The copyright and authority for the interpretation of the products are reserved by Mornsun

Specifications subject to change without notice.

B_S(D)-W2

A/4-2009

Page 1 of 3

B_S(D)-W2 Series

0.25W, FIXED INPUT, ISOLATED & UNREGULATED

SINGLE OUTPUT DC-DC CONVERTER

FEATURES

PRODUCT PROGRAM

Input

Output

Voltage (VDC)

Current (mA)

Part

Number

Nominal

Range

Voltage

(VDC)

Max.

Min.

Efficiency

(%, Typ)

B0303S/D-W2*

3.3

76

8

62

B0305S/D-W2

3.3

2.97-3.63

5

50

5

64

B0503S/D-W2

3.3

76

8

64

B0505S/D-W2

5

50

5

64

B0509S/D-W2

9

28

3

65

B0512S/D-W2

12

21

2

65

B0515S/D-W2

5

4.5-5.5

15

17

2

65

B1203S/D-W2

3.3

76

8

62

B1205S/D-W2

5

50

5

63

B1209S/D-W2

9

28

3

63

B1212S/D-W2

12

21

2

65

B1215S/D-W2

12

10.8-13.2

15

17

2

66

B2405S/D-W2

5

50

5

63

B2409S/D-W2

9

28

3

63

B2412S/D-W2

12

21

2

65

B2415S/D-W2

24

21.6-26.4

15

17

2

66

*Designing.

COMMON SPECIFICATIONS

Item

Test conditions

Min.

Typ.

Max.

Units

Storage humidity

95

%

Operating temperature

-40

85

Storage temperature

-55

125

Temp. rise at full load

15

25

Lead temperature

1.5mm from case for 10 seconds

300

°C

Cooling

Free air convection

Case material

Plastic(UL94-V0)

Short circuit protection*

1

S

MTBF

3500

K hours

Weight

1.6

g

*Supply voltage must be discontinued at the end of short circuit duration.

ISOLATION SPECIFICATIONS

Item

Test conditions

Min.

Typ.

Max.

Units

Isolation voltage

Tested for 1 minute and 1mA max

1000

VDC

Isolation resistance

Test at 500VDC

1000

M

Ω

Isolation capacitance

85

pF

● SIP/DIP Package

● 1KVDC Isolation

● Temperature Range: -40°C ~ +85°C

● No Heat sink Required

● Internal SMD construction

● No External Component Required

● Industry Standard Pinout

● RoHS Compliance

APPLICATIONS

The B_S-W2/B_D-W2 Series are specially

designed for applications where a group of polar

power supplies are isolated from the input power

supply in a distributed power supply system on a

circuit board.

These products apply to:

1) Where the voltage of the input power supply

is fixed (voltage variation

≤ ±10%);

2) Where isolation is necessary between input

and output (isolation voltage

≤1000VDC);

3) Where the regulation of the output voltage

and

the

output

ripple

noise

are

not

demanding.

Such as: purely digital circuits, ordinary low

frequency analog circuits, and IGBT power

device driving circuits.

MODEL SELECTION

B0505S-W2

Produc t Series

Inp ut V oltage

Out put Voltage

Packa ge St yle

Rated Power

MORNSUN Science & Technology co.,Ltd.

Address: 2th floor 6th building, Hangzhou

Industrial District, Guangzhou, China

Tel: 86-20-38601850

Fax: 86-20-38601272

http://www.mornsun-power.com