# Common Mode Choke, 0.4A, 1.9 ohm, 1.2mm Length, 1mm Width, 0.9mm Height

![Product image](https://novapart.co/image/farnell:4870706RL/)

**URL**: https://novapart.co/products/ACMS-1210U4-1R9T/common-mode-choke-04a-19-ohm-12mm-length-1mm-width
**SKU**: ACMS-1210U4-1R9T
**Manufacturer**: ABRACON
**Category**: Passive Components || EMC / RFI Suppression || Common Mode Chokes / Filters || SMD Common Mode Chokes / Filters
**Price**: €0.2170
**Stock**: 10+
**Lead Time**: 92 days (indicative)

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4870706RL/)

## **Signal Common Mode Chokes ACMS-1210U4** —— 

Request Samples 

## % 

**1.2 x 1.0 x 0.9 mm** Check Inventory **RoHS/RoHS II Compliant MSL Level = 1** 

## **Features** 

- High impedance over high frequency 

- Rated current up to 400 mA 

- 50Vdc rated voltage 

- Compact low-profile package options 

- Operating temperature range: -40°C to +125°C 

## **Applications** 

- Noise suppression in signal transmission line 

- DisplayPort 2.1, HDMI 2.1, USB 3.2™, USB4™, and Thunderbolt™ interfaces 

- Laptops & portable gaming devices 

- Monitors, active cables, docking stations and storage devices 

## **Electrical Specifications** 

|**Part Number***|**Common**<br>**Mode**<br>**Impedance**<br>**(Ω)@100MHz**|**MHz**<br>**Impedance**<br>**Tolerance**|**Cut-off**<br>**Frequency**<br>**(GHz)**|**DCR**<br>**(Ω)**|**Rated**<br>**Current**<br>**(mA)**|**Rated**<br>**Voltage**<br>**(VDC)**|**Withstand**<br>**Voltage**<br>**(VDC)**|**Insulation**<br>**Resistance**<br>**(MΩ)**|
|---|---|---|---|---|---|---|---|---|
||**Typ. **|**%**|**Typ. **|**Max.**|**Max.**|**Max.**|**Max.**|**Min.**|
|ACMS-1210U4-1R9|ACMS-1210U4-1R9<br>1.9|25|18|0.20|400|50|125|10|
|ACMS-1210U4-5R3|ACMS-1210U4-5R3<br>5.3|25|18|0.30|300|50|125|10|
|ACMS-1210U4-300|30.0|25|18|0.20|400|50|125|10|
|ACMS-1210U4-900|90.0|25|18|0.30|300|50|125|10|



*For full orderable part number, please refer to the Part Identification section. 

**Rated Current is based on an Irms temperature rise of 40°C Max.** 

**Operating temperature:** -40°C to +125°C. (including self-temperature rise) **Storage temperture (in original packaging):** -10°C to 40°C, <60% RH Max. **ACMS-1210U4 Series is RoHS Compliant and Pb free.** 

## **Part Identification** 

ACMS-1210U4- **Impedance Code Packaging options** See Electrical Specification table T: Tape and Reel (See Packaging) e.g. 900 for 90Ω B: Bulk 

12117 Bee Caves Rd, Bldg-3, Suite 200 Bee Cave, TX 78738 ABRACON IS **REVISION:  Initial Release** Phone: 512-371-6159 Fax: 512-351-8858 ISO9001-2015 **1/26/2026** For terms and conditions of sales, please visit: CERTIFIED www.abracon.com 

## **Signal Common Mode Chokes** 

## **ACMS-1210U4** 

**1.2 x 1.0 x 0.9 mm** Request Samples Check Inventory 7 **RoHS/RoHS II Compliant MSL Level = 1** 

## **Performance Graphs** 

**==> picture [512 x 431] intentionally omitted <==**

**----- Start of picture text -----**<br>
ACMS-1210U4-1R9 Differential & Common Mode ACMS-1210U4-5R3 Differential & Common Mode<br>1000<br>100<br>100<br>10<br>10<br>1<br>0.1 1<br>5.3DM<br>1.9DM<br>e e G a 5.3CM<br>1.9CM<br>0.01 0.1<br>1 10 100 1000 10000 1 10 100 1000 10000<br>Frequnecy (MHz) Frequnecy (MHz)<br>ACMS-1210U4-300 Differential & Common Mode ACMS-1210U4-900 Differential & Common Mode<br>1000 1000<br>100 100<br>10 10<br>1 1<br>30DM 90DM<br>a Bee t<br>30CM 90CM<br>0.1 0.1<br>1 10 100 1000 10000 1 10 100 1000 10000<br>Frequnecy (MHz) Frequnecy (MHz)<br>Impedance (Ohm)<br>Impedance (Ohm)<br>Impedance (Ohm) Impedance (Ohm)<br>**----- End of picture text -----**<br>


