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)
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  • Nom
  • Max
    • Main Vout (V)
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  • Nom
  • Max
    • Nr. of Outputs
    Iout 1 (mA)
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  • 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 RECOM | R1DX Series | DC/DC, SMD, 1 W, Dual Output
    Focus
    		1 5 ± 12, ± 15, ± 5, ± 9 1, 3 SMD Open Frame
    2 RECOM | R1S Series | DC/DC, SMD, 1 W, Single Output
    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 RECOM | R1SE Series | DC/DC, SMD, 1 W, Single Output
    Focus
    		1 5 5 1 SMD SMD 5 Pin, SMD 8 Pin
    4 RECOM | R1SE/H2 Series | DC/DC, SMD, 1 W, Single Output
    Focus
    		1 3.3, 5, 12, 15 12, 15, 5 2 SMD SMD 5 Pin
    5 RECOM | R1SX Series | DC/DC, SMD, 1 W, Single Output
    Focus
    		1 3.3, 5, 12 3.3, 5 1, 3 SMD Open Frame
    6 RECOM | RB Series | DC/DC, THT, 1 W
    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 RECOM | RBE Series | DC/DC, THT, 1 W, Single Output
    Focus
    		1 5 5 1 THT SIP7
    8 RECOM | REE Series | DC/DC, THT, 1 W, Single Output
    Focus
    		1 5 5 1 THT SIP7
    9 RECOM | REM1 Series | DC/DC, THT, 1 W, Single Output
    Focus
    		1 3.3, 5, 12, 15, 24 12, 3.3, 5 5.2 THT SIP7
    10 RECOM | RFB Series | DC/DC, THT, 1 W, Single Output
    Focus
    		1 5 5 1 THT SIP7
    11 RECOM | RFM Series | DC/DC, THT, 1 W, Single Output
    Focus
    		1 5 5 1 THT SIP4
    12 RECOM | RFMM Series | DC/DC, THT, 1 W, Single Output
    Focus
    		1 5 5 4 THT SIP7
    13 RECOM | RK Series | DC/DC, THT, 1 W, Single Output
    Focus
    		1 5, 12, 15, 24 12, 15, 5, 9 3, 4 THT SIP7
    14 RECOM | RKE Series | DC/DC, THT, 1 W, Single Output
    Focus
    		1 5, 12, 24 5 4 THT SIP7
    15 RECOM | RKK Series | DC/DC, THT, 1 W, Single Output
    Focus
    		1 5 5 4 THT SIP7
    16 RECOM | ROE Series | DC/DC, THT, 1 W, Single Output
    Focus
    		1 3.3, 5, 12, 15, 24 12, 15, 5 1 THT SIP4
    17 RECOM | RP Series | DC/DC, THT, 1 W
    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 RECOM | RxxPxx/R Series | DC/DC, THT, 1 W
    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 RECOM | R2SX Series | DC/DC, SMD, 2 W, Single Output
    Focus
    		2 5, 12, 24 15, 24, 3.3, 5 1, 3 SMD Open Frame
    20 RECOM | RKZE Series | DC/DC, THT, 2 W
    Focus
    		2 5, 12, 15, 24 12, 15, 5, 9, ± 12, ± 15, ± 5 3, 4 THT SIP7
    21 RECOM | RA3 Series | DC/DC, SMD (pinless), 3 W
    Focus
    		3 5, 12, 24 15 / -3, 15 / -5, 20 / -5, 7 / -1, 8, 9 5.2 SMD (pinless) DIP16
    22 RECOM | R0.25D Series | DC/DC, SMD, 0.25 W, Dual Output
