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kasus perusahaan Tentang How to use VIP1‑1A‑06 EMI filter for switching power supply EMC compliance solution

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Miss. Vicky Lee

vip6@szviip.com

86-0755-29170376

19925448748

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How to use VIP1‑1A‑06 EMI filter for switching power supply EMC compliance solution

2026-08-14

EMC Challenges

Failed Class B conducted emissions (peaks at 30MHz‑120MHz)
Susceptibility to grid surge interference, causing power output fluctuation
Required compliance with cULus, CE‑EMC, RoHS & REACH for industrial export

Solution: Integrated VIP1‑1A‑06 IEC inlet EMI Filter

Key Specifications Applied (per VIIP spec sheet Rev4.1):

Input Protection:

Installed VIIP VIP1‑1A‑06 IEC inlet filter, Model Code: B011X0477

‑6A RMS Max @ 115/250VAC for switching power supply main load

‑36dB common‑mode attenuation @1MHz, suppress switching frequency harmonics effectively

‑2000VAC line‑to-ground Hi-pot rating (1min), 1450VDC line-to-line, meets IEC 60950‑1 industrial safety requirements

‑Max leakage current: 0.3mA@115VAC/60Hz; 0.6mA@250VAC/50Hz

‑Operating temperature range: -25°C ~ +100°C

Enhanced Design:

‑Combined with ferrite cores on DC output cables to boost high-frequency noise suppression

‑Optimized filter low-impedance grounding connection to power supply metal chassis

Test Results

Parameter	Pre‑Modification	Post‑Modification (VIP1‑1A‑06)	Standard
Conducted Emission @30MHz	Exceed limit	22dB below limit	EN55032 Class B
Surge Immunity	Output unstable	Pass 2kV surge test	IEC 61000‑4‑5
Line-to-Ground Hi-pot Test	N/A	Pass 2000VAC / 1min	IEC 60950‑1
Line-to-Line Hi-pot Test	N/A	Pass 1450VDC / 1min	IEC 60950‑1

Summary

After integrating VIIP VIP1‑1A‑06 IEC inlet filter (Part No.B011X0477), this industrial switching power supply fully passed cULus, CE‑EMC, RoHS and REACH tests. Grid-side surge noise and switching harmonic interference were well suppressed by the filter’s high CM/DM insertion loss. Stable power output performance was achieved for mass export to EU & North America.

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E-mail

vip6@szviip.com

19925448748

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kasus perusahaan Tentang How to use VIP1‑1A‑06 EMI filter for switching power supply EMC compliance solution

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Kasus-kasus

How to use VIP1‑1A‑06 EMI filter for switching power supply EMC compliance solution

Switching Power Supply Passes EMC Testing with VIIP VIP1‑1A‑06 Filter

EMC Challenges

Solution: Integrated VIP1‑1A‑06 IEC inlet EMI Filter

Test Results

Summary