Unregulated DC/DC Converters

There are many applications where the supply voltage is fixed and the load relatively constant. For such applications, an unregulated DC/DC converter is often an ideal solution; it still offers voltage conversion, galvanic isolation, and short-circuit protection (in /P versions) but is significantly cheaper than a regulated DC/DC converter. Additionally, unregulated converters do not contain opto-couplers which can present reliability concerns due to aging effects in high-speed switching circuits. For this reason, unregulated isolated DC/DC converters are recommended for IGBT, SiC, or GaN power transistor gate driver circuits.

RECOM offers a wide range of SMD and through-hole mounting unregulated converters in many different industry-standard form-factors such as SMD, SIP4 or SIP7 to offer a pin-compatible solution for many existing designs as well as second-source opportunities for new designs. Despite their cost-effectiveness, these are fully certified, 100% tested products with a standard 3-year warranty.
Power (W)
  • Min
  • Nom
  • Max
    • Vin (V)
  • Min
  • Nom
  • Max
    • Main Vout (V)
  • Min
  • Nom
  • Max
    • Nr. of Outputs
    Iout 1 (mA)
  • Min
  • Nom
  • Max
    • Iout 2 (mA)
  • Min
  • Nom
  • Max
    • Isolation (kV)
  • Min
  • Nom
  • Max
    • Mounting Type
    Package Style
    Length (mm)
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    • Width (mm)
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    • Height (mm)
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    • Certifications
    MIN Operating Temp (°C)
  • Max
    • MAX Operating Temp (°C)
  • Min
    • Protections
      Series Power (W) Vin (V) Main Vout (V) Isolation (kV) Mounting Type Package Style
    1 DC/DC, 1 W, Dual Output, SMD R1DX Series
    Focus
    		1 5 ± 12, ± 15, ± 5, ± 9 1, 3 SMD Open Frame
    2 DC/DC, 1 W, Single Output, SMD R1S Series
    Focus
    		1 3.3, 5, 12, 15, 24 12, 15, 24, 3.3, 5, 9 1, 3 SMD SMD 5 Pin, SMD 8 Pin, SMD 12 Pin
    3 DC/DC, 1 W, Single Output, SMD R1SE Series
    Focus
    		1 5 5 1 SMD SMD 5 Pin, SMD 8 Pin
    4 DC/DC, 1 W, Single Output, SMD R1SE/H2 Series
    Focus
    		1 3.3, 5, 12, 15 12, 15, 5 2 SMD SMD 5 Pin
    5 DC/DC, 1 W, Single Output, SMD R1SX Series
    Focus
    		1 3.3, 5, 12 3.3, 5 1, 3 SMD Open Frame
    6 DC/DC, 1 W, THT RB Series
    Focus
    		1 3.3, 5, 12, 15, 24 12, 15, 24, 3.3, 5, 9, ± 12, ± 15, ± 24, ± 3.3, ± 5, ± 9 1, 2 THT SIP7
    7 DC/DC, 1 W, Single Output, THT RBE Series
    Focus
    		1 5 5 1 THT SIP7
    8 DC/DC, 1 W, Single Output, THT REE Series
    Focus
    		1 5 5 1 THT SIP7
    9 DC/DC, 1 W, Single Output, THT REM1 Series
    Focus
    		1 3.3, 5, 12, 15, 24 12, 3.3, 5 5.2 THT SIP7
    10 DC/DC, 1 W, Single Output, THT RFB Series
    Focus
    		1 5 5 1 THT SIP7
    11 DC/DC, 1 W, Single Output, THT RFM Series
    Focus
    		1 5 5 1 THT SIP4
    12 DC/DC, 1 W, Single Output, THT RFMM Series
    Focus
    		1 5 5 4 THT SIP7
    13 DC/DC, 1 W, Single Output, THT RK Series
    Focus
    		1 5, 12, 15, 24 12, 15, 5, 9 3, 4 THT SIP7
