700.0140.04845.4245C
SL32 1R0361.0361602700.0090.02845.4245C
SL32 2R0232.0232504950.0220.06880194G
SL32 2R0252.0253005480.0240.05545.4194G
SL32 4R0234.0232004480.020.06565.4208G
SL32 5R0205.0202003000.0340.08245.4194H
SL32 1001510.0152652200.0480.10845.4232I
 
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