LA37S Family

caraLA37S Family

LA37S Series of magnetic proportional current sensor with 2 series x 14 models.

・Primary nominal current ;  50 ~ 600 A
・Power supply specifications ; +5V
・With reference access(Vref_in/out)
・Two types of rated output voltage; Vof ± 800mV or Vof ±625mV
・Two types of connectors according to the application
・Non ratiometric output (Vout, Voff, Vref)

Series Symbol LA37SxxxS05 LA37SxxxS05K    (Conventional model)
Supply voltage Vcc +5V +5V +5V
Primary nominal current IPN 50~600A 50~600A 50~600A
Primary current, measuring range
(Saturation current)
IPM 150~1200A 150~1200A 150~900A
Internal reference voltage Vref +2.5V +2.5V +2.5V
Offset voltage Vof
+2.5V or Vref_in +2.5V or Vref_in +2.5V or Vref_in
Rated output voltage
(at IPN
Vo Vof±800mV Vof±625mV Vof±625mV
Ambient operating temperature TA -40~+105℃ -40~+105℃ -40~+85℃
Temperature drift of reference voltage TcVref ±10mV
(TA=full range)
(TA=full range)
Temperature drift of offset voltage TcVof ±10mV
(TA=full range)
(TA=full range)
Temperature coefficient of sensitivity TCG ±3%
(TA=full range)
(TA=full range)
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Spec Sheet pdf pdf -