Qualtek Products
Open Frame Switching Power Supplies - QPS-20 (20 Watts - Single Output)

Open Frame Switching Power Supplies - QPS-20 (20 Watts - Single Output)
  • Universal AC input/ Full range
  • Wide Operating Ambient Temperature (-20°C~60°C)
  • High Efficiency and High Reliability
  • Ultra-miniature size, low profile
  • Output Protections: OLP/OVP/SCP
  • All using 105°C long life electrolytic capacitors.
  • 100% full load burn-in test
Qualtek QPS-20
Click here for specification and dimensions in .pdf formatPDF
Part Number Add part number QPS-20-3.3 to your Quote. QPS-20-3.3 Add part number QPS-20-5 to your Quote. QPS-20-5 Add part number QPS-20-12 to your Quote. QPS-20-12 Add part number QPS-20-15 to your Quote. QPS-20-15 Add part number QPS-20-24 to your Quote. QPS-20-24 Add part number QPS-20-48 to your Quote. QPS-20-48
Output Charateristics
DC Output 3.3V 5V 12V 15V 24V 48V
Rated Current 4A 4A 1.67A 1.34A 0.84A 0.42A
Current Range 0~4A 0~4A 0~1.67A 0~1.34A 0~0.84A 0~0.42A
Ripple and Noise 0~60°C <50mV <50mV <50mV <50mV <50mV <100mV
-20~0°C <75mV <75mV <75mV <75mV <75mV <100mV
Voltage Adj. Range 3.1~3.6V 4.4~5.6V 11.1V~13.1V 13.7V~16.1V 22.0V~25.4V 45.6V~50.4V
Voltage Accuracy ±2% ±2% ±2% ±2% ±2% ±2%
Line Regulation ±0.5% ±0.5% ±0.5% ±0.5% ±0.5% ±0.5%
Load Regulation ±2% ±2% ±2% ±2% ±2% ±2%
Set-up Time <2.0s (115VAC input, full load); <1.0s (230VAC input, full load)
Hold-up Time >10ms (115VAC input, full load); >20ms (230VAC input, full load)
Temperature Coefficient ±0.03% / °C
Overshoot and Undershoot <5.0%
Input Characteristics
Voltage Range 90VAC~264VAC, 127-370VDC
Frequency Range 47Hz-63Hz
Efficiency (Typical) 115VAC Input 69% 76% 79% 80% 80% 80%
230VAC Input 68% 75% 78% 79% 79% 79%
AC Current (max) <0.5A
Inrush Current (Typical) <20A@115VAC Cold start; <40A@230VAC Cold Start
Leakage Current Input-Output: <0.35mA Input-PG: <0.75mA
Over Load (OLP) 105%~150% of rated output power, hiccup mode, auto recovery
Over Voltage (OVP) 110%~140% of rated output voltage, constant voltage
Short Circuit (SCP) Long-term mode, auto recovery
Environmental Characteristics
Operating Amb. Temp and Hum. -20°C~60°C, 20%~90% RH Non-Condensing
Storage Temp. and Hum. -40°C~85°C: 10%-95% RH Non-Condensing
Safety Standards UL60950-1; EN60950-1: 2006
Withstand Voltage Primary-Secondary: 3.0KVAC; <=10mA.
Primary-PG: 1.5KVAC;<=10mA.
Secondary-PG: 0.5KVDC;<=10mA
Isolation Resistance >= 100M ohms
EMI Conduction and Radiation Compliance to EN55022(CISPR22) Class B
Harmonic Current Compliance to EN61000-3-2, 17625.1-2003
EMS Immunity Compliance to EN61000-4-2, 3, 4, 5, 6, 8, 11; ENV50204, light industry level, criteria A
General Charaterisitcs
MTBF (MIL-HDBK-217F) More than 200,000 Hrs (25°C, Full load)
Dimensions (LxWxH) 89 x 51 x 20 mm
Packing 60 PCS/CTN. G.W: 7.6kgs
Cooling Method Cooling by free air convection