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PBK-3-9
PCB MOUNT AC-DC CONVERTERS POWER SUPPLY
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: BEL / PARTNER STOCK
- Product type: AC / DC PCB Mount Power Supplies
- SVHC: To Be Advised
- Product Range: PBK-3 Series
| Delivery and price | |
|---|---|
| Units per pack | 21 |
| Price | 13.38 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
Additional Resources: Product Page ~~_~~ **date** 03/25/2014 **page** 1 of 9 ## **SERIES:** PBK-3 **DESCRIPTION:** AC-DC POWER SUPPLY **│** ## **FEATURES** - up to 3 W continuous output - compact SIP package - single regulated outputs from 3.3~24 V - 3,000 Vac isolation - over current and short circuit protections - CE, UL60950-1 safety approval - wide input voltage: 100~400 Vdc (85~264 Vac) - efficiency up to 78% |**MODEL**<br>**output**<br>**voltage**<br>**output**<br>**current**<br>**output**<br>**power**<br>**ripple**<br>**and noise2**<br>**effi ciency**<br>(Vdc)<br>**max**<br>(mA)<br>**max**<br>(W)<br>**max**<br>(mVp-p)<br>**typ**<br>(%)<br>PBK-3-31<br>3.3<br>500<br>1.65<br>150<br>66<br>PBK-3-5<br>5<br>500<br>2.5<br>150<br>69<br>PBK-3-9<br>9<br>333<br>3<br>120<br>76<br>PBK-3-12<br>12<br>250<br>3<br>120<br>78<br>PBK-3-15<br>15<br>200<br>3<br>120<br>78<br>PBK-3-24<br>24<br>125<br>3<br>120<br>78<br>DISCONTINUED| |---| Note: 1. The PBK-3-3 & PBK-3-3-B do not meet UL and CE standards. 2. Measured at 20 MHz bandwidth, see Test Confi guration section. ## **PART NUMBER KEY** ## **- PBK 3- XX - X** Base Number Output Voltage Orientation “blank” = vertical B = right-angle **cui** .com Additional Resources: Product Page **CUI Inc │ SERIES:** PBK-3 **│ DESCRIPTION:** AC-DC POWER SUPPLY **date** 03/25/2014 **│ page** 2 of 9 ## **INPUT** |**INPUT**<br>|| |---|---| |**parameter**<br>**conditions/description**<br>**min**<br>|**typ**<br>**max**<br>**units**<br>| |voltage<br>85<br>100<br>|264<br>400<br>Vac<br>Vdc<br>| |frequency<br>47<br>|440<br>Hz<br>| |current<br>at 115 Vac<br>at 230 Vac<br>|120<br>60<br>mA<br>mA<br>| |inrush current<br>at 115 Vac<br>at 230 Vac<br>|20<br>40<br>A<br>A<br>| |no load power consumption<br>|0.5<br>W<br>| |input fuse<br>1 A/250 V, slow-blow type (external, required)<br>|| |**OUTPUT**<br>|| |**parameter**<br>**conditions/description**<br>**min**<br>|**typ**<br>**max**<br>**units**<br>| |output current<br>10<br>|%<br>| |capacitive load<br>3.3 Vdc output models<br>5 Vdc output models<br>9 Vdc output models<br>all other models<br>|2300<br>470<br>150<br>100<br>μF<br>μF<br>μF<br>μF<br>| |line regulation<br>3.3 Vdc models, at full load<br>all other models, at full load<br>|±0.5<br>±1.5<br>%<br>%<br>| |load regulation<br>3.3 