PYBE20-Q48-S12-DIN

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## **SERIES:** PYBE20 **DESCRIPTION:** DC-DC CONVERTER **│** 

## **FEATURES** 

- up to 20 W isolated output 

- industry standard pin-out 

- 4:1 input range (9~36 Vdc, 18~75 Vdc) 

- single/dual regulated outputs 

- 1500 Vdc isolation 

- continuous short circuit protection 

- efficiency up to 90% 

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

- UL 60950-1 approval on select models 

|rowsCALs<br>CE|||||||||
|---|---|---|---|---|---|---|---|---|
|**MODEL**<br>rowsCALs<br>CE|**voltage**|**input**<br>**voltage**|**output**<br>**voltage**||**output**<br>**current**|**output**<br>**power**|**ripple**<br>**& noise1**|**efficiency2**|
||**typ**|**range**||**min**|**max**|**max**|**max**|**typ**|
||(Vdc)|(Vdc)|(Vdc)|(mA)|(mA)|(W)|(mVp-p)|(%)|
|PYBE20-Q24-S3|24|9~36|3.3|0|5000|16.5|100|86|
|PYBE20-Q24-S5|24|9~36|5|0|4000|20|100|88|
|PYBE20-Q24-S9|24|9~36|9|0|2222|20|100|89|
|PYBE20-Q24-S12|24|9~36|12|0|1667|20|100|89|
|PYBE20-Q24-S15|24|9~36|15|0|1333|20|100|90|
|PYBE20-Q24-S24|24|9~36|24|0|834|20|100|90|
|PYBE20-Q24-D5|24|9~36|±5|0|±2000|20|100|86|
|PYBE20-Q24-D9|24|9~36|±9|0|±1111|20|100|88|
|PYBE20-Q24-D12|24|9~36|±12|0|±834|20|100|88|
|PYBE20-Q24-D15|24|9~36|±15|0|±667|20|100|88|
|PYBE20-Q48-S3|48|18~75|3.3|0|5000|16.5|100|86|
|PYBE20-Q48-S5|48|18~75|5|0|4000|20|100|86|
|PYBE20-Q48-S9|48|18~75|9|0|2222|20|100|89|
|PYBE20-Q48-S12|48|18~75|12|0|1667|20|100|87|
|PYBE20-Q48-S15|48|48<br>18~75|15|0|1333|20|100|90|
|PYBE20-Q48-S24|48|18~75|24|0|834|20|100|88|
|PYBE20-Q48-D5|48|18~75|±5|0|±2000|20|100|86|
|PYBE20-Q48-D12|48|18~75|±12|0|±834|20|100|88|
|PYBE20-Q48-D15|48|18~75|±15|0|±667|20|100|89|



Notes: 1. From 5~100% load, nominal input, 20 MHz bandwidth oscilloscope, with 10 µF tantalum and 1 µF ceramic capacitors on the output. From 0~5% load, ripple and noise is 

2. Measured at nominal input voltage, full load. The typical efficiencies for the chassis mount and DIN-rail mount versions are ~2% less than the board mount versions due to the input reverse polarity protection. 3. All specifications are measured at Ta=25°C, humidity < 75%, nominal input voltage, and rated output load unless otherwise specified. 

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## **PART NUMBER KEY** 

## **- - - PYBE20 QXX X XX X** 

Base Number 

Input Voltage 

Output: S = single D = dual 

Output Voltage 

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

|**INPUT**||
|---|---|
|**parameter**|**conditions/description**<br>**min**<br>**typ**<br>**max**<br>**units**|
|operating input voltage|24 Vdc input models<br>48 Vdc input models<br>9<br>18<br>24<br>48<br>36<br>75<br>Vdc<br>Vdc|
|start-up voltage|24 Vdc input models<br>48 Vdc input models<br>9<br>18<br>Vdc<br>Vdc|
|surge voltage|for maximum of 1 second<br>24 Vdc input models<br>48 Vdc input models<br>-0.7<br>-0.7<br>50<br>100<br>Vdc<br>Vdc|
|under voltage shutdown|24 Vdc input models<br>48 Vdc input models<br>5.5<br>12<br>6.5<br>15.5<br>Vdc<br>Vdc|
|current|24 Vdc input models<br>3.3 Vdc output models<br>5 Vdc output models<br>all other models<br>818<br>993<br>969<br>mA<br>mA<br>MA|
||48 Vdc input models<br>3.3 Vdc output models<br>5 Vdc output models<br>all other models<br>409<br>497<br>485<br>mA<br>mA<br>mA|
|remote on/of (CTRL)4|turn on (3.5~12 Vdc or open circuit)<br>turn of (<1.2 Vdc)<br>input current when switched of<br>4<br>7<br>mA|
|flter|Pi flter|
|input reverse polarity protection|only present on chassis mount and DIN-rail mount models|
|no load power consumption|0.15<br>W|



