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Product Detailed Parameters
- Description：CMC 17.5MH 1.2A 2LN TH
- Series：SSR
- Mfr：KEMET
- Package：Bulk
- Filter Type：-
- Number of Lines：2
- Current Rating (Max)：1.2A
- DC Resistance (DCR) (Max)：270mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：250V
- Operating Temperature：-25°C ~ 120°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.866" L x 0.630" W (22.00mm x 16.00mm)
- Height (Max)：1.063" (27.00mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：17.5 mH @ 10 kHz
- Impedance @ Frequency：-
- Qualification：-
- Grade：-
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Overview
The KEMET SSR21NV-12175 is a through-hole common mode filter choke designed for AC line filtering applications. It features an inductance of 17.5 mH measured at 10 kHz and supports a maximum DC current rating of 1.2 A. The component has a maximum DC resistance (DCR) of 270 mOhms and operates within a temperature range of -25°C to +120°C. Rated for 250 VAC, it utilizes a vertical package with four PC pins for PCB mounting.
Feature Summary
- Provides common mode noise suppression for AC power lines
- Supports through-hole mounting via four PC pins
- Operates reliably across extended industrial temperature ranges
Applications
- AC line input filtering for electronic equipment
- Noise reduction in power supply circuits
- EMI suppression in consumer electronics
Procurement Notes
Verify the specific part number suffix against official KEMET documentation to ensure correct electrical characteristics. Confirm that the required inductance and current ratings align with your circuit design before procurement. Check for any recent product change notices or alternative pin configurations if sourcing from third-party distributors.
Selection Notes
Select this component when a 17.5 mH common mode choke is required for 1.2 A AC line applications. Ensure the PCB layout accommodates the vertical package dimensions and through-hole pin spacing. Verify thermal management requirements given the 270 mOhm DCR and operating temperature limits.
Part Context
This component belongs to the KEMET SSR21NV series of AC line filters. These chokes are engineered for common mode interference suppression in single-phase AC applications. The series offers various inductance values tailored for different current ratings while maintaining compact vertical profiles suitable for space-constrained PCB designs.
Replacement Considerations
The UALN21V1217500 is listed as an alias for this part number. Verify compatibility with other SSR21NV/NH series variants by comparing inductance, current rating, and physical dimensions before substitution.
