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DLW21SN491XQ2L is listed in the Common Mode Chokes range at ChipApex. The manufacturer field lists Murata Electronics. Its product description is CMC 190MA 2LN 490 OHM SMD. Review the specifications below when checking this part for your BOM.
Common Mode Chokes specifications for DLW21SN491XQ2L
- Description：CMC 190MA 2LN 490 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)：190mA
- DC Resistance (DCR) (Max)：770mOhm
- 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：490 Ohms @ 100 MHz
- Qualification：-
- Grade：-
Common Mode Chokes datasheet and documents for DLW21SN491XQ2L
Common Mode Chokes Overview
The DLW21SN491XQ2L is a single-channel common mode choke from the Murata EMIFIL DLW21S series, designed for surface mount technology in 0805 (2012 metric) packages. It exhibits an impedance of 490 Ohms with a tolerance of ±25% and supports a maximum DC current of 190 mA. The component features a maximum DC resistance of 770 mOhms and operates within a temperature range of -40°C to +85°C.
Common Mode Chokes Feature Summary
- Provides common mode noise suppression through wirewound construction
- Designed for high-density PCB mounting in compact 0805 footprints
- Engineered for automotive reliability with AEC-Q200 qualification
Common Mode Chokes Applications
- Automotive infotainment system signal line filtering
- High-speed data interface noise suppression
- General electronic circuit EMI mitigation
Common Mode Chokes Procurement Notes
Verify the specific suffix 'SN' against project requirements, as it denotes standard operating temperature limits compared to other variants. Confirm package dimensions match the target footprint. Ensure supply chain sources provide original manufacturer documentation to validate authenticity and traceability before integration into production schedules.
Common Mode Chokes Selection Notes
Select this component when a 490 Ohm impedance at 100 MHz is required for single-line noise reduction. The 190 mA current rating suits low-power signal lines rather than power delivery paths. Consider the unshielded design if magnetic interference from adjacent components is not a primary constraint in the layout.
Common Mode Chokes Part Context
This part belongs to the DLW21 family of miniature common mode chokes manufactured by Murata Electronics. The series utilizes proprietary wirewound technology to achieve high impedance in small form factors. The DLW21SN variant specifically targets applications requiring standard industrial or automotive temperature ranges within the 0805 package size.
Common Mode Chokes Replacement Considerations
The DLW21SZ491XQ2L serves as a verified substitute offering identical electrical characteristics but with an extended operating temperature range up to +105°C. Verify that the thermal management strategy accommodates the higher temperature capability if replacing the SN variant.
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