    		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 RECOM | R0.25DA Series | DC/DC, SMD, 0.25 W, Dual Output
    		0.25 3.3, 5, 12, 15, 24 12 / 12, 5 / 5 1 SMD SMD 7 Pin
    24 RECOM | R0.25S Series | DC/DC, SMD, 0.25 W, Single Output
    		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 RECOM | R0.25S/E Series | DC/DC, SMD, 0.25 W, Single Output
    		0.25 3.3, 5, 12 3.3, 5 1, 2 SMD SMD 5 Pin, SMD 8 Pin
    26 RECOM | RM Series | DC/DC, THT, 0.25 W, Single Output
    		0.25 3.3, 5, 12, 15, 24 12, 15, 3.3, 5, 9 1, 2 THT SIP4
    27 RECOM | R0.5D Series | DC/DC, SMD, 0.5 W, Dual Output
    		0.5 3.3, 5, 12, 24 ± 12, ± 15, ± 5 1, 3 SMD SMD 6 Pin, SMD 10 Pin, SMD 12 Pin
    28 RECOM | R0.5S Series | DC/DC, SMD, 0.5 W, Single Output
    		0.5 3.3, 5, 12, 24 12, 15, 5 1, 3 SMD SMD 5 Pin, SMD 8 Pin, SMD 12 Pin
    29 RECOM | ROL Series | DC/DC, THT, 0.5 W, Single Output
    		0.5 5, 12 12, 15, 5 1, 2 THT SIP4
    30 RECOM | R1D Series | DC/DC, SMD, 1 W, Dual Output
    		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 RECOM | R1DA Series | DC/DC, SMD, 1 W, Dual Output
    		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 RECOM | R1S/E Series | DC/DC, SMD, 1 W, Single Output
    		1 3.3, 5, 12, 24 5 1, 2 SMD SMD 5 Pin, SMD 8 Pin
    33 RECOM | RB/E Series | DC/DC, THT, 1 W, Single Output
    		1 3.3, 5, 12, 24 5 1, 2 THT SIP7
    34 RECOM | RBM Series | DC/DC, THT, 1 W
    		1 5, 12 12, 15, 5, ± 12, ± 15, ± 5 3 THT SIP6 Micro
    35 RECOM | RE Series | DC/DC, THT, 1 W, Single Output
    		1 3.3, 5, 12, 15, 24 12, 15, 24, 3.3, 5, 9 1, 2 THT SIP7
    36 RECOM | RH Series | DC/DC, THT, 1 W, Dual Output
    		1 5, 12, 15, 24 ± 12, ± 15, ± 5, ± 9 3, 4 THT SIP7
    37 RECOM | RH/H6 Series | DC/DC, THT, 1 W, Dual Output
    		1 5, 12, 15, 24 ± 12, ± 15, ± 3.3, ± 5 6.4 THT SIP7
    38 RECOM | RK/H6 Series | DC/DC, THT, 1 W, Single Output
    		1 5, 12, 15, 24 12, 15, 3.3, 5 6.4 THT SIP7
    39 RECOM | RNM Series | DC/DC, THT, 1 W, Single Output
    		1 3.3, 5, 12, 15 12, 15, 3.3, 5, 9 1, 2 THT DIP6
    40 RECOM | RO Series | DC/DC, THT, 1 W, Single Output
    		1 3.3, 5, 12, 15, 24 12, 15, 24, 3.3, 5, 9 1, 2 THT SIP4
    41 RECOM | RO/E Series | DC/DC, THT, 1 W, Single Output
    		1 3.3, 5, 12, 24 5 1, 2 THT SIP4
    42 RECOM | ROM Series | DC/DC, THT, 1 W, Single Output
    		1 3.3, 5, 12 12, 15, 5 3 THT SIP4 Micro
    43 RECOM | RP-xx06 Series | DC/DC, THT, 1 W, Single Output
    		1 5, 12, 15, 24 6 5.2 THT SIP7
    44 RECOM | RU Series | DC/DC, THT, 1 W, Single Output
    		1 3.3, 5 5 / 5 1, 2 THT SIP7
    45 RECOM | RUM Series | DC/DC, THT, 1 W, Single Output
    		1 3.3, 5 5 / 5 1, 2 THT SIP6
    46 RECOM | RxxP06 Series | DC/DC, THT, 1 W, Single Output
