TAS1907-01 Model
Miniature Active AC Current Transformers

1.Features:

• Input is AC current signal, output is AC voltage signal;
• Operation amplifier is built-in inside, high accuracy of measurement is obtained;
• Completely sealed, strong mechanical and environmental endurance, strong dielectric strength, safe and reliable to use;
• Elegant outline, light and small in structure, being able to be directly soldered on PCB.

2.Ambient Conditions

• Ambient temperature: -55...+85°C;
• Relative humid <90% при 40°C;
• Atmospheric pressure: 860~1060mbar (650~800mmHg approximately);

3.Range of working Frequency: 20Hz~10kHz

4.Insulation Rating: Class F (155°C).

5.Safety features:

• Dielectric resistance: >1000MOm in normal condition;
• Insulation withstand voltages: 2000V 50Hz/1min;
• Fire retardancy: In conformity with UL94-Vo

6.Outline Drawing, Installation Dimension (shown as Fig. 1 below) and Function of Pins

7. Technical parameters:

8.Application Instructions:

• The input coil between Pin 2 and Pin 4 must be connected in series with the loop of the measured current circuit, Pin 6 connected to +B. Pin 9 connected to –B. Pin 8 connected to ground. Pin10 is the output terminal. Pin7 is the adjusting terminal.
• While input AC current moving between 0~5A, output of 0~5V between Pin10 and Pin 8 is obtained and is linearly correspondent.
• Phase shift can be compensated by connecting a capacitor between Pin 7 and Pin 10 and compensated to <15’ when choosing a capacitor of 0.033μF
• Output voltage can be changed by connecting a resistor between Pin 7 and Pin 10 and it will be as bellow if the resistor connected is R and input rated voltage:

9.Attention

• Pin 8 must be connected to ground, otherwise the accuracy will be influenced;
• If want to change output AC signal to DC signal, the method of absolute value rectifying can be applied to carry out. Otherwise, as the tube voltage drop of diode exists, the linear correspondence will be damaged;
• Increasing working voltage between Pin 6 and Pin 9 can extend scope of measuring, contrariwise it will reduce the scope;
• If the output and input parameters are not suitable for you, we can make it as request.