# AC/DC PCB Mount Power Supply (PSU), ITE, 1 Output, 70 W, 48 VDC, 1.46 A

![Product image](https://novapart.co/image/farnell:3929761/)

**URL**: https://novapart.co/products/VBM-70-48-H/ac-dc-pcb-mount-power-supply-psu-ite-1-output-70-w
**SKU**: VBM-70-48-H
**Manufacturer**: CUI
**Category**: Power & Line Protection || Power Supplies || AC / DC Converters || AC / DC PCB Mount Power Supplies
**Price**: €69.7800
**Stock**: 10+
**Lead Time**: 162 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | Lead (21-Jan-2025) |
| Depth | 60.7mm |
| Width | 58mm |
| Height | 37mm |
| Product Range | VBM-70 Series |
| No. Of Outputs | 1 Output |
| Output Power Max | 70W |
| Input Voltage Vac | 90V AC to 264V AC |
| Power Supply Output Type | Fixed |
| Output Current - Output 1 | 1.46A |
| Output Current - Output 2 | - |
| Output Current - Output 3 | - |
| Output Voltage - Output 1 | 48VDC |
| Output Voltage - Output 2 | - |
| Output Voltage - Output 3 | - |
| Power Supply Applications | ITE |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3929761/)

Additional Resources:    Product Page    |    PCB Footprint 

**date** 12/09/2021 **page** 1 of 6 

## **SERIES:** VBM-70 **DESCRIPTION:** AC-DC POWER SUPPLY **│** 

## **FEATURES** 

- universal input range (90 ~ 264 Vac) 

- wide operating temperature range (-40 to +85 C) 

- ultra-low profile (17 mm) 

- Class B emissions; no external components required 

- over temperature, over voltage, over current, and short circuit protections 

- low no-load power consumption (150 mW) 

## RoHS —ww 

|RoHS<br>;<br>—ww<br>cWAdus<br>ww|€UK<br>Cc<br>cWAdusC|||||
|---|---|---|---|---|---|
|**MODEL**|**output**<br>**voltage**|**output**<br>**current**|**output**<br>**power**|**ripple**<br>**and noise1**|**efficiency2**|
|||**max**|**max**|**max**|**typ**|
||(Vdc)|(A)|(W)|(mVp-p)|(%)|
|VBM-70-12|12|5.83|70.0|120|88.0|
|VBM-70-24|24|2.92|70.0|240|88.5|
|VBM-70-36|36|1.94|69.8|360|89.0|
|VBM-70-48|48|1.46|70.0|480|89.5|



Notes: 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. 

