RCD-24 Series

  • UL/ RAILWAYS Certified Constant Current LED Driver
  • Wide Input and Output Voltage Range
  • Digital PWM and Analogue Voltage Dimming
  • Short Circuit Protected
  • Pinned or Wired Versions
  • IP67 rated for /W Version
  • 96% Efficiency
  • 5 year Warranty

The RCD series is a step-down constant current source designed for driving high power white LEDs. Standard output currents available are 300mA, 350mA, 500mA, 600mA, 700mA, 1000mA and 1200mA to make this driver compatible with a wide range of LEDs applications. Despite its compact size, the RCD series is fully featured with very high efficiency, wide input voltage range, high ambient operating temperature and two means of dimming: PWM/digital control and analogue voltage dimming. Both dimming controls are independent and can be combined. The driver is also designed to be as reliable as the LEDs it is driving, even at the full operating temperature. Options include an IP67-rated wired version (/W) and a version with built-in reference output voltage (/Vref) to power sensors or for easy analogue dimming.

Power (W)
  • Min
  • Nom
  • Max
    • Vin (V)
  • Min
  • Nom
  • Max
    • Main Vout (V)
  • Min
  • Nom
  • Max
    • Mounting Type
    Package Style
    MAX Operating Temp (°C)
  • Min
    • Current (A)
      Part Number Vin (V) Main Vout (V) Package Style Current (A)
    1 DC/DC, 10.5 W, Single Output, THT RCD-24-0.30
    Focus
    		4.5 - 36.0 2 to 35 DIP 0.3
    2 DC/DC, 10.5 W, Single Output, THT RCD-24-0.30/Vref
    Focus
    		4.5 - 36.0 2 to 35 DIP 0.3
    3 DC/DC, 10.5 W, Single Output, Wired RCD-24-0.30/W
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.3
    4 DC/DC, 10.5 W, Single Output, Wired RCD-24-0.30/W/Vref
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.3
    5 DC/DC, 10.5 W, Single Output, Wired RCD-24-0.30/W/X1
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.3
    6 DC/DC, 10.5 W, Single Output, Wired RCD-24-0.30/W/X2
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.3
    7 DC/DC, 10.5 W, Single Output, Wired RCD-24-0.30/W/X3
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.3
    8 DC/DC, 12.25 W, Single Output, THT RCD-24-0.35
    Focus
    		4.5 - 36.0 2 to 35 DIP 0.35
    9 DC/DC, 12.25 W, Single Output, THT RCD-24-0.35/Vref
    Focus
    		4.5 - 36.0 2 to 35 DIP 0.35
    10 DC/DC, 12.25 W, Single Output, Wired RCD-24-0.35/W
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.35
    11 DC/DC, 12.25 W, Single Output, Wired RCD-24-0.35/W/Vref
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.35
    12 DC/DC, 12.25 W, Single Output, Wired RCD-24-0.35/W/X1
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.35
    13 DC/DC, 12.25 W, Single Output, Wired RCD-24-0.35/W/X2
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.35
    14 DC/DC, 12.25 W, Single Output, Wired RCD-24-0.35/W/X3
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.35
    15 DC/DC, 17.5 W, Single Output, THT RCD-24-0.50
    Focus
    		4.5 - 36.0 2 to 35 DIP 0.5
    16 DC/DC, 17.5 W, Single Output, THT RCD-24-0.50/Vref
    Focus
    		4.5 - 36.0 2 to 35 DIP 0.5
    17 DC/DC, 17.5 W, Single Output, Wired RCD-24-0.50/W
