SNP-PA51 50W 5V, 12V & -12V Desktop Adapter
Series: SNP-PA5
Application: IT & Industrial
Form Factor: Desktop Adapter, External
Type: AC-DC
No of Outputs: Outputs 3
O/P Voltage: 5V
, 12V
, 12V
O/P Current: 3A
, 2.5A
, 0.3A


SNP-PA5X series are 50W plastic adapter power supplies with universal input (90~260 VAC). This series is designed to meet UL, CSA and VDE safety approvals as well as VDE 0871 “B” conducted and FCC part 15 class “B” conducted and radiated EMI limits. Typical applications are external desk top applications like notebook computers or security applications.


3.15 x 6.5 x 2.2 inch
80 x 165 x 56 mm

DC Outputs

Output, V +5V +12V -12V
Max Load, A 3A 2.5A 0.3A
Regulation, % +/-5% +/-6% +/-5%
Ripple, mV 50 120 120


Input VAC
Voltage, V 90-264 continuous
Frequency, Hz 47-63
Current, A <30A at 115VAC, <60A at 2
Power Factor N/A
Cooling Free air convection
Power Good N/A
Holdup Time >16ms @ 115 VAC, full load
Transient N/A
Efficiency >70% at full load
Shorted output No damage
Over Load Protection auto-recovery
Short Circuit Protection auto-recovery
Over Voltage Protection auto-recovery
EMS Consult Factory
Temperature 0 to 50 deg C
EMI FCC class
Safety Agency UL 1950 D3, CSA 22.2 No. 234, VDE 60 950


1. Each output can provide up to peak load temporarily. Continuous staying in more than rated load is not allowed.
2. Each output is checked at the factory to be within voltage accuracy with a 60% rated load condition.
3. Line regulation is defined by changing +-10% of input voltage from nominal line at rated load.
4. Load regulation is defined by changing +-40% of measured output load from 60%rated load at another output set to 60% rated load.
5. Ripple & noise is measured by using 15MHz bandwidth limited oscilloscope and terminated each output with a 0.47uF capacitor at rated load and nominal line.
6. Hold up time is measured from the end of the last charging pulse to the time, which the +5V output drops down to 4.75V at rated load and nominal line.
7. Efficiency is measured at rated load.