# AC/DC Open Frame Power Supply (PSU), Chassis Mount, ITE, Industrial & Household, 1 Output, 50 W

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![Product image](https://novapart.co/image/farnell:4655579/)

**URL**: https://novapart.co/products/VOF-50E-48/ac-dc-open-frame-power-supply-psu-chassis-mount
**SKU**: VOF-50E-48
**Manufacturer**: CUI
**Category**: Power & Line Protection || Power Supplies || AC / DC Converters || AC / DC Open Frame Power Supplies
**Price**: €31.5500
**Stock**: 10+
**Lead Time**: 134 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | Lead (21-Jan-2025) |
| Product Range | VOF-50E Series |
| No. Of Outputs | 1 Output |
| Current, Output 4 | - |
| Input Voltage Vac | 85V AC to 264V AC |
| Power Supply Output Type | Fixed |
| Output Current - Output 1 | 1.04A |
| Output Current - Output 2 | - |
| Output Current - Output 3 | - |
| Output Voltage - Output 1 | 48V |
| Output Voltage - Output 2 | - |
| Output Voltage - Output 3 | - |
| Output Voltage - Output 4 | - |
| Power Supply Applications | ITE, Industrial & Household |
| Power Rating (Forced Cooling) | - |
| Power Rating (Convection Cooling) | 50W |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4655579/)

Additional Resources:    Product Page    |    3D Model 

**date** 12/12/2024 **page** 1 of 7 

## **SERIES:** VOF-50E **DESCRIPTION:** INTERNAL AC-DC POWER SUPPLY **│** 

## **FEATURES** 

- universal input range (85 ~ 264 Vac) 

- Class B emissions (EN 55032/CISPR) 

- certified to IEC/EN/UL 62368-1 

- designed to meet IEC/EN 60335 

- short circuit, over voltage protection 

- <0.15 W no-load power consumption 

- Class I or Class II 

- up to 5,000 m operating altitude 

- OVC III 

|**MODEL**|**output**<br>**voltage**|**output**<br>**current**|**output**<br>**power**|**ripple**<br>**and noise1**|**efficiency2**|
|---|---|---|---|---|---|
||**typ**|**max**|**max**|**max**|**typ**|
||(Vdc)|(A)|(W)|(mVp-p)|**(%)**|
|VOF-50E-5|5|8.0|40|150|85|
|VOF-50E-12|12|4.17|50|120|87|
|VOF-50E-15|15|3.33|50|150|88|
|VOF-50E-24|24|2.08|50|240|89|
|VOF-50E-36|36|1.39|50|360|89|
|VOF-50E-48|48|1.04|50|480|89|



- Notes: 1. At full load, nominal input, 20 MHz bandwidth oscilloscope with 0.1µF ceramic capacitor and 10 µF electrolytic capacitor. 

2. At 230 Vac input. 

3. All specifications are measured at Ta=25°C, humidity <75%, nominal input voltage, and rated output load unless otherwise specified. 

## **PART NUMBER KEY** 

## **- - - VOF 50E XX X** 

Base Number 

Output Voltage 

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

**cui** .com 

Additional Resources:    Product Page    |    3D Model 

**CUI Inc │ SERIES:** VOF-50E **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 12/12/2024 **│ page** 2 of 7 

## **INPUT** 

|**INPUT**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|voltage4|ac input (safety approved)<br>dc input|85<br>120|100~240|264<br>370|Vac<br>Vdc|
|frequency||47|50~60|63|Hz|
|current|at 100 Vac, full load|||1.2|A|
|inrush current|at 240 Vac, full load||110||A|
|leakage current|touch|||0.25|mA|
|no load power consumption||||0.15|W|



Notes: 4. See the derating curves for more details. 

