MEAN WELL RQB150W3 series: Railway DC/DC converter - RQB150W3-110S24

Description

RQB150W3-110S24 — Railway DC/DC converter

MEAN WELL RQB150W3-110S24 is a fully encapsulated quarter-brick isolated DC/DC converter with a 60–160 V DC input range and a single 24 V, 6.25 A output rated at 150 W. It provides remote ON/OFF, remote sense and output trimming for railway and industrial systems, with external circuits and thermal design selected for the installation.

Download MEAN WELL RQB150W3 Datasheet (PDF)
Download MEAN WELL EMI Testing Guidance (PDF)

RQB150W3 specifications, controls, thermal and mechanical drawings, EMC circuits and packing: PDF pages 19–27.

Electrical specifications

Model and output configuration RQB150W3-110S24; isolated single-output DC/DC converter. The 110 code denotes nominal 110 V DC input and S denotes a single output.
Rated power 150 W, subject to the applicable input, load and thermal limits.
Output voltage 24 V DC
Output current 6.25 A
Minimum load No minimum load required.
Nominal input voltages and input range Nominal 72, 96 and 110 V DC; operating input 60–160 V DC. The series is described as 3:1 wide input.
No-load and full-load input current No load: 10 mA; full load: 1.52 A. Values are the model-selection table entries; general catalogue test conditions are stated below.
Typical efficiency 89%
Series capability reference RQB150W3 series efficiency is up to 89%; use this model's typical efficiency and operating limits for selection.
Maximum capacitive load 2000 µF
Input filter and protection Pi-type input filter; 4 A/250 V AC time-delay fuse.
Input surge voltage 200 V DC for 0.1 s maximum.
Setup time 300 ms maximum at 100% load and nominal input voltage.
Voltage accuracy ±1.0%
Ripple and noise 240 mVp-p; measured with 20 MHz bandwidth using a 12-inch twisted pair terminated with 0.1 µF and 47 µF capacitors.
Line and load regulation Line: ±0.2%, low line to high line at rated load. Load: ±0.4%, measured from 0% to 100% rated load.
Switching frequency 250 kHz typical.
General measurement conditions Unless separately specified: normal input 110 V DC, rated load, ambient 25°C and 70% RH.

Protection and control

Short-circuit protection Continuous protection with automatic recovery.
Overload protection 120–200% of rated output power; automatic recovery after the fault condition is removed.
Overvoltage protection Latched shutdown. The specification prints a 110–150% entry with the wording “rated output power” in the overvoltage row; confirm the applicable voltage threshold with MEAN WELL before relying on it for protection coordination.
Overtemperature protection Thermal shutdown at +115°C; automatic recovery after the fault condition is removed.
Input undervoltage lockout Start-up: 59 V; shutdown: 54 V.
Remote ON/OFF control Referenced to −Vin: ON with R.C. >3 V up to 12 V DC, or open circuit; OFF below 1.2 V DC, or short R.C. to −Vin.
Remote sense Remote voltage sensing is provided through the positive and negative sense pins identified in the model pin table.
Output trim range and connection ±10% typical. Connect the external trim-up resistor between Trim and −Vout; connect the trim-down resistor between Trim and +Vout. Observe output power, current and thermal limits after adjustment.
Trim calculation coefficients For 24 V nominal output: Vref=2.5 V; R1=86 kΩ; R2=10 kΩ; R3=76.8 kΩ. V′ is the target output voltage.
Trim resistor formulas Use consistent kΩ units. Up: A=Vref×R1/(V′−Vref); Rtrim_up=A×R2/(R2−A)−R3. Down: A=(V′−Vref)×R2/Vref; Rtrim_down=A×R1/(R1−A)−R3.

Supply interruption and external energy storage

Hold-up circuit Use the illustrated external R1, D1 and hold-up capacitor network for short supply interruptions. Select the capacitor network for input voltage and load; the listed hold-up times are circuit references, not bare-module guarantees. R1 is recommended as 25 Ω/10 W and must withstand the start-up pulse energy associated with the bus voltage and capacitance.
Hold-up capacitor selection At nominal 96/110 V input respectively: 10 ms (S2), 680/470 µF; 20 ms (S3), 1200/820 µF; 30 ms (C2), 1800/1200 µF. The 110 V, 470 µF, 10 ms example is at full load. Follow the illustrated input hold-up network; this model has no Vbus pin.

