P1H-5550V Emacs 550-Watts High Efficiency Power Supply

Technical Specifications:

Manufacturer: Emacs
Part Number: P1H-5550V
Product Type: Power Supply Unit (PSU), 550 W, 1U / ATX-compatible power supply
Maximum Power Output: 550 W
AC Input:
Voltage: 100–240 VAC (full range)
Frequency: 47–63 Hz
Input Current: ~8 A at 115V / ~4 A at 230V
Inrush Current: up to 40 A (115 VAC) / 60 A (230 VAC)
Efficiency & Power Factor:
Typical Efficiency: ~80% at 115V, full load
Active Power Factor Correction (PFC) compliant
Hold-up Time: Minimum 16 ms at full load & nominal input voltage
Regulation & Noise / Ripple:
Voltage Regulation: ±5% (for +3.3 V, +5 V, +12 V)
Ripple / Noise (peak-to-peak):
+3.3 V / +5 V / +5 VSB: ~50 mV
+12 V / –12 V: ~120 mV
Protections:
Over Power Protection (OPP)
Over Voltage Protection (OVP)
Over Current Protection (OCP)
Short Circuit Protection (SCP)
Meets safety standards (UL, TUV, CCC, etc.)
Cooling & Noise:
Single 40 mm DC fan (thermally controlled)
Connectors:
1 × 24-pin ATX / main power connector
1 × 8-pin (EPS / CPU) connector
Peripheral connectors (Molex / 4-pin)
SATA power connectors
Optional floppy (legacy) connectors
Form Factor / Dimensions:
Designed for 1U server / compact ATX systems
Approx. dimensions: 225 × 100 × 40.5 mm
Operating Conditions:
Operating Temperature: 0 °C – 50 °C
Storage Temperature: –20 °C – 80 °C