DC/DC Converter

E_S-2WR2 & F_S-2WR2 series

2015.04.17-A/2

Page 3 of 5

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Operating Temperature

Derating when operating temperature up to85℃,(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-HDFK-217F@25℃

3500

--

--

K hours

Physical Specifications

Casing Material

Plastic (UL94-V0)

Package Dimensions

19.65*7.05*10.16 mm

Weight

2.4g (Typ.)

Cooling Method

Free air convection

EMC Specifications

EMI

CE

CISPR22/EN55022 CLASS B (see Fig. 4 for recommended circuit)

RE

CISPR22/EN55022 CLASS B (see Fig. 4 for recommended circuit)

EMS

ESD

E_S-2WR2

IEC/EN61000-4-2

Contact ±6KV

perf. Criteria B

F_S-2WR2

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

040

85 105 120

Fig. 2