USB to RS232(CH340 chip) communication module two-way TVS protection

The USB to RS232 (CH340 Chip) communication module with two-way TVS protection is designed to provide stable and efficient data communication between a computer and RS232 devices. It is ideal for industrial automation, serial device communication, and legacy equipment integration. This module leverages the CH340 chip for reliable data transmission and incorporates two-way TVS protection to ensure electrical safety.

Product Specifications

• Power Supply: USB 5V
• Transmission Distance: Up to 1200 meters (under 9600bps conditions)
• Chip Solution: CH340
• Communication Protocol: Pure hardware device, not restricted by protocol
• Baud Rate: Up to 921600bps, supports higher baud rates for better compatibility
• Protection: TVS transient suppression, ESD protection, surge protection, and short-circuit protection for AB signal lines and power connections (prevents damage from short circuits)
• Temperature Range: -40°C to 80°C
• Dimensions: 70 × 27 × 13mm (Length × Width × Height)
• Weight: 16g

Note: An external 5V power supply is required, with current limiting for safety.