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DLW21HN121SQ2L is listed in the Common Mode Chokes range at ChipApex. The manufacturer field lists Murata Electronics. Its product description is CMC 280MA 2LN 120 OHM SMD. Review the specifications below when checking this part for your BOM.
Common Mode Chokes specifications for DLW21HN121SQ2L
- Description：CMC 280MA 2LN 120 OHM SMD
- Series：DLW21
- Mfr：Murata Electronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：280mA
- DC Resistance (DCR) (Max)：450mOhm
- Voltage Rating - DC：50V
- 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)：0.039" (1.00mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：-
- Impedance @ Frequency：120 Ohms @ 100 MHz
- Qualification：-
- Grade：-
Common Mode Chokes datasheet and documents for DLW21HN121SQ2L
Common Mode Chokes Overview
The DLW21HN121SQ2L is a wirewound common mode choke coil from the Murata EMIFIL DLW21H series. It features a 0805 (2012 metric) surface mount package with dimensions of 2.0 mm length, 1.2 mm width, and 1.2 mm height. The component provides an impedance of 120 Ohms at a test frequency of 100 MHz with a tolerance of ±25%. It supports a maximum DC current of 280 mA and has a maximum DC resistance of 410 mOhms. The device operates within a temperature range of -40°C to +85°C and is rated for 50V.
Common Mode Chokes Feature Summary
- Wirewound construction for effective common mode noise suppression
- Compact 0805 surface mount footprint for space-constrained designs
- High impedance characteristics at 100 MHz for signal integrity protection
Common Mode Chokes Applications
- Data line filtering in portable electronic devices
- Noise suppression for high-speed digital interfaces
- Common mode interference reduction in compact PCB layouts
Common Mode Chokes Procurement Notes
Verify the specific suffix SQ2L against the manufacturer's latest datasheet to confirm pin configuration and tape/reel specifications. Ensure the ordering part number matches the required impedance and current ratings for the target application circuit. Cross-reference the RoHS compliance status with current regulatory requirements before finalizing procurement.
Common Mode Chokes Selection Notes
Select this component when a 0805 footprint is required for common mode filtering with 120 Ohm impedance at 100 MHz. The 280 mA current rating suits low-power data lines. Consider the unshielded design if magnetic coupling with nearby components is a concern. Verify that the 410 mOhms DC resistance meets the voltage drop constraints of the specific circuit design.
Common Mode Chokes Part Context
This part belongs to the DLW21H series, which offers various impedance values in the 0805 package. It serves as a passive filter component within the broader EMIFIL product line, designed to attenuate electromagnetic interference on differential or single-ended signal lines without affecting the desired signal transmission.
Common Mode Chokes Replacement Considerations
Check for direct substitutes within the DLW21H series with identical 120 Ohm impedance and 0805 dimensions. Verify compatibility with other manufacturers offering 0805 common mode chokes with matching 280 mA ratings and similar impedance curves at 100 MHz.
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