08-Apr-08

-20

25

50

75

100

Output

Power

(%)

OPERATING LIMITS AND OUTPUT POWER RANGE

NATURAL

CONVECTION

COOLING

0

+20

+40

+60

+80

+100

˚C

-20

-10

0

10

20

30

40

50

60

70

80

90

100

20

40

60

80

100

Ambient Temperature (ºC)

0

WF Series

Mechanical Details

Models and Ratings

Input

Voltage

Output

Voltage

Output

Current

Input Current

Efficiency

Model

No Load

Full Load

9-18 VDC

3.3 VDC

5.00 A

30 mA

1.86 A

74%

WF100

5.0 VDC

5.00 A

30 mA

2.67 A

78%

WF101

12.0 VDC

2.50 A

30 mA

3.05 A

82%

WF102

15.0 VDC

2.00 A

30 mA

3.05 A

82%

WF103

±5.0 VDC

±2.50 A

35 mA

2.67 A

78%

WF104

±12.0 VDC

±1.25 A

35 mA

3.05 A

82%

WF105

±15.0 VDC

±1.00 A

35 mA

3.05 A

82%

WF106

5.0/±12.0 VDC

3.50/±0.31 A

35 mA

2.64 A

79%

WF107

5.0/±15.0 VDC

3.50/±0.25 A

35 mA

2.64 A

79%

WF108

18-36 VDC

3.3 VDC

5.00 A

30 mA

0.92 A

75%

WF200

5.0 VDC

5.00 A

30 mA

1.34 A

79%

WF201

12.0 VDC

2.50 A

30 mA

1.52 A

82%

WF202

15.0 VDC

2.00 A

30 mA

1.52 A

82%

WF203

±5.0 VDC

±2.50 A

30 mA

1.34 A

79%

WF204

±12.0 VDC

±1.25 A

30 mA

1.47 A

85%

WF205

±15.0 VDC

±1.00 A

30 mA

1.47 A

85%

WF206

5.0/±12.0 VDC

3.50/±0.31 A

30 mA

1.32 A

80%

WF207

5.0/±15.0 VDC

3.50/±0.25 A

30 mA

1.32 A

80%

WF208

36-72 VDC

3.3 VDC

5.00 A

20 mA

0.46 A

75%

WF300

5.0 VDC

5.00 A

20 mA

0.66 A

79%

WF301

12.0 VDC

2.50 A

20 mA

0.76 A

82%

WF302

15.0 VDC

2.00 A

20 mA

0.76 A

82%

WF303

±5.0 VDC

±2.50 A

25 mA

0.66 A

79%

WF304

±12.0 VDC

±1.25 A

25 mA

0.73 A

85%

WF305

±15.0 VDC

±1.00 A

25 mA

0.73 A

85%

WF306

5.0/±12.0 VDC

3.50/±0.31 A

25 mA

0.65 A

80%

WF307

5.0/±15.0 VDC

3.50/±0.25 A

25 mA

0.65 A

80%

WF308

Notes

1. For optional UL60950-1 approved product, add suffix ‘U’ to model number.

External Output Trimming

Notes

1. Maximum total power from all outputs is limited to 25 W but no output should be allowed to

exceed its maximum current.

2. Minimum current on each output is required to maintain specified regulation.

8

7

6

5

4

3

2

1

0.04 (1.02)

DIA

2.00 (50.8)

0.90

(22.9)

0.20

(5.1)

0.40

(10.2)

1.80

(45.7)

2.00

(50.8)

0.40

(10.16)

0.22

(5.6)

min

0.40

(10.16)

0.40

(10.16)

0.40

(10.16)

BOTTOM VIEW

Output

Pin No.

Voltage

Current

Maximum

7

+5

0.50 A

3.50 A

8 & 5

+12 or -12

0.10 A

0.31 A

8 & 5

+15 or -15

0.10 A

0.25 A

PIN CONNECTIONS

Pin

Single Output

Dual Output

Triple Output

1

Remote On/Off

Remote On/Off

Remote On/Off

2

No pin

No pin

No pin

3

-V input

-V input

-V input

4

+V input

+V input

+V input

5

Output trim

Output trim

-Output

6

-Output

-Output

Common

7

+Output

Common

+5V Output

8

No pin

+Output

+Output

All dimensions are in inches (mm)

Weight: 0.15 lbs (66 g) approx.

Case Material: Black coated copper with non-conductive base.

TRIM

DOWN

TRIM

UP/DOWN

10K

TRIM UP

PIN 6

PIN 7

PIN 5

Output may optionally be externally

trimmed (±10%) with a fixed

resistor 10K or external trimpot

as shown

Application Notes

Derating Curve