Thermal and environmental limits

Operating and case temperature Working ambient: −40 to +90°C with derating; case temperature +115°C maximum. A graph extending beyond +90°C does not extend the stated working-temperature range.
Cooling and thermal design Free-air/natural convection. Provide sufficient heat removal by conduction, convection and radiation for the actual installation; apply the model-specific derating curve and case-temperature limit.
Model-specific airflow derating Use the separate RQB150W3-110S24 curve on PDF page 23, measured at 110 V DC. Four curves identify 20, 100, 300 and 500 LFM airflow. The allowable load varies with output model, airflow and ambient temperature; do not apply the series thermal example as a universal full-load boundary.
Thermal calculation reference Pd=Pin−Po=Po×(1−η)/η; ΔT=Pd×Rca; Ta=Tc−ΔT. The catalogue example uses 12 V×12.5 A, η=0.87, Pd≈22.4 W and Rca=5.75°C/W, giving ΔT≈128.8°C. With an illustrative Tc=105°C it calculates Ta≈−23.8°C (about −25°C); it also describes about 50% load at 45°C. These are example assumptions, distinct from the +115°C case specification and the individual model/airflow curves.
Thermal test PCB The illustrated thermal-test layout is 137×88×1.6 mm with 2 oz copper; a local copper-area reference is 58.5×37 mm. It describes the test layout and heat conduction through the module to the PCB, not an included circuit-board accessory.
Working and storage humidity Working: 5–90% RH, non-condensing. Storage: −55 to +125°C and 10–95% RH, non-condensing.
Temperature coefficient 0.05%/°C over 0 to +65°C.
Soldering conditions Measure 1.5 mm from the case: 3–5 seconds at 260°C maximum.
Operating altitude 4000 m.

Isolation, railway standards and EMC

Safety approvals LVD IEC62368-1 and EAC TP TC 020/2011 approved.
Railway standards EN50155 with the specified external circuits, including EN61373 shock/vibration and EN50121-3-2 EMC.
Isolation withstand voltage Input–output: 3 kV AC; input–case: 1.5 kV AC.
Isolation resistance and capacitance Input–output resistance: 1000 MΩ at 500 V DC, 25°C, 70% RH non-condensing. Isolation capacitance: 3000 pF typical.
EMC emissions Conducted and radiated BS EN/EN55032 Class A/B require the corresponding external components and circuit. The suggestion circuits are referenced to 110 V DC input and full load; verify the complete equipment.
ESD and radiated immunity BS EN/EN61000-4-2 Level 3, ±6 kV contact; BS EN/EN61000-4-3 Level 3, 10 V/m.
EFT and surge immunity BS EN/EN61000-4-4 and -4-5 Level 3, ±2 kV on the power input port, with external input capacitance required: 100 µF/220 V ×3.
Conducted and magnetic immunity BS EN/EN61000-4-6 Level 3; the table prints 10 V/m (r.m.s.). Magnetic-field BS EN/EN61000-4-8: Level 4, 30 A/m.
Class A external-component reference Table entries: C1/C4 220 µF; C2/C3/C5/C6 0.68 µF; L1 2.0 mH; CY1/CY2 1000 pF; grouped CY3/CY4/CY5/CY6 entry 1200 pF ×4; C7 4.7 µF ×6. Preserve the listed grouped counts when confirming the implemented circuit.
Class A circuit connections L1 is a choke in both input rails. CY1 couples module +Vin to +Vout and CY2 couples −Vin to −Vout. CY3/CY4 couple input rails to shielding ground; CY5/CY6 couple output rails to shielding ground. The case joins this shielding-ground network; C7 is across the output.
Class B external-component reference Table entries: C1/C2/C7 100 µF; C3/C4/C5/C6/C8/C9 0.68 µF; L1/L2 2.0 mH; L3/L4 4.7 µH; CY1 2200 pF; CY2 1000 pF; grouped CY3/CY4/CY5/CY6 entry 2200 pF ×6; CY7/CY8 N.A.; C10 4.7 µF ×6.
Class B circuit connections L1/L2 are two input choke stages; L3/L4 are in the positive/negative input rails. CY1/CY2 couple the module input rails to their corresponding output rails; CY7/CY8 bridge the earlier input stage to the respective output rails. CY3/CY4 and CY5/CY6 connect input/output rails to shielding ground, with the case as drawn.
EMC component-rating selection The external-circuit tables on PDF page 26 do not specify capacitor voltage ratings. Confirm suitable input, output and isolation voltage ratings and the grouped capacitor quantities before implementing either reference circuit.