Vdc models, at 10%~100% load<br>all other models, at 10%~100% load<br>|±1.5<br>±2.5<br>%<br>%<br>| |voltage set accuracy<br>3.3 Vdc output models<br>9 & 12 Vdc output models<br>all other models<br>|±3<br>±8<br>±5<br>%<br>%<br>%<br>| |hold-up time<br>at 115 Vac<br>at 230 Vac<br>60<br>300<br>|ms<br>ms<br>| |switching frequency<br>3.3 Vdc output models<br>all other models<br>|100<br>50<br>kHz<br>kHz<br>| |temperature coeff cient<br>|±0.15<br>%/°C<br>| |**PROTECTIONS**<br>|| |**parameter**<br>**conditions/description**<br>**min**<br>|**typ**<br>**max**<br>**units**<br>| |short circuit protection<br>continuous, auto restart<br>|| |over current protection<br>auto restart<br>|| |**SAFETY & COMPLIANCE**<br>|| |**parameter**<br>**conditions/description**<br>**min**<br>|**typ**<br>**max**<br>**units**<br>| |isolation voltage<br>input to output, for 1 minute<br>3,000<br>|Vac<br>| |isolation resistance<br>100<br>|MΩ<br>| |safety approvals<br>UL60950-1, CE<br>|| |safety class<br>Class II<br>|| |conducted emissions<br>CISPR22/EN55022 external circuit required, Class A (see f gure 2); Class B (see f gure 3)<br>|| |radiated emissions<br>CISPR22/EN55022 external circuit required, Class A (see f gure 2); Class B (see f gure 3)<br>|| |ESD<br>IEC/EN61000-4-2 Class B, contact ±4 kV<br>|| |radiated immunity<br>IEC/EN61000-4-3 Class A, 10V/m (external circuit required, see f gure 3)<br>|| |EFT/burst<br>IEC/EN61000-4-4 Class B, ±2 kV (external circuit required, see f gure 2)<br>IEC/EN61000-4-4 Class B, ±4 kV (external circuit required, see f gure 3)<br>|| |surge<br>IEC/EN61000-4-5 Class B, ±1 kV/±2 kV (external circuit required, see f gure 3)<br>|| |conducted immunity<br>IEC/EN61000-4-6 Class A, 3 Vr.m.s (external circuit required, see f gure 3)|| |PFM<br>IEC/EN61000-4-8 Class A, 10 A/m|| **cui** .com Additional Resources: Product Page **CUI Inc │ SERIES:** PBK-3 **│ DESCRIPTION:** AC-DC POWER SUPPLY **date** 03/25/2014 **│ page** 3 of 9 ## **SAFETY & COMPLIANCE (CONTINUED)** **parameter conditions/description min typ max units** voltage dips & interruptions IEC/EN61000-4-11 Class B, 0%-70% MTBF at 25°C, max. load 300,000 hours RoHS 2011/65/EU **ENVIRONMENTAL parameter conditions/description min typ max units** operating temperature see derating curves -40 85 °C storage temperature -40 105 °C case temperature 90 °C humidity non-condensing 85 % ## **DERATING CURVES** **==> picture [562 x 472] intentionally omitted <==** **----- Start of picture text -----**<br> load vs. ambient temperature load vs. input voltage (Vac) load vs. input voltage (Vdc)<br>(at 110~240 Vac input voltage) (at 25°C) (at 25°C)<br>100 100 100<br>80 pp2 oS 80 fpes 80 po<br>60 