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RD50 50w Switch Mode Power Supplies

50W Dual Output Switching Power Supply

Universal AC input

Protections:Short circuit/Over load/Over voltage

Cooling by free air convection

LED indicator for power on

All using 105°C long life electrolytic capacitors

High efficiency, long life and high reliability

Model Number

Output Voltage

Output Amps

Ripple and Noise

Efficiency

RD50-A

5 Volts(DC)/12 Volts(DC)

6 Amps/2 Amps

80mV pk-pk/120mV pk-pk (Note 1)

79% typ.

RD50-B

5 Volts(DC)/24 Volts(DC)

4 Amps/1.4 Amps

80mV pk-pk/150mV pk-pk (Note 1)

80% typ.

RD50 series

Input Specifications

Input Voltage Range

90 ~ 264 VAC; 125~373 Volts(DC)

Input Reflected Ripple Current

1.3 Amps. @ 115VAC, 0.8 Amps. @ 230VAC

Frequency Range

47-63Hz

Inrush Current

33Amps / 230VAC (cold start)

General Specifications

Isolation

4242VDC

Isolation Input-Ground

2121VDC

Isolation Output-Ground

707VDC

Insulation Resistance

79% typ.

Switching Frequency

UL60950-1, TUV EN60950-1 Approved

Environmental Specifications

Operating Temperature

-25°C to +70°C (See Derate Curve)

Storage Temperature

-40°C to +85°C, 10~95%

Relative Humidity

20~90% RH non cond

EMI

Compliance to EN55022 (CISPR22) Class B

MTBF

172.6KHrs min, MIL-UDBK-217F(25°C)

EMS

Compliance to EN61000-4-2, 3, 4, 5, 6, 8, 11; ENV50204, EN61000-6-2 (EN50082-2) Heavy Industry Level, Criteria A

Output Specifications

Size (mm)

99 x 97 x 36mm

Size (Inches)

3.90” x 3.82 ” x 1.42 ”

Weight (g)

410g

Weight (oz)

14.46oz

1. Ripple & noise are measured at 20MHz of bandwidth by using a 12” twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.

All specifications are typical at nominal input, full load, and 25°C unless otherwise noted

Astrodyne products are not authorized or warranteed for use as critical components in life support systems, equipment used in hazardous environments, nuclear controls systems, or other mission-critical applications.

Output Voltage

5 Volts(DC)/12 Volts(DC)

Output Amps

6 Amps/2 Amps

Load Regulation

±0.5%/±3.0%

Line Regulation

±0.5%/±1.5%

Temperature Coefficient

±0.03%/°C (0-50°C) on +5V output

Ripple and Noise

80mV pk-pk/120mV pk-pk (Note 1)

Over Voltage Protection

5Volts : 5.75 ~ 6.75Volts(DC), Hiccup mode, auto recover

Over Current Protection

110 ~ 150% rated output power, Hiccup mode, auto recover

DC Voltage Adjust (typ.)

5Volts(DC): 4.75 ~ 5.5Volts(DC)

Hold Up Time

60mS / 230VAC, 14mS / 115VAC

Physical Specifications

Notes