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Product Detailed Parameters
- Description：LINE FILTER 250VAC 20A CHASS MNT
- Series：SF
- Mfr：Astrodyne TDI
- Package：Box
- Filter Type：Single Phase
- Configuration：Two Stage
- Voltage - Rated DC：-
- Voltage - Rated AC：250V
- Current：20 A
- Frequency - Operating：50/60Hz
- Applications：General Purpose
- Approval Agency：CE, CSA, cURus, SEMKO
- Operating Temperature：-
- Mounting Type：Chassis Mount
- Termination Style：Threaded Post (8-32)
- Inductance：-
- Voltage - Rated AC (Phase to Ground/Neutral)：-
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Overview
The Astrodyne TDI SF20AL is a single-phase, two-stage EMI/EMI power line filter module designed for high-performance switching mode applications. It supports a rated current of 20 A and operates at voltages up to 250 VAC across 50 Hz and 60 Hz frequencies. The unit utilizes threaded post termination with an 8-32 thread specification for secure mounting. With a compact form factor measuring 165.1 mm in length and featuring low leakage characteristics, it provides effective noise suppression for sensitive electronic equipment requiring robust electromagnetic interference protection.
Feature Summary
- Two-stage filtering architecture for enhanced noise attenuation
- Threaded post termination configuration for reliable chassis integration
- Optimized for high-performance switch mode power supply environments
Applications
- Switching mode power supplies
- General purpose industrial electronics
- Sensitive medical or laboratory instrumentation
Procurement Notes
Verify the specific datasheet version and compliance certifications prior to procurement. Confirm that the 8-32 threaded post interface matches your chassis mounting hardware. Ensure the operating voltage does not exceed 250 VAC and the continuous current load remains within the 20 A rating to maintain component integrity and safety standards.
Selection Notes
Select this model when a single-phase, two-stage solution is required for 20 A circuits. The threaded post design suits applications where stud mounting is preferred over PCB soldering. Verify that the physical dimensions accommodate the available enclosure space and that the frequency range covers the system's operational bandwidth.
Part Context
This component belongs to the SF Series of power line filter modules from Astrodyne TDI. The series focuses on providing compact, high-efficiency EMI suppression for various industrial and commercial power systems. The SF20AL represents a standard offering within this lineup, balancing performance with ease of mechanical integration through its dedicated mounting style.
Replacement Considerations
Consult official manufacturer substitution guides for verified equivalents. Generic cross-references may differ in termination type or stage configuration. Ensure any substitute maintains the two-stage topology and compatible voltage ratings.
