DC/DC Converter

B_S-1WR2 & B_D-1WR2 series

2018.04.13-B/1

Page 3 of 6

MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

Physical Specifications

Casing Material

Black flame-retardant and heat-resistant plastic (UL94-V0)

Dimensions

B_S-1WR2 series

11.60*6.00*10.16 mm

B_D-1WR2 series

12.70*10.16*8.20 mm

Weight

B_S-1WR2 series

1.3g(Typ.)

B_D-1WR2 series

1.8g(Typ.)

Cooling Method

Free air convection

EMC Specifications

EMI

CE

CISPR32/EN55032 CLASS B (see Fig. 4 for recommended circuit)

RE

CISPR32/EN55032 CLASS B (see Fig. 4 for recommended circuit)

EMS

ESD

IEC/EN61000-4-2

Contact ±8KV

perf. Criteria B

Product Characteristic Curve

3.3VDC output

-10%

80%

20%

10%

40%

60%

-5%

0

+5%

+10%

100%

Typ.

Min.

Max.

-15%

-7.5%

+1.0%

-15%

Tolerance Envelope Curve

Output Current Percentage

(Nominal Input Voltage)

Other output

-10%

80%

20%

10%

40%

60%

-5%

0

+5%

+10%

+15%

100%

Typ.

Min.

Max.

-7.5%

-2.5%

+2.5%

Output Current Percent

(Nominal Input Voltage)

Tolerance Envelope Curve

Fig. 1

120

100

80

60

40

20

0

Ambient Temp.( )

℃

Temperature Derating Curve

Safe Operating Area

-40

0

40

85 105 120

Fig. 2

General Specifications

Item

Operating Conditions

Min.

Typ.

Max.

Unit

Isolation Voltage

Input-output, with the test time of 1 minute and

the leak current lower than 1mA

1500

--

--

VDC

Isolation Resistance

Input-output, isolation voltage 500VDC

1000

--

--

MΩ

Isolation Capacitance

Input-output, 100KHz/0.1V

--

20

--

pF

Operating Temperature

Derating when operating temperature up to

85℃, (see Fig. 2)

-40

--

105

℃

Storage Temperature

-55

--

125

Casing Temperature Rise

Ta=25℃, nominal input, full load output

--

25

--

Pin Welding Resistance Temperature Welding spot is 1.5mm away from the casing,

10 seconds

--

--

300

Storage Humidity

Non-condensing

--

--

95

%RH

Switching Frequency

Full load, nominal input voltage

--

100

--

KHz

MTBF

MIL-HDBK-217F@25℃

3500

--

--

K hours