Current Sense Transformer EATON ECSTA1V0703-1070-R for Switching Power Supplies and Feedback Control
ECST1V0504 SMT Current Sense Transformer
The ECST1V0504 is an SMT current sense transformer designed for various power electronics applications. It features a compact EE4.4 SMT package, very low DC resistance, and a wide selection of turns ratios. This transformer is rated for a sensed primary current of 7 A and operates within a frequency range of 50 kHz to 1 MHz. Its applications include switching power supplies, feedback control, overload sensing, and load drop/shut down detection. The device is compliant with J-STD-020 for solder reflow temperature and operates in a wide temperature range of -40 C to +125 C.
Product Attributes
- Brand: Eaton
- Product Code: ECST1V0504
- Package: EE4.4 SMT
- Certifications: Pb HALOGEN HF FREE, J-STD-020 compliant
- Moisture Sensitivity Level (MSL): 1
- Origin: USA (implied by "Printed in USA")
Technical Specifications
| Part Number | Turns Ratio (sec:pri) | Secondary Inductance (H) @ 100 kHz, 0.1 V min. | Max. Secondary DCR () | Max. Primary DCR (m) | Hi-pot pri to sec (Vac @ 2 mA, 3 sec, 50 Hz) | Max. Sensed Current (A) |
|---|---|---|---|---|---|---|
| ECST1V0504-1020-R | 20:1 | 33 | 0.35 | 3 | 500 | 7 |
| ECST1V0504-1030-R | 30:1 | 74 | 0.8 | 3 | 500 | 7 |
| ECST1V0504-1040-R | 40:1 | 132 | 1.6 | 3 | 500 | 7 |
| ECST1V0504-1050-R | 50:1 | 205 | 2.5 | 3 | 500 | 7 |
| ECST1V0504-1060-R | 60:1 | 295 | 3.6 | 3 | 500 | 7 |
| ECST1V0504-1070-R | 70:1 | 400 | 4.6 | 3 | 500 | 7 |
| ECST1V0504-1100-R | 100:1 | 820 | 9.5 | 3 | 500 | 7 |
| ECST1V0504-1125-R | 125:1 | 1280 | 13 | 3 | 500 | 7 |
| ECST1V0504-1150-R | 150:1 | 1800 | 21 | 3 | 500 | 7 |
Mechanical Parameters
| Dimension | Value (mm) |
|---|---|
| A | 4.80 maximum |
| B | 3.65 maximum |
| C | 3.55 maximum |
| E | 0.4 |
| F | 0.85 |
| G | 2.10 |
| H | 2.50 |
Packaging Information
| Dimension | Value (mm) |
|---|---|
| W | 12 0.3 |
| P1 | 8.0 0.1 |
| E1 | 1.75 0.1 |
| F | 5.50 0.05 |
| P2 | 2.0 0.05 |
| D0 | 1.5 +0.1/-0 |
| D1 | 1.5 +0.1/-0 |
| B0 | 4.4 0.1 |
| A0 | 4.8 0.1 |
| K0 | 3.5 0.1 |
| P0 | 4.0 0.1 |
| T | 0.35 0.05 |
| A (Reel Diameter) | 330 3.0 |
| N | 100 1.0 |
| C (Reel Width) | 13+0.5/-0.2 |
| W1 | 12.4+2.0/-0.0 |
Note: Supplied in tape and reel packaging, 13 diameter reel (EIA-481 compliant), 2000 parts per reel.
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