TA1420 Series Minitype Precision AC Current Transformers - Beijing TransFar Electronics Group Co., Ltd

1．Features:

① This product is designed to be directly welded onto a PCB.

② It is fully encapsulated, providing strong mechanical and environmental endurance, strong dielectric strength, and a beautiful appearance.

③ With high accuracy, a wide sampling range, and flexibility in usage, it is a reliable and versatile component for various applications.

2．Ambient Conditions:

① Ambient temperature: -55℃～+85℃;

② Relative humidity: ≤90% at 40℃;

③ Atmospheric pressure: 860～1060mbar(about 650～800mmHg).

3．Operating Frequency Range: 20Hz~1kHz

4．Insulation Thermal Class：Class F (155℃)

5．Safety Features:

① Dielectric resistance: >1000MΩ in normal condition;

② Insulation withstand voltages: 6000V 50Hz/1min;

③ Fire retardancy: In conformity with UL94-V0.

6．Outline Drawing, Installation Dimension and Coil Diagram: ( tolerance ± 0.5mm )

7．Typical Application and Technical Parameters:

①The parameters are listed in Table 1 while the sampling voltage is obtained directly by using a resistor (as shown in Fig.1 below).

②The parameters are listed in Table 2 while the sampling voltage is obtained by using an IC (as shown in Fig.2 below).

Table 1：

Model	Rated Input Current	Rated Output Current	Rated Sampling Resistor R_L	Rated Sampling Voltage	Phase Shift	Non Linearity	Linear Range	Withstand Voltage
TA1420-01	5A	5mA	200Ω	1V	≤30’	≤0.2%	≥2 times of the rated value	≥6KV
TA1420-01M	5A	5mA	250Ω	1.25V	≤37’	≤0.25%
TA1420-02	10A	5mA	400Ω	2V	≤20’	≤0.2%
TA1420-02M	10A	5mA	500Ω	2.5V	≤25’	≤0.25%
TA1420-03	15A	5mA	600Ω	3V	≤15’	≤0.2%	≥1.5 times of the rated value
TA1420-03M	15A	5mA	750Ω	3.75V	≤19’	≤0.25%
TA1420-04	20A	5mA	800Ω	4V	≤12’	≤0.2%
TA1420-04M	20A	5mA	1000Ω	5V	≤15’	≤0.25%
TA1420-05	25A	5mA	1000Ω	5V	≤10’	≤0.2%	≥1.2 times of the rated value
TA1420-05M	25A	5mA	1250Ω	6.25V	≤12.5’	≤0.25%
TA1420-06	30A	5mA	1200Ω	6V	≤9’	≤0.2%
TA1420-06M	30A	5mA	1500Ω	7.5V	≤11’	≤0.5%

Table 2：

Model	Rated Input Current	Rated Output Current	Rated Sampling Voltage	Phase Shift	Non Linearity	Linear Range	Withstand Voltage
TA1420-01	5A	5mA	≤1/2 IC’s power supply	≤5’	≤0.1%	≥2 times of the rated value	≥6KV
TA1420-01M	5A	5mA
TA1420-02	10A	5mA
TA1420-02M	10A	5mA
TA1420-03	15A	5mA
TA1420-03M	15A	5mA
TA1420-04	20A	5mA
TA1420-04M	20A	5mA
TA1420-05	25A	5mA
TA1420-05M	25A	5mA
TA1420-06	30A	5mA
TA1420-06M	30A	5mA

8．Attention:

① Connect the primary winding of the current transformer in series with the measured current loop, and operate the secondary winding in near short-circuit mode.

② Do not allow the secondary winding of the current transformer to be open-circuited and do not install any fuse in the secondary circuit.