# Common Mode Choke, ACM-21 Series, 90 ohm, 400 mA, 2 mm x 1.2 mm x 1.2mm

![Product image](https://novapart.co/image/farnell:4142803/)

**URL**: https://novapart.co/products/ACM21-900M-T/common-mode-choke-acm-21-series-90-ohm-400-ma-2-mm
**SKU**: ACM21-900M-T
**Manufacturer**: ABRACON
**Category**: Passive Components || EMC / RFI Suppression || Common Mode Chokes / Filters || SMD Common Mode Chokes / Filters
**Price**: €0.1330
**Stock**: 500+
**Lead Time**: 106 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| Impedance | 90ohm |
| Inductance | - |
| Product Range | ACM-21 Series |
| Product Width | 1.2mm |
| Qualification | - |
| Product Height | 1.2mm |
| Product Length | 2mm |
| Dc Current Rating | 400mA |
| Dc Resistance Max | 0.3ohm |
| Inductor Case / Package | 0805 [2012 Metric] |
| Operating Temperature Max | 85°C |
| Operating Temperature Min | -40°C |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4142803/)

2.0 x 1.2 x 1.2mm | | | | | | | | | | | | | | | 

## **Chip Wire Wound Common Mode Choke** ACM-21 —_ 

## **RoHS Pb** © **Compliant** 

## __— **APPLICATIONS:** 

- Small size with ferrite base 

- Two line type wire wound 

- High common-mode impedance at noise band and low differential-mode impedance at signal band 

   - EMI and Noise Suppression 

   - USB Line Filter for Personal Computers and Peripheral 

   - IEEE 1394 Line for Personal Computers, DVC, STB 

   - Low-Voltage Differential Signal (LVDS) for LCD panels 

- Suitable for high-speed signal. 

|**Part Number**|**Z**|**DCR**|**IDC**|**Rated**<br>**Voltage**|**Withstanding**<br>**Voltage**|**Insulation**<br>**Resistance**|
|---|---|---|---|---|---|---|
|**Units**<br>~~eee~~|**Ω ± 20%**<br>|<br>~~eee~~|**Ω(max.)**<br>~~eee~~|**mA**<br>~~eee~~|**Vdc**<br>|<br>~~eee~~|**Vdc**<br>~~eee~~|**MΩ(min.)**<br>~~eee~~|
|ACM-21-300<br>~~eee~~<br>~~a~~|30<br>|<br>~~eee~~<br>~~Rs~~|0.20<br>~~eee~~|450<br>~~eee~~|50<br>|<br>~~eee~~|125<br>~~eee~~|10<br>~~eee~~|
|ACM-21-670<br>~~eee~~<br>~~a~~|67<br>~~eee~~<br>~~Rs~~|0.25<br>~~eee~~|400<br>~~eee~~|50<br>~~eee~~|125<br>~~eee~~|10<br>~~eee~~|
|ACM-21-900<br>~~eee~~<br>~~a~~|90<br>~~eee~~<br>~~Rs~~|0.30<br>~~eee~~|400<br>~~eee~~|50<br>~~eee~~|125<br>~~eee~~|10<br>~~eee~~|
|ACM-21-121<br>~~a~~<br>~~SEE~~|120<br>~~Rs~~<br>~~SEE~~|0.30<br>~~SEE~~|370<br>~~SEE~~|50<br>~~SEE~~|125<br>~~SEE~~|10<br>~~SEE~~|
|ACM-21-161<br>~~SEE~~|160<br>~~SEE~~|0.35<br>~~SEE~~|330<br>~~SEE~~|50<br>~~SEE~~|125<br>~~SEE~~|10<br>~~SEE~~|
|ACM-21-181<br>~~pf~~|180<br>~~pf~~|0.35|330<br>~~a~~|50|125|10|
|ACM-21-201<br>~~eG~~<br>~~es~~|200<br>~~eG~~<br>~~es~~|0.35<br>~~eG~~<br>~~ee~~|330<br>~~eG~~<br>~~ee~~|50<br>~~eG~~|125<br>~~eG~~<br>~~eee~~|10<br>~~eG~~<br>~~eee~~|
|ACM-21-221<br>~~es~~<br>~~ee~~|220<br>~~es~~|0.35<br>~~ee~~|330<br>~~ee~~|50|125<br>~~eee~~|10<br>~~eee~~|
|ACM-21-261<br>~~es~~<br>~~ee~~|260<br>~~es~~|0.40<br>~~ee~~|300<br>~~ee~~|50|125<br>~~eee~~|10<br>~~eee~~|
|ACM-21-361<br>~~es~~<br>~~ee~~<br>~~es~~|360<br>~~es ~~|0.40<br> ~~ee ~~|280<br> ~~ee~~<br>~~a~~|50|125<br>~~eee~~|10<br>~~eee~~|
|ACM-21-371<br>~~ee~~<br>~~es~~|370|0.40<br>~~ee~~|280<br>~~a~~<br>~~ee~~|50<br>~~ee~~|125<br>~~ee~~|10<br>~~ee~~|



## **Test Conditions** 

**Impedance:** LCR Meter HP 4291B, 100MHz 

**DCR:** Micro-Ohm meter (GOM-801G) 

**Withstand Voltage (VDC):** 125Vdc, 60 sec, 0.5mA **Rated Voltage (VDC):** 50Vdc, 1 – 5 sec **Insulation Resistance (I.R):** 1mA, 1 min **PART IDENTIFICATION:** —— SS ACM-21 -            M - 

**Impedance Code Packaging** Please refer to the Blank: bulk table above T: Tape and Reel (2k pcs/reel) 

Visit www.abracon.com for Terms & Conditions of Sale **Revised: 01.27.14** 30332 Esperanza, Rancho Santa Margarita, California 92688 tel 949-546-8000 | fax 949-546-8001 | www.abracon.com 

