STUA250 SERIES


250W U-Bracket Power Supply for I.T. Equipment


  • Wide Input Voltage 100 to 240 VAC, 47 to 63Hz,  
  • Output Voltage Available 12, 24, 48VDC
  • Internal EMI filter, 
  • Active Power Factor Correction, 
  • Zero Voltage Switching (ZVS) & High Efficiency Up to 93%,
  • Dimensions: 4.18" x 6." x 1.54"
  • Input Surge Current, Over Voltage and Over Load Protection 
  • Single Output, Class I

Specifications

 

 

3 Year Warranty

 

Approvals:  

 

 

Single Output

Product Number

Output Voltage

Max. Output Current

Total Regulation

Maximum Output Power

STUA250-S05

12 VDC

18.33 A

5%

220W

STUA250-S08

24 VDC

10.42  A

3%

250W

STUA250-S11

48 VDC

5.21 A

2%

250W

 

Electrical Characteristics

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Safety Approvals Input Voltage Range

Safety Approval & Specification in Label

100

 

240

VAC

Operate Voltage Range

 

90

 

260

VAC

Input Frequency

Sine wave

47

 

63

Hz

Power Factor Correction

lo=Full load, Vin=240AC

0.95

 

1

 

Output Power Range

See Rating Chart

 

 

250

W

Low Line Input Current

Full load, Vin=100VAC

 

3.3

 

A

High Line Input Current

Full load, Vin=240VAC

 

1.3

 

A

Low Line Input Inrush Current

Full load, 25°C, Cool start, Vin=100VAC

 

 

45

A

High Line Input Inrush Current

Full load, 25°C, Cool start, Vin=240VAC

 

 

108

A

Safety Ground Leakage Current

Vin=240VAC, Fi=60Hz

 

 

0.75

mA

Efficiency

Full Load, Vin=230VAC

86

 

91

%

Line Regulation

Full Load, Vin=100~120VAC

0.5

 

1

%

Load Regulation

Vin=230VAC, 10~90% Load Change at Condition

2

 

5

%

Over Voltage Protection

Over Voltage Protection

112

 

132

%

Over Load Protection

Recovers automatically after fault condition is removed

110

 

150

%

Time of Transient Response

Io=Full Load to Half Load, Vin=110VAC

 

 

4

ms

Hold-Up Time

Full Load, Vin=100VAC

 

 

20

ms

Start Up Time

Full Load, Vin=100~240VAC

 

 

3

s

Ripple & Noise (Peak to Peak)

 

 

 

1

%

Temperature Coefficient

Full Load, Vin=100~240VAC

 

 

±0.04

%/°C

Dielectric Withstanding Voltage(P-S)

Primary to Secondary

 

 

4242

VDC

Dielectric Withstanding Voltage(P-G)

Primary to PE

 

 

2121

VDC

EMC Emission

Compliance to EN55022(CISPR22)

 

 

B

Class

 

Environmental

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Operating Temperature

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

0

 

70

°C

Storage Temperature

 10~95% RH

-40

 

85

°C

Operating Humidity

 non-condensing

0

 

95%

RH

Storage Humidity

 

0

 

95%

RH

Electro Static Discharge

Air Discharge, IEC61000-4-2

 

 

8

KV

Electro Static Discharge

Contact Discharge, IEC61000-4-2

 

 

4

KV

Mean Time Between Failure

Operation Temperature at 25, Calculated per MIL-HDBK-217F

100K

 

 

h

Operating Altitude (Elevation)

All Condition

 

 

2000

m

Vibration

10~500Hz,10min./1cycle, 60min.each along X, Y, Z axes

 

 

5

G

Surge Voltage

  Line-Neutral

 

 

1

KV

Surge Voltage

  Line-PE & Neutral-PE

 

 

2

KV

 

Mechanical Diagram & Technical Chart

PIN CHART

PIN

MODEL

1

2

3

4

STUA250-SXX           (4PIN)

RTN

RTN

OUT

OUT

 

PIN

MODEL

1

2

3

4

5

6

STUA250-SXX           (6PIN)

RTN

RTN

RTN

OUT

OUT

OUT

Note:

  1. Dimensions are shown in mm.
  2. Weight: 790gs approx.
  1. Input connector mates with INKLE#DT-2G-B01W-02P and DINKLE#ESK750V-02P
  1. Output connector mates with DINKLE#DT-2G-B01W-(04P or 06P) and DINKLE#ESK750V-(04P or 06P)

DERATING CHART

 

1. Operating Temperature: 0 to 70°C

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

 

STUA250 - MEPOS ELECTRONICS
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