# AC/DC Open Frame Power Supply (PSU), Board Mount, ITE & Industrial, 1 Output, 4 W

![Product image](https://novapart.co/image/farnell:4312404/)

**URL**: https://novapart.co/products/VOF-4-12-P/ac-dc-open-frame-power-supply-psu-board-mount-ite
**SKU**: VOF-4-12-P
**Manufacturer**: CUI
**Category**: Power & Line Protection || Power Supplies || AC / DC Converters || AC / DC Open Frame Power Supplies
**Price**: €9.3300
**Stock**: 10+
**Lead Time**: 134 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | Lead (21-Jan-2025) |
| Product Range | VOF-4 Series |
| No. Of Outputs | 1 Output |
| Input Voltage Vac | 85V AC to 305V AC |
| Power Supply Output Type | Fixed |
| Output Current - Output 1 | 333mA |
| Output Current - Output 2 | - |
| Output Current - Output 3 | - |
| Output Current - Output 4 | - |
| Output Voltage - Output 1 | 12VDC |
| Output Voltage - Output 2 | - |
| Output Voltage - Output 3 | - |
| Output Voltage - Output 4 | - |
| Power Supply Applications | ITE & Industrial |
| Power Rating (Forced Cooling) | - |
| Power Rating (Convection Cooling) | 4W |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4312404/)

Additional Resources:    Product Page ~~Be~~ |    3D Model |    PCB Footprint 

**date** 10/09/2023 **page** 1 of 7 

## **SERIES:** VOF-4 **DESCRIPTION:** INTERNAL AC-DC POWER SUPPLY **│** 

## **FEATURES** 

- univeral Input Range from 85~305 Vac 

- high Efficiency up to 82% 

- no load power <0.075W 

- operating altitude up to 5,000m 

- certified to EN/UL 62368-1 

- over voltage category OVC II and OVC III 

- continuous short circuit and over voltage protection 

|**MODEL**|**output**<br>**voltage**|**output**<br>**current**|**output**<br>**power**|**ripple**<br>**and noise1**|**efficiency2**|
|---|---|---|---|---|---|
|||**max**|**max**|**max**|**typ**|
||(Vdc)|(A)|(W)|(mVp-p)|**(%)**|
|VOF-4-3|3.3|1.2|4|100|74|
|VOF-4-5|5|0.8|4|100|77|
|VOF-4-12|12|0.333|4|120|81|
|VOF-4-15|15|0.266|4|150|81|
|VOF-4-24|24|0.166|4|240|82|



Note:    1. Ripple and noise are measured at 20 MHz BW with 10 uF aluminum electrolytic capacitor and 0.1 uF ceramic capacitor on the output (For 3.3 Vdc output model 47 uF aluminum electrolytic capacitor and 0.1 uF ceramic capacitor.). 

2. At 230 Vac input and full load, 25°C. 

3. Chassis mount version wafer with JST B3B-PH / B2B-PH and mate with JST PH series or equivalent. 

## **PART NUMBER KEY** 

## **- - VOF 4 XX - XX** 

Base Number 

Output Voltage 

Mounting style: “blank” = chassis mount P = board mount 

**cui** .com 

Additional Resources:    Product Page    |    3D Model |    PCB Footprint 

**CUI Inc │ SERIES:** VOF-4 **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 10/09/2023 **│ page** 2 of 7 

## **INPUT** 

|**INPUT**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|input voltage||85<br>120||305<br>431|Vac<br>Vdc|
|operating voltage||100||277|Vac|
|frequency||50||60|Hz|
|current|at 100 Vac, full load|||0.25|A|
|inrush current|at 240 Vac, cold start, 25°C|||70|A|
|leakage current||||0.1|mA|
|no load power consumption||||0.075|W|



## **OUTPUT** 

|**OUTPUT**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
||3.3 Vdc output model|||1,200|μF|
||5 Vdc output model|||800|μF|
|capacitive load|12 Vdc output model|||330|μF|
||15 Vdc output model|||266|μF|
||24 Vdc output model|||166|μF|
||at full load|||||
|initial set point accuracy|3.3 Vdc output model<br>5 Vdc output model||±5<br>±4||%<br>%|
||all other output models||±3||%|
||at nominal input|||||
||3.3 Vdc output model|3.135|3.3|3.465|Vdc|
|output voltage set point|5 Vdc output model<br>12 Vdc output model|4.80<br>11.64|5.0<br>12|5.20<br>12.36|Vdc<br>Vdc|
||15 Vdc output model|14.55|15|15.45|Vdc|
||24 Vdc output model|23.28|24|24.72|Vdc|
|line regulation|from high to low line, full load|||±1|%|
||0%~100% load|||||
|load regulation|3.3 Vdc output model<br>5 Vdc output model|||±5<br>±4|%<br>%|
||all other output models|||±3|%|
|switching frequency|max rated power||43||kHz|
|hold-up time|at 115 Vac||16||ms|
|**PROTECTIONS**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
||built-in a TVS component to clamp output voltage|||||
||3.3 Vdc output model|6.45||7.14|Vdc|
|over voltage protection|5 Vdc output model<br>12 Vdc output model|6.45<br>14.3||7.14<br>15.8|Vdc<br>Vdc|
||15 Vdc output model|17.1||19.5|Vdc|
||24 Vdc output model|28.5||31.5|Vdc|
|over current protection|auto recovery, hiccup|110||180|%|
|short circuit protection|auto recovery|||||
|**SAFETY & COMPLIANCE**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|isolation voltage|input to output for 1 minute|||3,000|Vac|
|safety approvals|certifed to 62368-1: EN/UL|||||



