The 3Y Power Technology YM6042A is a 420W ATX power supply engineered for PC and industrial systems demanding multi-rail DC distribution. It accepts universal AC input and delivers six independent output rails through a 20-pin ATX connector, making it suitable for system integrators, laboratories, and enterprise deployments requiring reliable, regulated power across diverse voltage levels.
Technical Specifications
Input Power
• AC Input: 100-240V~, 50/60Hz, 10A maximum (switching)
DC Output Rails
• +5V @ 40A
• +12V @ 15A
• +3.3V @ 30A
• +5VSB @ 2.0A
• -5V @ 0.5A
• -12V @ 1.0A
• Combined 5V and 3.3V power: 220W maximum
• Total output capacity: 420W
Form Factor
• ATX Power Supply with 20-pin ATX connector plus standard connectors
– Key Features
• Six independent voltage rails support mixed-load applications
• Standby output (+5VSB) enables remote power-on capability
• Negative rail outputs (-5V, -12V) accommodate legacy analog circuits and signal conditioning
• 40A capacity on primary +5V rail handles high-current digital loads
• Switching topology delivers efficiency across the 100-240V~ input range
– Typical Applications
• PC motherboard and peripheral power distribution
• Industrial embedded systems with multi-voltage requirements
• Laboratory test and measurement benches
• Server and workstation deployments requiring ATX compliance
– Compatibility & Integration
The YM6042A’s 20-pin ATX connector ensures direct compatibility with standard ATX motherboards and industrial control platforms. Dual negative rails and standby output enable integration with legacy systems alongside modern digital infrastructure.












