# AC/DC DIN Rail Power Supply (PSU), ITE & Household, 1 Output, 20 W, 5 VDC, 4 A

![Product image](https://novapart.co/image/farnell:3702450/)

**URL**: https://novapart.co/products/PSK-20D-5-DIN/ac-dc-din-rail-power-supply-psu-ite-household-1
**SKU**: PSK-20D-5-DIN
**Manufacturer**: CUI
**Price**: €19.9100
**Stock**: 10+
**Lead Time**: 113 days (indicative)

## Description

Available until stocks are exhausted

## Specifications

| Parameter | Value |
|---|---|
| Svhc | To Be Advised |
| Product Range | PSK-20D Series |
| No. Of Outputs | 1 Output |
| Output Power Max | 20W |
| Current, Output 4 | - |
| Input Voltage Vac | 85V AC to 305V AC |
| Power Supply Output Type | Fixed |
| Output Current - Output 1 | 4A |
| Output Current - Output 2 | - |
| Output Current - Output 3 | - |
| Output Voltage - Output 1 | 5VDC |
| Output Voltage - Output 2 | - |
| Output Voltage - Output 3 | - |
| Output Voltage - Output 4 | - |
| Power Supply Applications | ITE & Household |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3702450/)

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

**date** 01/27/2021 **page** 1 of 8 

## **SERIES:** PSK-20D **DESCRIPTION:** INTERNAL AC-DC POWER SUPPLY **│** 

## **FEATURES** 

- wide input range (85 ~ 305 Vac) 

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

- Class B emissions 

- certified to 62368, 61558, and 60335 safety standards 

- designed to meet 60601 medical safety standard (2xMOPP) 

- over voltage, over current, short circuit protections 

|**MODEL**|**output**<br>**voltage**|**output**<br>**current**|**output**<br>**power**|**ripple**<br>**and noise1**|**efficiency2**|
|---|---|---|---|---|---|
|||**max**|**max**|**max**|**typ**|
||(Vdc)|(A)|(W)|(mVp-p)|**(%)**|
|PSK-20D-3|3.3|4.5|14.85|150|81|
|PSK-20D-5|5|4.0|20.0|150|85|
|PSK-20D-9|9|2.2|20.0|150|85|
|PSK-20D-12|12|1.67|20.0|150|86|
|PSK-20D-15|15|1.33|20.0|150|87|
|PSK-20D-24|24|0.83|20.0|150|87|



Notes:   1. At full load, nominal input, 20 MHz bandwidth oscilloscope, with 1 µF ceramic and 10 µF electrolytic capacitors on the output. 

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** 

## **- - - PSK 20D XX X** 

Base Number 

Output Voltage 

Mounting Style: blank = board mount T = chassis mount DIN = DIN-rail mount 

**cui** .com 

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

**CUI Inc │ SERIES:** PSK-20D **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 01/27/2021 **│ page** 2 of 8 

|**INPUT**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|voltage|ac input<br>dc input|85<br>100||305<br>430|Vac<br>Vdc|
|frequency||47||63|Hz|
|current|115 Vac<br>230 Vac|||0.5<br>0.3|A<br>A|
|inrush current|115 Vac<br>230 Vac||25<br>45||A<br>A|
|leakage current|277 Vac/50 Hz|||0.1|mA|
|**OUTPUT**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
||3.3 Vdc|||8,000|μF|
||5 Vdc|||8,000|μF|
|capacitive load|9 Vdc<br>12 Vdc|||5,400<br>4,000|μF<br>μF|
||15 Vdc|||3,000|μF|
||24 Vdc|||1,000|μF|
|output voltage accuracy|||±1.5||%|
|line regulation|at full load||±0.5||%|
|load regulation|0~100% load||±1.0||%|
|hold-up time|115 Vac<br>230 Vac||8<br>50||ms<br>ms|
|switching frequency|||65||kHz|
||230 Vac|||||
|no load power consumption|3.3 Vdc, 5 Vdc, 9 Vdc, 12 Vdc, 15 Vdc outputs||0.1||W|
||24 Vdc output||0.12||W|
|**PROTECTIONS**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
||clamp or hiccup|||||
||3.3 & 5 Vdc output|||7.5|V|
|over voltage protection|9 Vdc output|||15|V|
||12 & 15 Vdc output|||20|V|
||24 Vdc output|||30|V|
|over current protection|auto recovery|110|||%|
|short circuit protection|continuous, auto recovery, hiccup|||||
|**SAFETY & COMPLIANCE**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|isolation voltage|input to output, 1 min., <5mA|4,000|||Vac|
|safety approvals|certifed to         62368: IEC, EN, UL/cUL<br>certifed to<br>60335: EN<br>certifed to          61558: EN|||||
||designed to meet 60601: IEC, EN, UL/cUL|||||
|safety class|Class II|||||
||CISPR32/EN55032 CLASS B|||||
|EMI/EMC|CISPR11/EN55011 CLASS B|||||
||EN55014-1|||||
|ESD|IEC/EN 61000-4-2 Contact ±6KV / Air ±8KV perf.<br>IEC/EN55014-2 perf. Criteria B|Criteria B||||
|radiated immunity|IEC/EN61000-4-3 10V/m perf. Criteria A<br>IEC/EN55014-2 perf. Criteria A|||||