4S 60 Eee)On sc 60 Eee<br>Safe operating area Safe operating area 50 Safe operating area<br>40 Ptett dey | ce 40 Le EE 40 CeTe<br>20 PPP 20 20<br>ee | ee COE<br>ee ee ae e e ee ee ee<br>-40 -30 -20 -10 40 50 55 60 70 80 85 90 85 95 105 110 115 125 235 240 245 255 264 70 90 100 110 130 310 330 340 350 370 390400<br>Ambient Temperature (°C) Input Voltage (Vac) Input Voltage (Vdc)<br>EFFICIENCY CURVES<br>effi eciency vs. load<br>PBK-3-12 effi eciency vs. input voltage (full load)<br>80 i 85<br>75<br>70 aea ees 85VAC 80 : = PBK-3-5<br>656055 ansama— 110VAC230VAC 75 i =— PBK-3-9PBK-3-12<br>70<br>50 me|| | | | [| | ||Ff 264VAC _— PBK-3-15<br>45 65 PBK-3-24<br>40 es<br>35 i 60<br>a<br>3025 a 55<br>85 110 120 220 230 240 264<br>10 20 30 40 50 60 70 80 90 100<br>Input Voltage(VAC)<br>Load (%)<br>effi eciency vs. load<br>PBK-3-12 effi eciency vs. input voltage (full load)<br>i 85<br>100VDC<br>ae 80 SS PBK-3-5<br>— ey 200VDC —— = PBK-3-9<br>eae ee 75 t+ + SS |<br>ee 300VDC Po tN PBK-3-12<br>PaAry) 70 —+++| ||7 PBK-3-15<br>400VDC<br>a eeon se PBK-3-24<br>65<br>i ee<br>es 60 P| | tT tt<br>a To<br>a 55<br>10 20 30 40 50 60 70 80 90 100 100 150 200 250 300 350 400<br>Load(%) Input Voltage(VDC)<br>O<br>C<br>S<br>~~ ~~ ~~<br>Load (%) Load (%) Load (%)<br>~~ ~~ ~~<br>Efficency (%) Efficiency(%)<br>Efficiency(%) Efficiency(%)<br>**----- End of picture text -----**<br> **cui** .com Additional Resources: Product Page **CUI Inc │ SERIES:** PBK-3 **│ DESCRIPTION:** AC-DC POWER SUPPLY **date** 03/25/2014 **│ page** 4 of 9 ## **SOLDERABILITY** **parameter conditions/description min typ max units** hand soldering for 3~5 seconds 350 360 370 °C wave soldering for 5~10 seconds 255 260 265 °C **MECHANICAL parameter conditions/description min typ max units** PBK-3-3 vertical model: 37 x 11 x 25 mm all other vertical models: 35 x 11 x 25 mm dimensions PBK-3-3 right-angle model: 37 x 13 x 25 mm all other right-angle models: 35 x 13 x 25 mm material UL94V-0 weight 8 g ## **MECHANICAL DRAWING** ## **PBK-3-3 VERTICAL ORIENTATION** units: mm[inch] tolerance: ±0.5[±0.020] pin tolerance: ±0.1[±0.004] |units: mm[inch]<br>tolerance: ±0.5[±0.020]<br>pin tolerance: ±0.1[±0.004]<br>**PIN CONNECTIONS**<br>PIN<br>FUNCTION<br>1<br>-Vin (N)<br>3<br>+Vin (L)<br>5<br>+V(CAP)<br>7<br>-V(CAP)<br>10<br>-Vo<br>12<br>+Vo<br>Note: 1. It is required to add C1 between<br>pins 5 & 7 (see application circuits).