PSK-25W-9-T

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**date** 06/30/2020 **page** 1 of 8 

## **SERIES:** PSK-25W **DESCRIPTION:** INTERNAL AC-DC POWER SUPPLY **│** 

## **FEATURES** 

- wide input range (85~305 Vac) 

- UL/EN/IEC 62368 certified 

- meets CISPR32/EN 55032 Class B without external components 

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

|**MODEL**|**output**<br>**voltage**|**output**<br>**current**|**output**<br>**power**|**ripple**<br>**and noise**|**efficiency**|
|---|---|---|---|---|---|
|||**max**|**max**|**typ**|**typ**|
||(Vdc)|(A)|(W)|(mVp-p)|**(%)**|
|PSK-25W-3|3.3|4.1|13.5|100|75|
|PSK-25W-5|5|4.1|20.5|100|78|
|PSK-25W-9|9|2.5|22.5|100|80|
|PSK-25W-12|12|2.1|25.0|100|82|
|PSK-25W-15|15|1.6|24.0|100|83|
|PSK-25W-24|24|1.1|26.4|100|85|
|PSK-25W-48|48|0.5|24.0|100|87|



## **PART NUMBER KEY** 

**- - PSK 25W XX - X** 

~~a~~ Base Number Output Voltage Mounting Style 

blank = board mount T = chassis mount DIN = DIN-rail mount 

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**date** 06/30/2020 **│ page** 2 of 8 

|**INPUT**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|voltage||85<br>100||305<br>430|Vac<br>Vdc|
|frequency||47||63|Hz|
|current|at 155 Vac<br>at 230 Vac|||0.6<br>0.34|A<br>A|
|inrush current|at 155 Vac||20||A|
||at 230 Vac||40|||
|no load power consumption|at 230 Vac|||0.5|W|
|**OUTPUT**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
||3.3 Vdc output models|||48,000||
||5 Vdc output models|||12,240||
||9 Vdc output models|||5,600||
|capacitive load|12 Vdc output models|||5,400|μF|
||15 Vdc output models|||2,400||
||24 Vdc output models|||1,440||
||48 Vdc output models|||600||
|output voltage accuracy|3.3 V output models<br>all other voltages||±3<br>±2||%<br>%|
|line regulation|||±0.5||%|
|load regulation|||±1.0||%|
|hold-up time|at 115 Vac<br>at 230 Vac||10<br>60||ms<br>ms|
|trimmability|see application circuit||±10||%|
|switching frequency|||65||kHz|
|temperature coefcient|||±0.02||%/°C|
|**PROTECTIONS**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
||3.3 / 5 Vdc output models|||7.5||
||9 Vdc output models|||15||
|over voltage protection|12 / 15 Vdc output models|||20|V|
||24 Vdc output models|||30||
||48 Vdc output models|||60||
|over current protection|self recovery|120||300|Io%|
|short circuit protection|hiccup, continuous, self recovery|||||



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**date** 06/30/2020 **│ page** 3 of 8 

## **SAFETY & COMPLIANCE** 

|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|---|---|---|---|---|---|
|isolation voltage|input to output<br>input to earth|4,000<br>2,500|||Vac|
|safety approvals|IEC 62368/EN 62368/UL 62368|||||
|safety class|Class II|||||
|EMI/EMC|CISPR32/EN 55032: 2015 Class B|||||
|ESD|IEC/EN 61000-4-2, Contact ±6KV / Air ±8KV, perf. Criteria B|||||
|radiated immunity|EC/EN 61000-4-3, 10V/m, perf. Criteria A|||||
|EFT/burst|IEC/EN 61000-4-4, ±2KV, perf. Criteria B<br>IEC/EN 61000-4-4, ±4KV, perf. Criteria B|||||
|surge|IEC/EN 61000-4-5, line to line ±1KV, line to ground ±2KV, perf. Criteria B||IEC/EN 61000-4-5, line to line ±1KV, line to ground ±2KV, perf. Criteria B|||
|conducted immunity|EC/EN 61000-4-6, 10Vr.m.s, perf. Criteria A|||||
|MTBF|as per MIL-HDBK-217F @ 25°C|300,000|||hours|
|RoHS|yes|||||



## **DERATING CURVE** 

## **EFFICIENCY CURVES** 

85 PSK-25W-24 PSK-25W-24 80 PSK-25W-12 80 PSK-25W-12 75 PSK-25W-5 PSK-25W-5 70 - 65 60 60 

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**date** 06/30/2020 **│ page** 4 of 8 

