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STFA40 SERIES


40W Open Frame Power Supply for I.T. Equipment


  • Wide Input Voltage 90 to 264 VAC, 47 to 63Hz
  • Internal EMI Filter
  • Output Voltage Available From 3.3VDC Thru 48VDC
  • Size: 2"x4"x0.89"
  • Single Output, Class I Insulation
  • Input Surge Current, Over Load and Over Voltage Protection

Specifications

 

 

3 Year Warranty

 

Approvals:  

 

 

Single Output

Model Number

Output Voltage

Output Current

Total Regulation

Maximum Output Power

Certificate

STFA40-S01

3.3 ~ 05VDC

6.06 ~ 4.00 A

±5%

20W

RoHS2

STFA40-S02

05 ~ 06 VDC

5.60 ~ 4.66  A

±5%

28W

RoHS2

STFA40-S03

06 ~ 08 VDC

5.33 ~ 4.00 A

±5%

32W

RoHS2

STFA40-S04

08 ~ 11 VDC

4.50 ~ 3.27 A

±5%

36W

RoHS2

STFA40-S05

11 ~ 13 VDC

3.63 ~ 3.07 A

±5%

40W

UL, RoHS2

STFA40-S06

13 ~ 16 VDC

3.07 ~ 2.50 A

±5%

40W

RoHS2

STFA40-S07

16 ~ 21 VDC

2.50 ~ 1.90 A

±5%

40W

RoHS2

STFA40-S08

21 ~ 27 VDC

1.90 ~ 1.48 A

±3%

40W

RoHS2

STFA40-S09

27 ~ 33 VDC

1.48 ~ 1.21 A

±3%

40W

RoHS2

STFA40-S10

33 ~ 40 VDC

       1.21 ~ 1.00 A

±3%

40W

RoHS2

STFA40-S11

40 ~ 48 VDC

1.00 ~ 0.83 A

±3%

40W

RoHS2

 

 

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

 

40

W

Input Current (Low Line)

Io=Full load, Vin=115 VAC

 

 

1

A

Input Current (High Line)

Io=Full load, Vin= 230 VAC

 

 

0.5

A

Low Line Inrush Current

Io=Full load, 25°C, Cool start,

Vin=115VAC

 

12

15

A

High Line Inrush Current

Io=Full load, 25°C, Cool start,

Vin=230 VAC

 

26

30

A

Efficiency

Io=Full Load, Vin=230VAC

80

 

88

%

Line Regulation

Io=Full Load

 

0.5

1

%

Load Regulation

Vin=230VAC

 

3

5

%

Over Voltage Protection

 

112

 

132

%

Over Current Protection

 

110

 

150

%

Transient Response

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

 

 

4

mS

Hold-Up Time

Io=Full Load, Vin=110VAC

12

 

 

mS

Start Up Time

Io=Full Load,        Vin=100VAC

0.3

1

2

S

Ripple & Noise (Peak to Peak)

Full Load, Vin=90VAC

 

0 .5

1

%

Safety Ground Leakage Current

Io= Full Load, Vin=240VAC

 

0.4

0.75

mA

Temperature Coefficient

All output

-0.04

 

0.04

%/°C

No-Load Power Consumption

No Load, Vin=240VAC

0.1

 

0.5

W

 

 

Conditions

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Operating Temperature

 

0

 

70

°C

Storage Temperature

 

-40

 

85

°C

Relative Humidity

 

5

 

95

%

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

100

 

 

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 UL/c-UL

UL/C-UL 60950-1 (for STFA40-S05 only)

n/a

n/a

Environmental Compliance

RoHS2

n/a

n/a

 

Mechanical and PIN Out

       

Note:

  1. Dimensions are shown in mm & inch
  2. Weight: approx. 140g
  3. Input connector mates with Molex housing 35977-0300 and Molex 35922 series crimp terminal.

 

 

Datasheet PDF