Hi-Link HLK-B1212S-1WR3 DC-DC Isolated Power Supply Module

The B1212S-1WR3 DC-DC Isolated Converter is a compact, high-reliability power module designed to provide stable and electrically isolated DC power. It converts a 12 V DC input into an isolated 12 V DC output, helping protect sensitive circuits from noise, ground loops, and voltage spikes. Its SIP package makes it easy to integrate into industrial, embedded, and instrumentation designs.

Technical Specifications:

• Input Voltage: 12 V DC (typical
  
• Output Voltage: 12 V DC (isolated)
  
• Output Power: 1 W
  
• Output Current: ~83 mA
  
• Isolation Voltage: Up to 1 kV DC
  
• Efficiency: Up to ~80%
  
• Regulation: Unregulated / semi-regulated
  
• Package Type: SIP-4 / SIP-7 (PCB mount)
  
• Switching Frequency: High-frequency internal switching
  
• Operating Temperature: –40 °C to +85 °C (typical)

Features:

• Complete input-output electrical isolation
  
• Compact SIP package for space-constrained designs
  
• High reliability and long operational life
  
• Low ripple and noise performance
  
• Built-in short-circuit protection
  
• Suitable for industrial-grade applications
  
• Simple plug-and-play PCB integration
• Stable performance across wide temperature range

Applications:

• Industrial control and automation systems
  
• Sensor signal isolation and conditioning
  
• Embedded and IoT power supplies
  
• Communication and data acquisition equipment
  
• Medical and instrumentation circuits
  
• Power isolation for MCU and logic circuits
  
• Protection against ground loop interference