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.5
    18 DC/DC, 17.5 W, Single Output, Wired RCD-24-0.50/W/Vref
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.5
    19 DC/DC, 17.5 W, Single Output, Wired RCD-24-0.50/W/X1
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.5
    20 DC/DC, 17.5 W, Single Output, Wired RCD-24-0.50/W/X2
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.5
    21 DC/DC, 17.5 W, Single Output, Wired RCD-24-0.50/W/X3
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.5
    22 DC/DC, 21.0 W, Single Output, THT RCD-24-0.60
    Focus
    		4.5 - 36.0 2 to 35 DIP 0.6
    23 DC/DC, 21.0 W, Single Output, THT RCD-24-0.60/Vref
    Focus
    		4.5 - 36.0 2 to 35 DIP 0.6
    24 DC/DC, 21.0 W, Single Output, Wired RCD-24-0.60/W
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.6
    25 DC/DC, 21.0 W, Single Output, Wired RCD-24-0.60/W/Vref
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.6
    26 DC/DC, 21.0 W, Single Output, Wired RCD-24-0.60/W/X1
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.6
    27 DC/DC, 21.0 W, Single Output, Wired RCD-24-0.60/W/X2
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.6
    28 DC/DC, 21.0 W, Single Output, Wired RCD-24-0.60/W/X3
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.6
    29 DC/DC, 24.5 W, Single Output, THT RCD-24-0.70
    Focus
    		4.5 - 36.0 2 to 35 DIP 0.7
    30 DC/DC, 24.5 W, Single Output, THT RCD-24-0.70/Vref
    Focus
    		4.5 - 36.0 2 to 35 DIP 0.7
    31 DC/DC, 24.5 W, Single Output, Wired RCD-24-0.70/W
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.7
    32 DC/DC, 24.5 W, Single Output, Wired RCD-24-0.70/W/Vref
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.7
    33 DC/DC, 24.5 W, Single Output, Wired RCD-24-0.70/W/X1
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.7
    34 DC/DC, 24.5 W, Single Output, Wired RCD-24-0.70/W/X2
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.7
    35 DC/DC, 24.5 W, Single Output, Wired RCD-24-0.70/W/X3
    Focus
    		4.5 - 36.0 2 to 35 Standard 0.7
    36 DC/DC, 31.0 W, Single Output, THT RCD-24-1.00
    Focus
    		6.0 - 36.0 3 to 31 DIP 1.0
    37 DC/DC, 31.0 W, Single Output, Wired RCD-24-1.00/W
    Focus
    		6.0 - 36.0 3 to 31 Standard 1.0
    38 DC/DC, 31.0 W, Single Output, Wired RCD-24-1.00/W/X1
    Focus
    		6.0 - 36.0 3 to 31 Standard 1.0
    39 DC/DC, 31.0 W, Single Output, Wired RCD-24-1.00/W/X2
    Focus
    		6.0 - 36.0 3 to 31 Standard 1.0
    40 DC/DC, 31.0 W, Single Output, Wired RCD-24-1.00/W/X3
    Focus
    		6.0 - 36.0 3 to 31 Standard 1.0
    41 DC/DC, 37.2 W, Single Output, THT RCD-24-1.20
    Focus
    		6.0 - 36.0 3 to 31 DIP 1.2
    42 DC/DC, 37.2 W, Single Output, Wired RCD-24-1.20/W
    Focus
    		6.0 - 36.0 3 to 31 Standard 1.2
    43 DC/DC, 37.2 W, Single Output, Wired RCD-24-1.20/W/X1
    Focus
    		6.0 - 36.0 3 to 31 Standard 1.2
    44 DC/DC, 37.2 W, Single Output, Wired RCD-24-1.20/W/X2
    Focus
    		6.0 - 36.0 3 to 31 Standard 1.2
    45 DC/DC, 37.2 W, Single Output, Wired RCD-24-1.20/W/X3
    Focus
    		6.0 - 36.0 3 to 31 Standard 1.2
    Attributes RCD-24
