SRBH-06H1A1R

The SRBH-06H1A1 is part of the low cost non-isolated dc/dc power converter series providing up to 6A output current. 

The output is closely regulated and the efficiency of 3.3Vdc output is typically 89% at full load. 

Typical features include remote on/off, input under voltage lockout, over current protection and short circuit protection. 

- 8-36 VDC Input / 3.3-5 VDC @ 6 A Output 

- Non-isolated output 

- High Efficiency 

- High Power Density 

- Excellent Thermal Performance 

- OCP/SCP 

- Remote On/Off 

- Input Under Voltage Lockout 

- Low Cost 

- Class 2, Category 2, Non-Isolated DC/DC Converter (refer to IPC-9592B) 

- Distributed Power Architectures 

- Data Networking Equipment 

- Telecommunications Applications 

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SRBH-06H1A1 

2 

|MODEL<br>NUMBER|OUTPUT VOLTAGE|OUTPUT VOLTAGE<br>INPUT<br>VOLTAGE|MAX.<br>OUTPUT<br>CURRENT|MAX.<br>OUTPUT<br>POWER|TYPICAL EFFICIENCY|
|---|---|---|---|---|---|
|SRBH-06H1A1|3.3V -5V|8 V- 36 V|6 A|30 W|89%(Vo=3.3, Io=6A)|



NOTE :  Add “R” indicating Tape and Reel packaging. 

|S||R|BH|-|06|H|1A|1|R|
|---|---|---|---|---|---|---|---|---|---|
|Mounting Type|Mounting Type|Mounting Type<br>RoHS<br>Status|Status<br>Series Name|Series Name|Output<br>Current|Input Range|Input Range<br>Output Voltage|Active Logic|Package Type|
|SMD|SMD|RoHS|Arrow Head||6A|8V – 36V|3.3V -5.0V|Active High|R – Tape & Reel|



|PARAMETER|DESCRIPTION|MIN|TYP|MAX|UNITS|
|---|---|---|---|---|---|
|Continuous Non-operating Input Voltage||-0.3|-|38|V|
|Remote On/Off||-0.3|-|12|V|
|Ambient Temperature||-40|-|85|C|
|Storage Temperature||-40|-|125|C|
|Altitude||-|-|2000|m|



NOTE: Ratings used beyond the maximum ratings may cause a reliability degradation of the converter or may permanently damage the device. 

All specifications are typical at 25°C unless otherwise stated. 

|PARAMETER|DESCRIPTION|MIN|TYP|MAX|UNITS|
|---|---|---|---|---|---|
|Operating Input Voltage||8|-|36|V|
|Input Current (full load)|Vin=12V，Vo=3.3V，Io=6A|-|1.9|-|A|
|Input Current (no load)||-|30|-|mA|
|Remote Off Input Current||-|1.7|-|mA|
|Input Reflected Ripple Current (rms)<br>Input Reflected Ripple Current (pk-pk)|1uH, 2*100 uF/50 V electrolytic capacitors, 3*4.7<br>uF/50V ceramic capacitor at the input.|-<br>-|50<br>70|100<br>150|mA<br>mA|
|I2t Inrush Current Transient||-|-|1|A2s|
|Turn on Voltage Threshold<br>Turn off Voltage Threshold|Input under voltage lockout (UVLO).|-<br>3.5|7<br>4|7.5<br>-|V<br>V|



CAUTION: All specifications are typical at nominal input, full load at 25°C unless noted. 

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tech.support@psbel.com 

SRBH-06H1A1 

3 

All specifications are typical at nominal input, full load at 25°C unless otherwise stated. 

|PARAMETER|DESCRIPTION|MIN|TYP|MAX|UNITS|
|---|---|---|---|---|---|
|Output Voltage Set Point|Vin=12 V, Io=50% full load|3.234|3.300|3.366|V|
|Load Regulation||-|±10|±20|mV|
|Line Regulation||-|±10|±20|mV|
|Regulation Over Temperature|Regulation Over Temperature<br>-40 °C to +85 °C|-|30|50|mV|
|Ripple and Noise (pk-pk)||-|60|100|mV|
||Vout=3.3V|||||
|Ripple and Noise (rms)||-|25|50|mV|
|Output Current Range||0|-|6|A|
|Output DC Current Limit|Hiccup mode|7|10|13|A|
|Turn on Time(from Vin)||-|6|10|ms|
|Turn on Time(from Enable)||-|1|-|ms|
|Output capacitance||220|-|1200|uF|
|Transient Response||||||
|△V 50%~100% of Max Load||-|100|200|mV|
|Settling Time|di/dt = 0.5 A/us; Vin = 12 V; Vout=3.3V; with a|-|300|500|us|
|△V 100%~50% of Max Load|220 uF Oscan capacitor at the output|-|100|200|mV|
|Settling Time||-|300|500|us|



|PARAMETER|DESCRIPTION|MIN|MIN|TYP||MAX|UNITS|
|---|---|---|---|---|---|---|---|
|Efficiency|Vin=12V Vo=3.3V full load|87||89||-|%|
|Switching Frequency||-||300||-|KHz|
|Output Trim Range||3.3||-||5|V|
|Weight||-||4.3||-|g|
|MTBF||-||426,574,0||-|hours|
|Dimensions||||||||
|Inches (L × W × H)|||0.885 x 0.512 x 0.320|0.885 x 0.512 x 0.320|0.885 x 0.512 x 0.320||Inches|
|Millimeters (L × W × H)|||22.48 x 13.00 x 8.13||||mm|



|PARAMETER|DESCRIPTION|MIN|TYP|MAX|UNITS|
|---|---|---|---|---|---|
|Enable||||||
|Signal Low (Unit Off)||-0.3|-|1|V|
|Signal High(Unit On)|ENABLE pin open, unit on|2.8|-|12|V|
|Sourcing current||-|-|10|uA|