## **OUTPUT** 

|**OUTPUT**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
||5 Vdc output model|||8,000|μF|
||12 Vdc output model|||4,200|μF|
|capacitive load|15 Vdc output model<br>24 Vdc output model|||3,400<br>2,087|μF<br>μF|
||36 Vdc output model|||1,440|μF|
||48 Vdc output model|||600|μF|
||5 Vdc output model|4.90||5.10|Vdc|
||12 Vdc output model|11.76||12.24|Vdc|
|output voltage set point|15 Vdc output model<br>24 Vdc output model|14.85<br>23.76||15.15<br>24.24|Vdc<br>Vdc|
||36 Vdc output model|35.64||36.36|Vdc|
||48 Vdc output model|47.52||48.48|Vdc|
|voltage accuracy|5, 12 Vdc output model<br>all other output models||±2<br>±1||%<br>%|
|line regulation|high line to low line|||±0.5|%|
|load regulation|10 % to 100 % load|||±1.0|%|
|hold-up time|at 115 Vac|8|||ms|
|switching frequency|||65||kHz|
|**PROTECTIONS**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
||auto recovery, hiccup|||||
||5 Vdc output model|||6.3|Vdc|
||12 Vdc output model|||15.6|Vdc|
|over voltage protection|15 Vdc output model|||18.0|Vdc|
||24 Vdc output model|||29.1|Vdc|
||36 Vdc output model|||43.3|Vdc|
||48 Vdc output model|||56.8|Vdc|
|over current protection|auto recovery, hiccup|110||140|%|
|short circuit protection|auto recovery, hiccup|||||
|**SAFETY & COMPLIANCE**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|isolation voltage|input to output, for 1 minunte|||4,250|Vac|
|safety approvals|certifed to 62368-1: IEC, EN, UL<br>designed to meet 60335: IEC, EN|||||
|safety class|Class I or Class II|||||
|EMC|EN 55032:2015+A11:2020 Class B<br>EN IEC 61000-3-2:2019+A1:2021, EN 61000-3-3:2013+A2:2021|||||
|EMC immunity|EN 55035: 2017+A11:2020|||||
|conducted emissions|EN 55032|||||
|radiated emissions|EN 55032|||||



**cui** .com 

Additional Resources:    Product Page    |    3D Model 

**CUI Inc │ SERIES:** VOF-50E **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 12/12/2024 **│ page** 3 of 7 

## **SAFETY & COMPLIANCE** 

|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|---|---|---|---|---|---|
|radiated immunity|IEC 61000-4-3:2020, perf. Criteria A|||||
|ESD|IEC 61000-4-2:2008, Air Discharge: ±8 kV, Contact Discharge: ±4 kV, perf. Criteria A|||||
|EFT/burst|IEC 61000-4-4:2012, ±0.5 kV, ±1 kV, perf. Criteria A|||||
|surge|IEC 61000-4-5:2014, L-N: ±2 kV, L-E (Ground): ±4 kV, perf. Criteria A|||||
|conducted immunity|IEC 61000-4-6:2013, perf. Criteria A|||||
|PFMF|IEC 61000-4-8:2009, perf. Criteria A|||||
|voltage dips|IEC 61000-4-11:2004, Dip: 30% Reduction, Dip > 95% Reduction, perf. Criteria A|||||
|voltage interruption|IEC 61000-4-11:2004, > 95% Reduction, perf. Criteria B|||||
|MTBF|MIL-HDBK-217F at 25°C|1,200,000|||hours|
|RoHS|yes|||||
|**ENVIRONMENTAL**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
||see derating curves|||||
|operating temperature|(safety approved at maximum 50°C or refer to|-30||80|°C|
||report)|||||
|storage temperature||-30||85|°C|
|storage humidity||0||93|%|
||IEC/EN/UL 62368-1 OVC II|||5,000|m|
|altitude|IEC/EN 62368-1 OVC III|||2,000|m|
||designed to meet IEC/EN 60335-1 OVC II|||3,000|m|



## **MECHANICAL** 

|**MECHANICAL**|||||
|---|---|---|---|---|
|**parameter**|**conditions/description**<br>**min**|**typ**|**max**|**units**|
|dimensions|chassis mount: 3.000 x 2.000 x 1.067 [76.20 x 50.80 x 27.1 mm]<br>board mount: 3.000 x 2.000 x 1.142 [76.20 x 50.80 x 29 mm]|||inch<br>inch|
|weight|chassis mount<br>board mount|95<br>93||g<br>g|



