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Product Detailed Parameters
- Description：CMC 280MA 2LN 370 OHM SMD
- Series：SRF2012
- Mfr：Bourns Inc.
- Package：Tape & Reel (TR)
- Filter Type：-
- Number of Lines：2
- Current Rating (Max)：280mA
- DC Resistance (DCR) (Max)：450mOhm
- Voltage Rating - DC：50V
- Voltage Rating - AC：-
- Operating Temperature：-55°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.081" L x 0.049" W (2.05mm x 1.25mm)
- Height (Max)：0.057" (1.45mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：-
- Impedance @ Frequency：370 Ohms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The Bourns SRF2012-371YA is a two-line common mode choke designed for surface mount applications. It provides compact electromagnetic interference (EMI) suppression with an impedance of 370 Ohms at 100 MHz and a rated current of 280 mA. The component features a horizontal package with four PC pads and a DC resistance of 450 mOhm. It is RoHS3 compliant and suitable for space-constrained circuits requiring effective noise filtering.
Feature Summary
- Two-line common mode configuration for effective EMI suppression
- Compact surface mount design for space-constrained applications
- Horizontal package with four PC pads for stable mounting
Applications
- Surface mount electronic circuits requiring compact EMI suppression
- Signal lines needing noise filtering in limited space
- Portable devices with strict size constraints
Procurement Notes
Verify the exact part number suffix, as 'SRF2012-371Y' may refer to the series or base model while 'SRF2012-371YA' denotes the specific RoHS3 compliant variant. Confirm package orientation and terminal count match your PCB footprint requirements. Ensure the 280 mA current rating meets your circuit's operational needs. Check for any specific handling instructions regarding the surface mount technology used.
Selection Notes
Select this component when space is limited and effective common mode noise reduction is required for signal integrity. The 370 Ohm impedance at 100 MHz targets high-frequency interference typical in digital communication lines. Consider the 450 mOhm DC resistance impact on signal loss if driving low-voltage signals. Verify that the 280 mA current rating exceeds the maximum expected line current to prevent saturation.
Part Context
This component belongs to the Bourns SRF2012 series of common mode chip inductors. These are engineered for high-density PCB layouts where traditional through-hole chokes are impractical. The series offers various impedance and current ratings to suit different signal line protection needs across consumer electronics and industrial equipment.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer cross-reference guides for compatible alternatives with matching impedance, current rating, and package dimensions.