Mechanical integration and product information

Construction and dimensions Fully encapsulated quarter-brick module with industry-standard pinout; aluminum baseplate and plastic case. 57.9×36.8×12.7 mm (2.28×1.45×0.5 inches).
Pin assignment 1 +Vin; 2 Remote ON/OFF; 3 −Vin; 4 −Vout; 5 RS−; 6 Trim; 7 RS+; 8 +Vout. Use the drawing orientation when laying out and wiring the PCB.
Pin and mounting geometry Pins 4 and 8: Ø1.5 mm; pins 1, 2, 3, 5, 6 and 7: Ø1.0 mm. Pin extension: 4.1 mm. Two M3 threaded through mounting inserts; bottom-view references are 50.8 mm between pin rows, 47.2×26.2 mm mounting-insert offsets, and output-row spans 15.24 mm with a 7.62 mm half-span.
Mechanical tolerances Dimensions in mm: x.x ±0.5; x.xx ±0.25. The general pin-size note specifies 1.x ±0.1 mm.
Recommended PCB footprint Top-view footprint: 58.4 mm minimum ×37.3 mm minimum, on a 2.54 mm grid. Mounting holes Ø3.5±0.12 mm; small-pin holes Ø1.4±0.18 mm; large-pin holes Ø1.9±0.12 mm. Follow the individual hole positions in the model mechanical drawing.
Unit mass reference 70 g per unit, catalogue PACKING reference; not a measured net or shipment weight.
Packing reference 11 units per tube, tube gross weight 900 g; 132 units in 12 tubes per carton, carton gross weight 11.14 kg. Tube length 520 mm and illustrated cross-section 60.9×26.9 mm; carton L545×W145×H220 mm.
Reliability and warranty 200 Khrs MTBF to MIL-HDBK-217F at 25°C; 3-year manufacturer warranty.
Typical applications Bus, tram, metro and railway systems; telecom/datacom, wireless networks, industrial control, instruments and analyzers. The fully encapsulated design addresses vibration, dust and temperature exposure within the specified installation and operating limits.

Installation and system verification

Complete-system EMC verification Verify EMC with the converter installed in the final equipment and connected to a representative load. Wiring, assembly and the application affect the result. Follow the model's specified EMC conditions and any required external components; the linked EMI testing guidance does not certify the finished equipment.

MEAN WELL RQB150W3 series: Railway DC/DC converter - RQB150W3-110S24

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RQB150W3-110S24 — Railway DC/DC converter MEAN WELL RQB150W3-110S24 is a fully encapsulated quarter-brick isolated DC/DC converter with a 60–160 V... Read more

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    Description

    RQB150W3-110S24 — Railway DC/DC converter

    MEAN WELL RQB150W3-110S24 is a fully encapsulated quarter-brick isolated DC/DC converter with a 60–160 V DC input range and a single 24 V, 6.25 A output rated at 150 W. It provides remote ON/OFF, remote sense and output trimming for railway and industrial systems, with external circuits and thermal design selected for the installation.

    Download MEAN WELL RQB150W3 Datasheet (PDF)
    Download MEAN WELL EMI Testing Guidance (PDF)

    RQB150W3 specifications, controls, thermal and mechanical drawings, EMC circuits and packing: PDF pages 19–27.

    Electrical specifications

    Model and output configuration RQB150W3-110S24; isolated single-output DC/DC converter. The 110 code denotes nominal 110 V DC input and S denotes a single output.
    Rated power 150 W, subject to the applicable input, load and thermal limits.
    Output voltage 24 V DC
    Output current 6.25 A
    Minimum load No minimum load required.
    Nominal input voltages and input range Nominal 72, 96 and 110 V DC; operating input 60–160 V DC. The series is described as 3:1 wide input.
    No-load and full-load input current No load: 10 mA; full load: 1.52 A. Values are the model-selection table entries; general catalogue test conditions are stated below.
    Typical efficiency 89%
    Series capability reference RQB150W3 series efficiency is up to 89%; use this model's typical efficiency and operating limits for selection.
    Maximum capacitive load 2000 µF
    Input filter and protection Pi-type input filter; 4 A/250 V AC time-delay fuse.
    Input surge voltage 200 V DC for 0.1 s maximum.
    Setup time 300 ms maximum at 100% load and nominal input voltage.
    Voltage accuracy ±1.0%
    Ripple and noise 240 mVp-p; measured with 20 MHz bandwidth using a 12-inch twisted pair terminated with 0.1 µF and 47 µF capacitors.
    Line and load regulation Line: ±0.2%, low line to high line at rated load. Load: ±0.4%, measured from 0% to 100% rated load.
    Switching frequency 250 kHz typical.
    General measurement conditions Unless separately specified: normal input 110 V DC, rated load, ambient 25°C and 70% RH.

