ACM-21U-900-T

$0.31

Description：CMC 280MA 2LN 90 OHM SMD
Series：ACM-21U
Mfr：Abracon LLC
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:89f5fc726335 Category: Common Mode Chokes Brand: Abracon LLC

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Product introduction

Product Detailed Parameters

Description：CMC 280MA 2LN 90 OHM SMD
Series：ACM-21U
Mfr：Abracon LLC
Package：Tape & Reel (TR),Cut Tape (CT)
Filter Type：Signal Line
Number of Lines：2
Current Rating (Max)：280mA
DC Resistance (DCR) (Max)：400mOhm
Voltage Rating - DC：20V
Voltage Rating - AC：-
Operating Temperature：-40°C ~ 85°C
Ratings：-
Approval Agency：-
Features：-
Mounting Type：Surface Mount
Size / Dimension：0.079" L x 0.047" W (2.00mm x 1.20mm)
Height (Max)：0.055" (1.40mm)
Package / Case：Horizontal, 4 PC Pad
Inductance @ Frequency：-
Impedance @ Frequency：90 Ohms @ 100 MHz
Qualification：-
Grade：-

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ACM-21U-900-T

Overview

The ACM-21U-900-T is a wirewound common mode choke manufactured by Abracon LLC, designed for surface mount applications in the 0805 package. It features a ferrite core and provides an impedance of 90 Ohms at 100 MHz. The component supports a maximum DC current of 280 mA with a maximum DC resistance of 400 mOhms. It operates within a temperature range of -40°C to +105°C and is rated for 20V.

Feature Summary

Wirewound construction using ferrite core material for effective noise suppression
Designed specifically for high-speed data line protection
Surface mount configuration suitable for automated PCB assembly

Applications

USB 3.0 interface circuits
High-speed digital signal line filtering
Common mode noise reduction in portable electronics

Procurement Notes

Verify the specific suffix 'T' indicates the required tape and reel or cut tape packaging format as per manufacturer specifications. Confirm RoHS compliance status through official documentation before integration. Ensure the 0805 footprint matches the target PCB design constraints. Validate that the 280 mA current rating meets the operational requirements of the application circuit without saturation.

Selection Notes

Select this component when a compact 0805 form factor is required for USB 3.0 or similar high-speed interfaces. The 90 Ohm impedance at 100 MHz targets specific EMI frequencies relevant to these protocols. Consider the 280 mA current limit against peak load requirements. The unshielded design may influence placement relative to sensitive analog components on the board.

Part Context

This part belongs to the Abracon ACM series of chip wire wound common mode chokes. The series offers various impedance and current ratings in standardized packages. The ACM-21U-900-T specifically addresses the needs of modern high-speed data transmission lines requiring minimal profile and reliable noise attenuation.

Replacement Considerations

Consult official Abracon documentation for qualified substitutes. Verify pin compatibility and impedance curves match the original design requirements. Cross-reference package dimensions to ensure mechanical fit.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.