The X2-104K-275VAC is an X2-class safety film capacitor commonly used for EMI/RFI suppression across AC mains lines in power supplies, appliances, chargers, and industrial equipment. It is designed to safely operate directly across line-to-neutral AC connections and withstand voltage surges and transients on the mains. Key Features Capacitance: 100nF (0.1µF / 104 code) Rated Voltage: 275VAC Safety Class: X2 suppression capacitor Tolerance: ±10% (“K” tolerance code) Operating Temperature: -40°C to +110°C Through-hole radial package Self-healing polypropylene film construction High surge and impulse voltage capability Flame-retardant and safety-certified design Suitable for EMI noise suppression across AC mains Typical Applications AC line filtering SMPS input filtering Appliance EMI suppression Motor noise suppression Snubber and interference suppression circuits Across-the-line mains applications Part Marking Breakdown X2 → Safety capacitor class for across-the-line AC applications 104 → 100nF capacitance code K → ±10% tolerance 275VAC → Rated continuous AC voltage

100uF 25V 300mΩ ±10% CASE-X-7343-43(mm) Tantalum Capacitors ROHS Higher voltage ratings and tighter tolerance product including ESR may be substituted within the same size at KEMET's option. Voltage substitution will be marked with the higher voltage rating. Substitutions can include better than series. T491X107K025AT CAP-SMD_L7.3-W4.3-RD LCSC Part Number: C132558 JLCPCB Part Class: Extended Part Manufactured by KEMET(基美)

220uF 10V 900mΩ@100kHz ±10% CASE-C-6032 Tantalum Capacitors ROHS Higher voltage ratings and tighter tolerance product including ESR may be substituted within the same size at KEMET's option. Voltage substitution will be marked with the higher voltage rating. Substitutions can include better than series. T491C227K010AT CAP-SMD_L6.0-W3.2-R-RD LCSC Part Number: C122293 JLCPCB Part Class: Extended Part Manufactured by KEMET(基美)

CONN HEADER 40POS DL STR GOLD 3M 303 Series, 2.54mm Pitch 40 Way 2 Row Shrouded Straight PCB Header, Through Hole, Solder Termination 3M 303 Series low-profile board-to-board/socket header connector with 2.54 mm (0.100") pitch, available in straight and right-angle versions. Designed as a low-cost, rugged female header solution for PCB interconnection in embedded systems, development boards, industrial electronics, communication equipment and general-purpose electronic assemblies. Features brass contacts with nickel underplating and gold flash contact finish, glass-filled polyester (PBT) housing rated UL94V-0, orientation marking triangle, end windows for alignment, and compatibility with standard 0.64 mm (0.025") square pin headers. Rated for 1 A current, 500 V insulation withstand voltage, and operation from -55°C to +105°C. Search Keywords: 3M 303 Series, low profile header, female header connector, 2.54mm socket header, 0.100 inch connector, board to board connector, PCB socket connector, right angle header, straight header connector, through hole socket strip, gold flash socket header, 3M header connector, female pin header, electronic connector, embedded system connector Hashtags: #3M #303Series