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Product Detailed Parameters
- Description：CMC 3.9MH 1A 2LN TH
- Series：EV
- Mfr：Schaffner EMC Inc.
- Package：Bulk
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：1A
- DC Resistance (DCR) (Max)：168mOhm (Typ)
- Voltage Rating - DC：-
- Voltage Rating - AC：250V
- Operating Temperature：-25°C ~ 100°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.827" L x 0.630" W (21.00mm x 16.00mm)
- Height (Max)：1.024" (26.00mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：3.9 mH @ 400 Hz
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Overview
The Schaffner EV20-1.0-02-3M9 is a through-hole common-mode choke designed for RFI suppression in single-phase circuits. It features a nominal inductance of 3.9 mH and a rated current capacity of 1 A. The component utilizes a two-line configuration suitable for vertical mounting applications. Its construction supports effective noise attenuation in electromagnetic interference environments.
Feature Summary
- Provides common-mode noise suppression for single-phase power lines
- Designed for through-hole PCB mounting with vertical orientation
- Engineered for high saturation resistance to maintain performance under load
Applications
- Single-phase power supply input filtering
- EMI suppression in consumer electronic devices
- Noise reduction in industrial control equipment
Procurement Notes
Verify the specific inductance tolerance and DC resistance values against the official Schaffner datasheet before integration. Confirm that the through-hole footprint dimensions match the target PCB layout. Ensure the 1 A current rating meets the operational requirements of the application circuit to prevent saturation.
Selection Notes
Select this component when a 3.9 mH common-mode choke is required for 1 A single-phase applications. Consider the vertical mounting style and through-hole termination type for assembly compatibility. Evaluate the physical size constraints against the available board space for vertical installation.
Part Context
This part belongs to the Schaffner EV series of common-mode suppression chokes. The series is characterized by its use in general-purpose EMI filtering for AC line applications. The EV20 variant specifically denotes the case size and mounting configuration within the broader product family.
FAQ
What is the mounting style of the EV20-1.0-02-3M9?
It uses a through-hole mounting style designed for vertical installation on printed circuit boards.
Is this component suitable for three-phase applications?
No, it is a two-line (single-phase) common-mode choke and is not designed for three-phase systems.
