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URA_(X)D-10WR2 & URB_(X)D-10WR2

2013.05.21-A/4

Page 3 of 7

EMC SPECIFICATIONS

CE

CISPR22/EN55022

CLASS A（Without External Circuit）/ CLASS B（External Circuit Refer to Figure1-② or Figure 3）

EMI

RE

CISPR22/EN55022

CLASS A（Without External Circuit）/ CLASS B（External Circuit Refer to Figure1-② or Figure 3）

ESD

IEC/EN61000-4-2

Contact

±4KV

perf. Criteria B

RS

IEC/EN61000-4-3

10V/m

perf. Criteria A

IEC/EN61000-4-4

±2KV

perf. Criteria B（External Circuit Refer to Figure1-①）

EFT

IEC/EN61000-4-4

±4KV

perf. Criteria B（External Circuit Refer to Figure 3）

EMS

Surge

IEC/EN61000-4-5

±2KV

perf. Criteria B（External Circuit Refer to Figure1-①or Figure 3）

CS

IEC/EN61000-4-6

3 Vr.m.s

perf. Criteria A

EMS

Voltage dips, short

and interruptions

immunity

IEC/EN61000-4-29

0%-70%

perf. Criteria B

EMC RECOMMENDED CIRCUIT

LDM2

②

C0

TVS

LDM1

MOV

FUSE

①

C1

V in

GND

+

Vin

GND

+Vo

- Vo

(0V)

EUT

LOAD

CY2

CY1

(Figure1)

Recommended external circuit param eters:

Model

Vin:24V

Vin:48V

FUSE

Choose according to actual input current

MOV

S14K35

S14K60

LDM1

56

μH

TVS

SMCJ48A

SMCJ90A

C0

330

μF/50V

330

μF/100V

C1

1

μF/50V

1

μF/100V

LDM2

4.7

μH

CY1

1nF /2KV

CY2

1nF /2KV

Note: In Figure 1,part

is EMS recommended external circuit, part

is EMI recommended external circuit. Choose according to requirements.

①②

EMC RECOMMENDED CIRCUIT PCB LAYOUT

DUAL

SINGLE

Note: The pad space between input and output (CY1/CY2) must

≥2mm.

(Figure 2)