PSK-5E-12-DIN

**date** 01/19/2026 **page** 1 of 7 

## **SERIES:** PSK-5E **DESCRIPTION:** INTERNAL AC-DC POWER SUPPLY **│** 

## **FEATURES** 

- universal input 85~305 Vac & 100~430 Vdc 

- wide operating temperature range (-40~85°C) 

- EMI Class B emissions (EN55032/CISPR) without additional components 

- certified to IEC/EN/UL 62368-1 

- isolation voltage 4,000 Vac 

- short circuit and over current protection 

- input under voltage protection 

- Class II 

- low stand-by power consumption (<0.1 W) 

- 2,000 m operating altitude 

- OVC III 

|Hols COAL|CE|||||
|---|---|---|---|---|---|
|**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-5E-3|3.3|1.515|5|120|72|
|PSK-5E-5|5|1.000|5|120|76|
|PSK-5E-9|9|0.555|5|120|79|
|PSK-5E-12|12|0.416|5|120|79|
|PSK-5E-15|15|0.333|5|120|79|
|PSK-5E-24|24|0.208|5|120|82|



Notes:   1. Ripple & noise are measured at 20 MHz BW. 10% ~ full load. 

2. It is recommended to use at a load of over 5%. If the load is below 5%, the ripple index of the product may exceed the specifications, but it does not affect the reliability of the product. 

3. Unless otherwise specified, all indicators in this manual are measured at Ta=25 °C, humidity<75% RH, nominal input voltage, and output rated load 

## **PART NUMBER KEY** 

## **- - - PSK 5E XX XXX** 

Base Number 

Output Voltage 

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

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Please read our datasheet & drawing disclaimer here. 

**CUI Inc │ SERIES:** PSK-5E **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 01/19/2026 **│ page** 2 of 7 

## **INPUT** 

|**INPUT**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|voltage4|ac input<br>dc input|85<br>100||305<br>430|Vac<br>Vdc|
|frequency||47|50~60|63|Hz|
|current|115 Vac<br>230 Vac|||0.13<br>0.07|A<br>A|
|external input fuse|1 A, slow-blow, required|||||
|leakage current|230 Vac/50 Hz|||0.3|mA|
|no load power consumption|at 230 Vac||0.1||W|



Notes:   4. The input voltage should not exceed the specified range value to prevent permanent and irreparable damage. 

## **OUTPUT** 

|**OUTPUT**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
||3.3 Vdc output model|||4,000|μF|
||5 Vdc output model|||3,000|μF|
|capacitive load|9, 12 Vdc output model|||1,200|μF|
||15 Vdc output model|||680|μF|
||24 Vdc output model|||220|μF|
||5% ~ 100% load|||||
|output voltage accuracy|3.3 Vdc output model||±3||%|
||all other output models||±2||%|
|line regulation|||±0.5||%|
|load regulation|5% ~ 100% load||±1.0||%|
|hold-up time|at 230 Vac||50||ms|
|temperature coefcient|||±0.02||%/°C|
|**PROTECTIONS**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|over current protection|auto recovery|110|||%|
|short circuit protection|continuous, auto recovery|||||
|**SAFETY & COMPLIANCE**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|isolation voltage|input to output, for 1 minute, 5mA max|4,000|||Vac|
||certifed to 62368-1: IEC, EN, UL|||||
|safety approvals|designed to meet 61558: EN|||||
||designed to meet 60335: EN|||||
|safety class|Class II|||||
|EMI/EMC|CISPR32/EN55032 CLASS B|||||
|ESD|IEC/EN61000-4-2 Contact ±6 kV/Air ±8 kV, perf. Criteria B|||||
|radiated immunity|IEC/EN61000-4-3 10 V/m, perf. Criteria A|||||
|EFT/burst|IEC/EN61000-4-4 ±4 kV (see recommendedcircuit|Fig. 2 ), perf. Criteria B||||
|surge|IEC/EN61000-4-5 line to line ±1 kV, perf. Criteria B<br>IEC/EN61000-4-5 line to line ±2 kV, (see recommendedcircuitFig.||2 ), perf.|Criteria B||
|conducted immunity|IEC/EN61000-4-6 10 Vrms, perf. Criteria A|||||
|MTBF|MIL-HDBK-217F at 25°C|2,600,000|||hours|
|RoHS|yes|||||