Bee Cave, TX 78738 ABRACON IS **REVISION:  Initial Release** Phone: 512-371-6159 Fax: 512-351-8858 ISO9001-2015 **1/26/2026** For terms and conditions of sales, please visit: CERTIFIED www.abracon.com 

12117 Bee Caves Rd, Bldg-3, Suite 200 Bee Cave, TX 78738 

## **Signal Common Mode Chokes** 

**ACMS-1210U4** 

Request Samples 

Check Inventory 

**1.2 x 1.0 x 0.9 mm RoHS/RoHS II Compliant MSL Level = 1** 

## **Performance Graphs** 

**==> picture [530 x 421] intentionally omitted <==**

**----- Start of picture text -----**<br>
ACMS-1210U4-1R9 ACMS-1210U4-5R3<br>0<br>0<br>-5<br>-5<br>-10<br>-10<br>-15 -15<br>-20 -20<br>-25 -25<br>-30 -30<br>-35<br>-35<br>-40 -40 Sdd21<br>Sdd21<br>-45<br>-45 ab d Scc21<br>Scc21 -50<br>-50<br>1 10 100 1000 10000 100000<br>1 10 100 1000 10000 100000<br>Frequency (MHz)<br>Frequency (MHz)<br>ACMS-1210U4-300 ACMS-1210U4-900<br>0 0<br>-5 -5<br>-10 -10<br>-15 -15<br>-20 -20<br>-25 -25<br>-30 -30<br>-35 -35<br>-40 -40<br>Sdd21 Sdd21<br>-45 -45<br>Scc21 Scc21<br>-50 fe -50 Gag<br>1 10 100 1000 10000 100000 1 10 100 1000 10000 100000<br>Frequency (MHz) Frequency (MHz)<br>dB dB<br>dB dB<br>**----- End of picture text -----**<br>


12117 Bee Caves Rd, Bldg-3, Suite 200 Bee Cave, TX 78738 Phone: 512-371-6159 Fax: 512-351-8858 For terms and conditions of sales, please visit: www.abracon.com 

ABRACON IS **REVISION:  Initial Release** ISO9001-2015 **1/26/2026** CERTIFIED 

## **Signal Common Mode Chokes ACMS-1210U4** Es 

**1.2 x 1.0 x 0.9 mm** Request Samples Check Inventory **RoHS/RoHS II Compliant MSL Level = 1** 

## **Mechanical Specifications** 

## **DIMENSIONS: INCHES [mm]** 

12117 Bee Caves Rd, Bldg-3, Suite 200 Bee Cave, TX 78738 Phone: 512-371-6159 Fax: 512-351-8858 For terms and conditions of sales, please visit: www.abracon.com 

ABRACON IS **REVISION:  Initial Release** ISO9001-2015 **1/26/2026** CERTIFIED 

## **Signal Common Mode Chokes** 

**ACMS-1210U4** a 

Request Samples 

**1.2 x 1.0 x 0.9 mm** Check Inventory **RoHS/RoHS II Compliant MSL Level = 1** 

## **Reflow Profile** 

## **Reflow standard: [JEDEC J-STD-020]** 

## **Table 1** 

|**Table 1**<br>a|**Table 1**<br>a|**Table 1**<br>a|||
|---|---|---|---|---|
|**SnPb Eutectic Process**<br>**Classification Temperatures(Tc)**<br>**Package**<br>**Thickness**<br>**Volume mm3**<br>**<350**<br>**Volume mm3**<br>**>350**<br><2.5 mm<br>235 °C<br>220 °C<br>>2.5 mm<br>220 °C<br>220 °C<br>~~,~~<br>a<br> TPL<br>critical zone<br>‘<br>T,to T,<br>:<br>T,<br>~~-~~|||||
|iz<br>ae||**Table 2**<br>**Pb-Free Process**<br>**Classification Temperatures(Tc)**<br>~~LT~~|||
|||**Package**<br>**Volume mm3**<br>**Volume mm3**||**Volume mm3**|
|||**Thickness**<br>**<350**<br>**350-2000**||**>2000**|
|1<br>SEE||<1.6 mm<br>260 °C<br>260 °C<br>1.6 mm - 2.5<br>mm<br>260 °C<br>250 °C||260 °C<br>245 °C|
|||>2.5 mm<br>250 °C<br>245 °C||245 °C|