    14 DC/DC, 1 W, Single Output, THT RKE Series
    Focus
    		1 5, 12, 24 5 4 THT SIP7
    15 DC/DC, 1 W, Single Output, THT RKK Series
    Focus
    		1 5 5 4 THT SIP7
    16 DC/DC, 1 W, Single Output, THT ROE Series
    Focus
    		1 3.3, 5, 12, 15, 24 12, 15, 5 1 THT SIP4
    17 DC/DC, 1 W, THT RP Series
    Focus
    		1 5, 9, 12, 15, 24 12, 15, 24, 3.3, 5, 9, ± 12, ± 15, ± 24, ± 3.3, ± 5, ± 9 5.2 THT SIP7
    18 DC/DC, 1 W, THT RxxPxx/R Series
    Focus
    		1 5, 9, 12, 15, 24 12, 15, 3.3, 5, 9, ± 12, ± 15, ± 3.3, ± 5, ± 9 6.4, 8 THT SIP7
    19 DC/DC, 2 W, Single Output, SMD R2SX Series
    Focus
    		2 5, 12, 24 15, 24, 3.3, 5 1, 3 SMD Open Frame
    20 DC/DC, 2 W, THT RKZE Series
    Focus
    		2 5, 12, 15, 24 12, 15, 5, 9, ± 12, ± 15, ± 5 3, 4 THT SIP7
    21 DC/DC, 3 W, SMD (pinless) RA3 Series
    Focus
    		3 5, 12, 24 15 / -3, 15 / -5, 20 / -5, 7 / -1, 8, 9 5.2 SMD (pinless) DIP16
    22 DC/DC, 0.25 W, Dual Output, SMD R0.25D Series
    		0.25 3.3, 5, 12, 15, 24 ± 12, ± 15, ± 24, ± 3.3, ± 5, ± 9 1, 3 SMD SMD 6 Pin, SMD 10 Pin, SMD 12 Pin
    23 DC/DC, 0.25 W, Dual Output, SMD R0.25DA Series
    		0.25 3.3, 5, 12, 15, 24 12 / 12, 5 / 5 1 SMD SMD 7 Pin
    24 DC/DC, 0.25 W, Single Output, SMD R0.25S Series
    		0.25 3.3, 5, 12, 15, 24 12, 15, 24, 3.3, 5, 9 1, 3 SMD SMD 5 Pin, SMD 8 Pin, SMD 12 Pin
    25 DC/DC, 0.25 W, Single Output, SMD R0.25S/E Series
    		0.25 3.3, 5, 12 3.3, 5 1, 2 SMD SMD 5 Pin, SMD 8 Pin
    26 DC/DC, 0.25 W, Single Output, THT RM Series
    		0.25 3.3, 5, 12, 15, 24 12, 15, 3.3, 5, 9 1, 2 THT SIP4
    27 DC/DC, 0.5 W, Dual Output, SMD R0.5D Series
    		0.5 3.3, 5, 12, 24 ± 12, ± 15, ± 5 1, 3 SMD SMD 6 Pin, SMD 10 Pin, SMD 12 Pin
    28 DC/DC, 0.5 W, Single Output, SMD R0.5S Series
    		0.5 3.3, 5, 12, 24 12, 15, 5 1, 3 SMD SMD 5 Pin, SMD 8 Pin, SMD 12 Pin
    29 DC/DC, 0.5 W, Single Output, THT ROL Series
    		0.5 5, 12 12, 15, 5 1, 2 THT SIP4
    30 DC/DC, 1 W, Dual Output, SMD R1D Series
    		1 3.3, 5, 12, 15, 24 ± 12, ± 15, ± 24, ± 3.3, ± 5, ± 9 1, 3 SMD SMD 6 Pin, SMD 10 Pin, SMD 12 Pin
    31 DC/DC, 1 W, Dual Output, SMD R1DA Series
    		1 3.3, 5, 9, 12, 15, 24 12 / 12, 15 / 15, 3.3 / 3.3, 5 / 5, 9 / 9 1 SMD SMD 7 Pin
    32 DC/DC, 1 W, Single Output, SMD R1S/E Series
    		1 3.3, 5, 12, 24 5 1, 2 SMD SMD 5 Pin, SMD 8 Pin
    33 DC/DC, 1 W, Single Output, THT RB/E Series
    		1 3.3, 5, 12, 24 5 1, 2 THT SIP7
    34 DC/DC, 1 W, THT RBM Series
    		1 5, 12 12, 15, 5, ± 12, ± 15, ± 5 3 THT SIP6 Micro
    35 DC/DC, 1 W, Single Output, THT RE Series
    		1 3.3, 5, 12, 15, 24 12, 15, 24, 3.3, 5, 9 1, 2 THT SIP7
    36 DC/DC, 1 W, Dual Output, THT RH Series
    		1 5, 12, 15, 24 ± 12, ± 15, ± 5, ± 9 3, 4 THT SIP7
    37 DC/DC, 1 W, Dual Output, THT RH/H6 Series
    		1 5, 12, 15, 24 ± 12, ± 15, ± 3.3, ± 5 6.4 THT SIP7
    38 DC/DC, 1 W, Single Output, THT RK/H6 Series
    		1 5, 12, 15, 24 12, 15, 3.3, 5 6.4 THT SIP7
    39 DC/DC, 1 W, Single Output, THT RNM Series
    		1 3.3, 5, 12, 15 12, 15, 3.3, 5, 9 1, 2 THT DIP6
    40 DC/DC, 1 W, Single Output, THT RO Series
    		1 3.3, 5, 12, 15, 24 12, 15, 24, 3.3, 5, 9 1, 2 THT SIP4