## **ENVIRONMENTAL** 

|**ENVIRONMENTAL**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|operating temperature||-40||85|°C|
|storage temperature||-40||85|°C|
|storage humidity|non-condensing|0||95|%|
|**SOLDERABILITY**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|wave soldering|for 5~10 seconds|255|260|265|°C|
|hand soldering|for 3~5 seconds|350|360|370|°C|
|**MECHANICAL**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
||70.00 x 48.00 x 23.50 (board mount)||||mm|
|dimensions|96.10 x 54.00 x 32.00 (chassis mount)||||mm|
||96.10 x 54.00 x 36.60 (DIN-rail)||||mm|
||board mount||120||g|
|weight|chassis mount||170||g|
||DIN-rail||210||g|
|cooling|free air convection|||||
|case material|Black plastic, flame-retardant and heat-resistant (UL94V-0)|Black plastic, flame-retardant and heat-resistant (UL94V-0)||||



## **MECHANICAL DRAWING (BOARD MOUNT)** 

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

|PIN CONNECTIONS|PIN CONNECTIONS|
|---|---|
|PIN|Function|
|1|⏚|
|2|AC (N)|
|3|AC (L)|
|4|+Vo|
|5|-Vo|
|6|Trim|



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## **MECHANICAL DRAWING (CHASSIS MOUNT)** 

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

|PIN CONNECTIONS|PIN CONNECTIONS|
|---|---|
|PIN|Function|
|1|⏚|
|2|AC (N)|
|3|AC (L)|
|4|+Vo|
|5|NC|
|6|Trim|
|7|NC|
|8|-Vo|



## **MECHANICAL DRAWING (DIN-RAIL MOUNT)** 

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

|PIN CONNECTIONS|PIN CONNECTIONS|
|---|---|
|PIN|Function|
|1|⏚|
|2|AC (N)|
|3|AC (L)|
|4|+Vo|
|5|NC|
|6|Trim|
|7|NC|
|8|-Vo|



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**date** 06/30/2020 **│ page** 6 of 8 

## **APPLICATION CIRCUIT** 

## **Figure 1** 

## **Table 1** 

|Recommended External Circuit Components|Recommended External Circuit Components|Recommended External Circuit Components|Recommended External Circuit Components|Recommended External Circuit Components|Recommended External Circuit Components|
|---|---|---|---|---|---|
|Vo (Vdc)|FUSE6|MOV6|C1|C2|TVS|
|3.3|3.15A/300V<br>slow-blow,<br>required|S14K350|1 μF|330 μF|SMBJ7.0A|
|5||||330 μF|SMBJ7.0A|
|9||||330 μF|SMBJ12A|
|12||||330 μF|SMBJ20A|
|15||||330 μF|SMBJ20A|
|24||||120 μF|SMBJ30A|
|48||||68 μF|SMBJ64A|



Notes: 6. Chassis Mount and DIN-Rail Mount versions include the fuse and MOV components. 

## **EMC RECOMMENDED CIRCUIT** 

## **Figure 2** 

## **Table 2** 

|**Table 2**|**Table 2**|
|---|---|
|Recommended External Circuit Components||
|MOV|S14K350|
|CY1/CY2|1000 pF/400 Vac|
|CX|0.1 µF/310 Vac|
|LCM|10 mH|
|L1|4.7 µH/ 2 A|
|FC-LX1D|2 KV/4 KV EMC filter|
|FUSE|3.15 A/300 V, slow blow, required|



- Notes: 7. C1 is a ceramic capacitor used to filter high frequency noise. 

8. C2 is an electrolytic capacitor and it is recommended to be high frequency and low impedance. For capacitance and current of capacitor, refer to the datasheet provided by the 

manufacturer. Voltage derating of capacitor should be at least 80%. 

   9. TVS is a recommended component to protect post-circuits (if converter fails). 

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**date** 06/30/2020 **│ page** 7 of 8 

## **TRIM FUNCTION** 

Note: Trim resistor connection (dashed line shows internal resister network) 

**==> picture [264 x 133] intentionally omitted <==**

**Table 3** 

|Vout|R1(KΩ)|R2 (KΩ)|R3 (KΩ)|Vref(V)|Vot(V)|
|---|---|---|---|---|---|
|3.3|2|1.19|1|1.24|Output voltage<br>after regulation,<br>variation ≤ ±10%|
|5|3.3|3.3|1|2.5||
|9|7.5|2.87|1|2.5||
|12|3.83|1|1|2.5||
|15|7.5|1.5|1|2.5||
|24|8.66|1|1|2.5||
|48|27|1.49|1|2.5||



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**date** 06/30/2020 **│ page** 8 of 8 

## **REVISION HISTORY** 

|**rev.**|**description**|**date**|
|---|---|---|
|1.0|initial release|06/30/2020|



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

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

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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. 

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