date

01/18/2012

│ page 4 of 4

CUI Inc

│ SERIES: VSKM-S5 Series │ DESCRIPTION: MEDICAL SWITCHING POWER SUPPLY

CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website.

CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is

assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use.

CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical

component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to

affect its safety or effectiveness.

Headquarters

20050 SW 112th Ave.

Tualatin, OR 97062

800.275.4899

Fax 503.612.2383

cui.com

techsupport@cui.com

+V0

-V0

L

N

NF

C8

C6

C7

+

TYPICAL APPLICATION CIRCUIT

EXTERNAL CAPACITORS TYPICAL VALUE (Unit: μF)

MODEL

C1

C2

VSKM-S5-3R3U

47

0.1

VSKM-S5-5U

47

0.1

VSKM-S5-9U

33

0.1

VSKM-S5-12U

33

0.1

VSKM-S5-15U

33

0.1

VSKM-S5-24U

10

0.1

Notes:

1. Output filtering capacitor C1 is an electrolytic capacitor. It is recommended to use high frequency

and low impedance electrolytic capacitors. For capacitance and current of capacitor please refer to

manufacture’s datasheet. Voltage derating of capacitor should be 80% or above. C2 is ceramic

capacitor, it is used to filter high frequency noise.

2. It is recommended to use a 1A/250V slow blow FUSE. External input NTC is recommended to use

5D-14 or 10Ω/2W wire-round resistor.

3. If EMC performance is required, it is recommended to add “EMC filter” at the input end (see EMC

Application Figure).

C6: X capacitor, recommended parameter 0.1μF/275V;

C7,C8: Y capacitor, recommended parameter 2200pF/400V;

CY:Y capacitor, recommended parameter 102K/400V

NF: common model choke, recommended inductance is about 10mH-30mH.

rev.

description

date

1.0

initial release

01/16/2012

The revision history provided is for informational purposes only and is believed to be accurate.

REVISION HISTORY