** This data sheet is only for models selection. For business, engineering specification by model must be used.

4-2

JAN. 2018

-Jim-

Medical & ITE

General Purpose

Rated

30W

Max.

40W

Peak

45W

SNP-HF3 Series

Output Specifications:

Note:

1. Standby Power Cosumption with System:

For computers and displays, ENERGY STAR in U.S. and ErP regulation in Europe require the input power should be less than 0.5W at standby mode.

2. Output Load:

30W for convection cooling; 40W for forced air cooling.

3. Peak Load Duration:

Peak 45W can last for 5 sec.

4. Isolation Grade:

Primary

Ground

: 1MOPP (1500Vac)

Primary

Secondary : 2MOPP (4000Vac)

Secondary

Ground

: 1MOPP (1500Vac)

5. Leakage Current:

Earth leakage current < 300uA

Touch current < 100uA

6. EMI Grounding:

If there is a metal sheet under the power supply, connect the EMI ground to that metal sheet.

7. Model Selection:

Most of power supplies will create audible burst sound at light load, if the application wants to meet input power < 0.5W at standby mode.

SNP-HF3x is for ITE & Medical applications which require standby mode.

SNP-HF3x-A is for ITE & Medical applications but without burst sound and no standby mode.

8. The safety application will be proceeded upon request.

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MODEL

OUTPUT

LOAD

INITIAL

STEP EFFICIENCY

AVERAGE

NO.

RAIL

MIN. RATED MAX. PEAK

ACCURACY

SNP-HF37

86%

87%

86%

86%

+12V

0A

2.5A 3.33A 3.75A

+11.8V~+12.2V

SNP-HF37-A

72%

80%

82%

77%

SNP-HF38

86%

87%

86%

86%

+15V

0A

2A 2.67A

3A

+14.8V~+15.2V

SNP-HF38-A

74%

81%

82%

78%

SNP-HF39

86%

87%

86%

86%

+24V

0A 1.25A 1.67A 1.88A

+23.8V~+24.2V

SNP-HF39-A

74%

80%

84%

78%

SNP-HF3T

86%

87%

86%

86%

+48V

0A 0.63A 0.83A 0.94A

+47.6V~+48.4V

SNP-HF3T-A

79%

85%

86%

83%