    AC/DC or DC/DC DC/DC
    Nr. of Outputs Single
    Length (mm) 22.1
    Width (mm) 12.6
    Height (mm) 8.5
    Certifications EN 60950-1, IEC 60950-1, UL 60950-1
    MIN Operating Temp (°C) -40.0
    Protections SCP
    Directives RoHS 2 (6/6)
    Operating Modes CC, Dimming
    Regulation Regulated
      Part Number Power (W) Vout 1 (V) Vin (V) Mounting Type
    1 DC/DC, 10.5 W, Single Output, THT RCD-24-0.30
    Focus
    		10.5 4.5 - 36.0 THT
    2 DC/DC, 10.5 W, Single Output, THT RCD-24-0.30/Vref
    Focus
    		10.5 4.5 - 36.0 THT
    3 DC/DC, 10.5 W, Single Output, Wired RCD-24-0.30/W
    Focus
    		10.5 4.5 - 36.0 Wired
    4 DC/DC, 10.5 W, Single Output, Wired RCD-24-0.30/W/Vref
    Focus
    		10.5 4.5 - 36.0 Wired
    5 DC/DC, 10.5 W, Single Output, Wired RCD-24-0.30/W/X1
    Focus
    		10.5 4.5 - 36.0 Wired
    6 DC/DC, 10.5 W, Single Output, Wired RCD-24-0.30/W/X2
    Focus
    		10.5 4.5 - 36.0 Wired
    7 DC/DC, 10.5 W, Single Output, Wired RCD-24-0.30/W/X3
    Focus
    		10.5 4.5 - 36.0 Wired
    8 DC/DC, 12.25 W, Single Output, THT RCD-24-0.35
    Focus
    		12.25 4.5 - 36.0 THT
    9 DC/DC, 12.25 W, Single Output, THT RCD-24-0.35/Vref
    Focus
    		12.25 4.5 - 36.0 THT
    10 DC/DC, 12.25 W, Single Output, Wired RCD-24-0.35/W
    Focus
    		12.25 4.5 - 36.0 Wired
    11 DC/DC, 12.25 W, Single Output, Wired RCD-24-0.35/W/Vref
    Focus
    		12.25 4.5 - 36.0 Wired
    12 DC/DC, 12.25 W, Single Output, Wired RCD-24-0.35/W/X1
    Focus
    		12.25 4.5 - 36.0 Wired
    13 DC/DC, 12.25 W, Single Output, Wired RCD-24-0.35/W/X2
    Focus
    		12.25 4.5 - 36.0 Wired
    14 DC/DC, 12.25 W, Single Output, Wired RCD-24-0.35/W/X3
    Focus
    		12.25 4.5 - 36.0 Wired
    15 DC/DC, 17.5 W, Single Output, THT RCD-24-0.50
    Focus
    		17.5 4.5 - 36.0 THT
    16 DC/DC, 17.5 W, Single Output, THT RCD-24-0.50/Vref
    Focus
    		17.5 4.5 - 36.0 THT
    17 DC/DC, 17.5 W, Single Output, Wired RCD-24-0.50/W
    Focus
    		17.5 4.5 - 36.0 Wired
    18 DC/DC, 17.5 W, Single Output, Wired RCD-24-0.50/W/Vref
    Focus
    		17.5 4.5 - 36.0 Wired
    19 DC/DC, 17.5 W, Single Output, Wired RCD-24-0.50/W/X1
    Focus
    		17.5 4.5 - 36.0 Wired
    20 DC/DC, 17.5 W, Single Output, Wired RCD-24-0.50/W/X2
    Focus
    		17.5 4.5 - 36.0 Wired
    21 DC/DC, 17.5 W, Single Output, Wired RCD-24-0.50/W/X3
    Focus
    		17.5 4.5 - 36.0 Wired
    22 DC/DC, 21.0 W, Single Output, THT RCD-24-0.60
    Focus
    		21.0 4.5 - 36.0 THT
    23 DC/DC, 21.0 W, Single Output, THT RCD-24-0.60/Vref
    Focus
    		21.0 4.5 - 36.0 THT
    24 DC/DC, 21.0 W, Single Output, Wired RCD-24-0.60/W
    Focus
    		21.0 4.5 - 36.0 Wired
    25 DC/DC, 21.0 W, Single Output, Wired RCD-24-0.60/W/Vref
    Focus
    		21.0 4.5 - 36.0 Wired
    26 DC/DC, 21.0 W, Single Output, Wired RCD-24-0.60/W/X1
    Focus
    		21.0 4.5 - 36.0 Wired
    27 DC/DC, 21.0 W, Single Output, Wired RCD-24-0.60/W/X2
    Focus
    		21.0 4.5 - 36.0 Wired
    28 DC/DC, 21.0 W, Single Output, Wired RCD-24-0.60/W/X3
    Focus
    		21.0 4.5 - 36.0 Wired
    29 DC/DC, 24.5 W, Single Output, THT RCD-24-0.70
    Focus
    		24.5 4.5 - 36.0 THT