**cui** .com 

Additional Resources:    Product Page    |    3D Model |    PCB Footprint 

**CUI Inc │ SERIES:** VOF-4 **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 10/09/2023 **│ page** 3 of 7 

## **SAFETY & COMPLIANCE** 

|safety class|Class II|||||
|---|---|---|---|---|---|
|conducted emission|EN 61204-3:2018, EN 61000-6-3:2021, EN 61000-6-4:2019, Class B|||||
|radiated emissions|EN 61204-3:2018, EN 61000-6-3:2021, EN 61000-6-4:2019, Class B|||||
|ESD|IEC 61000-4-2:2008, perf. Criteria A|||||
|radiated immunity|IEC 61000-4-3:2020, perf. Criteria A|||||
|EFT/burst|IEC 61000-4-4:2012, ±1kV, ±2kV, perf. Criteria A|||||
|surge|IEC 61000-4-5:2014+A1:2017, L-N: ±0.5kV, ±1kV, perf. Criteria A|IEC 61000-4-5:2014+A1:2017, L-N: ±0.5kV, ±1kV, perf. Criteria A||||
|conducted immunity|IEC 61000-4-6:2013+COR1:2015, perf. Criteria A|||||
|voltage dips|IEC 61000-4-11:2020, Dip: 30% Reduction, Dip >95% Reduction, perf. Criteria A|||||
|voltage interruption|IEC 61000-4-11:2020, >95% Reduction, perf. Criteria B|||||
|MTBF|per MIL-HDBK-217F at 25 °C|2,200,000|||hours|
|RoHS|yes|||||
|**ENVIRONMENTAL**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|operating temperature|(see derating curve)|-40||80|°C|
|storage temperature||-40||85|°C|
|storage humidity||0||95|%|



## **DERATING CURVES** 

**cui** .com 

Additional Resources:    Product Page    |    3D Model |    PCB Footprint 

**CUI Inc │ SERIES:** VOF-4 **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 10/09/2023 **│ page** 4 of 7 

## **EFFICIENCY CURVES** 

**cui** .com 

Additional Resources:    Product Page    |    3D Model |    PCB Footprint 

**CUI Inc │ SERIES:** VOF-4 **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 10/09/2023 **│ page** 5 of 7 

## **MECHANICAL** 

|**MECHANICAL**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**<br>**min**||**typ**|**max**|**units**|
|dimensions|chassis mount<br>board mount|1.95 x 0.71 x 0.689 [49.5 x 18.0 x 17.5 mm]<br>1.56 x 0.76 x 0.72 [39.5 x 19.4 x 18.30 mm]|||inch<br>inch|
|weight|chassis mount<br>board mount||12<br>10||g<br>g|



## **MECHANICAL DRAWING (CHASSIS MOUNT)** 

units: inches: x.xx = ±0.03, x.xxx = ±0.020 mm: x.x = ±0.7, x.xx = ±0.50 

|PIN CONNECTIONS|PIN CONNECTIONS|PIN CONNECTIONS|
|---|---|---|
|PIN|Function|Connector|
|1|AC (N)|CN1|
|2|AC (L)||
|3|+Vout|CN2|
|4|-Vout||



**cui** .com 

Additional Resources:    Product Page    |    3D Model |    PCB Footprint 

**CUI Inc │ SERIES:** VOF-4 **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 10/09/2023 **│ page** 6 of 7 

## **MECHANICAL DRAWING (BOARD MOUNT)** 

units: inches: x.xx = ±0.03, x.xxx = ±0.020 mm: x.x = ±0.7, x.xx = ±0.50 

|PIN CONNECTIONS|PIN CONNECTIONS|
|---|---|
|PIN|Function|
|1|AC (N)|
|2|AC (L)|
|3|+Vout|
|4|-Vout|



**cui** .com 

Additional Resources:    Product Page    |    3D Model |    PCB Footprint 

**CUI Inc │ SERIES:** VOF-4 **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 10/09/2023 **│ page** 7 of 7 

## **REVISION HISTORY** 

|**rev.**|**description**|**date**|
|---|---|---|
|1.0|initial release|10/09/2023|



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

**==> picture [155 x 34] intentionally omitted <==**

**Headquarters** 20050 SW 112th Ave. Tualatin, OR 97062 **800.275.4899** 

Fax 503.612.2383 **cui** .com techsupport@cui.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. 



## Links

- [View this product on Novapart](https://novapart.co/products/VOF-4-12-P/ac-dc-open-frame-power-supply-psu-board-mount-ite)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/cui/vof-4-12-p/power-supply-ac-dc-12v-0-333a/dp/4312404)
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