Product Brief

VIP1-1B-03 (Part No. B011X0428) is a 3A single-phase lead-wired EMI power filter rated for 115/250VAC and 50/60Hz global mains supply. It adopts reliable circuit design, featuring low leakage current, high insulation resistance and wide operating temperature range from -25°C to +100°C. With excellent common-mode and differential-mode noise attenuation performance under 50-ohm test system, this filter effectively suppresses AC line conducted interference and protects electronic equipment from grid-borne noise disturbance. It passes strict high-pot test and is suitable for chassis or panel mounting.

Application & Purpose

Application Range

Industrial control equipment, medical electronics, power supply units, test & measurement instruments, office automation devices, communication equipment, household electrical appliances and other single-phase AC powered electronic systems.

Purpose

1. Suppress conducted EMI noise on AC power input lines.
2. Block interference coming from power grid to protect sensitive circuits inside equipment.
3. Prevent noise generated by the equipment itself from feeding back to power mains, helping products meet EMC compliance requirements such as EN55014 and GB9254.
4. Stabilize power supply signal and improve equipment operation reliability.

FAQ

Q1: What is an EMI power filter used for?

A: EMI power filter is designed to suppress AC line conducted noise. It can block interference from the power grid and stop noise generated by your device from polluting mains, helping products pass EMC certification tests.

Q2: How to select the correct current rating for EMI filter?

A: The filter rated current shall be higher than the maximum continuous working current of your equipment. For example, this VIP1-1B-03 model supports max 3A RMS continuous load. Do not overload the filter.

Q3: What does leakage current mean for EMI filter?

A: Leakage current refers to small current flowing from line to ground. It is related to internal Y capacitors. For medical equipment, low leakage current models are required to meet safety standards.

Q4: What is the correct installation method for EMI filter?

A: Mount the filter close to the equipment power inlet. Keep input and output wires separated, avoid parallel routing. Make sure the metal housing has good low-resistance grounding to achieve best noise reduction effect.

Q5: Can one EMI filter work for both 115VAC and 250VAC input?

A: Yes, single-phase EMI filters like VIP1-1B-03 support 115/250VAC wide voltage, suitable for 50/60Hz global single-phase AC power systems. But please do not exceed the rated voltage.