SWI20CB-T-NW

**date** 08/13/2025 **page** 1 of 4 

## **SERIES:** SWI20CB-N **DESCRIPTION:** AC-DC POWER SUPPLY **│** 

## **FEATURES** 

- up to 20W of continuous power 

- universal input voltage range 

- US fixed blade input 

- integrated USB Type C receptacle 

- USB Power Delivery (PD) 

- 5,9,12 Vdc output 

- over-voltage, short circuit, over current protection 

- certified to UL 62368-1 

- customization available 

|**MODEL**|**input**<br>**voltage**|**input**<br>**frequency**|**output**<br>**voltage**|**output**<br>**current**|**output**<br>**power**|**ripple**<br>**and noise1**|**efficiency**<br>**level**|
|---|---|---|---|---|---|---|---|
||**range**|**range**|**typ**|**max**|**max**|**max**||
||(Vac)|(Hz)|(Vdc)|(A)|(W)|(mVp-p)||
||90 ~ 264|47 ~ 63|5|3.0|15|120|VI|
|SWI20CB-T-N|90 ~ 264|47 ~ 63|9|2.22|20|180|VI|
||90 ~ 264|47 ~ 63|12|1.67|20|200|VI|



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. 

## **PART NUMBER KEY** 

## **- SWI20CB T - N X X - CXX** 

Base Number 

Reserved for Custom Configurations 

AC Input Type: Case color: Detachable output cords: North America “blank” = black U = USB C to USB C (1 m length) W = white V = USB C to USB C (1.5 m length) 

Note: The color of the DC cord matches the color of the product. 

**belfuse** .com 

**CUI Inc │ SERIES:** SWI20CB-N **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 08/13/2025 **│ page** 2 of 4 

|**INPUT**|||||||
|---|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**||**typ**|**max**|**units**|
|voltage|||90<br>100~240||264|Vac|
|frequency|||47|50~60|63|Hz|
|current|at 100 ~ 240 Vac||||0.6|A|
|leakage current|||||0.25|mA|
|no load power consumption|at 230 Vac||||0.1|W|
|**OUTPUT**|||||||
|**parameter**|**conditions/description**|**min**||**typ**|**max**|**units**|
|load regulation||||±5||%|
|line regulation||||±5||%|
|start-up time|||||3|s|
|rise time|||||100|ms|
|hold-up time|at 115 ~ 230 Vac, full load||8|||ms|
|**PROTECTIONS**|||||||
|**parameter**|**conditions/description**|**min**||**typ**|**max**|**units**|
|over voltage protection|internal protection clamp||||||
|over current protection|auto recovery or latch mode||||4.5|A|
|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<br>input to output at 5 mA for 2 seconds|||3,000<br>3,600||Vac<br>Vac|
|safety approvals|certifed to 62368-1: UL<br>cUL/UL||||||
|EMI/EMC|EN 55032 Class B FCC PART 15 Class B, NRCan||||||
|ESD|EN 55035, EN 61000-4-2 contact: ±5 kV, air: ±10 kV, perf. Criteria|||B|||
|radiated immunity|EN 55035, EN 61000-4-3 frequency: 80~1000MHz, feld strength: 3V/M, 80% AM (1KHz),<br>perf. Criteria A||||||
|EFT/Burst|EN 55035, EN 61000-4-4 power line 1 kV, perf. Criteria B||||||
|surge|EN 55035, EN 61000-4-5 power line 1 kV, line to earth 2||kV, +90° / -270°||||
|conducted immunity|EN 55035, EN 61000-4-6 frequency range: 150 kHz ~ 230 MHz,<br>feld strength: 3A/m with 80% amplitude modulation of 1kHz, perf.|||Criteria A|||
|MTBF|as per Telcordia SR-332 Issue 3, full load, at 25°C|300,000||||hours|
|RoHS|yes||||||
|**ENVIRONMENTAL**|||||||
|**parameter**|**conditions/description**|**min**||**typ**|**max**|**units**|
|operating temperature|||0||40|°C|
|storage temperature||-20|||70|°C|
|operating humidity|non-condensing||5||95|%|
|storage humidity|non-condensing||5||95|%|



**belfuse** .com 

**CUI Inc │ SERIES:** SWI20CB-N **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 08/13/2025 **│ page** 3 of 4 

## **MECHANICAL** 

|**MECHANICAL**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|dimensions|48.0 (L) x 43.0 (W) x 20.0 (H)||||mm|
|inlet plug|2 pin, US|||||
|output connector|USB type-C|||||
|weight|||42.9||g|



## **MECHANICAL DRAWING** 

units: mm 

## **DC CORD** 

Plugs: USB-C to USB-C Length: 1,000/1,500 mm Color: black/white 

**belfuse** .com 

**CUI Inc │ SERIES:** SWI20CB-N **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 08/13/2025 **│ page** 4 of 4 

## **REVISION HISTORY** 

|**rev.**|**description**|**date**|
|---|---|---|
|1.0|initial release|08/13/2025|



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

**==> picture [155 x 33] 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.