ECST1V0504 SMT Current Sense Transformer
The ECST1V0504 is a surface-mount (SMT) current sense transformer designed for efficient and reliable current monitoring in various electronic applications. It features a compact EE4.4 package, very low DC resistance, and a wide selection of turns ratios. This transformer is rated for a primary sensed current of 7 A and operates across a frequency range of 50 kHz to 1 MHz. Its robust design makes it suitable for demanding applications such as switching power supplies, feedback control, overload sensing, and load drop/shut down detection. The product is compliant with environmental standards, including RoHS and halogen-free requirements, and operates within an extended temperature range of -40 C to +125 C.
Product Attributes
- Brand: Eaton
- Product Code: ECST1V0504
- Package: EE4.4 SMT
- Environmental Compliance: Pb HALOGEN HF FREE, J-STD-020 compliant
- Moisture Sensitivity Level (MSL): 1
- Origin: USA (Publication No. ELX1185)
Technical Specifications
| Part Number | Turns Ratio (sec:pri) | Secondary Inductance (H) @ 100 kHz, 0.1 V min. | Secondary DCR () max. | Primary DCR (m) ref. | Hi-pot pri to sec (Vac @ 2 mA, 3 sec, 50 Hz) | Sensed Current (A) max. | Package Dimensions (mm) (A x B x C) |
|---|---|---|---|---|---|---|---|
| ECST1V0504-1020-R | 20:1 | 33 | 0.35 | 3 | 500 | 7 | 4.8 x 3.65 x 3.55 |
| ECST1V0504-1030-R | 30:1 | 74 | 0.8 | 3 | 500 | 7 | 4.8 x 3.65 x 3.55 |
| ECST1V0504-1040-R | 40:1 | 132 | 1.6 | 3 | 500 | 7 | 4.8 x 3.65 x 3.55 |
| ECST1V0504-1050-R | 50:1 | 205 | 2.5 | 3 | 500 | 7 | 4.8 x 3.65 x 3.55 |
| ECST1V0504-1060-R | 60:1 | 295 | 3.6 | 3 | 500 | 7 | 4.8 x 3.65 x 3.55 |
| ECST1V0504-1070-R | 70:1 | 400 | 4.6 | 3 | 500 | 7 | 4.8 x 3.65 x 3.55 |
| ECST1V0504-1100-R | 100:1 | 820 | 9.5 | 3 | 500 | 7 | 4.8 x 3.65 x 3.55 |
| ECST1V0504-1125-R | 125:1 | 1280 | 13 | 3 | 500 | 7 | 4.8 x 3.65 x 3.55 |
| ECST1V0504-1150-R | 150:1 | 1800 | 21 | 3 | 500 | 7 | 4.8 x 3.65 x 3.55 |
General Specifications
| Parameter | Value |
|---|---|
| Operating Temperature Range | -40 C to +125 C (ambient plus self-temperature rise) |
| Frequency Range | 50 kHz to 1 MHz |
| Solder Reflow Temperature | J-STD-020 (latest revision) compliant |
| Packaging | Tape and reel, 13 diameter reel (EIA-481 compliant), 2000 parts per reel |
2411192348_EATON-ECSTA1V0703-1050-R_C6844236.pdf
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