Notes: 4. The voltage of the CTRL pin is referenced to input GND pin. 

|**OUTPUT**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
||3.3, 5 Vdc output models|||10,000|μF|
||9 Vdc output models|||4,700|μF|
||12 Vdc output models|||1,600|μF|
|maximum capacitive load5|24 Vdc output models<br>±5 Vdc output models|||500<br>4,800|μF<br>μF|
||15, ±9 Vdc output models|||1,000|μF|
||±12 Vdc output models|||800|μF|
||±15 Vdc output models|||625|μF|
|voltage accuracy6|0% to full load||±1|±3|%|
||from low line to high line, full load|||||
|line regulation|positive outputs||±0.2|±0.5|%|
||negative outputs||±0.5|±1|%|
||from 5% to full load|||||
|load regulation7|positive outputs||±0.5|±1|%|
||negative outputs||±0.5|±1.5|%|



- Note: 5. Tested at input voltage range and full load. 

6. At 0~5% load, the max output voltage accuracy for the ±5 & ±9 Vdc output models is ±5%. 

7. At 0~100% load, the max load regulation is ±5%. 

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## **OUTPUT (CONTINUED)** 

|**OUTPUT(CONTINUED**|**)**|||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
||dual output models:|||||
|cross regulation|main output 50% load|||±5|%|
||secondary output from 10~100% load|||||
|start-up time|nominal input, constant resistive load||10||ms|
|adjustability8|see application notes||±10||%|
|switching frequency9|PWM mode||270||kHz|
|transient recovery time|25% load step change, nominal input voltage||300|500|μs|
||25% load step change, nominal input voltage|||||
|transient response deviation|3.3, 5, ±5 Vdc output models||±5|±8|%|
||all other models||±3|±5|%|
|temperature coefcient|at full load|||±0.03|%/°C|



Note: 8. For single output models only. 

9. Value is based on full load. At loads <50%, the switching frequency decreases with decreasing load 

## **PROTECTIONS** 

|**PROTECTIONS**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|over voltage protection||110||160|%|
|over current protection||110||190|%|
|short circuit protection|hiccup, continuous, self recovery|||||
|**SAFETY AND COMPLIANCE**||||||
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|isolation voltage|input to output for 1 minute at 1 mA|1,500|||Vdc|
|isolation resistance|input to output at 500 Vdc|1,000|||MΩ|
||input to output, 100 kHz / 0.1 V|||||
|isolation capacitance|PYBE20-Q24-S24||2,050||pF|
||all other models||1,050||pF|
|safety approvals10, 11|UL 60950-1, EN 62368-1|||||
|conducted emissions|CISPR32/EN55032, class A (no external circuit); class B (external circuit required,|||see Figure|3-b, 4-b)|
|radiated emissions|CISPR32/EN55032, class A (no external circuit); class B (external circuit required,|||see Figure|3-b, 4-b)|
|ESD|IEC/EN61000-4-2, contact ± 4kV, class B|||||
|radiated immunity|IEC/EN61000-4-3, 10V/m, class A|||||
|EFT/burst|IEC/EN61000-4-4, ± 2kV, class B (external circuit required, see Figure 3-a, 4-a)|||||
|surge|IEC/EN61000-4-5, line-line ± 2kV, class B (external circuit required, see Figure 3-a, 4-a)|||||
|conducted immunity|IEC/EN61000-4-6, 3 Vr.m.s, class A|||||
|voltage dips & interruptions|IEC/EN61000-4-29, 0%-70%, class B|||||
|MTBF|as per MIL-HDBK-217F, 25°C|1,000,000|||hours|
|RoHS|yes|||||



Note: 10. UL approval only for board mount models. 

