# ACM2012-900-2P-T002 (Component) ## Description 2 Line Common Mode Choke Surface Mount 90 Ohms @ 100 MHz 400mA DCR 190mOhm The ACM2012-900-2P-T002, manufactured by TDK, is a 2-line common mode filter that helps reduce electromagnetic interference (EMI) and radio-frequency interference (RFI) in electronic systems. It is built using a wire-wound chip structure and optimized for high-speed differential signals while maintaining low impact on the desired signal. Key Characteristics Component Type: Common Mode Choke / EMI Filter Lines: 2-line (for differential signal pairs) Impedance: 90 Ω @ 100 MHz Current Rating: up to 400 mA DC Resistance: ~190 mΩ max Voltage Rating: up to 50 V Package Size: 0805 (2.0 × 1.2 mm) Mounting: Surface Mount (SMD) Function Suppresses common-mode noise on signal lines Maintains low differential impedance, so signal integrity is preserved Helps systems pass EMI/EMC compliance In simple terms: It filters out noise without affecting the actual data signal. Typical Applications USB, HDMI, Ethernet lines High-speed communication interfaces Embedded systems and IoT devices Consumer electronics and industrial equipment LVDS and display interfaces #CommonPartsLibrary #Filter #ACM ## Component Details - **Owner:** adrian95 - **Created:** 4/24/2026 - **Last Updated:** 4/24/2026 - **Visibility:** Public - **Part Type:** Common Mode Filters - **Package or Case Code:** FILTER-SMD_4P-L2.0-W1.2-TL_ACM2012E - **License:** https://creativecommons.org/licenses/by/4.0/ - **Manufacturer Name:** TDK - **Datasheet URL:** https://product.tdk.com/en/system/files/dam/doc/product/emc/emc/cmf_cmc/catalog/cmf_commercial_signal_acm2012_en.pdf - **Manufacturer Part Number:** https://product.tdk.com/en/system/files/dam/doc/product/emc/emc/cmf_cmc/catalog/cmf_commercial_signal_acm2012_en.pdf - **Part Type:** EMI / RFI Components - **Manufacturer:** TDK - **MPN:** https://product.tdk.com/en/system/files/dam/doc/product/emc/emc/cmf_cmc/catalog/cmf_commercial_signal_acm2012_en.pdf - **Mount Type:** Surface Mount - **Package / Case Code:** KEY-SMD - **Pin Count:** 4 ## Pins | Pin | Name | Type | |-----|------|------| | 1 | 1 | | | 2 | 2 | | | 3 | 3 | | | 4 | 4 | | --- *Generated from [https://www.flux.ai/adrian95/acm2012-900-2p-t002~ay8](https://www.flux.ai/adrian95/acm2012-900-2p-t002~ay8)*