## **DERATING CURVES** 

**cui** .com 

Additional Resources:    Product Page    |    3D Model 

**CUI Inc │ SERIES:** VOF-50E **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 12/12/2024 **│ page** 4 of 7 

## **MECHANICAL DRAWING** 

## **Chassis mount** 

units: inch [mm] tolerance: inches: x.xxx = ±0.02 mm: x.xx = ±0.5 

|AC Input Connector(CN1): TKP PVHI-03N2<br>or equivalent|AC Input Connector(CN1): TKP PVHI-03N2<br>or equivalent|AC Input Connector(CN1): TKP PVHI-03N2<br>or equivalent|AC Input Connector(CN1): TKP PVHI-03N2<br>or equivalent|
|---|---|---|---|
|PIN|Function|Mating<br>Housing|Terminal|
|1|AC(L)|JST VHR-3N<br>or equivalent|JST SVH-21T-P1.1<br>or equivalent|
|2|-|||
|3|AC(N)|||



|1<br>AC(L)<br>JST VHR-3N<br>or equivalent<br>JST SVH-21T-P1.1<br>or equivalent<br>2<br>-<br>3<br>AC(N)|1<br>AC(L)<br>JST VHR-3N<br>or equivalent<br>JST SVH-21T-P1.1<br>or equivalent<br>2<br>-<br>3<br>AC(N)|1<br>AC(L)<br>JST VHR-3N<br>or equivalent<br>JST SVH-21T-P1.1<br>or equivalent<br>2<br>-<br>3<br>AC(N)|1<br>AC(L)<br>JST VHR-3N<br>or equivalent<br>JST SVH-21T-P1.1<br>or equivalent<br>2<br>-<br>3<br>AC(N)|
|---|---|---|---|
|DC Output Connector(CN2): TKP PVHI-04<br>or equivalent||||
|PIN|Function|Mating<br>Housing|Terminal|
|1|+Vout|JST VHR-4N<br>or equivalent|JST SVH-21T-P1.1<br>or equivalent|
|2|+Vout|||
|3|-Vout|||
|4|-Vout|||



## **Board mount** 

units: inch [mm] tolerance: inches: x.xxx = ±0.02 mm: x.xx = ±0.5 

|PIN CONNECTIONS<br>CN1|PIN CONNECTIONS<br>CN1|
|---|---|
|PIN|Function|
|1|AC(L)|
|2|AC(N)|



|PIN CONNECTIONS<br>CN2|PIN CONNECTIONS<br>CN2|
|---|---|
|PIN|Function|
|1|+Vout|
|2|+Vout|
|3|-Vout|
|4|-Vout|



**cui** .com 

Additional Resources:    Product Page    |    3D Model 

**CUI Inc │ SERIES:** VOF-50E **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 12/12/2024 **│ page** 5 of 7 

## **EFFICIENCY CURVES** 

**cui** .com 

Additional Resources:    Product Page    |    3D Model 

**CUI Inc │ SERIES:** VOF-50E **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 12/12/2024 **│ page** 6 of 7 

## **ELECTRICAL BLOCK DIAGRAM** 

**==> picture [42 x 9] intentionally omitted <==**

**----- Start of picture text -----**<br>
Figure 1<br>**----- End of picture text -----**<br>


**cui** .com 

Additional Resources:    Product Page    |    3D Model 

**CUI Inc │ SERIES:** VOF-50E **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 12/12/2024 **│ page** 7 of 7 

## **REVISION HISTORY** 

|**rev.**|**description**|**date**|
|---|---|---|
|1.0|initial release|10/17/2024|
|1.01|safeties updated|12/12/2024|



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

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

**Headquarters** 15575 SW Sequoia Pkwy #100 Portland, OR 97224 **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-50E-48/ac-dc-open-frame-power-supply-psu-chassis-mount)
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- [Supplier page](https://es.farnell.com/cui/vof-50e-48/power-supply-ac-dc-48v-1-04a/dp/4655579)
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