    Protection and control

    Short-circuit protection Continuous protection with automatic recovery.
    Overload protection 120–200% of rated output power; automatic recovery after the fault condition is removed.
    Overvoltage protection Latched shutdown. The specification prints a 110–150% entry with the wording “rated output power” in the overvoltage row; confirm the applicable voltage threshold with MEAN WELL before relying on it for protection coordination.
    Overtemperature protection Thermal shutdown at +115°C; automatic recovery after the fault condition is removed.
    Input undervoltage lockout Start-up: 59 V; shutdown: 54 V.
    Remote ON/OFF control Referenced to −Vin: ON with R.C. >3 V up to 12 V DC, or open circuit; OFF below 1.2 V DC, or short R.C. to −Vin.
    Remote sense Remote voltage sensing is provided through the positive and negative sense pins identified in the model pin table.
    Output trim range and connection ±10% typical. Connect the external trim-up resistor between Trim and −Vout; connect the trim-down resistor between Trim and +Vout. Observe output power, current and thermal limits after adjustment.
    Trim calculation coefficients For 24 V nominal output: Vref=2.5 V; R1=86 kΩ; R2=10 kΩ; R3=76.8 kΩ. V′ is the target output voltage.
    Trim resistor formulas Use consistent kΩ units. Up: A=Vref×R1/(V′−Vref); Rtrim_up=A×R2/(R2−A)−R3. Down: A=(V′−Vref)×R2/Vref; Rtrim_down=A×R1/(R1−A)−R3.

    Supply interruption and external energy storage

    Hold-up circuit Use the illustrated external R1, D1 and hold-up capacitor network for short supply interruptions. Select the capacitor network for input voltage and load; the listed hold-up times are circuit references, not bare-module guarantees. R1 is recommended as 25 Ω/10 W and must withstand the start-up pulse energy associated with the bus voltage and capacitance.
    Hold-up capacitor selection At nominal 96/110 V input respectively: 10 ms (S2), 680/470 µF; 20 ms (S3), 1200/820 µF; 30 ms (C2), 1800/1200 µF. The 110 V, 470 µF, 10 ms example is at full load. Follow the illustrated input hold-up network; this model has no Vbus pin.

    Thermal and environmental limits

    Operating and case temperature Working ambient: −40 to +90°C with derating; case temperature +115°C maximum. A graph extending beyond +90°C does not extend the stated working-temperature range.
    Cooling and thermal design Free-air/natural convection. Provide sufficient heat removal by conduction, convection and radiation for the actual installation; apply the model-specific derating curve and case-temperature limit.
    Model-specific airflow derating Use the separate RQB150W3-110S24 curve on PDF page 23, measured at 110 V DC. Four curves identify 20, 100, 300 and 500 LFM airflow. The allowable load varies with output model, airflow and ambient temperature; do not apply the series thermal example as a universal full-load boundary.
    Thermal calculation reference Pd=Pin−Po=Po×(1−η)/η; ΔT=Pd×Rca; Ta=Tc−ΔT. The catalogue example uses 12 V×12.5 A, η=0.87, Pd≈22.4 W and Rca=5.75°C/W, giving ΔT≈128.8°C. With an illustrative Tc=105°C it calculates Ta≈−23.8°C (about −25°C); it also describes about 50% load at 45°C. These are example assumptions, distinct from the +115°C case specification and the individual model/airflow curves.
    Thermal test PCB The illustrated thermal-test layout is 137×88×1.6 mm with 2 oz copper; a local copper-area reference is 58.5×37 mm. It describes the test layout and heat conduction through the module to the PCB, not an included circuit-board accessory.
    Working and storage humidity Working: 5–90% RH, non-condensing. Storage: −55 to +125°C and 10–95% RH, non-condensing.
    Temperature coefficient 0.05%/°C over 0 to +65°C.
    Soldering conditions Measure 1.5 mm from the case: 3–5 seconds at 260°C maximum.
    Operating altitude 4000 m.