**ABRACON IS** ISO 9001 / QS 9000 ISO 9001:2008 **CERTIFIED** ey 27CORPORATION 

2.0 x 1.2 x 1.2mm **Compliant** | | | | | | | | | | | | | | | 

## **Chip Wire Wound Common Mode Choke** ACM-21 

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RoHS<br>Pb<br>**----- End of picture text -----**<br>


## **ELECTRICAL CHARACTERISTIC CURVE:** a:i 

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**----- Start of picture text -----**<br>
ACM-21-161<br>[|<br>**----- End of picture text -----**<br>


Visit www.abracon.com for Terms & Conditions of Sale **Revised: 01.27.14** 30332 Esperanza, Rancho Santa Margarita, California 92688 tel 949-546-8000 | fax 949-546-8001 | www.abracon.com 

**ABRACON IS** ISO 9001 / QS 9000 ISO 9001:2008 **CERTIFIED** 

**Chip Wire Wound Common Mode Choke** ACM-21 

**RoHS Pb** 2.0 x 1.2 x 1.2mm **Compliant** | | | | | | | | | | | | | | | 

## **ELECTRICAL CHARACTERISTIC CURVE:** > 

**==> picture [46 x 6] intentionally omitted <==**

**----- Start of picture text -----**<br>
ACM-21-201<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
ACM-21-261<br>fT<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
ACM-21-221<br>1000 __ |<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
ACM-21-361<br>:======——__———=====,<br>**----- End of picture text -----**<br>


**==> picture [46 x 6] intentionally omitted <==**

**----- Start of picture text -----**<br>
ACM-21-371<br>**----- End of picture text -----**<br>


Visit www.abracon.com for Terms & Conditions of Sale **Revised: 01.27.14** 30332 Esperanza, Rancho Santa Margarita, California 92688 tel 949-546-8000 | fax 949-546-8001 | www.abracon.com 

**ABRACON IS** ISO 9001 / QS 9000 ISO 9001:2008 **CERTIFIED** | y = NR 

ACM-21 

**RoHS** 2.0 x 1.2 x 1.2mm **Compliant** | | | | | | | | | | | | | | | 

## **Chip Wire Wound Common Mode Choke** 

## **Pb** 

## **OUTLINE DIMENSIONS:** aT 

**Recommended Land Pattern** 

|**A**|**B**||**C**|**E**|**F**|**G**|
|---|---|---|---|---|---|---|
|**2.0±0.2**|**1.2±0.2**||**1.2±0.2**|**0.45**|**1.2**|**0.4**|
||**Schematic**||**Schematic**|**Schematic**|**Schematic**||



|**H**|**I**|**J**|**K**|
|---|---|---|---|
|**0.8**|**0.4**|**0.4**|**0.90**|



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DOW AAT?<br>**----- End of picture text -----**<br>


## **REFLOW PROFILE:** ———> ©) 

**==> picture [222 x 15] intentionally omitted <==**

**----- Start of picture text -----**<br>
220 _________ Heatup mate = sis ote<br>**----- End of picture text -----**<br>


Visit www.abracon.com for Terms & Conditions of Sale **Revised: 01.27.14** 30332 Esperanza, Rancho Santa Margarita, California 92688 tel 949-546-8000 | fax 949-546-8001 | www.abracon.com 

**ABRACON IS** ISO 9001 / QS 9000 ISO 9001:2008 **CERTIFIED** ee 

ACM-21 

**RoHS** 2.0 x 1.2 x 1.2mm **Compliant** | | | | | | | | | | | | | | | 

## **Chip Wire Wound Common Mode Choke** 

**==> picture [18 x 12] intentionally omitted <==**

**----- Start of picture text -----**<br>
Pb<br>**----- End of picture text -----**<br>


**==> picture [248 x 20] intentionally omitted <==**

**----- Start of picture text -----**<br>
TAPE & REEL: 2000pcs/reel<br>a<br>**----- End of picture text -----**<br>


|**A**|**B**|**W**|**E**|**F**|**P0**|**P1**|**P2**|**ΦD0**|**t**|
|---|---|---|---|---|---|---|---|---|---|
|1.40±0.10|2.55±0.05|8.0±0.20|1.75±0.10|3.5±0.10|4.00±0.10|4.00±0.10|2.00±0.10|1.50+0.10|1.35±0.10|



|**ΦA**|**ΦB**|**ΦC**|**W**|**T**||
|---|---|---|---|---|---|
|178±2.0|60±0.5|13±0.3|9+0.3|11.4±1.0||
||||||**Dimension: mm**|



**ATTENTION:** Abracon Corporation’s products are COTS – Commercial-Off-The-Shelf products; suitable for Commercial, Industrial and, where designated, Automotive Applications. Abracon’s products are not specifically designed for Military, Aviation, Aerospace, Life-dependant Medical applications or any application requiring high reliability where component failure could result in loss of life and/or property. For applications requiring high reliability and/or presenting an extreme operating environment, written consent and authorization from Abracon Corporation is required. Please contact Abracon Corporation for more information. 

Visit www.abracon.com for Terms & Conditions of Sale **Revised: 01.27.14** 30332 Esperanza, Rancho Santa Margarita, California 92688 tel 949-546-8000 | fax 949-546-8001 | www.abracon.com 

**ABRACON IS** ISO 9001 / QS 9000 ISO 9001:2008 **CERTIFIED** 



## Links

- [View this product on Novapart](https://novapart.co/products/ACM21-900M-T/common-mode-choke-acm-21-series-90-ohm-400-ma-2-mm)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/abracon/acm21-900m-t/common-mode-choke-90-ohm-0-4a/dp/4142803)
---

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