2. Measured at 230 Vac, full load, and 25°C. 

3. All specifications measured at: Ta=25°C, 230 Vac input voltage and 60% rated output load, unless otherwise specified. 

## **PART NUMBER KEY** 

## **- VBM 70 - XX - X** 

Base Number Output Voltage Heatsink "blank" = No H = Yes 

**cui** .com 

Additional Resources:    Product Page    |    PCB Footprint 

**CUI Inc │ SERIES:** VBM-70 **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 12/09/2021 **│ page** 2 of 6 

|**INPUT**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|voltage||90||264|Vac|
|frequency||47||63|Hz|
|leakage current|at 264 Vac|||3.5|mA|
|no load power consumption||||0.15|W|
|**OUTPUT**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|line regulation|90~264 Vac, full load|||±0.5|%|
|load regulation|60% ±40% rated load|||±1|%|
|voltage accuracy|25°C, full load|||±1|%|
|hold-up time|at 115 Vac||6||ms|
|switching frequency|||65||kHz|
|**PROTECTIONS**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|over current protection|auto recovery, hiccup|110||150|%|
||12 Vdc output model|||16|Vdc|
|over voltage protection|auto recovery<br>24 Vdc output model<br>36 Vdc output model|||35<br>50|Vdc<br>Vdc|
||48 Vdc output model|||63|Vdc|
|short circuit protection|auto recovery|||||
|over temperature protection|auto recovery|||||
|**SAFETY AND COMPLIANCE**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
||input to output for 1 minute|3,000|||Vac|
|isolation voltage|input to ground for 1 minute|1,800|||Vac|
||output to ground for 1 minute|500|||Vac|
|safety approvals|certifed to 62368: IEC/UL/EN|||||
|conducted emissions|EN 55032: 2015+AC: 2016, EN 61204-3: 2000, EN 61000-6-3: 2007+A1: 2011+AC: 2012,<br>EN 61000-6-4: 2007+A1: 2011, 47 CFR FCC Part 15 Subpart B, Class B|||||
|radiated emissions|EN 55032: 2015+AC: 2016, EN 61204-3: 2000, EN 61000-6-3: 2007+A1: 2011+AC: 2012,<br>EN 61000-6-4: 2007+A1: 2011, 47 CFR FCC Part 15 Subpart B, Class B|||||
|harmonic current|EN 61000-3-2: 2014|||||
|ESD|IEC 61000-4-2: 2008, Air Discharge: ±8KV, Contact|Discharge: ±4KV, perf. Criteria A||||
|radiated immunity|EN 55035:2017, EN 61204-3:2000, EN 61000-6-1:2019, EN 61000-6-2:2019|||||
|EFT/Burst|IEC 61000-4-4: 2012, ±1kv, ±2kv, perf. Criteria A|||||
|surge|IEC 61000-4-5: 2014+A1: 2017, perf. Criteria A<br>L-N: ±0.5kv, ±1kv, L/N-E(Earth): ±0.5kv, ±1kv, ±2kv, perf. Criteria A|||||
|conducted immunity|EN 55035: 2017, EN 61204-3: 2000, EN 61000-6-1: 2019, EN 61000-6-2: 2019|||||
|voltage dips and interruption|IEC 61000-4-11: 2004+A1: 2017, Dip: 30% Reduction, Dip >95% Reduction, perf. Criteria A|||||
|MTBF|as per MIL-HDBK-217F at 25°C|550,000|||hours|
|RoHS compliant|yes|||||



**cui** .com 

Additional Resources:    Product Page    |    PCB Footprint 

**CUI Inc │ SERIES:** VBM-70 **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 12/09/2021 **│ page** 3 of 6 

## **ENVIRONMENTAL** 

|**ENVIRONMENTAL**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|operating temperature|see derating curves|-40||85|°C|
|storage temperature||-40||85|°C|
|humidity|non-condensing|||93|%|



## **DERATING CURVES** 

## **EFFICIENCY CURVES** 

**cui** .com 

Additional Resources:    Product Page    |    PCB Footprint 

**CUI Inc │ SERIES:** VBM-70 **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 12/09/2021 **│ page** 4 of 6 

## **MECHANICAL** 

|**MECHANICAL**|||||
|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**<br>**typ**|**max**|**units**|
|dimensions|with heatsink|2.28 x 2.40 x 0.67 [57.9 x 61.0 x 17.0 mm]<br>2.39 x 2.28 x 1.46 [60.7 x 58.0 x 37.0 mm]||inches<br>inches|
|weight|with heatsink|135<br>260||g<br>g|



## **MECHANICAL DRAWING** 

units: inch [mm] 

tolerance: inches: x.xx = ±0.02, x.xxx = ±0.010 mm: x.x = ±0.5, x.xx = ±0.25 

## **PIN CONNECTIONS** 

|PIN|FUNCTION|
|---|---|
|1|AC (L)|
|2|AC (N)|
|3|+Vo|
|4|Trim|
|5|-Vo|



**cui** .com 

Additional Resources:    Product Page    |    PCB Footprint 

**CUI Inc │ SERIES:** VBM-70 **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 12/09/2021 **│ page** 5 of 6 

## **MECHANICAL DRAWING (CONTINUED)** 

## **HEATSINK VERSION** 

units: inch [mm] 

tolerance: inches: x.xx = ±0.02, x.xxx = ±0.010 mm: x.x = ±0.5, x.xx = ±0.25 

**cui** .com 

Additional Resources:    Product Page    |    PCB Footprint 

**CUI Inc │ SERIES:** VBM-70 **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 12/09/2021 **│ page** 6 of 6 

## **REVISION HISTORY** 

|**rev.**|**description**|**date**|
|---|---|---|
|1.0|initial release|12/09/2021|



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

**==> picture [116 x 37] 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/VBM-70-48-H/ac-dc-pcb-mount-power-supply-psu-ite-1-output-70-w)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/cui/vbm-70-48-h/power-supply-ac-dc-48v-1-46a/dp/3929761)
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