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DC/DC CONVERTER
WIDE INPUT RANGE - 2:1
WFA-3K SERIES

Mechanical Characteristics

Length:50.8mm

Height: 11.2mm

Width: 25.4mm

Weight: 31.2g Typ

GENERAL SPECIFICATIONS

Operating Temperature

-25oC to +71oC

Isolation Capacitance

500pF max

Storage Temperature

-55oC to +125oC

Switching Frequency

200 KHz min

Humidity

95% max

MTBF

>700,000 Hours at 25oC

Cooling

Free-Air Convection

Case Material

Five-sided shield case

Efficiency

70% min

Potting Material

Epoxy(UL94-V0)

Isolation Voltage

3000VDC min

Conducted Emissions

EN55022 Class A

Isolation Resistance

109 ohms min

Radiated Emissions

EN55022 Class A

ELECTRICAL SPECIFICATIONS

Input Voltage Range

2:1, 4:1 Input Range

Load Regulation

+/-0.5% max

Input Filter

Pi Network

Minimum Load

10% of Full Load

Protection

Fuse Recommended

Short Circuit Protection

Continuous

Voltage Setpoint Accuracy

+/-2% max

Short Circuit Restart

Automatic

Temperature Coefficient

+/-0.05%/oC

Overload Protection

180% Typ

Ripple & Noise(20MHz BW)

200mVp-p max

Transient Response

200uS max

Line Regulation

+/-0.5% max

 

 

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OUTPUT SPECIFICATIONS

2:1 8W-10W DUAL OUTPUT

Model No

INPUT VOLTAGE
(DC)

OUTPUT VOLTAGE
(DC)

OUTPUT CURRENT
(mA)

INPUT CURRENT(mA)

EFF
(%)

ISOLATION(VDC)

FULL LOAD

NO LOAD

WFAD-4805-3K

36-72

+/-5

+/-1000

262

8

79

3000

WFAD-4809-3K

36-72

+/-9

+/-556

254

8

80

3000

WFAD-4812-3K

36-72

+/-12

+/-416

254

7

82

3000

WFAD-4815-3K

36-72

+/-15

+/-333

254

7

82

3000

2:1 8W-10W SINGLE OUTPUT

Model No

INPUT VOLTAGE
(DC)

OUTPUT VOLTAGE
(DC)

OUTPUT CURRENT
(mA)

INPUT CURRENT(mA)

EFF
(%)

ISOLATION(VDC)

FULL LOAD

NO LOAD

WFAS-4803.3-3K

36-72

3.3

2400

217

8

76

3000

WFAS-4805-3K

36-72

5

2000

264

8

79

3000

WFAS-4809-3K

36-72

9

1111

254

8

80

3000

WFAS-4812-3K

36-72

12

830

254

7

82

3000

WFAS-4815-3K

36-72

15

670

254

7

82

3000

WFAS-4824-3K

36-72

24

416

264

7

82

3000

2:1 7W-10W DUAL OUTPUT

Model No

INPUT VOLTAGE
(DC)

OUTPUT VOLTAGE
(DC)

OUTPUT CURRENT
(mA)

INPUT CURRENT(mA)

EFF
(%)

ISOLATION(VDC)

FULL LOAD

NO LOAD

WFAD-1205-3K

9-18

+/-5

+/-1000

1068

30

78

3000

WFAD-1209-3K

9-18

+/-9

+/-556

1046

30

80

3000

WFAD-1212-3K

9-18

+/-12

+/-416

1029

28

81

3000

WFAD-1215-3K

9-18

+/-15

+/-333

1020

28

82

3000

WFAD-2405-3K

18-36

+/-5

+/-1000

527

16

79

3000

WFAD-2409-3K

18-36

+/-9

+/-556

523

18

80

3000

WFAD-2412-3K

18-36

+/-12

+/-416

508

15

82

3000

WFAD-2415-3K

18-36

+/-15

+/-333

510

15

82

3000

2:1 7W-10W SINGLE OUTPUT

Model No

INPUT VOLTAGE
(DC)

OUTPUT VOLTAGE
(DC)

OUTPUT CURRENT
(mA)

INPUT CURRENT(mA)

EFF
(%)

ISOLATION
(VDC)

FULL LOAD

NO LOAD

WFAS-1203.3-3K

9-18

3.3

2400

891

30

74

3000

WFAS-1205-3K

9-18

5

2000

1068

30

78

3000

WFAS-1209-3K

9-18

9

1111

1050

30

79

3000

WFAS-1212-3K

9-18

12

830

1040

28

80

3000

WFAS-1215-3K

9-18

15

670

1020

28

81

3000

WFAS-1224-3K

9-18

24

416

1020

28

82

3000

WFAS-2403.3-3K

18-36

3.3

2400

434

16

76

3000

WFAS-2405-3K

18-36

5

2000

527

16

79

3000

WFAS-2409-3K

18-36

9

1111

523

20

80

3000

WFAS-2412-3K

18-36

12

830

508

15

82

3000

WFAS-2415-3K

18-36

15

670

502

15

83

3000

WFAS-2424-3K

18-36

24

416

502

15

83

3000

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SIMPLIFIED SCHEMATIC

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MECHANICAL DIMENSIONS &
RECOMMENDED FOOTPRINT DETAILS

WFA-3K-SCHEMATIC-1
WFA-3K-SCHEMATIC-2
WFA-3K-FOOTPRINT
WFA-3K-DIMENSIONS
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