|**Profile Feature**|**Sn-Pb Eutectic**<br>**Assembly**|**Pb-Free**<br>**Assembly**|
|---|---|---|
|Preheat/ soak|||
|Temperatureminimum(Tsmin)|100°C|150°C|
|Temperaturemaximum(Tsmax)|150°C|200°C|
|Time (TsmintoTsmax) (ts)|60- 120 sec.|60- 120 sec.|
|Averageramp-uprate (TsmaxtoTP)|3°C/sec.max|3°C/sec.max|
|Liquidoustemperature (TL)|183°C|217°C|
|Timeat liquidous (tL)|60- 150 sec.|60- 150 sec.|
|Peakpackage bodytemperature (TP)*****|**See Table 1**|**See Table 2**|
|Time (tp**)**** within5°C of the specified classification temperature (TC)|20 sec.|30 sec.|
|Ramp-down rate (TptoTsmax)|6°C/sec.max|6°C/sec.max|
|Time25°Cto peak temperature|6min.max|8min.max|
|Reflow cycles|2 max|2 max|



***** Tolerance for peak profile temperature (TP) is defined as a supplier minimum and a user maximum. 

****** Tolerance for time at peak profile temperature (tp) is defined as supplier minimum and a user maximum. 

12117 Bee Caves Rd, Bldg-3, Suite 200 Bee Cave, TX 78738 

Phone: 512-371-6159 Fax: 512-351-8858 For terms and conditions of sales, please visit: www.abracon.com 

ABRACON IS 

**REVISION:  Initial Release** ISO9001-2015 **1/26/2026** CERTIFIED 

## **Signal Common Mode Chokes** 

## **ACMS-1210U4** ee **Packaging** 

**ACMS-1210U4 1.2 x 1.0 x 0.9 mm** Request Samples Check Inventory **RoHS/RoHS II Compliant MSL Level = 1** 

## **Tape & Reel: 3000 pcs/reel** 

|Tape Specifications(mm)|Tape Specifications(mm)|Tape Specifications(mm)|Tape Specifications(mm)|Tape Specifications(mm)|Tape Specifications(mm)|Tape Specifications(mm)|Tape Specifications(mm)|
|---|---|---|---|---|---|---|---|
|Width|Ao|Bo|Do|D1(Min)|E1|F|Ko|
||1.12±0.1|1.40±0.1|1.5+0.1/-0.0|*|1.75±0.1|3.5±0.05|1.05±0.1|
|8mm|P1|P2|P0|T (Max)|T1(Max)|T2(Max)|W (Max)|
||4.0±0.1|2.0±0.05|4.0±0.1|0.22±0.1|*|*|8.1|



|Reel Specifications(mm)|Reel Specifications(mm)|Reel Specifications(mm)|Reel Specifications(mm)|Reel Specifications(mm)|Reel Specifications(mm)|Reel Specifications(mm)|Reel Specifications(mm)|
|---|---|---|---|---|---|---|---|
|Width|Qty/Reel|A (Ref)|B (Min)|C (Min)|D (Min)|N (Ref)|*W1(Ref)|
|8mm|3000|178|1.5|13.0+0.5/-0.2|20.2|60.0|9.0|



ATTENTION: Abracon LLC’s products are Commercial-Off-The-Shelf (COTS, which are designed, intended and validated for use in commercial, industrial and automotive applications. The customer is responsible for testing and verifying the performance of an Abracon solution to meet their system-level requirements. ~~ee~~ 

12117 Bee Caves Rd, Bldg-3, Suite 200 Bee Cave, TX 78738 ABRACON IS **REVISION:  Initial Release** Phone: 512-371-6159 Fax: 512-351-8858 ISO9001-2015 **1/26/2026** For terms and conditions of sales, please visit: CERTIFIED www.abracon.com 



## Links

- [View this product on Novapart](https://novapart.co/products/ACMS-1210U4-1R9T/common-mode-choke-04a-19-ohm-12mm-length-1mm-width)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/abracon/acms-1210u4-1r9t/common-mode-choke-0-4a-1-2-x-1/dp/4870706RL)
---

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