--- type: product schema_version: 1 stock_number: "74046-7" canonical_url: "https://www.artisantg.com/74046-7/K-L-Microwave-8IL41-417-7-U621-1-0-0" json_url: "https://www.artisantg.com/74046-7/K-L-Microwave-8IL41-417-7-U621-1-0-0.json" generated_at: "2026-11-07T10:22:23.012Z" last_updated: "2026-10-14T13:00:51.160-05:00" --- # MPG / K&L Microwave 8IL41-417.7/U621.1-0/0 Microminiature Lowpass Filter _Summary and Categories are this item's record. The description sections and FAQ are machine-assisted and can contain errors; where they disagree with the record, the record is correct, and where description sections disagree with each other, Details wins._ ## Summary - Manufacturer: K&L Microwave - Model: 8IL41-417.7/U621.1-0/0 - Condition: Used and in Excellent Condition - Price: $110.00 USD - Availability: In stock, 2 available - Warranty: 1-Year Warranty with 30-Day Return Guarantee - ITAR restricted: No - Shipping weight: 1 lb, estimated - Shipping dimensions: 8X8X3 in, estimated ## Categories - Test Equipment > Electrical Test > Signal Conditioning (primary) ## Details ### Configuration - Number of Sections: 8 - Series: I-Microminiature - L-Lowpass - Package Designator: Style 4 - Cut-Off Frequency: 417.7 MHz - Supplemental Codes: One dB Bandwidth - Upper Frequency Stopband Limit: 621.1 MHz - Input Connector: SMA Female - Output Connector: SMA Female ## Function This lowpass filter is engineered to pass signal frequencies below a designated cutoff frequency with minimal attenuation, while significantly attenuating and rejecting frequencies above this threshold. Its primary function is to suppress unwanted high-frequency components, noise, or spurious signals, thereby ensuring spectral purity and signal integrity in sensitive electronic systems. ## Platform Filters unwanted high-frequency signals while allowing lower frequencies to pass, reducing noise and interference in sensitive electronic circuits. Designed for integration into compact RF and microwave systems, including communication devices, test equipment, and military applications, where space and weight are critical. ## Application This microminiature lowpass filter is designed for signal conditioning in RF communication systems, providing harmonic and spurious signal suppression with cutoff frequencies at 417.7 MHz and upper frequency stopband limit at 621.1 MHz. It offers high rejection in the stopband while maintaining low insertion loss in the passband, making it ideal for mobile communications equipment, military radios, satellite communications terminals, wireless infrastructure, and test instrumentation where signal purity is critical. The filter's microminiature form factor supports integration in space-constrained applications requiring surface mount or drop-in mounting on densely populated circuit boards. ## Images - - - -