<br>DISCONTINUED<br>Max37.00 [1.457]<br>( aeraad<br>|<br>| boos<br>1<br>a<br>ain<br>Y po<br>=<br>om<br>|| foo<br>7<br>gi<br>H bm<br>3<br>a<br>|<br>13<br>58<br>7<br>10<br>1.60 [0.063]<br>—+|} ||—<br>0.80[0.031]| |---| Note: 1. It is required to add C1 between pins 5 & 7 (see application circuits). Note:Grid 2.54'2.54mm Q1.30 [00.051] CELLETSEE Terri PCE Top View PCB Layout Front View Bottom View **cui** .com Additional Resources: Product Page **CUI Inc │ SERIES:** PBK-3 **│ DESCRIPTION:** AC-DC POWER SUPPLY **date** 03/25/2014 **│ page** 5 of 9 ## **MECHANICAL DRAWING (CONTINUED)** ## **VERTICAL ORIENTATION (ALL OTHER MODELS)** units: mm[inch] tolerance: ±0.5[±0.020] pin tolerance: ±0.1[±0.004] |Front View<br>pin tolerance: ±0.1[±0.004]<br>**PIN CONNECTIONS**<br>PIN<br>FUNCTION<br>1<br>-Vin (N)<br>3<br>+Vin (L)<br>5<br>+V(CAP)<br>7<br>-V(CAP)<br>10<br>-Vo<br>12<br>+Vo<br>Note: 1. It is required to add C1 between<br>pins 5 & 7 (see application circuits).<br>DISCONTINUED<br>WW) eo!<br>(_—__]<br>a<br>an<br>S©<br>8<br>as<br>oS<br>J<br>eS<br>8<br>= ae|<br>x<br>f=)<br>=<br>=<br>6<br><= 6<br>138<br>8<br>LO:<br>12<br>oa<br>1.60 [0.063] —»<br>0.80[0.031)<br>5.08 [0.200]<br>7.62 [0.300]<br>17.78 [0.700]<br>27.94 [1.100]<br>Note:Grid 2.54°2.54mm| |---| Note: 1. It is required to add C1 between pins 5 & 7 (see application circuits). [_J[ | | l DOO FS OT Scane — ro al rT TT TL TI 0.65 [0.026] Top View PCB Layout Bottom View **cui** .com Additional Resources: Product Page **CUI Inc │ SERIES:** PBK-3 **│ DESCRIPTION:** AC-DC POWER SUPPLY **date** 03/25/2014 **│ page** 6 of 9 ## **MECHANICAL DRAWING (CONTINUED)** ## **PBK-3-3 RIGHT-ANGLE ORIENTATION** units: mm[inch] tolerance: ±0.5[±0.020] pin tolerance: ±0.1[±0.004] **==> picture [522 x 322] intentionally omitted <==** **----- Start of picture text -----**<br> PIN CONNECTIONS<br>PIN FUNCTION<br>oye Om ) foo<br>1 -Vin (N)<br>3 +Vin (L) 3 mitt H ae<br>5 +V(CAP) oOo omLULs [|H booton 0<br>7 -V(CAP)<br>f | ot Fg<br>10 -Vo<br>12 +Vo<br>- ||<br>| 3 =) 7 10 12<br>Note: 1. It is required to add C1 between<br>pins 5 & 7 (see application circuits). Front View Side View<br>Note:Grid 2.54°2.54mm<br>EEE i apes<br>LEpeesetseTaeee ri Ty ¥ toot<br>7 7 he | eae sou Woe<br>ASHEsacedianataiaad0 12) 0.80 [0.031] =n<br>are 5.08 [0.200] 7.62 [0.300]<br>Top View Bottom View<br>PCB Layout<br>**----- End of picture text -----**<br> Note: 1. It is required to add C1 between pins 5 & 7 (see application circuits). **cui** .com Additional Resources: Product Page **CUI Inc │ SERIES:** PBK-3 **│ DESCRIPTION:** AC-DC POWER SUPPLY **date** 03/25/2014 **│ page** 7 of 9 ## **MECHANICAL DRAWING (CONTINUED)** ## **RIGHT-ANGLE ORIENTATION (ALL OTHER MODELS)** units: mm[inch] tolerance: ±0.5[±0.020] pin tolerance: ±0.1[±0.004] **==> picture [563 x 567] intentionally omitted <==** **----- Start of picture text -----**<br> PIN CONNECTIONS<br>PIN FUNCTION +<br>s<br>1 -Vin (N)<br>J [|<br>3 +Vin (L) S S<br>5 +V(CAP)<br>M4 = S<br>7 -V(CAP) S—<br>10 -Vo<br>12 +Vo i13053 § 70¥ 10 12 aa<br>Note: 1. It is required to add C1 between Front View Side View<br>pins 5 & 7 (see application circuits).