-27-

H HiTRON

AC/DC EXTERNAL DESKTOP ADAPTER UNIVERSAL INPUT

SINGLE OUTPUT 25-36 WATTS SWITCHING POWER SUPPLIES

HES34 SERIES

FEATURES

UNIVERSAL AC INPUT

DESKTOP IEC320 AC RECEPTACLE

MEET UNIVERSAL SAFETY STANDARDS

EMI MEET EN 55022 / FCC CLASS B

CE MARKING COMPLIANCE

OUTPUT SPECIFICATION

Output Voltage: See Ratings Chart.

Output Current: See Ratings Chart.

Output Wattage: 25-36Watts typical.

Output Connector & Cord: Optional.

Line Regulation: 0.1% typical.

Load Regulation: ±1.5-3.0% typical.

Noise & Ripple: 1.0% typical peak to peak.

OVP: Built-in, by Zener diode clamping.

Adjustability: Factory set.

Overload Protection (OLP):

Fully protected against output overload and short circuit.

OLP set at about 125-150% rating output wattage.

Consult the factory for OLP setting.

SPECIFICATION

INPUT SPECIFICATION

Input Voltage: 90-264Vac typical.

Input Connector: IEC320-3P DT7 type

AC inlet receptacle.

Input Frequency: 47-63Hz.

Inrush Current: 35A max. @264Vac or less than

30A @230Vac by adding thermister.

Input Current: 0.65A @115Vac typical.

0.3A @230Vac typical.

Dielectric Withstand: Meet IEC60950.

EMI: Meet EN 55022 / FCC Class B.

Hold-up Time: 17mS @115Vac typical.

68mS typ. @230Vac typical.

GENERAL SPECIFICATION

Efficiency: 80-85% typical.

Switching Frequency: Approximate 73K Hz.

Circuit Topology: Fixed Frequency Flyback circuit.

Transient Response: Output voltage returns in less than

3mS following a 25% load change.

Safety Standard: Meet UL1950/ EN60950, Class I.

Power Density: 2.70 Watts / Cubic inch.

Operating Temperature: 0 to +25/35/40°C

without derating. (various with output voltage)

Storage Temperature: -20°C to +85°C.

Temperature coefficient: 0.04% /°C.

Cooling: Free air convection.

Construction: Impact resistant thermo-plastic

enclosure case.

Desktop Format.

NOTE: (1) All measurements are at nominal input, full load, and +25°C unless otherwise specified.

(2) Load regulation is measured at 115Vac or 230Vac in percentage indicate the change in output voltage as the load varied from half load to full load(

±%)

(3) The exact obtainable load regulation depends upon the output cord selected and load current. Upper data are for 6 ft. (2 m) cord AWG#18 wires.

(4) Due to requests in market and advances in technology, specifications subject to change without notice

For the details of safety approval, please consult the factory.