4A 10A 20A AC EMI POWER Filter 110V 220V EMC Purify Power RFI DC Isolator Eliminate Sound Noise Audio DAC Amplifier Purification
SPECIFICATIONS
AC EMI POWER Filter: 110v 220v
Brand Name: DYKBmetered
Certification: NONE
Choice: yes
DIY Supplies: Electrical
EMI Audio Decoder Amplifier Purification: Purify Power RFI DC Isolator Noise
Electronic: No
High-concerned chemical: none
Model Number: EMI Audio Decoder Amplifier Purification
Origin: Mainland China
Output Voltage: AC 110V -240V
Semi-finishedproduct: Yes
Size: DC Isolator Noise
Style: Purify Power RFI
Type: AC EMI POWER Filter
4A 10A 20A AC EMI POWER Filter EMC 110V 220V Purify Power RFI DC Isolator Noise Audio Decoder Amplifier Purification
1 . The first stage is the RFI filter DC circuit. Through two pieces 50A bridge stacks and four pieces 35V2200UF capacitors, Filter the DC component of the AC power supply to suppress buzzing caused by saturation of the DC component transformer or increased static current.
2. Differential mode filtering, two differential inductors, differential mode filtering of AC power supply, to suppress medium and high frequency interference.
3. The first-level common mode filter, through the X2 capacitor and common mode inductor, combined into the first-level common mode filter.
4. The second level of common mode filtering, because of the use of two-stage filtering, so the filtering effect is better. In view of the problem of rapid transient group pulse interference with repetition rate of several kilohertz in some users, it can play an inhibitory role.
This module is used in conjunction with a decoder or power amplifier to filter the DC component of the power supply, eliminate and suppress the hum of the transformer, the high-frequency noise in the power supply, purify the power supply, and can significantly improve the sound quality of the power amplifier, enhance the resolution and make the background quiet.
Parameters:
Name: Audio power amplifier EMI power filter
Input Voltage: AC 110V-250V(Max 250V)
Output Voltage: AC 110V-250V
Working Current: 4A/10A/20A
Board Size: 108mm x 50mm (L*W)
⚠️ Critical Notes for Buyers
Component Variability:
"Capacitor brands/specs may vary per batch - actual unit may differ from product images"







- Standard Shipping: Standard Shipping (12–18 Business Days)
- Express Shipping: Expedited Shipping (5–9 Business Days)
- Free Shipping: Orders over $199 qualify automatically
- Tracking: Full tracking number provided for all orders
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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