STFA28 SERIES


15W Open Frame Power Supply for I.T. Equipment


  • Wide Input Voltage 90 to 264 VAC, 47 to 63Hz
  • Output Voltage Available From 5VDC To 33VDC
  • Size: 2.16"x6.29"x1.37"
  • Five Output, Class II Insulation
  • Input connector mates with E.C.I 3961-03N2 
  • Output connector mates with Lead wire

Specifications

 

 

3 Year Warranty

 

Approvals: 

 

 

Output Specification

Product Number

Output Voltage

Max. Output Current

Total Regulation

Maximum Output Power

STFA28

+3.3 VDC

1 A

5%

15W

+5 VDC

0.9 A

5%

+6 VDC

0.5 A

5%

+9 VDC

0.4 A

5%

+33 VDC

0.01A

5%

 

Electrical Characteristics

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Input Voltage

Operating Voltage

90

 

264

VAC

Input Frequency

 

47

 

63

Hz

Output Power Range

Vin= 90 to 264 VAC

0

 

15

W

Input Current (Low Line)

Io=Full load, Vin=115 VAC

 

 

 

A

Input Current (High Line)

Io=Full load, Vin= 230 VAC

 

 

 

A

Low Line Inrush Current

Io=Full load, 25°C, Cool start,

Vin=115VAC

 

 

 

A

High Line Inrush Current

Io=Full load, 25°C, Cool start,

Vin=230 VAC

 

 

 

A

Efficiency

Io=Full Load, Vin=230VAC

 

60

 

%

Line Regulation

Io=Full Load

 

 

1

%

Load Regulation

Vin=230VAC

 

 

5

%

Over Voltage Protection

 

 

 

 

%

Over Current Protection

 

 

 

 

%

Transient Response

Io=Full Load to Half Load, Vin=100VAC

 

 

 

mS

Hold-Up Time

Io=Full Load, Vin=110VAC

10

 

 

mS

Start Up Time

Io=Full Load,        Vin=100VAC

 

 

 

S

Ripple & Noise (Peak to Peak)

Full Load, Vin=90VAC

 

2

 

%

Safety Ground Leakage Current

Io= Full Load, Vin=240VAC

 

 

 

mA

Temperature Coefficient

All output

 

 

 

%/°C

No-Load Power Consumption

No Load, Vin=240VAC

 

 

 

W

 

 

Conditions

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Operating Temperature

 

0

 

70

°C

Storage Temperature

 

-40

 

85

°C

Relative Humidity

 

0

 

95

%

Operation temperature at 25, calculated per MIL-HDBK-217F 

 

 

 

KHrs

Derate linearly from 100% load at 50°C to 50% load at 70°C

 

Approvals and Compliance

Parameter

Test Conditions

Min.

Unit

Dielectric Withstanding Voltage for Primary to Secondary

Primary to Secondary

4242

VDC

Dielectric Withstanding Voltage for Primary to Ground

Primary to Ground

2121

VDC

Isoloation Resistance

Test Voltage=500VDC

50

MΩ

EMI requirements for CISPR-11

Vin=220VAC

B

CLASS

EMI requirements for FCC PART-18

Vin=110VAC

B

CLASS

Safety Approvals

 

n/a

n/a

Environmental Compliance

RoHS

n/a

n/a

 

Technical Chart

       

Derating Chart:

 

1. Operating Temperature: 0 to 70°C

2. Derate linearly from 100% load at 40°C to 50% load at 70°C

 

STFA28 - MEPOS ELECTRONICS
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