SMI12-12-KW-P5

**date** 06/09/2025 **page** 1 of 6 

## **SERIES:** SMI12 **DESCRIPTION:** EXTERNAL AC-DC POWER SUPPLY **│** 

## **FEATURES** 

- up to 12 W continuous power 

- DoE Level VI, CoC Tier 2 efficiency 

- universal input voltage range 

- interchangeable Ac blades for global use 

- over voltage, over current, and short circuit protections 

- UL/cUL, CE, PSE, RCM & FCC safety approvals 

- IEC 62368 certified 

- white and black case options 

|**MODEL**|**output**<br>**voltage**|**output**<br>**current**|**output**<br>**power**|**ripple**<br>**and noise**|**efficiency**<br>**level**|
|---|---|---|---|---|---|
|||**max**|**max**|**max**||
||(Vdc)|(A)|(W)|(mVp-p)||
|SMI12-5|5|2.0|10.0|200|VI|
|SMI12-9|9|1.33|11.97|300|VI|
|SMI12-12|12|1.0|12.0|300|VI|



## **PART NUMBER KEY** 

## **- - - - SMI12 XX X X XXX CXX** 

Base Number 

Reserved for Custom Configurations 

Output Voltage 

Case Color: B = black W = white 

Blades: 

V = North America, Europe, United Kingdom, Australia, and China blade included 4 = North America, Europe, United Kingdom and Australia blade included 

See output plug options on page 5 

- N = North America blade included 

- E = Europe blade included 

- B = United Kingdom blade included 

- A = Australia blade included 

- C = China blade included 

- K = No blades included 

**cui** .com 

**CUI Inc │ SERIES:** SMI12 **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 06/09/2025 **│ page** 2 of 6 

|**INPUT**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|voltage||90|100~240|264|Vac|
|frequency||47|50~60|63|Hz|
|current||||0.5|A|
|leakage current|at nominal ac input voltage and frequency|||0.25|mA|
|no load power consumption||||0.075|W|
|**OUTPUT**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|load regulation|||5||%|
|start-up time|at nominal ac input voltage|||3|s|
|rise time|at nominal input voltage|||100|ms|
|hold-up time|at nominal input voltage|5|||ms|
|**PROTECTIONS**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|short-circuit protection|auto recovery|||||
|over-voltage protection||||12|V|
|over-current protection|auto recovery|||3|A|
|**SAFETY & COMPLIANCE**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|isolation voltage|10mA for 1 minute|3,000|||Vac|
|safety approvals|certified to 62368: IEC<br>UL/cUL, CE, RCM, PSE, UKCA|||||
|EMI/EMC|EN 55032:2015, EN 55034:2010+A1:2015, FCC|||||
|MTBF|as per Telcordia SR-332, Issue 2 at 115/230 Vac,<br>full load, 0~40°C|50,000|||hours|
|RoHS|yes|||||
|**ENVIRONMENTAL**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|operating temperature||0||40|°C|
|storage temperature||-20||60|°C|
|operating humidity||20||85|%|
|storage humidity||5||95|%|



**cui** .com 

**CUI Inc │ SERIES:** SMI12 **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 06/09/2025 **│ page** 3 of 6 

## **MECHANICAL** 

|**MECHANICAL**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|dimensions|70 x 32.8 x 48.5||||mm|
|inlet plug|multi-blade wall mount|||||
|ac blade clip type|hidden clip|||||
|weight|||89||g|



## **MECHANICAL DRAWING** 

units: mm tolerance: ±1 

|INTERCHANGEABLE BLADES<br>~~eee~~<br>~~a~~<br>~~ee~~<br>~~eeee~~<br>~~ee~~|INTERCHANGEABLE BLADES<br>~~eee~~<br>~~a~~<br>~~ee~~<br>~~eeee~~<br>~~ee~~|INTERCHANGEABLE BLADES<br>~~eee~~<br>~~a~~<br>~~ee~~<br>~~eeee~~<br>~~ee~~|INTERCHANGEABLE BLADES<br>~~eee~~<br>~~a~~<br>~~ee~~<br>~~eeee~~<br>~~ee~~|INTERCHANGEABLE BLADES<br>~~eee~~<br>~~a~~<br>~~ee~~<br>~~eeee~~<br>~~ee~~|INTERCHANGEABLE BLADES<br>~~eee~~<br>~~a~~<br>~~ee~~<br>~~eeee~~<br>~~ee~~|
|---|---|---|---|---|---|
|BLADE<br>DESIGNATOR<br>~~a~~|N<br>~~ee~~|E<br>~~ee~~|B<br>~~ee~~|A<br>~~ee~~|C|
|REGION<br>~~a~~<br>~~OO~~<br>~~ee~~|North America<br>~~ee~~<br>~~OO~~<br>~~ee~~|Europe<br>~~ee ~~<br>~~OO~~<br>~~ee~~|UK<br> ~~ee~~<br>~~OO~~<br>~~ee~~|Australia<br>~~ee~~<br>~~OO~~<br>~~ee~~|China<br>~~OO~~|
|BLADE ACCESSORY<br>BLACK CASE<br>~~ee~~|SMI-US-3L<br>~~ee~~|SMI-EU-3L<br>~~ee~~|SMI-UK-3L<br>~~ee~~|SMI-AU-3L<br>~~ee~~|SMI-CN-3L|
|BLADE ACCESSORY<br>WHITE CASE<br>~~ee~~|SMI-US-3L-W<br>~~ee~~|SMI-EU-3L-W<br>~~ee~~|SMI-UK-3L-W<br>~~ee~~|SMI-AU-3L-W<br>~~ee~~|SMI-CN-3L-W|
|BLADE|Jc)<br>|)<br>i,<br>)——<br>I||) fe <br>ane<br>—«|Lt]<br>ane NG<br>Lf<br>J|am<br>NG|im<br>j—||



