2

Technical Data ELX1188

Effective April 2022

ECST1V1308

SMT current sense transformer

www.eaton.com/electronics

Product specifications

Part number3

Turns ratio

sec:pri

Secondary

inductance (mH)

@ 100 kHz 0.3 V

minimum

DCR sec (Ω)

maximum

DCR pri (mΩ)

reference

Hi-pot pri to sec

@ 3 mA 3 seconds

50 Hz

Sensed

current1 (A)

maximum

ECST1V1308-1020-R

20:1

0.22

0.21

3.9

500 Vac

15

ECST1V1308-1030-R

30:1

0.5

0.32

3.9

500 Vac

15

ECST1V1308-1040-R

40:1

0.88

0.5

3.9

500 Vac

15

ECST1V1308-1050-R

50:1

1.4

0.65

3.9

500 Vac

15

ECST1V1308-1060-R

60:1

2

0.81

3.9

500 Vac

15

ECST1V1308-1070-R

70:1

2.7

1

3.9

500 Vac

15

ECST1V1308-1080-R

80:1

3.5

1.3

3.9

500 Vac

15

ECST1V1308-1100-R

100:1

5.6

2

3.9

500 Vac

15

ECST1V1308-1125-R

125:1

8.7

5.2

3.9

500 Vac

15

ECST1V1308-1150-R

150:1

12.6

6.5

3.9

500 Vac

15

ECST1V1308-1200-R

200:1

22

8

3.9

500 Vac

15

Mechanical parameters, schematic, pad layout (mm)

Dimension

Value

A

11.00 maximum

B

13.00 maximum

C

7.80 maximum

E

0.7

F

0.25 ref

G

0.8 ±0.2

H

2.5 ±0.3

1. Primary current of 15 A causes less than 40°C temperature rise @ +25°C ambient. Higher current causes a greater

temperature rise

2. Electrical specifications at +25 °C

3. Part Number Definition: ECST1V1308-1xxx-R

ECST1V1308 = Product code and size

1xxx= Turns ratio sec:pri; 1=pri, xxx=sec; 1020= 20:1

-R suffix = RoHS compliant

Schematic

Recommended PCB Layout

Part marking: White dot, Pin 1 indicator

All soldering surfaces to be coplanar within 0.15 millimeters

Tolerances are ±0.1 millimeters unless stated otherwise

Traces or vias underneath the inductor is not recommended