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**CUI Inc │ SERIES:** PSK-5E **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 01/19/2026 **│ page** 3 of 7 

## **ENVIRONMENTAL** 

|**ENVIRONMENTAL**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|operating temperature||-40||85|°C|
|storage temperature||-40||105|°C|
|storage humidity|non-condensing|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|355|360|360|°C|
|**MECHANICAL**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
||board mount: 25.40 x 25.40 x 17.60 [1.000 x 1.000 x 0.693 inch]||||mm|
|dimensions|chassis mount: 76.00 x 31.50 x 26.40 [2.992 x 1.240 x 0.906 inch]||||mm|
||DIN-rail mount: 76.00 x 31.50 x 27.40 [2.992 x 1.240 x 1.079 inch]||||mm|
||board mount||23.0||g|
|weight|chassis mount||41.58||g|
||DIN-rail mount||61.40||g|
|case material|black plastic, flame-retardant and heat-resistant (UL94V-0)|||||
|cooling|natural convection|||||



## **MECHANICAL DRAWING** 

## **Board mount** 

units: mm [inch] pin diameter tolerance: ±0.10 [±0.004] tolerance: ±0.50 [±0.020] 

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



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**CUI Inc │ SERIES:** PSK-5E **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 01/19/2026 **│ page** 4 of 7 

## **MECHANICAL DRAWING (CONTINUED)** 

## **Chassis mount** 

units: mm [inch] wire diameter: 24 ~ 12 AWG tightening torque: Max 0.4 N·m tolerance: ±1.00 [±0.039] 

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



## **DIN-rail mount** 

units: mm [inch] wire diameter: 24 ~ 12 AWG tightening torque: Max 0.4 N·m mounting rail: TS35, rail needs to connect to safety ground tolerance: ±1.00 [±0.039] 

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



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**CUI Inc │ SERIES:** PSK-5E **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 01/19/2026 **│ page** 5 of 7 

## **DERATING CURVE** 

## **EFFICIENCY CURVES** 

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**CUI Inc │ SERIES:** PSK-5E **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 01/19/2026 **│ page** 6 of 7 

## **APPLICATION DESIGN REFERENCE** 

## **Figure 1** 

## **Table 1** 

||||**Table 1**||||
|---|---|---|---|---|---|---|
|Vout (Vdc)|FUSE|MOV|R1|C1 (µF/V)|C2(µF/V)|D1|
|3.3, 5|1A/300V,<br>slow-blow,<br>required|10D561K|12Ω/3W<br>(wire-wound<br>resistor, required)|1 µF/16 V|150 µF/16 V|see note 2|
|9, 12||||1 µF/25 V|150 µF/25 V||
|15, 24||||1 µF/50 V|100 µF/35 V||



- Notes:    1. Fuse and MOV should be selected based on application requirements and performance criteria. 2. D1 is a TVS transistor that can protect the downstream circuit in case of module abnormalities. It is recommended to choose amodel that is 1.2 times the output voltage. 

## **RECOMMENDED CIRCUIT FOR HIGHER EMI REQUIREMENTS** 

## **Figure 2** 

**Table 2** 

||**Table 2**|
|---|---|
|Components|Recommended Value|
|FUSE|2A/300V, slow-blow, required|
|MOV|14D561K|
|Cx|0.33µF/305 Vac|
|R1|12Ω/3W(wire wound resistor, required)|
|L1|1.2 mH/0.3 A|
|CY1, CY2|1nF/400 Vac|
|GDT|300 V/1 kA|
|LCM|20 mH Common mode Choke|
|Rx1, Rx2, Rx3, Rx4|2 MΩ/1206|



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**CUI Inc │ SERIES:** PSK-5E **│ DESCRIPTION:** AC-DC POWER SUPPLY 

**date** 01/19/2026 **│ page** 7 of 7 

## **REVISION HISTORY** 

|**rev.**|**description**|**date**|
|---|---|---|
|1.0|initial release|04/07/2025|
|1.01|chassis and DIN-rail mount added|01/19/2026|



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.