DC/DC Converter

WRA_S-1WR2 & WRB_S-1WR2 Series

2015.08.26-A/4

Page 3 of 6

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Physical Specifications

Casing Material

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

Dimension

22.00*9.50*12.00 mm

Weight

4.90g(Typ.)

Cooling Method

Free convection

EMC Specifications

EMI

CE

CISPR22/EN55022 CLASS B (see Fig. 3-② for recommended circuit)

RE

CISPR22/EN55022 CLASS B (see Fig. 3-② for recommended circuit)

EMS

ESD

IEC/EN61000-4-2

Contact ±4KV

perf. Criteria B

RS

IEC/EN61000-4-3

10V/m

perf. Criteria A

EFT

IEC/EN61000-4-4

±2KV (see Fig. 3-① for recommended circuit)

perf. Criteria B

Surge

IEC/EN61000-4-5

±2KV (see Fig. 3-① for recommended circuit)

perf. Criteria B

CS

IEC/EN61000-4-6

3 Vr.m.s

perf. Criteria A

Voltage dips, short interruptions

and voltage variations immunity

IEC/EN61000-4-29 0%-70%

perf. Criteria B

Product Characteristic Curve

Environment Temperature.( )

℃

Temperature Derating Curve

120

100

80

60

40

20

0

-40

0

40

85

Safe Operation Area

60

Fig 1