Features:

  • 500W
  • Open Frame Power Supply
  • U-Channel, End fan and Top fan types available
  • Optional high efficiency OR-ing FET diode Current share function

Open Frame Power Supply 500W EJ-500B-1YXXX-PW Product Description

The Single Output Open Frame Power Supply 500W EJ-500B-1YXXX-PW delivers higher efficiency and improved performance to meet the growing demand for green power technology. Featuring industry standard footprints, the EJ-500B-1YXXX-PW’s efficient design, compact size and rock-solid reliability make these power supplies the ideal solution for a range of consumer, industrial, and ITE applications.

Electrical specifications
• Input range : 90-264VAC
• Frequency : 47 – 63Hz
• Power Factor : > 0.95 @115VAC; > 0.90 @230VAC @full load
• Inrush current : < 25A peak @115VAC; < 50A peak @230VAC cold start @25°C • Input current (rms) : 6A @115VAC; 3A @230VAC max. • Efficiency : > 83% typical @full load, 115VAC
• Leakage current : < 300uA @264VAC • Maximum power : 500 Watts with 30CFM forced air cooling (U-channel type) • Hold-up time : > 20ms typical @360 watt load, 115VAC
• Short circuit protection : Auto recovery
• Over load protection : 110% to 150% maximum rating, Auto-recovery
• Over voltage protection : 130% max. above nominal output, shutdown and latch off
• Current share (Single wire) : Up to 4 units can be paralleled [Optional] within 10% accuracy at full load.
• Remote inhibit function
• +5VSB/0.25A convection cooling, 1.0A forced air cooling
• +12V/1A DC fan Output

Environmental
• Operating temperature : 0 to +70°C (Derate linearly 2.5% per °C from 51 to 70°C)
• Humidity: Non-condensing 5% to 95%
• MTBF : > 100,000 hours @full load and 25°C ambient temperature

SAFETY STANDARDS
• UL UL60950-1
• CSA CSA-C22.2 NO.950-1
• TUV EN60950-1
• CB IEC60950-1

EMI STANDARDS
• FCC Part 15 Class B
• EN55022 Class B
• CE

Description
• U-channel type
*Dimension : L203.2 × W118.5 × H38.5 mm ( 8″ × 4.66″ × 1.51″ )
*Weight : 0.86 kgs. (1.90 lbs.)

• End Fan type (40x40x20mm DC Fan)
*Dimension : L229.4 × W118.5 × H41.5 mm ( 9.03″ × 4.66″ × 1.63″ )
*Weight : 0.98 kgs. (2.16 lbs.)

• Top Fan type (60x60x15mm DC Fan)
*Dimension : L203.2 × W118.5 × H66 mm ( 8″ × 4.66″ × 2.60″ )
*Weight : 0.99 kgs. (2.18 lbs.)

DC Outputs

Model no.Output voltageMinimum loadMaximum loadMaximum load with convection coolingOutput wattsO/P regulationRipple & noise (Vp-p)
EJ-500B-1Y120-X-PW+12V0A30A41.67A500W5%120mV
EJ-500B-1Y240-X-PW+24V0A15A20.84A500W5%240mV
EJ-500B-1Y300-X-PW+30V0A12A16.67A500W5%300mV
EJ-500B-1Y360-X-PW+36V0A10A13.89A500W5%360mv
EJ-500B-1Y480-X-PW+48V0A7.5A10.42A500W5%480mV
EJ-500B-1Y540-X-PW+54V0A6.67A9.26A500W5%540mV
EJ-500B-1Y570-X-PW+57V0A6.32A8.78A500W5%570mV