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Product Detailed Parameters
- Description：CMC 4.25MH 4A 2LN TH
- Series：7100
- Mfr：Bourns Inc.
- Package：Bulk
- Filter Type：-
- Number of Lines：2
- Current Rating (Max)：4A
- DC Resistance (DCR) (Max)：46mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：-
- Operating Temperature：-55°C ~ 105°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：1.230" Dia x 0.900" W (31.24mm x 22.86mm)
- Height (Max)：1.230" (31.24mm)
- Package / Case：Vertical, No Base, 4 PC Pin
- Inductance @ Frequency：4.25 mH @ 1 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The Bourns 7119-RC is a through-hole common mode choke designed for data line filtering. It features dual windings with an inductance of 4.25 mH and a rated current capacity of 4 A. The component has a maximum DC resistance of 0.046 Ω and operates within a temperature range of -55 °C to 105 °C. Physical dimensions are 30.48 mm in length, 20.32 mm in width, and 30.48 mm in height. It offers high dielectric strength of 1000 Vrms and is mounted on a VW-1 rated header.
Feature Summary
- Dual winding construction for effective common mode noise suppression
- High current handling capability suitable for demanding power applications
- Low radiation design to minimize electromagnetic interference
- Robust dielectric strength ensuring electrical isolation
Applications
- LED driver circuits
- Current control systems
- Overheat protection modules
- Surge and electrostatic discharge mitigation
Procurement Notes
Verify the specific suffix RC against official Bourns documentation to confirm lead-free status and RoHS compliance. Ensure the through-hole mounting style matches the target PCB footprint. Confirm that the 4 A current rating and 4.25 mH inductance align with the circuit requirements before finalizing procurement orders.
Selection Notes
Select this component when high inductance and significant current capacity are required for common mode noise reduction in data lines. The through-hole package provides mechanical stability for industrial environments. Consider the physical size constraints as the unit measures over 30 mm in height and length.
Part Context
This component belongs to the Bourns common mode choke family, specifically engineered for EMI suppression. It utilizes a specialized core material to achieve high inductance values while maintaining low DC resistance. The series is designed for reliability in harsh operating conditions.
Replacement Considerations
Consult official Bourns substitution guides for verified equivalents. Generic replacements may not match the 1000 Vrms dielectric strength or specific inductance tolerance.
