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PST50W-36-S24B-H-DIN
Isolated DIN Rail Mount DC/DC Converter, W/Heatsink, ITE, Industrial & Railway, 8:1, 50 W, 1 Output
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: CUI
- Product type: Isolated DIN Rail Mount DC / DC Converters
- SVHC: Lead (21-Jan-2025)
- Depth: 76.7mm
- Width: 76.2mm
- Height: 116.8mm
- Input Ratio: 8:1
- Product Range: PST50W Series
- No. of Outputs: 1 Output
- Output Power Max: 50W
- Isolation Voltage: 4.2kV
- Output Regulation: Regulated
- Input Voltage DC Max: 75V
- Input Voltage DC Min: 9.5V
- Input Voltage DC Nom: 36V
- Output Current - Output 1: 2.08A
- Output Current - Output 2: -
- Output Voltage - Output 1: 24VDC
- Output Voltage - Output 2: -
- Power Supply Applications: ITE, Industrial & Railway
- DC / DC Converter Output Type: Fixed
| Delivery and price | |
|---|---|
| Units per pack | 20 |
| Price | 178.74 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
Additional Resources: Product Page ~~oe~~ **date 02/10/2024 page 1 of 8** ## **SERIES:** PST50W **DESCRIPTION:** DC-DC CONVERTER **│** ## **FEATURES** - 50 W isolated output - certified to IEC/EN 62368, reinforced insulation - meets EN 50155 and EN 45545-2 - 8:1 input range, 9.5 ~ 75 Vdc - built-in EMI filter and baseplate - wide operating temperature range (-40 ~ 105 °C) - remote on/off - short circuit, over current, over voltage, over temperature, - & UVLO protections |**MODEL**|**input**<br>**voltage**|**output**<br>**voltage**|**output**<br>**current**|**output**<br>**power**|**ripple**<br>**and noise1**|**efficiency**| |---|---|---|---|---|---|---| ||**range**||**max**|**max**|**max**|**typ**| ||(Vdc)|(Vdc)|(A)|(W)|(mVp-p)|(%)| |PST50W-36-S12B|9.5~75|12|4.17|50|150|90| |PST50W-36-S15B|9.5~75|15|3.33|50|150|90| |PST50W-36-S24B|9.5~75|24|2.08|50|240|90| |PST50W-36-S28B|9.5~75|28|1.79|50|240|90| |PST50W-36-S48B|9.5~75|48|1.05|50|480|90| ## **MODEL** Note: 1. Ripple and noise are measured peak to peak at full load, 5 ~20 MHz BW with 1µF ceramic capacitor, full load. 2. All specifications are measured at Ta=25°C, nominal input voltage and full output load unless otherwise specified. ## **PART NUMBER KEY** **PST50W - XX - S XX B X - X X - XXX** Base Number Mounting style: “blank” = chassis mount Input Voltage DIN = DIN-rail mount Output Voltage Frame: — ~~AA~~~ W "blank" = with case Base Plate: Remote on/off: Heatsink: O = no case B = base plate "blank" = positive logic "blank" = no heatsink N = negative logic H = with heatsink **cui** .com Additional Resources: Product Page **CUI Inc │ SERIES:** PST50W **│ DESCRIPTION:** DC-DC CONVERTER **date** 02/10/2024 **│ page** 2 of 8 ## **INPUT** |**INPUT**||| |---|---|---| |**parameter**|**conditions/description**<br>**min**<br>**typ**<br>**max**<br>**units**|| |operating input voltage|9.5<br>36<br>75<br>Vdc|| |under voltage shutdown|turn-on voltage threshold, at full load<br>turn-of voltage threshold, at full load<br>8.4<br>7.5<br>8.8<br>7.9<br>9.3<br>8.4<br>Vdc<br>Vdc|| |hysteresis voltage shutdown|at full load<br>0.9<br>Vdc|| |maximum input current|at full load, 9.5 Vdc input voltage<br>7.5<br>A|| |input current (no load/full load)|Vin=36V, Io=0A<br>12 Vdc output models<br>15 Vdc output models<br>24 Vdc output models<br>28 Vdc output models<br>48 Vdc output