# AC-DC 150W 48V UFRAME 4PIN MED

![Product image](https://novapart.co/image/farnell:4918956/)

**URL**: https://novapart.co/products/VOFM-150E-48-U/ac-dc-150w-48v-uframe-4pin-med
**SKU**: VOFM-150E-48-U
**Manufacturer**: CUI
**Category**: Power & Line Protection || Power Supplies || AC / DC Converters || AC / DC Open Frame Power Supplies
**Price**: €72.0300
**Stock**: 10+
**Lead Time**: 155 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4918956/)

**date** 06/16/2025 **page** 1 of 6 

## **SERIES:** VOFM-150E **DESCRIPTION:** INTERNAL AC-DC POWER SUPPLY **│** 

## **FEATURES** 

- 100 W with natural convection, 150 W with forced air cooling 

- 3”x2” compact size, industrial design 

- IEC/EN/UL 60601-1 certified 

- operating temperature -20°C to 70°C (with derating) 

- short-circuit protection, over power protection, overvoltage protection 

- 2 x MOPP (BF rated) 

- main output power ON LED indicators 

- low no load power consumption (<0.150 W) • chassis mounting @ A 

|• low no load power consumption (<0.150 W)<br>• chassis mounting<br>@<br>A<br>RecTALUSC €|• low no load power consumption (<0.150 W)||||©|
|---|---|---|---|---|---|
|**MODEL**<br>RecTALUSC €|**output**<br>**voltage**|**output**<br>**current1**|**output**<br>**power1,2**|**ripple**<br>**and noise3**|**efficiency**<br>**level4**|
|||**max**|**max**|**typ**|**typ**|
||(Vdc)|(A)|(W)|(mVp-p)|**(%)**|
|VOFM-150E-12|12|12.5|150|120|92|
|VOFM-150E-15|15|10.0|150|150|92|
|VOFM-150E-18|18|8.34|150|180|92|
|VOFM-150E-24|24|6.25|150|240|92|
|VOFM-150E-28|28|5.36|150|280|92|
|VOFM-150E-36|36|4.17|150|360|92|
|VOFM-150E-48|48|3.13|150|360|92|
|VOFM-150E-54|54|2.78|150|360|92|



- Notes: 1. With forced air (10 CFM). 

2. Maximum output power is 150 W with 10 CFM forced air cooling, and 100 W with natural convection cooling. 

3. Ripple and noise are measured at oscilloscope 20MHz bandwidth by a 10µF electrolytic capacitor and a 0.1µF ceramic capacitor in parallel at output connector. 

4. At full load, 230 Vac. 

## **PART NUMBER KEY** 

## **- - - VOFM 150E XX X XX** 

Base Number 

Output Voltage Chassis mount: “blank” = open frame U = U frame 

Output Connections: “blank” = 4-pin connector M2 = terminal block connector 

**cui** .com 

**CUI Inc │ SERIES:** VOFM-150E **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 06/16/2025 **│ page** 2 of 6 

## **INPUT** 

|**INPUT**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|voltage||90|115~230|264|Vac|
|frequency||47|50~60|63|Hz|
|current|at 115 Vac/50 Hz|||2|A|
|inrush current|at 230 Vac, cold start|||100|A|
|leakage current|earth<br>touch<br>at 264 Vac (Class I)<br>at 264 Vac (Class II)|||300<br>100|µA<br>µA|
|no load power consumption||||0.15|W|
|power factor||0.9||||
|**OUTPUT**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
||12 Vdc output model|||8.34 / 12.5|A|
||15 Vdc output model|||6.67 / 10.0|A|
||18 Vdc output model|||5.56 / 8.34|A|
|output current|24 Vdc output model|||4.17 / 6.25|A|
|(natural convection/forced air5)|28 Vdc output model|||3.58 / 5.36|A|
||36 Vdc output model|||2.78 / 4.17|A|
||48 Vdc output model|||2.09 / 3.13|A|
||54 Vdc output model|||1.86 / 2.78|A|
|load regulation|12, 15, 18, 24, 28 Vdc output models<br>all other output models||±3<br>±2||%|
|hold-up time||10|||ms|
|transient response|10% to full load deviation recovery time <20mS 10% max|||||
|overshoot|turn-on and turn-of overshoot shall not exceed|±10% of the|voltage regulation tolerance|||
|switching frequency|at full load|75||90|kHz|
|Notes:<br>5. With forced air 10 CFM.||||||