<br>Note: Grid 2.54'2. 54mm<br>| on ee e an Max 13.00[0.512]<br>Eee 080 (0.031]— _—.<br>| LK Prt ey J 5.08 [0.200] |_|. es [0.300]<br>LITitTifitiiti A ~—17.78 [0.700]<br>~91.30 [00.051] 27.94 [1.100]<br>Top View<br>Bottom View<br>PCB Layout<br>TEST CONFIGURATION<br>Figure 1 Table 1<br>Connect Oscillograph Probe C Recommended External Circuit Components e<br>CY0<br>Copper sheet VOUT C1 [1] C2 [1] L1 [1] C3 [1] C4 (Y1<br>(Vdc)<br>capacitor)<br>FUSE +Vo L1 3.3 22μF/400V 330μF/25V 2.2μH 120μF/25V 0.1μF/50V 1nF/400Vac<br>=_ Aa / a 5 22μF/400V ee 330μF/25V es 2.2μH eses 68μF/35V 0.1μF/50V es 1nF/400Vac<br>C 1 + C 2 C 3 C 4 a 9 22μF/400V 330μF/25V 2.2μH 68μF/35V 0.1μF/50V 1nF/400Vac<br>AC-DC 12 22μF/400V 150μF/35V 2.2μH 68μF/35V 0.1μF/50V 1nF/400Vac<br>= = = a ee ee es es<br>15 22μF/400V 150μF/35V 2.2μH 68μF/35V 0.1μF/50V 1nF/400Vac<br>° a a 24 22μF/400V ee 100μF/35V ee 2.2μH ee 68μF/35V es 0.1μF/50V ee 1nF/400Vac<br>-Vo pf eA ee<br>Note: 1. Required components.<br>2. 1 A/250 V fuse required.<br>CY0<br>CONTINUED<br>Lo ad<br>**----- End of picture text -----**<br> **cui** .com Additional Resources: Product Page **CUI Inc │ SERIES:** PBK-3 **│ DESCRIPTION:** AC-DC POWER SUPPLY **date** 03/25/2014 **│ page** 8 of 9 ## **TYPICAL APPLICATION CIRCUIT** |AC(L)<br>AC(N)<br>**Figure 2**<br>|AC(L)<br>AC(N)<br>**Figure 2**<br>|AC(L)<br>AC(N)<br>**Figure 2**<br>|AC(L)<br>AC(N)<br>**Figure 2**<br>|C1<br>+<br>����<br>���<br>MOV1<br>L2<br>|C1<br>+<br>����<br>���<br>MOV1<br>L2<br>|C1<br>+<br>����<br>���<br>MOV1<br>L2<br>|C1<br>+<br>����<br>���<br>MOV1<br>L2<br>|1<br>+Vo<br>-Vo<br>10<br>12<br>5<br>3<br>7<br>AC-DC<br>|1<br>+Vo<br>-Vo<br>10<br>12<br>5<br>3<br>7<br>AC-DC<br>||C2<br>C3<br><br>+<br>L1<br>+<br>|C2<br>C3<br><br>+<br>L1<br>+<br>|TVS<br>R<br>C4<br>|TVS<br>R<br>C4<br>|TVS<br>R<br>C4<br>|| |---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---| |||||MOV1<br>||||||||||||| |||||||||||||||||| |||||||||||||(1)<br> <br>||||| |||||||||||||||||| |||||||||||||||||| |||||Recommended External Circuit Components<br>||||||||||||| |VOUT<br>(Vdc)<br>|C11<br>|L2<br>|C21<br>||L11<br>|C31<br>|||C4<br>|||CY0<br>|FUSE1<br>|TVS<br>|NTC<br>|MOV1<br>| |3.3<br>|22μF/400V<br>|5mH<br>|330μF/25V<br>||2.2μH<br>|120μF/25V<br>|||0.1μF/50V<br>|||1nF/400Vac<br>|1A/250V<br>|SMBJ7.0A<br>|5D-9<br>|S14K350<br>| |5<br>|22μF/400V<br>|5mH<br>|330μF/25V<br>||2.2μH<br>|68μF/35V<br>|||0.1μF/50V<br>|||1nF/400Vac<br>|1A/250V<br>|SMBJ7.0A<br>|5D-9<br>|S14K350<br>| |9<br>|22μF/400V<br>|5mH<br>|330μF/25V<br