models<br>10/1,544<br>10/1,542<br>12/1,541<br>12/1,547<br>12/1,556<br>mA<br>mA<br>mA<br>mA<br>mA|| |remote on/of|positive<br>logic|models ON: Vremoteat Iremote= 0.0uA,<br>Pin open = on<br>4.0<br>75<br>Vdc| |||models OFF: Vremoteat Iremote= 1.0mA<br>0<br>1.0<br>Vdc| ||negative<br>logic|models ON: Vremoteat Iremote= 1.0mA<br>0<br>1.0<br>Vdc| |||models OFF: Vremoteat Iremote= 0.0uA,<br>Pin open = of<br>4.0<br>75<br>Vdc| |remote on/of current3|Iremoteat Vremote= 0V<br>0.3<br>1<br>mA|| |leakage current3|logic high, Vremote= 15V<br>30<br>µA|| |of converter current|5<br>10<br>mA|| Note: 3. For positive and negative logic. ## **OUTPUT** |**OUTPUT**|||||| |---|---|---|---|---|---| |**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**| ||12 Vdc output models|||8,000|μF| |maximum capacitive load|15 Vdc output models<br>24, 28 Vdc output models|||6,800<br>2,350|μF<br>μF| ||48 Vdc output models|||700|μF| |line regulation|measured from high line to low line|||±0.2|%| |load regulation|measured from full load to zero load|||±0.2|%| |voltage accuracy|at full load, 36 Vdc input voltage, 25°C||±1||%| |switching frequency||180|200|220|kHz| |transient response|75 ~ 100% step load change|||250|µs| |temperature coefcient|40 ~ 105°C|||±0.02|%/°C| |remote on/of start-up time4|Vremoteto 10% Voset, remote on||20||ms| |input start-up time4|Vinminto 10% Voset, power up||20||ms| |rise time|10% Vosetto 90% Voset||10||ms| |voltage trim range|Po ≤ max rated power, Io ≤ Iomax|-20||15|%| |remote sense range|Po ≤ max rated power, Io ≤ Iomax% of nominal Vo|||15|%| Note: 4. At full constant resistive load. ## **PROTECTIONS** |**PROTECTIONS**|||||| |---|---|---|---|---|---| |**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**| |over current protection|auto recovery, hiccup|110|150|210|%| |over voltage protection|limited voltage, % of nominal Vo|117|125|140|%| |short circuit protection|auto recovery, continuous||||| |over temperature protection5|shutdown<br>restart threshold||110<br>100||°C<br>°C| |Note:<br>5. Temperature at the center part of base plate, non-latching.|||||| **cui** .com Additional Resources: Product Page **CUI Inc │ SERIES:** PST50W **│ DESCRIPTION:** DC-DC CONVERTER **date** 02/10/2024 **│ page** 3 of 8 ## **SAFETY AND COMPLIANCE** |**parameter**|**conditions/description**<br>**min**<br>**typ**<br>**max**<br>**units**| |---|---| |isolation voltage|input to output, for 1 minute<br>3,000<br>4,200<br>Vac<br>Vdc| ||input to case (base plate), for 1 minute<br>2,100<br>3,000<br>Vac<br>Vdc| ||output to case (base plate), for 1 minute<br>1,500<br>2,100<br>Vac<br>Vdc| |isolation resistance|input to output<br>100<br>MΩ| |isolation capacitance|input to output<br>input to case (base plate)<br>output to case (base plate)<br>15,000<br>16,000<br>23,000<br>pF<br>pF<br>pF| |safety approvals|certifed to 62368-1: IEC, EN<br>designed to meet 62368-1: UL| |conducted emissions|EN 55032 and EN 50155 compliant, class A| |radiated emissions|EN 55032 and EN 50155 compliant, class A| |ESD|EN 61000-4-2 Level 3: Air ±8kV, Contact ±6kV, perf. criteria A| |radiated immunity|EN 61000-4-3 Level 3: 80~1000MHz, 20V/m, perf. criteria A| |surge|EN 61000-4-5 Level 4: Line to earth, ±4kV, Line to line, ±2kV, perf. criteria A| |conducted immunity|EN 61000-4-6 Level 3: 0.15~80MHz, 10V, perf. criteria A| |MTBF|as per MIL-HDBK-217F, 25°C<br>12 Vdc output models<br>15, 24 Vdc output