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  • NSI8221W1D isolator chip location on Antminer APW17 power supply board
  • NSI8221W1D dual-channel digital isolator IC for Antminer APW17 PSU
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NSI8221W1D Dual-Channel Digital Isolator for Antminer APW17 PSU Repair

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About the Product

NSI8221W1D High-Reliability Digital Isolator for Antminer APW17 Power Supply

The NSI8221W1D is a high-performance, dual-channel digital isolator specifically used in the Antminer APW17 power supply. It is designed to replace damaged or unstable isolation components, ensuring reliable signal transmission and enhanced electrical safety between high-voltage and low-voltage sections of the PSU.

High-Speed, High-Isolation Digital Signal Protection

The NSI8221W1D supports data rates up to 150 Mbps and delivers an industry-leading common-mode transient immunity (CMTI) of 250 kV/μs. This ensures stable signal integrity even under extreme switching noise conditions commonly found in high-power mining power supplies.

NSI8221W1D Technical Specifications

Parameter Specification
Isolation Voltage 5000 Vrms
Data Rate DC to 150 Mbps
Supply Voltage 2.5V – 5.5V
Common-Mode Transient Immunity (CMTI) 250 kV/μs
Propagation Delay < 15 ns
Power Consumption 1.5 mA/channel @ 1 Mbps
ESD Protection ±8 kV HBM
Isolation Surge Voltage > 10 kV
Operating Temperature -55°C to +125°C
Channels Dual Channel
Primary Application Antminer APW17 PSU Isolation Repair

Typical Applications

  • Antminer APW17 power supply digital isolation repair
  • High-voltage SMPS signal isolation
  • ASIC miner PSU maintenance and refurbishment
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United States (DDP):
Orders shipped to the US are delivered DDP (Delivered Duty Paid). All customs duties, import taxes, and fees are included — no additional charges on delivery.

International (outside the US):
Orders ship from China. Depending on your country, local customs authorities may apply import duties or taxes. Any such fees are set by your local authorities and are not included in the product price.

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