Selectable Voltage: 3V, 5V, 6V, 7.5V, 9V, or 12V
 
Features 
Level VI Efficiency Standard Compliant Switchable, Multi−Voltage Outputs 
57−U1: 3V, 5V, 6V, 7.5V, 9V, 12V, 15V @ 1A 
57−U2: 3V, 5V, 6V, 7.5V, 9V, 12V @ 2.5A
Includes 2 Reversible Polarity 2.1mm x 5.5mm Tips: 
Right Angle (57−UA1) Straight (57−UA2) 
Specifications 
AC Input
Voltage Range: 100 − 240 VAC 
Input Frequency: 50 − 60 Hz Inrush Current: 50A Max 
DC Output 
Voltage Range:
57−U1: 3V − 15V 
57−U2: 3V − 12V
Current Range: 
57−U1: 0.01A − 1A 
57−U2: 0.01A − 2.5A
Ripple (at Typ Input Voltage and Load Current) 200mV Max 
Environmental
Operating Temperature: 0 to +40 C, Full Load, Normal Operation 
Reliability 
Insulation Resistance: 50M Min (Primary to Secondary, DC 500V/60s)
MTBF: 30000 Hours