    41 DC/DC, 1 W, Single Output, THT RO/E Series
    		1 3.3, 5, 12, 24 5 1, 2 THT SIP4
    42 DC/DC, 1 W, Single Output, THT ROM Series
    		1 3.3, 5, 12 12, 15, 5 3 THT SIP4 Micro
    43 DC/DC, 1 W, Single Output, THT RP-xx06 Series
    		1 5, 12, 15, 24 6 5.2 THT SIP7
    44 DC/DC, 1 W, Single Output, THT RU Series
    		1 3.3, 5 5 / 5 1, 2 THT SIP7
    45 DC/DC, 1 W, Single Output, THT RUM Series
    		1 3.3, 5 5 / 5 1, 2 THT SIP6
    46 DC/DC, 1 W, Single Output, THT RxxP06 Series
    		1 5, 12, 15, 24 6 6.4 THT SIP7
    47 DC/DC, 1 W, THT RxxPxx Series
    		1 5, 9, 12, 15, 24 12, 15, 3.3, 5, 9, ± 12, ± 15, ± 3.3, ± 5, ± 9 6.4 THT SIP7
    48 DC/DC, 1.25 W, Single Output, THT RN Series
    		1.25 3.3, 5, 9, 12, 15, 24 12, 15, 24, 3.3, 5, 7, 9 1, 2 THT DIP8
    49 DC/DC, 2 W, Dual Output, SMD R2D Series
    		2 5, 12, 15, 24 ± 12, ± 15, ± 24, ± 5, ± 9 1, 3 SMD SMD 6 Pin, SMD 10 Pin, SMD 12 Pin
    50 DC/DC, 2 W, Single Output, SMD R2S Series
    		2 5, 12, 15, 24 12, 15, 24, 3.3, 5, 9 1, 3 SMD SMD 5 Pin, SMD 8 Pin, SMD 12 Pin
    51 DC/DC, 2 W, Dual Output, THT RD Series
    		2 5, 12, 24 ± 12, ± 15, ± 24, ± 5 1, 2 THT SIP7
    52 DC/DC, 2 W, THT REM2 Series
    		2 3.3, 5, 12, 15, 24 12, 3.3, 5, 9, ± 12, ± 3.3, ± 5 5.2 THT SIP8
    53 DC/DC, 2 W, Dual Output, THT RGZ Series
    		2 3.3, 5, 9, 12, 15, 24 ± 12, ± 15, ± 24, ± 3.3, ± 5, ± 9 3, 4 THT DIP14
    54 DC/DC, 2 W, Single Output, THT RI Series
    		2 5, 12, 15, 24 12, 15, 5 1 THT SIP4
    55 DC/DC, 2 W, Single Output, THT RJZ Series
    		2 3.3, 5, 9, 12, 15, 24 12, 15, 24, 3.3, 5, 9 3, 4 THT DIP14
    56 DC/DC, 2 W, THT RKZ Series
    		2 5, 12, 24 12, 15, 5, ± 12, ± 15, ± 5 3, 4 THT SIP7
    57 DC/DC, 2 W, Dual Output, THT RKZ-xx2005 Series
    		2 5, 12, 15, 24 20 / -5 3, 4 THT SIP7
    58 DC/DC, 2 W, Dual Output, THT RUZ Series
    		2 5 5 / 5 1, 2 THT SIP7
    59 DC/DC, 2 W, THT RV Series
    		2 3.3, 5, 9, 12, 15, 24 12, 15, 24, 3.3, 5, 9, ± 12, ± 15, ± 24, ± 3.3, ± 5, ± 9 6 THT DIP24 Mini
    60 DC/DC, 2 W, THT RV/R Series
    		2 3.3, 5, 12, 15, 24 12, 15, 3.3, 5, 9, ± 12, ± 15, ± 3.3, ± 5, ± 9 6.4, 8 THT DIP24 Mini
    61 DC/DC, 2 W, Dual Output, THT RxxP21503 Series
    		2 12, 15, 24 15 / -3 6.4 THT SIP7
    62 DC/DC, 2 W, Dual Output, THT RxxP21509 Series
    		2 5, 12, 24 15 / -9 6.4 THT SIP7
    63 DC/DC, 2 W, Dual Output, THT RxxP22005 Series
    		2 5, 12, 15, 24 20 / -5 6.4 THT SIP7
    64 DC/DC, 2 W, THT RxxP2xx Series
    		2 5, 12, 15, 24 12, 15, 3.3, 5, 9, ± 12, ± 15, ± 3.3, ± 5, ± 9 6.4 THT SIP7
    65 DC/DC, 2 W, THT RxxP2xx/R Series
    		2 5, 12, 15, 24 12, 15, 3.3, 5, 9, ± 12, ± 15, ± 3.3, ± 5, ± 9 6.4, 8 THT SIP7
    66 DC/DC, 3 W, Single Output, THT RI3 Series
    		3 5, 12, 15, 24 12, 15, 5, 9 1, 2, 3 THT SIP4
    67 DC/DC, 3 W, Single Output, THT RKZ3 Series
    		3 5, 12, 24 12, 5 3, 4 THT SIP7
    68 DC/DC, 1 W, Single Output, SMD RAM Series
    NRND
    		1 5, 12, 24 5 3, 4 SMD SMD
    69 DC/DC, 2 W, Single Output, SMD RTM Series
    NRND
    		2 5, 12, 24 5 2, 3 SMD SMD

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