## **PROTECTIONS** 

|**PROTECTIONS**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
||12 Vdc output, output shut-down with latch|13.2||15.6|Vdc|
||15 Vdc output, output shut-down with latch|16.5||19.5|Vdc|
||18 Vdc output, output shut-down with latch|19.8||23.4|Vdc|
|over voltage protection|24 Vdc output, output shut-down with latch<br>28 Vdc output, output shut-down with latch|26.4<br>30.8||31.2<br>36.4|Vdc<br>Vdc|
||36 Vdc output, output shut-down with latch|39.6||46.8|Vdc|
||48 Vdc output, output shut-down with latch|52.8||62.4|Vdc|
||54 Vdc output, output shut-down with latch|59.4||64.8|Vdc|
|over current protection|auto-recovery|105||160|%|
|short circuit protection|auto-recovery|||||
|over temperature protection|latching type, power recycle|||||



**cui** .com 

**CUI Inc │ SERIES:** VOFM-150E **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 06/16/2025 **│ page** 3 of 6 

## **SAFETY & COMPLIANCE** 

|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|---|---|---|---|---|---|
||input to output, for 4 seconds (Class I & II)|5,656|||Vdc|
|isolation voltage|input to frame ground, for 4 seconds (Class I)|2,121|||Vdc|
||output to frame ground, for 4 seconds (Class I)|2,121|||Vdc|
|safety approvals|certified to 60601-1:  IEC/EN/UL|||||
|safety class|Class I, Class II|||||
|EMI/EMC|EN55011 Class B & EN60601-1-2<br>FCC Part 18 Class B|||||
|MTBF|as per Telcordia (Bellcore TR-332) at 25°C|400,000|||hours|
|RoHS|yes|||||
|**ENVIRONMENTAL**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|operating temperature||-20||70|°C|
|storage temperature||-20||85|°C|
|operating humidity|non-condensing|10||95|%|
|storage humidity|non-condensing|0||95|%|
|altitude||||5,000|m|



## **DERATING CURVE** 

**cui** .com 

**CUI Inc │ SERIES:** VOFM-150E **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 06/16/2025 **│ page** 4 of 6 

## **MECHANICAL** 

|**MECHANICAL**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|dimensions|open frame: 76.2 x 50.8 x 31.0 [3.00 x 2.00 x 1.22 inch]<br>U-frame: 90.6 x 64.0 x 38.0 [3.57 x 2.52 x 1.50 inch]||||mm<br>mm|
|weight|open frame:<br>U-frame:||150<br>200||g<br>g|
|cooling|forced air 10 CFM|||||



## **MECHANICAL DRAWING** 

## **Open frame** 

units: mm [inch] 

|**CN2**: Main Output Connector<br>(pitch: 3.96mm / 3.50mm)|**CN2**: Main Output Connector<br>(pitch: 3.96mm / 3.50mm)|**CN2**: Main Output Connector<br>(pitch: 3.96mm / 3.50mm)|
|---|---|---|
|JST B4P-VH-B or equivalent<br>Mates with JST VHR-4N or equivalent||Eurostyle P.C.B. 3.50mm Terminal Block<br>16-24 AWG (1.5mm2) Wire range|
|PIN|Function|Function|
|1|GND|GND|
|2|GND|GND|
|3|+Vout|+Vout|
|4|+Vout|+Vout|



**DC FAN Recommended Direction** 

**cui** .com 

**CUI Inc │ SERIES:** VOFM-150E **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 06/16/2025 **│ page** 5 of 6 

## **MECHANICAL DRAWING** 

## **U-frame frame** 

units: mm [inch] 

|ren<br>LJ<br>sed —<br>—=|ren<br>LJ<br>sed —<br>—=|ren<br>LJ<br>sed —<br>—=|
|---|---|---|
|**CN2**: Main Output Connector<br>(pitch: 3.96mm / 3.50mm)|||
|JST B4P-VH-B or equivalent<br>Mates with JST VHR-4N or equivalent||Eurostyle P.C.B. 3.50mm Terminal Block<br>16-24 AWG (1.5mm2) Wire range|
|PIN|Function|Function|
|1|GND|GND|
|2|GND|GND|
|3|+Vout|+Vout|
|4|+Vout|+Vout|



## **DC FAN Recommended Direction** 

**cui** .com 

**CUI Inc │ SERIES:** VOFM-150E **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 06/16/2025 **│ page** 6 of 6 

## **REVISION HISTORY** 

|**rev.**|**description**|**date**|
|---|---|---|
|1.0|initial release|06/16/2025|



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

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

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. 



## Links

- [View this product on Novapart](https://novapart.co/products/VOFM-150E-48-U/ac-dc-150w-48v-uframe-4pin-med)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/cui/vofm-150e-48-u/ac-dc-150w-48v-uframe-4pin-med/dp/4918956)
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