**cui** .com 

**CUI Inc │ SERIES:** SMI12 **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 06/09/2025 **│ page** 4 of 6 

## **DC CORD** 

units: mm 

cord length 

## **Table 1** 

||**Table 1**||
|---|---|---|
|**MODEL NO.**|**CABLE**|**CORD LENGTH**|
|SMI12-5|20 AWG/2C 2468|1,500 mm ±50|
|SMI12-9|22 AWG/2C 2468|1,500 mm ±50|
|SMI12-12|24 AWG/2C 2468|1,500 mm ±50|



## **DC PLUG TYPE PART NUMBER KEY** 

## **X X X** 

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**----- Start of picture text -----**<br>
Plug Polarity: Plug Code: Plug Angle:<br>P = Center Positive X = Choose a code from the  “blank” = Straight<br>options below R = Right Angle<br>N = Center Negative<br>Plug Polarity Code Dimensions (mm) Plug Angle<br>Center Pos. Center Neg. Option Type A B C Straight Right<br>● ● 5 Standard 5.5 2.1 9.5 ● ●<br>● ● 6 Standard 5.5 2.5 9.5 ● ●<br>● ● 7 Standard 3.5 1.35 9.5 ● ●<br>● ● 10 Locking [2] 5.5 2.1 9.5 ● N/A<br>● ● 11 Locking [2] 5.5 2.5 9.5 ● N/A<br>● ● 12 EIAJ-1 2.35 0.7 9.5 ● ●<br>● ● 13 EIAJ-2 4.0 1.7 9.5 ● ●<br>● ● 14 EIAJ-3 4.75 1.7 9.5 ● ●<br>N/A N/A CUB USB [3] USB Type C ● N/A<br>N/A N/A MUB USB [3] Micro USB Type B ● N/A<br>**----- End of picture text -----**<br>


Note:        1. Contact CUI for additional plug options 

2. Maximum insertion depth is 10mm 

3. 5V maximum for USB and Micro USB connectors 

**cui** .com 

**CUI Inc │ SERIES:** SMI12 **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 06/09/2025 **│ page** 5 of 6 

## **DC PLUG TYPE** 

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**----- Start of picture text -----**<br>
Standard  EIAJ<br>C C C C<br>Straight  Right Angle (R) Straight  Right Angle (R)<br>Locking  USB<br>6.7±0.3 5.8±0.5<br>C 2.5±0.3<br>VBUS: A4,A9,B4,B9<br>GND: A1,A12,B1,B12 P5(-) P1(+)<br> USB Type C Micro USB Type B<br>A B<br>A B A B<br>A B<br>A B<br>**----- End of picture text -----**<br>


**cui** .com 

**CUI Inc │ SERIES:** SMI12 **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 06/09/2025 **│ page** 6 of 6 

## **REVISION HISTORY** 

|**rev.**|**description**|**date**|
|---|---|---|
|1.0|initial release|07/09/2020|
|1.01|tolerance updated|01/12/2021|
|1.02|AC blades updated|08/10/2021|
|1.03|UKCA added to specifcation|08/12/2021|
|1.04|DCplugs updated|04/25/2022|
|1.05|operatingand storage temperature updated|06/06/2022|
|1.06|AC blade cliptype added|06/23/2022|
|1.07|datasheet updated|11/19/2024|
|1.08|Note 3 added to DCplugtype table|06/09/2025|



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

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15575 SW Sequoia Pkwy #100 Portland, OR 97224 800.275.4899 

Fax 503.612.2383 Belfuse.com powersupport@belf.com 

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.