GOH1-XXB Series Current Transducer

= 10 ... 50 A

Ref:GOH1-10B, GOH1-16B, GOH1-20B,

GOH1-32B, GOH1-40B, GOH1-50B

GOH1-20B

Parameter Symbol Unit Specification Conditions
Min Typical Max
Primary nominal RMS current IPN A -20 20
Primary current, measuring range IPM A -50 50 For UC > 4.6V
Number of primary turns NP - 1
Resistance of primary jumper @TA =25ºC RP mΩ 0.21 T=25ºC
Resistance of primary jumper @TA =105ºC RP mΩ 0.29 T jumper=120ºC
Supply voltage UC V 4.5 5 5.5
Current consumption IC mA 12 18
Reference voltage (output) Uref V 2.49 2.5 2.51 internal reference
Output voltage range @IPM Uout - Uref V -2 2
Vout output resistance Rout Ω 10
Vref output resistance Rref Ω 5
Load capacitance CL nF 6
Electrical offset voltage referred to primary@ IP=0 UOE mV -5 5 25ºC,Uout - Uref
Electrical offset current referred to primary IOE mA -125 125
Temperature coefficient of Uref TCVref ppm/K -170 170 -40ºC~105ºC
Temperature coefficient of UOE UOE - TRange mV -5 5 -40ºC~105ºC
Temperature coefficient of G TCG ppm/K -170 170 -40ºC~105ºC
Theoretical sensitivity Gth mV/A 40 800mV@IPN
Sensitivity error
εG
% -0.5 0.5 Factory adjustment
Linearity error 0…IPN εL % of IPN -0.5 0.5
Linearity error 0…IPM εL % of IPM -0.5 0.5
Magnetic offset current(@10*IPN) referred to primary IOM mA -62.5 62.5
Magnetic offset voltage(@10*IPN) referred to primary UOM mV -2.5 2.5
Output RMS noise voltage DC.....20MHz UN mVP-P 48
mVRMS 6
Reaction time @ 10% of IPN tra us 1.4 2 @50A/us
Step response time to 90% of IPN tr us 1.8 2.5 @50A/us
Frequency bandwidth(-3dB) BW kHz 250
Accuracy @IPN XTA % of IPN -1 1
Accuracy @IPN@TA TA % of IPN -2.5 2.5