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SMI6D-12-K-P5
AC/DC Power Supply, ITE, 1 Output, 6 W, 12 V, 500 mA
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: CUI
- Product type: AC / DC External Plug In Adaptor Power Supplies
- SVHC: No SVHC (04-Feb-2026)
- Plug Type: -
- Product Range: SMI6D Series
- No. of Outputs: 1 Output
- Output Connector: Barrel Plug Centre Positive 2.1mm x 5.5mm x 9.5mm
- Output Power Max: 6W
- Input Voltage VAC: 90V AC to 264V AC
- Power Supply Output Type: Fixed
- Output Current - Output 1: 500mA
- Output Current - Output 2: -
- Output Current - Output 3: -
- Output Voltage - Output 1: 12V
- Output Voltage - Output 2: -
- Output Voltage - Output 3: -
- Power Supply Applications: ITE
| Delivery and price | |
|---|---|
| Units per pack | 250 |
| Price | 4.85 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**date** 01/04/2026 **page** 1 of 6
## **SERIES:** SMI6D **DESCRIPTION:** AC-DC POWER SUPPLY **│**
## **FEATURES**
- up to 6 W continuous power
- DoE Level VI efficiency
- interchangeable AC blades
- no load power consumption <0.1W
- universal input voltage range
- LPS rated
- over voltage and short circuit, and over current protections
- UL/cUL & CE safety approvals
- certified to UL/EN/IEC 62368-1
|**MODEL**|**input**<br>**voltage**|**input**<br>**frequency**|**output**<br>**voltage**|**output**<br>**current**|**output**<br>**power**|**ripple**<br>**and**|**efficiency**<br>**level2**|**no load**<br>**power**|
|---|---|---|---|---|---|---|---|---|
|||||||**noise1**||**consumption**|
||**range**|**range**|**nom**|**max**|**max**|**max**|**typ**|**typ**|
||(Vac)|(Hz)|(Vdc)|(A)|(W)|(mVp-p)|(%)|(W)|
|SMI6D-5|90 ~ 264|47 ~ 63|5.0|1.0|5.0|100|73.62|0.1|
|SMI6D-5B|90 ~ 264|47 ~ 63|5.0|1.2|6.0|120|75.18|0.1|
|SMI6D-5.9|90 ~ 264|47 ~ 63|5.9|1.0|5.9|120|75.05|0.1|
|SMI6D-7.5|90 ~ 264|47 ~ 63|7.5|0.8|6.0|120|78.88|0.1|
|SMI6D-9|90 ~ 264|47 ~ 63|9.0|0.66|5.94|150|78.97|0.1|
|SMI6D-12|90 ~ 264|47 ~ 63|12.0|0.5|6.0|150|78.88|0.1|
Notes: 1. At full load, nominal AC input voltage, 25°C, 20 MHz bandwidth oscilloscope, output terminated with 0.1 µF ceramic and 10 µF aluminum electrolytic capacitors.
2. Average efficiency is measured at 115V/60Hz and 230V/60Hz, 25%, 50%, 75%, and 100% load.
## **PART NUMBER KEY**
**- - - - SMI6D XX X X XXX CXX** Base Number Reserved for Custom Output Voltage Configurations ~~ae~~ Blades: Color: DC Plug Type: 3 = North America, Europe, United Kingdom “blank” = black XXX = See output plug options included W = white on page 5 for more details
- 4 = North America, Europe, United Kingdom, and Australia blades included
- V = North America, Europe, United Kingdom, Australia, and China blades included
- 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
**belfuse** .com
Please read our datasheet & drawing disclaimer here.
**CUI Inc │ SERIES:** SMI6D **│ DESCRIPTION:** AC-DC POWER SUPPLY
**date** 01/04/2026 **│ 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||||0.18|A|
|leakage current||||0.25|mA|
|no load power consumption||||0.1|W|
|**OUTPUT**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|line regulation|||±5||%|
|load regulation|||±5||%|
|start-up time|at nominal input voltage, full load|||3|s|
|rise time||||50|ms|
|hold-up time|at 100 Vac, full load|8|||ms|
|**PROTECTIONS**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|over voltage protection|clamped by internal protection|||||
|over current protection||110||200|%|
|short circuit protection|auto recovery|||||
|**SAFETY & COMPLIANCE**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|isolation voltage|input to output at 5 mA for 1 minute||3,000||Vac|
|safety approvals|certified to 62368-1: UL, EN, IEC|||||
|EMI/EMC|EN 55032 Class B, FCC PART 15 Class B, CE|||||
|ESD|IEC 61000-4-2 contact: ±4 kV, air: ±8 kv, perf.|Criteria A||||
|radiated immunity|IEC 61000-4-3 frequency: 80 ~ 1000 MHz, feld strength: 3V/M with 80% AM<br>EN 61000-4-3, EN 55035|||(1KHz), perf.|Criteria A|
|EFT/burst|EN 61000-4-4 power line: 1 kV, signal line: 0.5 kV, perf. Criteria B|||||
|surge|power line: 1 kV, line to earth: 2 kV, 90°/-270°|||||
