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S4020PWAL K Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
S4020PWAL KLITEON1875Yes

Manufacturer:** LITEON **Part Number:** S4020PWAL K ### **Specifications:** - **Type:** Power Supply Unit (PSU) - **Form Factor:** ATX - **Wattage:** 400W - **Efficiency:** 80 PLUS White certified (~80% efficiency) - **Input Voltage:** 1

Manufacturer: LITEON

Part Number: S4020PWAL K

Specifications:

  • Type: Power Supply Unit (PSU)
  • Form Factor: ATX
  • Wattage: 400W
  • Efficiency: 80 PLUS White certified (~80% efficiency)
  • Input Voltage: 100-240V AC, 50/60Hz
  • Output:
  • +3.3V: 20A
  • +5V: 20A
  • Combined Power (3.3V + 5V): 120W max
  • +12V: 30A (single rail)
  • -12V: 0.3A
  • +5VSB: 2.5A
  • Connectors:
  • 24-pin ATX
  • 4-pin CPU
  • SATA
  • 4-pin Molex
  • Floppy (optional)
  • Cooling: 120mm fan
  • Protections: OVP (Over Voltage Protection), OPP (Over Power Protection), SCP (Short Circuit Protection)
  • Operating Temperature: 0°C to 40°C
  • MTBF: 100,000 hours

Descriptions:

The LITEON S4020PWAL K is an entry-level 400W ATX power supply designed for basic desktop systems. It features an 80 PLUS White efficiency rating, providing stable power delivery for mainstream PCs.

Features:

  • Single +12V rail for consistent power distribution
  • Active PFC (Power Factor Correction) for improved efficiency
  • Quiet 120mm cooling fan for effective heat dissipation
  • Compliance with Intel ATX12V v2.3 standards
  • Protections against overvoltage, overpower, and short circuits

This PSU is suitable for office PCs, home desktops, and low-power workstations.

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