**cui** .com 

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

**CUI Inc │ SERIES:** PSK-20D **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 01/27/2021 **│ page** 3 of 8 

## **SAFETY & COMPLIANCE** 

||IEC/EN61000-4-4 ±2KV perf. Criteria B|||||
|---|---|---|---|---|---|
|EFT/burst|IEC/EN61000-4-4 ±4KV (See Fig.2 for recommended|circuit) perf. Criteria B||||
||IEC/EN55014-2 perf. Criteria B|||||
||IEC/EN61000-4-5 line to line ±1KV perf. Criteria B|||||
|surge|IEC/EN61000-4-5 line to line ±2KV (See Fig.2 for recommended circuit) perf.|||Criteria B||
||IEC/EN55014-2 perf. Criteria B|||||
|conducted immunity|IEC/EN61000-4-6 10Vr.m.s perf. Criteria A<br>IEC/EN55014-2 perf. Criteria A|||||
|voltage dips and interruption|IEC/EN61000-4-11 0%, 70% perf. Criteria B<br>IEC/EN55014-2 perf. Criteria B|||||
|MTBF|MIL-HDBK-217F at 25°C|1,500,000|||hours|
|RoHS|yes|||||
|**ENVIRONMENTAL**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|operating temperature||-40||85|°C|
|storage temperature||-40||85|°C|
|storage humidity||0||95|%|
|**SOLDERABILITY**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|wave soldering|5~10 seconds max|255|260|265|°C|
|hand soldering|3~5 seconds max|350|360|370|°C|
|**MECHANICAL**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
||DIP: 52.40 x 27.20 x 24.00||||mm|
|dimensions|chassis mount: 76.00 x 31.50 x 32.80||||mm|
||DIN-rail: 76.00 x 31.50 x 37.40||||mm|
||DIP||55||g|
|weight|chassis mount||75||g|
||DIN-rail||95||g|
|case material|Black plastic, fame-retardant and heat-resistant (UL94V-0)|||||



**cui** .com 

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

**CUI Inc │ SERIES:** PSK-20D **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 01/27/2021 **│ page** 4 of 8 

## **MECHANICAL DRAWING** 

units: mm [inch] 

pin diameter tolerance: ±0.10 [±0.004] tolerance: ±0.50 [±0.020] 

|PIN CONNECTIONS|PIN CONNECTIONS|
|---|---|
|PIN|Function|
|1|AC(L)|
|2|AC(N)|
|3|-Vo|
|4|+Vo|
|5|no pin|
|6|no pin|



**cui** .com 

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

**CUI Inc │ SERIES:** PSK-20D **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 01/27/2021 **│ page** 5 of 8 

## **MECHANICAL DRAWING** 

units: mm [inch] wire range: 24~12 AWG tightening torque: Max 0.4 N·m tolerance: ±1.0 [±0.039] 

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



units: mm [inch] wire range: 24~12 AWG tightening torque: Max 0.4 N·m mounting rail:  TS35, must be connected to safety ground tolerance: ±1.0 [±0.039] 

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



**cui** .com 

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

**CUI Inc │ SERIES:** PSK-20D **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 01/27/2021 **│ page** 6 of 8 

## **APPLICATION DESIGN REFERENCE** 

Output Filtering Components: 

C1 should be a ceramic capacitor and the TVS will help protect downstream electronics in the unlikely event of converter failure. 

## **Figure 1** 

**Table 1** 

|Part No.|C1(µF)|C2(µF)|TVS|
|---|---|---|---|
|PSK-20D-3|1µF/50V|10µF/16V|SMBJ7.0A|
|PSK-20D-5||10µF/16V|SMBJ7.0A|
|PSK-20D-9||10µF/25V|SMBJ12A|
|PSK-20D-12||10µF/25V|SMBJ20A|
|PSK-20D-15||10µF/25V|SMBJ20A|
|PSK-20D-24||10µF/35V|SMBJ30A|



Note:  3.15A / 300V, slow-blow fuse integrated into unit 

## **EMC RECOMMENDED CIRCUIT** 

## **Figure 2** 

Note: EMC application circuit with higher requirements. 

## **Table 2** 

||**Table 2**|
|---|---|
|Components|Recommended Value|
|FUSE|3.15A/300V, slow-blow, required|
|MOV|S14K350|
|R1|3Ω/3W|



**cui** .com 

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**CUI Inc │ SERIES:** PSK-20D **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 01/27/2021 **│ page** 7 of 8 

## **DERATING CURVE** 

- Note: 1. With an AC input between 85~100V/277~305Vac and a DC input between 100~120V/390~430Vdc, the output power must be derated as per temperature derating curves. 2. This product is suitable for applications using natural air cooling; for applications in closed enviroment please consult with CUI. 

## **EFFICIENCY CURVES** 

**cui** .com 

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**CUI Inc │ SERIES:** PSK-20D **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 01/27/2021 **│ page** 8 of 8 

## **REVISION HISTORY** 

|**rev.**|**description**|**date**|
|---|---|---|
|1.0|initial release|01/27/2021|



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/PSK-20D-5-DIN/ac-dc-din-rail-power-supply-psu-ite-household-1)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/cui/psk-20d-5-din/power-supply-ac-dc-5v-4a/dp/3702450)
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