WRA

WRA

WRA

WRA

WRA

WRA

WRA

YS-

YS-

YS-

YS-

YS-

YS-

2

2

2

2

2

2

W

W

W

W

W

W

＆

＆

＆

＆

＆

＆

WRB

WRB

WRB

WRB

WRB

WRB

YS

YS

YS

YS

YS

YS

2

2

2

2

2

2

W

W

W

W

W

W

Series

http://www.microdc.cn

Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646

Page 1 of 3

SELECTION

SELECTION

SELECTION

SELECTION

SELECTION

SELECTION

SELECTION

GUIDE

GUIDE

GUIDE

GUIDE

GUIDE

GUIDE

GUIDE

order code

Input

Output

Efficiency

(%,Typ)

Voltage(VDC)

Current(MA)

Voltage

(VDC)

Nominal

Range

Max*

Max

Min

WRA0505YS-2W

5

4.5-9.0

11

±200

±20

±5

67

WRA0512YS-2W

5

4.5-9.0

11

±83

±8

±12

72

WRA0515YS-2W

5

4.5-9.0

11

±67

±7

±15

73

WRB0505YS-2W

5

4.5-9.0

11

400

40

5

67

WRB0509YS-2W

5

4.5-9.0

11

222

22

9

72

WRB0512YS-2W

5

4.5-9.0

11

167

16

12

73

WRB0515YS-2W

5

4.5-9.0

11

133

13

15

72

WRA1205YS-2W

12

9.0-18.0

22

±200

±20

±5

73

WRA1212YS-2W

12

9.0-18.0

22

±83

±8

±12

78

WRA1215YS-2W

12

9.0-18.0

22

±67

±7

±15

77

WRB1205YS-2W

12

9.0-18.0

22

400

40

5

75

WRB1209YS-2W

12

9.0-18.0

22

222

22

9

77

WRB1212YS-2W

12

9.0-18.0

22

167

16

12

79

WRB1215YS-2W

12

9.0-18.0

22

133

13

15

80

WRA2405YS-2W

24

18.0-36.0

40

±200

±20

±5

76

WRA2412YS-2W

24

18.0-36.0

40

±83

±8

±12

79

WRA2415YS-2W

24

18.0-36.0

40

±67

±7

±15

78

WRB2403YS-2W

24

18.0-36.0

40

500

50

3.3

67

WRB2405YS-2W

24

18.0-36.0

40

400

40

5

77

WRB2409YS-2W

24

18.0-36.0

40

222

22

9

79

WRB2412YS-2W

24

18.0-36.0

40

167

16

12

80

WRB2415YS-2W

24

18.0-36.0

40

133

13

15

80

WRA4805YS-2W

48

36.0-72.0

80

±200

±20

±5

75

WRA4812YS-2W

48

36.0-72.0

80

±83

±8

±12

79

WRA4815YS-2W

48

36.0-72.0

80

±67

±7

±15

79

WRB4805YS-2W

48

36.0-72.0

80

400

40

5

75

WRB4809YS-2W

48

36.0-72.0

80

222

22

9

76

WRB4812YS-2W

48

36.0-72.0

80

167

16

12

78

WRB4815YS-2W

48

36.0-72.0

80

133

13

15

78

*Input voltage can't exceed this value,or will cause the permanent damage.

MODEL

MODEL

MODEL

MODEL

MODEL

MODEL

MODEL

SELECTION

SELECTION

SELECTION

SELECTION

SELECTION

SELECTION

SELECTION

WR

WR

WR

WR

WR

WR

WR

A

A

A

A

A

A

A

①

①

①

05

05

05

05

05

05

05

②

②

②

05

05

05

05

05

05

05

③

③

③

Y

Y

Y

Y

Y

Y

Y

④

④

④

S

S

S

S

S

S

S

⑤

⑤

⑤

2

2

2

2

2

2

W

W

W

W

W

W

W

⑥

⑥

⑥

⑥

①Product Series

②Input Voltage

③Output Voltage

④Wide (2:1) Input Range

⑤SIP Package Style ⑥ Rated Power

WIDE

WIDE

WIDE

WIDE INPUT,ISOLATED

INPUT,ISOLATED

INPUT,ISOLATED

INPUT,ISOLATED &

&

&

& REGULATED

REGULATED

REGULATED

REGULATED Dual/Single

Dual/Single

Dual/Single

Dual/Single Output

Output

Output

Output SIP

SIP

SIP

SIP DC/DC

DC/DC

DC/DC

DC/DC Converter

Converter

Converter

Converter

FEATURES

FEATURES

FEATURES

FEATURES

FEATURES

FEATURES

FEATURES

FEATURES

2 Watt load,-40°C to 85°C

DESCRIPTION

DESCRIPTION

DESCRIPTION

DESCRIPTION

DESCRIPTION

DESCRIPTION

DESCRIPTION

DESCRIPTION

The WRA_YS-2W&WRB_YS-2W 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 wide

range

(voltage range ≤2:1);

2) where isolation is necessary between input and output

(isolation voltage ≤1500VDC);

3) where the regulation of the output voltage and the

output ripple noise are demanded.

MICRODC reserves the copyright

OUTPUT

OUTPUT

OUTPUT

OUTPUT

OUTPUT

OUTPUT

OUTPUT

SPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONS

Parameter

Parameter

Parameter

Parameter

Test

Test

Test

Test conditions

conditions

conditions

conditions

Min.

Min.

Min.

Min.

Typ.

Typ.

Typ.

Typ.

Max.

Max.

Max.

Max.

Units

Units

Units

Units

Output power

Refer to product program

0.2

2

W

Line regulation

Input voltage from low to high

±0.2

±0.5

%

Load regulation

10% to 100% full load(WRB_YS-2W)

±0.5

±0.75

%

10% to 100% full load(WRA_YS-2W)*

±0.5

±1.0

%

Output voltage accuracy

Refer to recommended circuit

±1

±3.0

%

Temperature drift(Vout)

Refer to recommended circuit

±0.03

%/°C

Output Ripple**

20MHz Bandwidth

25

75

MV p-p

Output Noise**

20MHz Bandwidth

25

75

MV p-p

Switching frequency

100% Full load,input voltage range

300

Khz

*

Dual output models unbalanced load (25/100%):±5%Max

* *Test ripple and noise by "parallel cable" method. See detailed operation instructions at Testing of Power

Converter section, application notes.