9003IB Integrated MOS Board for Antminer S19 L7 D7 Hash Boards

9003IB Integrated MOS Board for Antminer S19/L7/D7 Hash Board DC Protection

The 9003IB Integrated Board is a MOSFET-based DC control protection module designed for Antminer S19 series, L7, and D7 hash boards. It replaces failed discrete MOS components on the DC control circuit, providing stable protection for the ASIC chip, LDO circuitry, and DC rails during high-current operation.

By integrating the TPHR9003NL MOSFET with precision resistors into a compact module, the 9003IB enables faster maintenance and improved reliability compared to traditional MOS rework on hash boards.

Key Features

• Integrated MOS + resistor network for simplified repair
• Protects DC control circuit, LDO, and ASIC components
• Reduces soldering complexity and maintenance time
• Compatible with multiple Antminer hash board models
• Efficient thermal dissipation without external heatsinks
• Improved long-term stability and fault prevention

Technical Specifications

Typical Applications

• Antminer hash board repair and refurbishment
• Replacement of failed 9003 MOSFETs
• DC control circuit protection
• ASIC voltage protection enhancements
• Hash board preventive maintenance programs

B2B Supply and Technical Support

We supply components for ASIC miner service centers, repair technicians, distributors, and mining farms worldwide. Our dedicated B2B department supports:

• Bulk and wholesale pricing
• Long-term component supply
• Technical documentation
• International logistics and customs support

Contact our sales team for volume orders and technical inquiries.

Installation Reference (Photos)

Below are installation step references for maintenance technicians: