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Product Detailed Parameters
- Description：CMC 45UH 2A 2LN TH
- Series：SN
- Mfr：KEMET
- Package：Bulk,Tray
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：2A
- DC Resistance (DCR) (Max)：70mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：-
- Operating Temperature：-25°C ~ 105°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：-
- Height (Max)：0.854" (21.70mm)
- Package / Case：Horizontal, 4 PC Pin
- Inductance @ Frequency：45 µH @ 100 kHz
- Qualification：-
- Grade：-
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Overview
The KEMET SN8D-300JB is a through-hole common mode choke from the SN-JB series, designed for AC line filtering. It features an inductance of 45 µH at 100 kHz and supports a maximum DC current of 2 A. The component has a maximum DC resistance (DCR) of 70 mΩ per line. It utilizes a vertical package with two pins, measuring 18.5 mm in length, 15.5 mm in width, and 20 mm in height. The operating temperature range spans from -25°C to +105°C.
Feature Summary
- Provides common mode noise suppression for AC power lines
- Supports high current applications up to 2 A
- Designed for through-hole PCB mounting
Applications
- AC line filtering in electronic equipment
- Noise suppression in power supply inputs
- EMI reduction in consumer electronics
Procurement Notes
Verify the specific suffix JB against official KEMET documentation to confirm pin configuration and tolerance specifications. Ensure the selected variant matches the required inductance value of 45 µH and current rating of 2 A for the target application. Cross-reference the datasheet for mechanical dimensions to validate PCB footprint compatibility before procurement.
Selection Notes
Select this component when a 45 µH inductance is required for common mode noise attenuation in AC circuits. The 2 A current rating suits moderate power applications. Verify that the through-hole mounting style and vertical orientation fit the mechanical constraints of the design. Confirm the 70 mΩ DCR meets efficiency requirements for the specific circuit path.
Part Context
This part belongs to the KEMET SN-JB series of iron-core common mode chokes. These components are engineered for general-purpose EMI filtering in AC line applications. The series offers various inductance values and current ratings to accommodate different power levels and noise profiles in standard electronic assemblies.
Replacement Considerations
Direct substitutes must match the 45 µH inductance, 2 A current rating, and 70 mΩ DCR. Verify compatible through-hole packages with identical or compatible pin spacing. Check for equivalent temperature ranges and core material characteristics to ensure similar performance in noise suppression.
