2

Technical Data ELX1185

Effective April 2022

ECST1V0504

SMT current sense transformer

www.eaton.com/electronics

Product specifications

Part number3

Turns ratio

sec:pri

Secondary

inductance (µH)

@ 100 kHz 0.1 V

minimum

DCR sec (Ω)

maximum

DCR pri (mΩ)

reference

Hi-pot pri to sec

@ 2 mA 3 seconds

50 Hz

Sensed

current1 (A)

maximum

ECST1V0504-1020-R

20:1

33

0.35

3

500 Vac

7

ECST1V0504-1030-R

30:1

74

0.8

3

500 Vac

7

ECST1V0504-1040-R

40:1

132

1.6

3

500 Vac

7

ECST1V0504-1050-R

50:1

205

2.5

3

500 Vac

7

ECST1V0504-1060-R

60:1

295

3.6

3

500 Vac

7

ECST1V0504-1070-R

70:1

400

4.6

3

500 Vac

7

ECST1V0504-1100-R

100:1

820

9.5

3

500 Vac

7

ECST1V0504-1125-R

125:1

1280

13

3

500 Vac

7

ECST1V0504-1150-R

150:1

1800

21

3

500 Vac

7

Mechanical parameters, schematic, pad layout (mm)

Dimension

Value

A

4.80 maximum

B

3.65 maximum

C

3.55 maximum

E

0.4

F

0.85

G

2.10

H

2.50

1. Primary current of 7 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: ECST1V0504-1xxx-R

ECST1V0504 = 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