models<br>28 Vdc output models<br>48 Vdc output models<br>561,000<br>612,000<br>603,000<br>610,000<br>hours<br>hours<br>hours<br>hours| |RoHS|yes| |**ENVIRONMENTAL**|| |**parameter**|**conditions/description**<br>**min**<br>**typ**<br>**max**<br>**units**| |operating temperature|see derating curve<br>-40<br>105<br>°C| |storage temperature|-40<br>105<br>°C| |humidity|non condensing<br>-<br>95<br>%| |operating altitude|5,000<br>m| **cui** .com Additional Resources: Product Page **CUI Inc │ SERIES:** PST50W **│ DESCRIPTION:** DC-DC CONVERTER **date** 02/10/2024 **│ page** 4 of 8 ## **MECHANICAL** |**MECHANICAL**|||||| |---|---|---|---|---|---| |**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**| |base plate material|aluminum||||| |potting material|UL 94V-0 (DC Module)||||| ||without case: 4.60 x 2.40 x 1.46 [116.8 x 61.0 x 37.0 mm]||||inch| |dimensions|with case: 4.60 x 2.49 x 1.46 [116.8 x 63.4 x 37.0 mm]<br>with case & heatsink: 4.60 x 2.49 x 2.40 [116.8 x 63.4 x 61.0 mm]||||inch<br>inch| ||with case, heatsink & DIN rail: 4.60 x 2.49 x 3.02 [116.8 x 63.4 x 76.7 mm]||||inch| ||without case||215||g| |weight|with case<br>with case & heatsink||250<br>470||g<br>g| ||with case, heatsink, & DIN rail||490||g| ## **MECHANICAL DRAWING** units: inch[mm] general tolerance: inches: x.xx = ±0.02, x.xxx = ±0.010 ## **Without Case** milimeters: x.x = ±0.5, x.xx = ±0.25 Se ## **PIN CONNECTIONS CN1 & CN2** |PIN<br>1<br>2<br>3|FUNCTION<br>+Vin<br>-Vin<br>remote| |---|---| |4|case| |5|+Vout| |6|+Vout| |7|-Vout| |8|-Vout| ## **PIN CONNECTIONS CN3** |PIN|FUNCTION| |---|---| |1|-Vout| |2|-sense| |3|+sense| |4|+Vout| **==> picture [46 x 8] intentionally omitted <==** **----- Start of picture text -----**<br> With Case<br>**----- End of picture text -----**<br> - JP1: Short PIN1 & PIN2 - JP2: Short PIN3 & PIN4 **cui** .com Additional Resources: Product Page **CUI Inc │ SERIES:** PST50W **│ DESCRIPTION:** DC-DC CONVERTER **date** 02/10/2024 **│ page** 5 of 8 ## **MECHANICAL DRAWING** ## units: inch[mm] general tolerance: inches: x.xx = ±0.02, x.xxx = ±0.010 milimeters: x.x = ±0.5, x.xx = ±0.25 ## **With Case and Heatsink** ## **PIN CONNECTIONS CN1 & CN2** |PIN|FUNCTION| |---|---| |1|+Vin| |2|-Vin| |3|remote| |4|case| |5|+Vout| |6|+Vout| |7|-Vout| |8|-Vout| ## **PIN CONNECTIONS CN3** |PIN|FUNCTION| |---|---| |1|-Vout| |2|-sense| |3|+sense| |4|+Vout| ## **With Case, Heatsink, and DIN rail** - JP1: Short PIN1 & PIN2 - JP2: Short PIN3 & PIN4 **cui** .com Additional Resources: Product Page **CUI Inc │ SERIES:** PST50W **│ DESCRIPTION:** DC-DC CONVERTER **date** 02/10/2024 **│ page** 6 of 8 ## **DERATING CURVES** ## **EFFICIENCY CURVES** **cui** .com Additional Resources: Product Page **CUI Inc │ SERIES:** PST50W **│ DESCRIPTION:** DC-DC CONVERTER **date** 02/10/2024 **│ page** 7 of 8 ## **EFFICIENCY CURVES (CONTINUED)** **cui** .com Additional Resources: Product Page **CUI Inc │ SERIES:** PST50W **│ DESCRIPTION:** DC-DC CONVERTER **date** 02/10/2024 **│ page** 8 of 8 ## **REVISION HISTORY** |**rev.**|**description**|**date**| |---|---|---| |1.0|initial release|02/10/2024| The revision history provided is for informational purposes only and is believed to be accurate. **==> picture [122 x 39] 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.
Updated at April 29, 2026
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