PWC Switch Mode Open Frame Power Supplies

PowerBlock Micro-Miniature 5 Watt Switching Power Supplies

	5 Watts Output Power
	3.3VDC to 24VDC Single Outputs
	Universal Input
	3,000VAC Input to Output Isolation
	EN55022 Class B EMI
	Industrial Op. Temp (“E” Versions)

Model Number	Output Voltage	Output Amps	Load Regulation	Line Regulation	Efficiency
PWC-3.3E	3.3 VDC	1.25 (Note 5)	±1%, max. (Note 6)	±1%, max. (Note 7)	65%
PWC-5E	5 VDC	1 (Note 5)	±1%, max. (Note 6)	±1%, max. (Note 7)	72%
PWC-12E	12 VDC	0.42 (Note 5)	±0.5%, max 20%--FL (Note 6)	±0.5% max (Note 7)	73%
PWC-15E	15 VDC	0.34 (Note 5)	±0.5%, max 20%--FL (Note 6)	±0.5% max (Note 7)	75%
PWC-24E	24 VDC	0.23 (Note 5)	±0.5%, max 20%--FL (Note 6)	±0.5% max (Note 7)	76%

PWC series

Input Specifications

Input Voltage Range	90-264VAC/110-340VDC Nominal: 100-240VAC
Frequency Range	47-440 Hz, 50-60Hz Nom.
Inrush Current	20A @ 115VAC, typ 40A@ 200VAC, typ

Environmental Specifications

Operating Temperature	-25 to +65°C FL See Derate Curves (Note 4)
Storage Temperature	-40 to +85°C
Relative Humidity	0-95%, Non-Condensing
EMI	EN55022
MTBF	790890 Hrs MIL-HDBK-217F, Notice 2, Parts Count

Physical Specifications

Size (Inches)	1 x 2 x 0.6
Construction	Encapsulated
Weight (g)	42g
Weight (oz)	1.5oz

Output Specifications

Output Voltage	3.3 VDC
Output Amps	1.25 (Note 5)
Load Regulation	±1%, max. (Note 6)
Line Regulation	±1%, max. (Note 7)
Preset Accuracy	±1%, typ (Note 8)
Temperature Coefficient	±0.03%/°C (0-50°C, typ.)
Ripple and Noise	150mV Pk-Pk, typ (Notes 1, 2 & 9)
Over Voltage Protection	Clamp
Over Temperature Protection	Latching, Recovering
Short Circuit Protection	Latching, Recovering
Hold Up Time	10mS, typ

General Specifications

Isolation	3000VAC (Note 3)
Isolation Input-Ground	2500VAC
Isolation Output-Ground	1000VAC
Efficiency	65%
Switching Frequency	132 Khz, fixed, typ
Safety Approvals	UL60950, EN60950

Notes

1. All measurements should be made directly at the terminals of the power supply

2. Ripple and noise dependent upon output voltage as specified per particular model.

3. Isolation for up to 1 minute duration. 4. Specified for free air convection cooling.

5. Minimum load is not required for proper peration.

6. Load Regulation is measured from 5% to Full Load.

7. Line Regulation measured from High Line to Low Line.

8. Preset Accuracy measured at nominal load, 120VAC input.

9. O/P Noise measured directly at the pins/terminals at nominal load, 0.1uF bypass and 47uF electrolytic, pk-pk @ 20MHz bandwidth.

10. 100% Production Tested

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.

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PWC Switch Mode Open Frame Power Supplies