11. CE approval for all board mount, chassis mount, and DIN-rail mount models except for PYBE20-Q24-D9 versions. 

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## **ENVIRONMENTAL** 

|**ENVIRONMENTAL**||||||
|---|---|---|---|---|---|
|**parameter**|**conditions/description**|**min**|**typ**|**max**|**units**|
|operating temperature|see derating curves|-40||85|°C|
|storage temperature||-55||125|°C|
|storage humidity|non-condensing|5||95|%|
|vibration|10~55 Hz, for 30 minutes on each axis||10||G|



## **DERATING CURVES** 

Temperature Derating Curve (Natural Convection) 

**==> picture [257 x 156] intentionally omitted <==**

**----- Start of picture text -----**<br>
120<br>100<br>80<br>60<br>40<br>20<br>  0<br>-40 0 40 71 85 120<br>Ambient Temperature (°C)<br>Output Load (%)<br>**----- End of picture text -----**<br>


## **SOLDERABILITY[12]** 

|**SOLDERABILITY12**|**SOLDERABILITY12**|**SOLDERABILITY12**|**SOLDERABILITY12**|
|---|---|---|---|
|**parameter**<br>**conditions/description**<br>**min**<br>**typ**<br>**max**<br>**units**||||
|hand soldering<br>1.5 mm from case for 10 seconds<br>300<br>°C||||
|wave soldering<br>see wave soldering profle<br>260<br>°C||||
|Temperature (°C)<br>250<br>200<br>150<br>100<br>50<br>0<br>Note:<br>12. For board mount models only.||10 Sec. Max.<br>Wave Soldering Time<br>4 Sec. Max.<br>Peak Temp. 260°C Max.<br>Time (sec.)||
|||||
|||||
|||||



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## **MECHANICAL** 

|**MECHANICAL**|||||
|---|---|---|---|---|
|**parameter**|**conditions/description**<br>**min**|**typ**|**max**|**units**|
||board mount: 50.80 x 25.40 x 11.80 [2.000 x 1.000 x 0.465 inch]|||mm|
|dimensions|chassis mount: 76.00 x 31.50 x 21.20 [2.992 x 1.240 x 0.835 inch]|||mm|
||DIN-rail mount: 76.00 x 31.50 x 25.80 [2.992 x 1.240 x 1.016 inch]|||mm|
|case material|aluminum alloy||||
||board mount|25||g|
|weight|chassis mount|48||g|
||DIN-rail mount|68||g|



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

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

|PIN CONNECTIONS|PIN CONNECTIONS|PIN CONNECTIONS|
|---|---|---|
|PIN|Function||
||Single|Dual|
|1|GND|GND|
|2|Vin|Vin|
|3|+Vo|+Vo|
|4|trim|0V|
|5|0V|-Vo|
|6|CTRL|CTRL|



Note: Grid 2.54*2.54mm Recommended PCB Layout Top View 

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

units: mm [inch] tolerance: ±0.50[±0.020] 

wire range: 24~12 AWG tightening torque: max 0.4 N*m 

|wire range: 24~12 AWG<br>tightening torque: max 0.4 N*m|wire range: 24~12 AWG<br>tightening torque: max 0.4 N*m|wire range: 24~12 AWG<br>tightening torque: max 0.4 N*m|
|---|---|---|
|PIN CONNECTIONS|||
|PIN|Function||
||Single|Dual|
|1|CTRL|CTRL|
|2|GND|GND|
|3|Vin|Vin|
|4|0V|-Vo|
|5|trim|0V|
|6|+Vo|+Vo|



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

units: mm [inch] tolerance: ±0.50[±0.020] 

installed on DIN rail TS35 wire range: 24~12 AWG tightening torque: max 0.4 N*m 

|installed on DIN rail TS35<br>wire range: 24~12 AWG<br>tightening torque: max 0.4 N*m|installed on DIN rail TS35<br>wire range: 24~12 AWG<br>tightening torque: max 0.4 N*m|installed on DIN rail TS35<br>wire range: 24~12 AWG<br>tightening torque: max 0.4 N*m|
|---|---|---|
|PIN CONNECTIONS|||
|PIN|Function||
||Single|Dual|
|1|CTRL|CTRL|
|2|GND|GND|
|3|Vin|Vin|
|4|0V|-Vo|
|5|trim|0V|
|6|+Vo|+Vo|



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## **APPLICATION CIRCUIT** 

This series has been tested according to the following recommended circuits (Figures 1 & 2) before leaving the factory. If you want to further reduce the input and output ripple, you can increase the input and output capacitors or select capacitors of low equivalent impedance provided that the capacitance is less than the maximum capacitive load of the model. 

