CW1B-10A EMI Power Filter – 10A, 115/250V AC, Single Phase, Metal Case

The CW1B-10A-L is a single-phase EMI power line filter rated for 10A at 115/250V AC and 50/60 Hz, housed in a compact metal case measuring approximately 5 × 4.5 × 2 cm. It is designed to suppress both common-mode and differential-mode electromagnetic interference on AC mains lines, preventing continuous and intermittent pulse noise from disturbing sensitive electronic equipment. The filter uses capacitive, inductive, and resistive elements to attenuate high-frequency noise, so connected devices receive cleaner and more stable power. Its universal, compact form factor makes it easy to install in existing equipment, and the metal enclosure provides mechanical protection and shielding. Typical applications include telecommunications equipment, computer motherboards, AC adapters, laser equipment, UPS systems, inverter-driven appliances, medical equipment with low leakage current requirements, treadmills, and other digital devices where switching power supplies generate interference. The model is part of the CW1B-(1~10)A-L series, which uses wire-lead terminations; the load side provides three wires, with the center wire connected to the metal case for grounding, while the other two carry phase and neutral. This CW1B-10A EMI filter is a practical component for reducing electromagnetic interference and maintaining reliable operation in both household and industrial AC power systems.

1. Telecommunications equipment and data communication devices.
2. Computer motherboards and AC adapters.
3. Laser equipment and industrial control systems.
4. UPS systems and inverter-driven household appliances.
5. Medical equipment requiring low leakage current.
6. Treadmills and other motor-driven fitness machines.
7. General digital devices with switching power supplies needing interference suppression.

1. Model: CW1B-10A-L.
2. Filter type: single-phase EMI power line filter.
3. Rated voltage: 115/250V AC.
4. Working frequency: 50/60 Hz.
5. Rated current: 10A.
6. Housing material: metal.
7. Dimensions (L × W × H): approximately 5 × 4.5 × 2 cm (source listing; a comparable listing states 6 × 5 × 2 cm).
8. Termination: wire leads (CW1B-…-L series); load side has three wires with the center wire connected to the metal case for grounding.
9. Filtering: common-mode and differential-mode noise suppression using capacitors, inductors, and resistors.
10. Withstand voltage (line to line): 1450V DC / 2 s (per distributor listings); a manufacturer page for the CW1B series states 1500V DC.
11. Withstand voltage (line to ground): 1500V DC / 2 s (per distributor listings); the manufacturer page states 2000V AC.
12. Climate category: 25/85/21 (per manufacturer series data).
13. Certifications: CE, FCC, RoHS (per marketplace listing; not stated on the source page).
14. Net weight: approximately 100 g (per marketplace packaging data; not confirmed on the source page).