    		1 5, 12, 15, 24 6 6.4 THT SIP7
    47 RECOM | RxxPxx Series | DC/DC, THT, 1 W
    		1 5, 9, 12, 15, 24 12, 15, 3.3, 5, 9, ± 12, ± 15, ± 3.3, ± 5, ± 9 6.4 THT SIP7
    48 RECOM | RN Series | DC/DC, THT, 1.25 W, Single Output
    		1.25 3.3, 5, 9, 12, 15, 24 12, 15, 24, 3.3, 5, 7, 9 1, 2 THT DIP8
    49 RECOM | R2D Series | DC/DC, SMD, 2 W, Dual Output
    		2 5, 12, 15, 24 ± 12, ± 15, ± 24, ± 5, ± 9 1, 3 SMD SMD 6 Pin, SMD 10 Pin, SMD 12 Pin
    50 RECOM | R2S Series | DC/DC, SMD, 2 W, Single Output
    		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 RECOM | RD Series | DC/DC, THT, 2 W, Dual Output
    		2 5, 12, 24 ± 12, ± 15, ± 24, ± 5 1, 2 THT SIP7
    52 RECOM | REM2 Series | DC/DC, THT, 2 W
    		2 3.3, 5, 12, 15, 24 12, 3.3, 5, 9, ± 12, ± 3.3, ± 5 5.2 THT SIP8
    53 RECOM | RGZ Series | DC/DC, THT, 2 W, Dual Output
    		2 3.3, 5, 9, 12, 15, 24 ± 12, ± 15, ± 24, ± 3.3, ± 5, ± 9 3, 4 THT DIP14
    54 RECOM | RI Series | DC/DC, THT, 2 W, Single Output
    		2 5, 12, 15, 24 12, 15, 5 1 THT SIP4
    55 RECOM | RJZ Series | DC/DC, THT, 2 W, Single Output
    		2 3.3, 5, 9, 12, 15, 24 12, 15, 24, 3.3, 5, 9 3, 4 THT DIP14
    56 RECOM | RKZ Series | DC/DC, THT, 2 W
    		2 5, 12, 24 12, 15, 5, ± 12, ± 15, ± 5 3, 4 THT SIP7
    57 RECOM | RKZ-xx2005 Series | DC/DC, THT, 2 W, Dual Output
    		2 5, 12, 15, 24 20 / -5 3, 4 THT SIP7
    58 RECOM | RUZ Series | DC/DC, THT, 2 W, Dual Output
    		2 5 5 / 5 1, 2 THT SIP7
    59 RECOM | RV Series | DC/DC, THT, 2 W
    		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 RECOM | RV/R Series | DC/DC, THT, 2 W
    		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 RECOM | RxxP21503 Series | DC/DC, THT, 2 W, Dual Output
    		2 12, 15, 24 15 / -3 6.4 THT SIP7
    62 RECOM | RxxP21509 Series | DC/DC, THT, 2 W, Dual Output
    		2 5, 12, 24 15 / -9 6.4 THT SIP7
    63 RECOM | RxxP22005 Series | DC/DC, THT, 2 W, Dual Output
    		2 5, 12, 15, 24 20 / -5 6.4 THT SIP7
    64 RECOM | RxxP2xx Series | DC/DC, THT, 2 W
    		2 5, 12, 15, 24 12, 15, 3.3, 5, 9, ± 12, ± 15, ± 3.3, ± 5, ± 9 6.4 THT SIP7
    65 RECOM | RxxP2xx/R Series | DC/DC, THT, 2 W
    		2 5, 12, 15, 24 12, 15, 3.3, 5, 9, ± 12, ± 15, ± 3.3, ± 5, ± 9 6.4, 8 THT SIP7
    66 RECOM | RI3 Series | DC/DC, THT, 3 W, Single Output
    		3 5, 12, 15, 24 12, 15, 5, 9 1, 2, 3 THT SIP4
    67 RECOM | RKZ3 Series | DC/DC, THT, 3 W, Single Output
    		3 5, 12, 24 12, 5 3, 4 THT SIP7
    68 RECOM | RAM Series | DC/DC, SMD, 1 W, Single Output
    NRND
    		1 5, 12, 24 5 3, 4 SMD SMD
    69 RECOM | RTM Series | DC/DC, SMD, 2 W, Single Output
    NRND
    		2 5, 12, 24 5 2, 3 SMD SMD

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