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Product Detailed Parameters
- Description：CMC 8A 4LN 300 OHM SMD
- Series：CM
- Mfr：Laird-Signal Integrity Products
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Power, Signal Line
- Number of Lines：4
- Current Rating (Max)：8A
- DC Resistance (DCR) (Max)：10mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：-
- Operating Temperature：-55°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.300" L x 0.320" W (7.62mm x 8.13mm)
- Height (Max)：0.580" (14.73mm)
- Package / Case：Vertical, 8 Flat Lead
- Inductance @ Frequency：-
- Impedance @ Frequency：300 Ohms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The CM3032V301R-00 is a discontinued common mode choke from the Laird CM series, designed for surface mount PCB installation. It features an 8A rated current and a maximum DC resistance of 10 milliohms. The component provides 200 Ohms impedance at 100 MHz across six lines. Its physical dimensions are 11.94mm in length, 8.13mm in width, and up to 9.70mm in height. The device operates within a temperature range of -55°C to 125°C and utilizes a vertical package with twelve flat leads.
Feature Summary
- Provides common mode noise suppression for power and signal lines
- Supports high current handling capabilities for robust circuit protection
- Utilizes a compact surface mount form factor for efficient board space utilization
Applications
- Power line filtering in electronic systems
- Signal line noise suppression
- Common mode interference reduction in multi-line circuits
Procurement Notes
This specific part number is officially discontinued and no longer manufactured by Laird-Signal Integrity Products. Verification of availability should focus on obsolete stock or direct replacement alternatives rather than new production units. Confirm RoHS compliance status as historical data indicates non-compliance for this variant. Ensure final design decisions account for the lack of future supply continuity.
Selection Notes
Engineers requiring equivalent performance should evaluate active replacements within the same product family. The CM4732V201R-10 is identified as a direct substitute offering similar functional characteristics. Selection criteria must prioritize matching impedance values, current ratings, and physical footprint constraints to ensure seamless integration into existing designs without requiring layout modifications.
Part Context
This component belongs to the Laird CM series of common mode chokes, which are engineered for electromagnetic interference suppression. The series typically offers various line counts and current ratings tailored for diverse signal integrity requirements. As a passive filter element, it plays a critical role in maintaining signal quality by attenuating unwanted common mode noise currents in high-speed digital and power applications.
Replacement Considerations
The CM4732V201R-10 is confirmed as a direct replacement for the CM3032V301R-00. Both components share the same manufacturer lineage and functional purpose. Verify that the replacement meets all mechanical and electrical specifications required by the original design intent.
