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Eaton ACE1V2012-681-R impedance-rated Common-Mode Chip Inductor, 220 mA
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Eaton ACE1V2012-681-R impedance-rated Common-Mode Chip Inductor, 220 mA
The ACE1V2012-681-R from Eaton provides see data sheet, reaches 680 ohm ±25%, DCR 0.8 ohm, rated 220 mA.
Technical Data
| Parameter | Rating |
|---|---|
| Parameter | Value |
| Orderable part number | ACE1V2012-681-R |
| Common-mode inductance | see data sheet |
| Common-mode impedance Z | 680 ohm ±25% |
| DCR maximum @ +25 °C | 0.8 ohm |
| Idc maximum | 220 mA |
| Rated voltage | 50 Vdc |
| Insulation resistance | 10 Mohm minimum |
| Withstanding voltage | 125 Vdc |
| Case | 2.0 x 1.2 mm |
| Terminals | SMD, 4-pin |
| RoHS | Compliant (-R suffix) |
Practical Notes
- Common-mode impedance rises with frequency, so the part is chosen by the band it must suppress.
- Differential-mode noise is not addressed by a common-mode choke alone.
- DCR adds to the supply drop — check it against the current budget.
- Winding capacitance sets how well high-frequency noise is blocked.
- At 0.8 ohm DCR, voltage lost across the choke grows with load current.
- Keep the working current under 220 mA; saturation collapses the impedance.
Application Scenarios
Common installation contexts include:
- EV
- automotive
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