    Isolation, railway standards and EMC

    Safety approvals LVD IEC62368-1 and EAC TP TC 020/2011 approved.
    Railway standards EN50155 with the specified external circuits, including EN61373 shock/vibration and EN50121-3-2 EMC.
    Isolation withstand voltage Input–output: 3 kV AC; input–case: 1.5 kV AC.
    Isolation resistance and capacitance Input–output resistance: 1000 MΩ at 500 V DC, 25°C, 70% RH non-condensing. Isolation capacitance: 3000 pF typical.
    EMC emissions Conducted and radiated BS EN/EN55032 Class A/B require the corresponding external components and circuit. The suggestion circuits are referenced to 110 V DC input and full load; verify the complete equipment.
    ESD and radiated immunity BS EN/EN61000-4-2 Level 3, ±6 kV contact; BS EN/EN61000-4-3 Level 3, 10 V/m.
    EFT and surge immunity BS EN/EN61000-4-4 and -4-5 Level 3, ±2 kV on the power input port, with external input capacitance required: 100 µF/220 V ×3.
    Conducted and magnetic immunity BS EN/EN61000-4-6 Level 3; the table prints 10 V/m (r.m.s.). Magnetic-field BS EN/EN61000-4-8: Level 4, 30 A/m.
    Class A external-component reference Table entries: C1/C4 220 µF; C2/C3/C5/C6 0.68 µF; L1 2.0 mH; CY1/CY2 1000 pF; grouped CY3/CY4/CY5/CY6 entry 1200 pF ×4; C7 4.7 µF ×6. Preserve the listed grouped counts when confirming the implemented circuit.
    Class A circuit connections L1 is a choke in both input rails. CY1 couples module +Vin to +Vout and CY2 couples −Vin to −Vout. CY3/CY4 couple input rails to shielding ground; CY5/CY6 couple output rails to shielding ground. The case joins this shielding-ground network; C7 is across the output.
    Class B external-component reference Table entries: C1/C2/C7 100 µF; C3/C4/C5/C6/C8/C9 0.68 µF; L1/L2 2.0 mH; L3/L4 4.7 µH; CY1 2200 pF; CY2 1000 pF; grouped CY3/CY4/CY5/CY6 entry 2200 pF ×6; CY7/CY8 N.A.; C10 4.7 µF ×6.
    Class B circuit connections L1/L2 are two input choke stages; L3/L4 are in the positive/negative input rails. CY1/CY2 couple the module input rails to their corresponding output rails; CY7/CY8 bridge the earlier input stage to the respective output rails. CY3/CY4 and CY5/CY6 connect input/output rails to shielding ground, with the case as drawn.
    EMC component-rating selection The external-circuit tables on PDF page 26 do not specify capacitor voltage ratings. Confirm suitable input, output and isolation voltage ratings and the grouped capacitor quantities before implementing either reference circuit.

    Mechanical integration and product information

    Construction and dimensions Fully encapsulated quarter-brick module with industry-standard pinout; aluminum baseplate and plastic case. 57.9×36.8×12.7 mm (2.28×1.45×0.5 inches).
    Pin assignment 1 +Vin; 2 Remote ON/OFF; 3 −Vin; 4 −Vout; 5 RS−; 6 Trim; 7 RS+; 8 +Vout. Use the drawing orientation when laying out and wiring the PCB.
    Pin and mounting geometry Pins 4 and 8: Ø1.5 mm; pins 1, 2, 3, 5, 6 and 7: Ø1.0 mm. Pin extension: 4.1 mm. Two M3 threaded through mounting inserts; bottom-view references are 50.8 mm between pin rows, 47.2×26.2 mm mounting-insert offsets, and output-row spans 15.24 mm with a 7.62 mm half-span.
    Mechanical tolerances Dimensions in mm: x.x ±0.5; x.xx ±0.25. The general pin-size note specifies 1.x ±0.1 mm.
    Recommended PCB footprint Top-view footprint: 58.4 mm minimum ×37.3 mm minimum, on a 2.54 mm grid. Mounting holes Ø3.5±0.12 mm; small-pin holes Ø1.4±0.18 mm; large-pin holes Ø1.9±0.12 mm. Follow the individual hole positions in the model mechanical drawing.
    Unit mass reference 70 g per unit, catalogue PACKING reference; not a measured net or shipment weight.
    Packing reference 11 units per tube, tube gross weight 900 g; 132 units in 12 tubes per carton, carton gross weight 11.14 kg. Tube length 520 mm and illustrated cross-section 60.9×26.9 mm; carton L545×W145×H220 mm.
    Reliability and warranty 200 Khrs MTBF to MIL-HDBK-217F at 25°C; 3-year manufacturer warranty.
    Typical applications Bus, tram, metro and railway systems; telecom/datacom, wireless networks, industrial control, instruments and analyzers. The fully encapsulated design addresses vibration, dust and temperature exposure within the specified installation and operating limits.

    Installation and system verification

    Complete-system EMC verification Verify EMC with the converter installed in the final equipment and connected to a representative load. Wiring, assembly and the application affect the result. Follow the model's specified EMC conditions and any required external components; the linked EMI testing guidance does not certify the finished equipment.

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