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Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 

© 2018 Bel Power Solutions & Protection 

Rev. AD 

SRBH-06H1A1 

4 

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Efficiency vs. Output Current at Tnor<br>1<br>0.9<br>0.8<br>0.7<br>8V<br>0.6<br>12V<br>0.5<br>24V<br>0.4 36V<br>0.3<br>0.2<br>0.1<br>0<br>0.3 0.6 1.2 1.8 2.4 3 3.6 4.2 4.8 5.4 6<br>OUTPUT CURRENT (Amp)<br>EFFICIENCY (%)<br>**----- End of picture text -----**<br>


Vin=12V, Vo=3.3V 

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tech.support@psbel.com 

SRBH-06H1A1 

5 

@ill 20.0mvySS”~™”:CSMOOS)AL Ch 11.2mv, @ill 20.0mvySS”~™”:CSMOOS)AL Ch 1 15 Mar 2017 Gy (0.00000 s 10:34:00 Gy (0.00000 s Ripple and noise at no load, Vin=12V                                                  Ripple and noise at full load, Vin=12V Tek Stop Ei] Tek Stop E——_a—__} 

Ripple and noise at no load, Vin=24V                                                      Ripple and noise at full load, Vin=24V Tek Stop _— 2k Stop _— 

Ripple and noise at no load, Vin=36V                                              Ripple and noise at full load, Vin=36V Note: Ripple and Noise at 3.3 Vdc output, with a 220 uF oscan capacitor cap at the output, Ta=25 deg C. 

Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 

© 2018 Bel Power Solutions & Protection 

Rev. AD 

SRBH-06H1A1 

6 

Note: Test Condition: Vin=12V, Iout=6A, with a 220uF oscan capacitor at the output. 

50% to 100% load transient at 12Vdc input                                          100% to 50% load transient at 12Vdc input, 5Vdc output and Ta=25 deg C                                                            5Vdc output and Ta=25 deg C 

Note: Test Condition: di/dt=0.5A/uS, Vin=12V, with a 220uF oscan capacitor at the output. 

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tech.support@psbel.com 

SRBH-06H1A1 

7 

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Under-voltage Lockout<br>l ————<br>l<br>V1=4V<br>l<br>l Voltage Falling  V2=7V<br>l<br>l<br>l Voltage Rising<br>l<br>l<br>l<br>|<br>V1 V2 Input Voltage (V)<br>Input Current<br>**----- End of picture text -----**<br>


Equations for calculating the trim resistor (in k Ω ) given the desired adjusted voltage (Vadj) and the nominal output voltage of the converter (Vnom=3.3V) are shown below. The Trim Down resistor should be connected between the Trim pin and Vout. The Trim Up resistor should be connected between the Trim pin and Ground. Only one of the resistors should be used for any given application. 

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Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 

© 2018 Bel Power Solutions & Protection 

Rev. AD 

SRBH-06H1A1 

8 

The SRBH-06H1A1 modules are designed to be compatible with reflow soldering process. The suggested Pb-free solder paste is Sn/Ag/Cu(SAC).  The recommended reflow profile using Sn/Ag/Cu solder is shown in the following. Recommended reflow peak temperature is 245℃ while the part can withstand peak temperature of 260℃ maximum for 10seconds.   This profile should be used only as a guideline.  Many other factors influence the success of SMT reflow soldering.  Since your production environment may differ, please thoroughly review these guidelines with your process engineers. 

The SRBH-06H1A1 modules have a MSL rating of 3. 

The SRBH-06H1A1 modules are designed to be compatible with J-STD-033 Rev:A (Handling, Packing, Shipping and Use of Moisture /Reflow Sensitive surface Mount devices). Moisture barrier bags (MBB) with desiccant are applied.  The recommended storage environment and handling procedure is detailed in J-STD-033. 

This component has been designed, handled, and packaged ready for Pb-free reflow soldering.  If the assembly shop follows J-STD-033 guidelines, no pre-bake of this component is required before being reflowed to a PCB. Our packaging tray can only withstand temperature of 70°C max. 

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tech.support@psbel.com 

9 

## SRBH-06H1A1 

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- 1) All Pins: Material - Copper Alloy; Finish – Tin plated 

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Pin Function<br>Remote<br>1  On/Off<br>2  Vin<br>3  GND<br>4  Vout<br>5 6 6  Trim N/A<br>7  N/A<br>**----- End of picture text -----**<br>


NOTES: 

- 2) Undimensioned components are shown for visual reference only. 

- 3) All dimensions in inches; Tolerances: x.xx +/-0.02 in [0.51 mm].  x.xxx +/-0.010 in [0.25 mm]. 

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Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 

© 2018 Bel Power Solutions & Protection 

Rev. AD 

SRBH-06H1A1 

10 

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375 “LX 1 4, 250 “W X 3.625<br>**----- End of picture text -----**<br>


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tech.support@psbel.com 

11 

## SRBH-06H1A1 

|DATE|REVISION|||CHANGES DETAIL|APPROVAL|
|---|---|---|---|---|---|
|2017-3-23|AA|||First release|S Wang|
|2017-05-16|AB|||Change MTBF UVLO, Add packaging information|S Wang|
|2017-08-29|AC|Update Line and load Regulation,|Update Line and load Regulation,|Update Line and load Regulation, Output Current Limit, Transient response, Input<br>Reflected Ripple Current.|S Wang|
|2018-04-26|AD|||Update PRE-BAKING|S Wang|



NUCLEAR AND MEDICAL APPLICATIONS - Products are not designed or intended for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems. TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. Specifications are subject to change without notice. 

Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 408 785 5200 

© 2018 Bel Power Solutions & Protection 

Rev. AD