**Figure 1 Single Output Models** 

**==> picture [290 x 52] intentionally omitted <==**

**----- Start of picture text -----**<br>
Vin +Vo<br>Cin<br>DC DC Cout<br>G ND 0V<br>**----- End of picture text -----**<br>


**==> picture [293 x 96] intentionally omitted <==**

**----- Start of picture text -----**<br>
Figure 2<br>Dual Output Models<br>+Vo<br>Vin<br>Cout<br>Cin DC DC 0V<br>Cout<br>G ND<br>-Vo<br>**----- End of picture text -----**<br>


|Vout<br>(Vdc)|Cin<br>(μF)|Cout<br>(μF)|
|---|---|---|
|3.3/5|100|470|
|9/12/15|100|220|
|24|100|100|
|±5|100|220|
|±9/±12/±15|100|100|



## **EMC RECOMMENDED CIRCUIT** 

**Figure 3 Single Output Models** 

**Table 2** 

**==> picture [448 x 122] intentionally omitted <==**

**----- Start of picture text -----**<br>
B)<br>Recommended External Circuit Components<br>Vin (Vdc) 24 48<br>FUSE choose according to actual input current<br>C0, C3 330 µF / 50 V 330 µF / 100 V<br>C1 1 µF / 50 V 1 µF / 100 V<br>Figure 4<br>C2 Refer to the Cout in Table 1<br>Dual Output Models<br>LDM1 4.7 µH / 3.1 A<br>ADMLOM1.CY1 | === CY1, CY2 1 nF / 2 kV<br>**----- End of picture text -----**<br>


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## **APPLICATION NOTES** 

Output voltage trimming Leave open if not used. 

## **Figure 5** 

Application Circuit for Trim pin (part in broken line is the interior of models) 

Formula for Trim Resistor 

+Vo +Vo aR 2 Vref up: R T= -R3 a= R 1 R2-a Vo’ - Vref aR 1 Vo’ - Vref R1 R 3 R1 RT down : R T= R1-a -R3 a= Vref R 2 VRre f2 R T Trim V ref R3 Trim Note:   Value for R1, R2, R3, and Vref refer to Table 3                    RT: Trim Resistor a: User-defined parameter, no actual meanings R2 Vo': The trim up/down voltage ~~a~~ **Table 3** 0V 0V Vout R1 R2 R3 Vref Trim up Trim down (Vdc) (kΩ) (kΩ) (kΩ) (V) 3.3 4.801 2.87 12.4 1.24 5 2.883 2.87 10 2.5 9 7.500 2.87 15 2.5 12 11.000 2.87 15 2.5 15 14.494 2.87 15 2.5 24 24.872 2.87 17.8 2.5 

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## **PACKAGING (BOARD MOUNT)** 

units: mm 

Tube Size: 54.3 x 20 mm Inner Carton Size: 575 x 135 x 100 mm Outer Carton Size: 600 x 285 x 225 mm Outer Carton QTY: 456 pcs 

**==> picture [450 x 563] intentionally omitted <==**

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## **PACKAGING (CHASSIS, DIN-RAIL MOUNT)** 

units: mm 

Inner Carton Size: 370 x 350 x 115 mm Outer Carton Size: 400 x 365 x 255 mm Outer Carton QTY: 96 pcs 

**==> picture [348 x 244] intentionally omitted <==**

**==> picture [270 x 121] intentionally omitted <==**

**==> picture [354 x 170] intentionally omitted <==**

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## **REVISION HISTORY** 

|**rev.**|**description**|**date**|
|---|---|---|
|1.0|initial release|01/24/2019|



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

**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.