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B_S-1W&B_D-1W

B/2-2012

Page 3 of 5

EMC SPECIFICATIONS

EMI

CE

CISPR22/EN55022

CLASS A（External Circuit Refer to Figure1）

EMS

ESD

IEC/EN61000-4-2

Contact

±8KV perf. Criteria B

EMC RECOMMENDED CIRCUIT

EMI Recommended External Circuit:

V in

G ND

+ Vo

0V

EUT

L O AD

C1

V in

G ND

(Figure 1)

B_S-1W Series

Recommended external circuit parameters:

Vin：3.3V/5V/12V/15V/24V

C1：1

µF/50V

Note: Product bare input of 3V、5V、12V already

meet CLASS A, increase the capacitor margin

increase.

B_D-1W Series

Recommended external circuit parameters:

Vin 3.3V/5V：

C1：1

µF/50V

Vin ：12V/15V/24V

C1：2.2

µF/50V

Note: Product bare input of 3.3V already meet

CLASS A, increase the capacitor margin increase.

PRODUCT TYPICAL CURVE

Tolerance Envelope Curve

+10%

+5%

50

100

+2.5%

-2.5%

-7.5%

Ra ted

Outp ut

Volta ge

Outp ut Cu rrent Percent(%)

Typical L

oad Line

70

(Nominal Input Voltage)

120

100

80

60

40

20

0

-40

0

40

85 105 120

Ambient Temp.()

℃

Temp erature D era ting C urve

Safe Oper ating Ar ea

Efficiency VS Input Voltage curve

(Full Load)

0

10

20

30

40

50

60

70

80

90

100

Input Voltage(V)

B0505S-1W

B0505D-1W

Efficiency VS Input Voltage curve

(Full Load)

0

10

20

30

40

50

60

70

80

90

100

Input Voltage(V)

B2405S-1W

B2405D-1W

Efficiency VS Output Load curve

(Vin=Vin-nominal)

0

10

20

30

40

50

60

70

80

90

100

10

20

30

40

50

60

70

80

90

100

Total Output Current (%)

B0505S-1W

B0505D-1W

Efficiency VS Output Load curve

(Vin=Vin-nominal)

0

10

20

30

40

50

60

70

80

90

100

10

20

30

40

50

60

70

80

90

100

Total Output Current (%)

B2405S-1W

B2405D-1W