|MTBF|as per Telcordia SR-332 (Issue 3),<br>at full load, 25°C|300,000|||hours|
|RoHS|yes|||||
|**ENVIRONMENTAL**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|operating temperature||0||50|°C|
|storage temperature||-20||80|°C|
|operating humidity|non-condensing|10||90|%|
|storage humidity|non-condensing|10||90|%|
**belfuse** .com
**CUI Inc │ SERIES:** SMI6D **│ DESCRIPTION:** AC-DC POWER SUPPLY
**date** 01/04/2026 **│ page** 3 of 6
## **MECHANICAL**
|**MECHANICAL**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|dimensions|55.1 x 37 x 42.95||||mm|
|inlet plug|interchangeable blades (NA, EU, UK, AU, CN)|||||
|ac blade clip type|hidden clip|||||
|weight||||60|g|
## **MECHANICAL DRAWING**
units: mm tolerance: ±1 mm
## INTERCHANGEABLE BLADES
|BLADE<br>DESIGNATOR||N|E|B|A|C|
|---|---|---|---|---|---|---|
|REGION|North America|North America|Europe|United Kingdom|Australia|China|
|BLADE<br>ACCESSORY|SMI-US-9||SMI-EU-9|SMI-UK-9|SMI-AU-9|SMI-CN-9|
||{|J|ee|Ne,||__annnnn<br>_}|
|BLADE|||||||
**belfuse** .com
**CUI Inc │ SERIES:** SMI6D **│ DESCRIPTION:** AC-DC POWER SUPPLY
**date** 01/04/2026 **│ page** 4 of 6
## **DC CORD**
units: mm
## **Table 1**
||**Table 1**||
|---|---|---|
|**MODEL NO.**|**CABLE**|**CORD LENGTH**|
|SMI6D-5|UL2468, 24 AWG|1,500 mm ±80|
|SMI6D-5B|UL2468, 22 AWG|1,500 mm ±80|
|SMI6D-5.9|UL2468, 24 AWG|1,500 mm ±80|
|SMI6D-7.5|UL2468, 22 AWG|1,500 mm ±80|
|SMI6D-9|UL2468, 24 AWG|1,500 mm ±80|
|SMI6D-12|UL2468, 24 AWG|1,500 mm ±80|
Note: The AWG may vary based on the specific DC connector used.
**belfuse** .com
**CUI Inc │ SERIES:** SMI6D **│ DESCRIPTION:** AC-DC POWER SUPPLY
**date** 01/04/2026 **│ page** 5 of 6
## **DC PLUG TYPE PART NUMBER KEY**
## **X X X**
**Plug Polarity: Plug Code: Plug Angle:** P = Center Positive X = Choose a code from the “blank” = Straight options below R = Right Angle N = Center Negative
|options below<br> <br>R = Right|options below<br> <br>R = Right|options below<br> <br>R = Right|options below<br> <br>R = Right|options below<br> <br>R = Right|options below<br> <br>R = Right|options below<br> <br>R = Right|options below<br> <br>R = Right|<br>Angle|
|---|---|---|---|---|---|---|---|---|
|N = Center Negative|||||||||
|**Plug Polarity**||**Code**||**Dimensions (mm)**|||**Plug Angle**||
|Center Pos.|Center Neg.|Option|Type|A|B|C|Straight|Right|
|●|●|5|Standard|5.5|2.1|9.5|●|●|
|●|●|6|Standard|5.5|2.5|9.5|●|●|
|●|●|7|Standard|3.5|1.35|9.5|●|●|
|●|●|8|Standard|3.8|1.35|9.5|●|●|
|●|●|9|Standard|3.8|1.05|9.5|●|●|
|●|●|10|Locking2|5.5|2.1|9.5|●|N/A|
|●|●|11|Locking2|5.5|2.5|9.5|●|N/A|
|●|●|13|EIAJ-2|4.0|1.7|9.5|●|●|
|●|●|14|EIAJ-3|4.75|1.7|9.5|●|●|
|N/A|N/A|ST|Stripped & Tinned||||N/A|N/A|
|N/A|N/A|M|USB|Micro USB Type B|||●|N/A|
|N/A|N/A|C|USB|USB Type C|||●|N/A|
Note: 1. Tip positive 2. Maximum insertion depth is 10mm
3. Contact BEL for additional plug options
**==> picture [557 x 251] intentionally omitted <==**
**----- Start of picture text -----**<br>
Standard EIAJ Stripped & Tinned<br>C C C C<br>Straight Right Angle (R) Straight Right Angle (R)<br>Locking USB<br>C measured with collar in locked position 6.70<br>C 5.4+0.4/-0 30.0±0.3 +0.25/-0.1<br>A12 A1<br>B1 B12<br>19.2±0.3<br>P5(-) P1(+)<br>Micro USB Type B Type C<br>A B<br>A B<br>A B A B<br>A B<br>**----- End of picture text -----**<br>
**belfuse** .com
**CUI Inc │ SERIES:** SMI6D **│ DESCRIPTION:** AC-DC POWER SUPPLY
**date** 01/04/2026 **│ page** 6 of 6
## **REVISION HISTORY**
|**rev.**|**description**|**date**|
|---|---|---|
|1.0|initial release|01/04/2026|
The revision history provided is for informational purposes only and is believed to be accurate.
**==> picture [122 x 39] intentionally omitted <==**
15575 SW Sequoia Pkwy #100 Fax 503.612.2383 Portland, OR 97224 Belfuse.com 800.275.4899 powersupport@belf.com
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
- (1) This device may not cause harmful interference, and
- (2) this device must accept any interference received, including interference that may cause undesired operation.
CUI offers a one (1) 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.
Updated at June 3, 2026
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