    30 DC/DC, 24.5 W, Single Output, THT RCD-24-0.70/Vref
    Focus
    		24.5 4.5 - 36.0 THT
    31 DC/DC, 24.5 W, Single Output, Wired RCD-24-0.70/W
    Focus
    		24.5 4.5 - 36.0 Wired
    32 DC/DC, 24.5 W, Single Output, Wired RCD-24-0.70/W/Vref
    Focus
    		24.5 4.5 - 36.0 Wired
    33 DC/DC, 24.5 W, Single Output, Wired RCD-24-0.70/W/X1
    Focus
    		24.5 4.5 - 36.0 Wired
    34 DC/DC, 24.5 W, Single Output, Wired RCD-24-0.70/W/X2
    Focus
    		24.5 4.5 - 36.0 Wired
    35 DC/DC, 24.5 W, Single Output, Wired RCD-24-0.70/W/X3
    Focus
    		24.5 4.5 - 36.0 Wired
    36 DC/DC, 31.0 W, Single Output, THT RCD-24-1.00
    Focus
    		31.0 6.0 - 36.0 THT
    37 DC/DC, 31.0 W, Single Output, Wired RCD-24-1.00/W
    Focus
    		31.0 6.0 - 36.0 Wired
    38 DC/DC, 31.0 W, Single Output, Wired RCD-24-1.00/W/X1
    Focus
    		31.0 6.0 - 36.0 Wired
    39 DC/DC, 31.0 W, Single Output, Wired RCD-24-1.00/W/X2
    Focus
    		31.0 6.0 - 36.0 Wired
    40 DC/DC, 31.0 W, Single Output, Wired RCD-24-1.00/W/X3
    Focus
    		31.0 6.0 - 36.0 Wired
    41 DC/DC, 37.2 W, Single Output, THT RCD-24-1.20
    Focus
    		37.2 6.0 - 36.0 THT
    42 DC/DC, 37.2 W, Single Output, Wired RCD-24-1.20/W
    Focus
    		37.2 6.0 - 36.0 Wired
    43 DC/DC, 37.2 W, Single Output, Wired RCD-24-1.20/W/X1
    Focus
    		37.2 6.0 - 36.0 Wired
    44 DC/DC, 37.2 W, Single Output, Wired RCD-24-1.20/W/X2
    Focus
    		37.2 6.0 - 36.0 Wired
    45 DC/DC, 37.2 W, Single Output, Wired RCD-24-1.20/W/X3
    Focus
    		37.2 6.0 - 36.0 Wired

    Documents & Media

    Title Type Date
    recom-certificate-rohs-2.1.pdf PDF
    RCD-24.pdf Datasheet
    The PWM-control pin can be used as remote control pin as well. It means you can switch the unit on/off via this pin. Switching level is TTL compatible and has hysteresis to allow slow switching waveforms.
    The analog voltage is used to control an internal PWM circuit.
    The RCD-24 series is step-down (buck) converter. You always need a higher input voltage than the output voltage required. A high power LED usually has a forward voltage drop of around 3.4V, so only three LEDs can be drivenin series from a 12V source. If the input voltage is increased to 24V, seven LEDs can be in the chain and if the input voltage is 36V, then ten LEDs can be driven.
    However, it is possible to connect chains of LEDs in parallel, so a RCD-24-7.0 can drive two chains of three 350mA LEDs connected in parallel.
    Remember that this part is a constant current converter, so the output voltage is variable depending on the power needed, but it will always be lower than the input voltage.
    The RCD series is a All-in-One solution in a small package with high efficiency, wide input range, two different ways of dimming Analog and Digital (PWM), high operating temperature range, and it’s fully tested. You don’t have to worry about all different suppliers of all the components of your discrete solution.
    The linearity outside the 10~90% range of the PWM dimming is not perfect, but still pretty good. The Analog dimming can be used in a 0~100% range.
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