>||2.2μH<br>|68μF/35V<br>|||0.1μF/50V<br>|||1nF/400Vac<br>|1A/250V<br>|SMBJ12A<br>|5D-9<br>|S14K350<br>| |12<br>|22μF/400V<br>|5mH<br>|150μF/35V<br>||2.2μH<br>|68μF/35V<br>|||0.1μF/50V<br>|||1nF/400Vac<br>|1A/250V<br>|SMBJ20A<br>|5D-9<br>|S14K350<br>| |15<br>|22μF/400V<br>|5mH<br>|150μF/35V<br>||2.2μH<br>|68μF/35V<br>|||0.1μF/50V<br>|||1nF/400Vac<br>|1A/250V<br>|SMBJ20A<br>|5D-9<br>|S14K350<br>| |24<br>|22μF/400V<br>|5mH<br>|100μF/35V<br>||2.2μH<br>|68μF/35V<br>|||0.1μF/50V<br>|||1nF/400Vac<br>|1A/250V<br>|SMBJ30A<br>|5D-9<br>|S14K350<br>| |Note:<br>1. Required components.<br>||||||||||||||||| ## **EMC RECOMMENDED CIRCUIT** **==> picture [472 x 108] intentionally omitted <==** **----- Start of picture text -----**<br> F USE L1 TVS C4 RL<br>AC(L) AC(L) 12<br>LDM +Vo<br>LCM CY1<br>Figure 3 MOV2 CX CY2 C+1 5 AC-DC + C2 + C3<br>7<br>-Vo<br>AC(N) AC(N) 10<br>CY0<br>**----- End of picture text -----**<br> ## **Table 3** |**Table 3**<br>|**Table 3**<br>| |---|---| |Recommended External Circuit Components<br>|| |MOV2<br>|S10K300<br>| |CY1, CY2<br>|1nF/400Vac<br>| |CX<br>|0.1μF/275Vac<br>| |LCM<br>|3.5mH<br>| |LDM<br>|5mH<br>| |FUSE<br>|1A/250V, slow blow<br>| |Note:<br>Also refer to Table 2.<br>|| - Notes: 1. C1 and C3 are electrolytic capacitors. They are required for both AC input and DC input. 4. C2 and C3 are output fi ler capacitors, we recommend high frequency and low impedance electrolytic capacitors. For capacitance and rated ripple current of capacitors refer to the datasheets provided by the manufacturers, voltage derating of capacitors should be 80% or above. 5. C4 is a ceramic capacitor which is used to fi lter high frequency noise. C2, C3 and L1 form a pi-type fi lter circuit. For current of L1 and L2 refer to the datasheets provided by the manufacturers, current derating should be 80% or above. TVS is a recommended component to protect post-circuits (if converter fails). We recommend using a 5D-9 external input NTC. **cui** .com Additional Resources: Product Page **CUI Inc │ SERIES:** PBK-3 **│ DESCRIPTION:** AC-DC POWER SUPPLY **date** 03/25/2014 **│ page** 9 of 9 ## **REVISION HISTORY** |**rev.**<br>|**description**<br>|**date**<br>| |---|---|---| |1.0<br>|initial release<br>|08/09/2013<br>| |1.01<br>|added 3.3 Vdc output model, added bent pin model options, updated<br>emc recommendations<br>|03/25/2014<br>| The revision history provided is for informational purposes only and is believed to be accurate. **Headquarters** 20050 SW 112th Ave. Fax 503.612.2383 Tualatin, OR 97062 **cui** .com **800.275.4899** 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 27, 2026
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