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DC/DC CONVERTER
WIDE INPUT RANGE - 4:1
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

4:1 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-1205T-3K

9-36

+/-5

+/-1000

1082

40

77

3000

WFAD-1209T-3K

9-36

+/-9

+/-556

1063

40

78

3000

WFAD-1212T-3K

9-36

+/-12

+/-416

1041

40

80

3000

WFAD-1215T-3K

9-36

+/-15

+/-333

1028

40

81

3000

WFAD-2405T-3K

18-72

+/-5

+/-1000

527

20

79

3000

WFAD-2409T-3K

18-72

+/-9

+/-556

525

20

79

3000

WFAD-2412T-3K

18-72

+/-12

+/-416

520

20

80

3000

WFAD-2415T-3K

18-72

+/-15

+/-333

514

20

81

3000

4:1 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-1203.3T-3K

9-36

3.3

2400

880

40

76

3000

WFAS-1205T-3K

9-36

5

2000

1082

40

77

3000

WFAS-1209T-3K

9-36

9

1111

1065

40

78

3000

WFAS-1212T-3K

9-36

12

830

1054

40

79

3000

WFAS-1215T-3K

9-36

15

670

1041

40

80

3000

WFAS-1224T-3K

9-36

24

417

1057

40

79

3000

WFAS-2403.3T-3K

18-72

3.3

2400

434

20

76

3000

WFAS-2405T-3K

18-72

5

2000

527

20

79

3000

WFAS-2409T-3K

18-72

9

1111

515

20

81

3000

WFAS-2412T-3K

18-72

12

830

520

20

80

3000

WFAS-2415T-3K

18-72

15

670

514

20

81

3000

WFAS-2424T-3K

18-72

24

416

510

20

81

3000

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SIMPLIFIED SCHEMATIC

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MECHANICAL DIMENSIONS &
RECOMMENDED FOOTPRINT DETAILS

WFA-3K2-SCHEMATIC-1
WFA-3K2-SCHEMATIC-2
WFA-3K2-FOOTPRINT
WFA-3K2-DIMENSIONS
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