cui.com

date 12/19/2017

│ page 6 of 7

CUI Inc

│ SERIES: AE40-EW │ DESCRIPTION: DC-DC CONVERTER

Figure 1

Table 1

+Vo

-Vo

TVS

+

+INPUT

-INPUT

+V in

-Vin

MOV

C5

C6

RL

FUSE

NTC

EMC RECOMMENDED CIRCUIT

MOV

NTC

FU SE

C5

C6

TVS

RL

+Vin

-Vin

+Vo

-Vo

+

+

+

+

+INPUT

-INPUT

R1

R2

R3

R4

C1

C2

C3

C4

LCM

Table 2

Figure 2

Recommended External Circuit Components

FUSE

3.5 A / 1500 Vdc

MOV

S20K1000

NTC

10D-20

LCM

10 mH

C1, C2, C3, C4

47 µF/450 V

R1, R2, R3, R4

1 MΩ/2 W

Vout

(Vdc)

Fuse

MOV

NTC

C5

(µF)

C6

(µF)

TVS

12

3.5 A / 1500 Vdc

S20K1000

10D-20

1

220

SMBJ20A

15

3.5 A / 1500 Vdc

S20K1000

10D-20

1

220

SMBJ20A

24

3.5 A / 1500 Vdc

S20K1000

10D-20

1

120

SMBJ30A

APPLICATION CIRCUIT

Note: See also Table 1.

Notes:

1. C5 is a ceramic capacitor used to filter high frequency noise.

2. C6 is electrolytic and is recommended to be high frequency and low resistance. For capacitance and current of the capacitor, refer to the datasheet provided by the

manufacturer. Capacitance withstand voltage derating should be 80% or above.

For more information, please visit the product page.