SMD Transformers

The heart of any DC/DC converter is the transformer. RECOM offers stand-alone, compact SMD transformers for low-wattage power supply applications. They can be driven by one of our transformer driver ICs or by your own circuit.

Transformer characteristics must be matched to the driver and application, so to simplify discrete power supply design, RECOM also offers matched driver IC and transformer pairs that are pre-tested to verify correct operation.

The transformer selection listed below are for common isolated DC power applications and are normally available ex-stock. Full custom transformer solutions are available upon request at short notice.
Vin (V)
  • Min
  • Nom
  • Max
  • Main Vout (V)
  • Min
  • Nom
  • Max
  • Iout 1 (mA)
  • Min
  • Nom
  • Max
  • Iout 2 (mA)
  • Min
  • Nom
  • Max
  • Isolation (kV)
  • Min
  • Nom
  • Max
  • Mounting Type
    Package Style
    Length (mm)
  • Min
  • Max
  • Width (mm)
  • Min
  • Max
  • Height (mm)
  • Min
  • Max
  • MAX Operating Temp (°C)
  • Min
  • Topology
    Primary Winding
    Secondary Winding
    Primary Inductance (µH)
    Center Tap
      Series Isolation (kV) Topology Primary Inductance (µH) WindingTurnsRatio Mounting Type
    1 RECOM | RBA-026 Series | TRANSFORMER, SMD
    Focus New
    6 Flyback 20 1:0.59:0.88 SMD
    2 RECOM | RBE-011 Series | TRANSFORMER, SMD
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    1.5 Flyback 15 1.67:1:1:1 SMD
    3 RECOM | RBE-014 Series | TRANSFORMER, SMD
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    1.5 Flyback 11 1:0.63:0.81:1 SMD
    4 RECOM | RBE-017 Series | TRANSFORMER, SMD
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    3 Flyback 11 1:1.4:1.4:1.4 SMD
    5 RECOM | RBE-023 Series | TRANSFORMER, SMD
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    1.5 Flyback 11 1:1.67:1:1 SMD
    6 RECOM | RBE-024 Series | TRANSFORMER, SMD
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    1.5 Flyback 11 1:0.71:0.5:1 SMD
    7 RECOM | RBE-025 Series | TRANSFORMER, SMD
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    1.5 Flyback 6.9 1.75:1.75:2.25:1:1:1 SMD
    8 RECOM | RBE-027 Series | TRANSFORMER, SMD
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    1.5 Flyback 48 3.6:2.4:1:1 SMD
    9 RECOM | RBE-029 Series | TRANSFORMER, SMD
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    1.5 Flyback 7 1:1.25:1.5:1.5 SMD
    10 RECOM | RBE-030 Series | TRANSFORMER, SMD
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    1.5 Flyback 6.9 0.88:0.88:1:1:1:1 SMD
    11 RECOM | RBE-038 Series | TRANSFORMER, SMD
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    1.5 Flyback 36 1:4.67:1:4.67:1:1.67 SMD
    12 RECOM | RMR-003 Series | TRANSFORMER, SMD
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    1.5 Full-Bridge 121 1:1.12 SMD
    13 RECOM | RMR-004 Series | TRANSFORMER, SMD
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    3 Full-Bridge 519 1:1:1.03:1.03 SMD
    14 RECOM | RMR-005 Series | TRANSFORMER, SMD
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    1.5 Push-Pull 169 1:0.9 SMD
    15 RECOM | RMR-006 Series | TRANSFORMER, SMD
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    1.5 Push-Pull 60 1:1.67 SMD
    16 RECOM | RMR-007 Series | TRANSFORMER, SMD
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    1.5 Push-Pull 82 1:1.14 SMD
    17 RECOM | RMR-008 Series | TRANSFORMER, SMD
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    3 Full-Bridge 158 1:1:1.125:1.125 SMD
    18 RECOM | RMR-009 Series | TRANSFORMER, SMD
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    1.5 Push-Pull 121 1.31:1 SMD
    19 RECOM | RMR-010 Series | TRANSFORMER, SMD
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    3 Full-Bridge 519 2.23:2.23:1:1 SMD
    20 RECOM | RMR-012 Series | TRANSFORMER, SMD
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    6.36 Full-Bridge 108 1:1:1.11:1.11 SMD
    21 RECOM | RMR-013 Series | TRANSFORMER, SMD
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    3 Full-Bridge 519 1.53:1.53:1:1 SMD
    22 RECOM | RMR-015 Series | TRANSFORMER, SMD
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    1.5 Push-Pull 82 1:1.29 SMD
    23 RECOM | RMR-016 Series | TRANSFORMER, SMD
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    3 Push-Pull 88 1:1:3.17:3.17 SMD
    24 RECOM | RMR-018 Series | TRANSFORMER, SMD
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    7.07 Full-Bridge 108 2.56:1 SMD
    25 RECOM | RMR-020 Series | TRANSFORMER, SMD
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    3 Push-Pull 139 1:1:2.53:2.53 SMD
    26 RECOM | RMR-028 Series | TRANSFORMER, SMD
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    7.07 Full-Bridge 85 1:1.125 SMD
    27 RECOM | RMR-031 Series | TRANSFORMER, SMD
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    7.07 Full-Bridge 381 1:0.67:0.42 SMD
    28 RECOM | RMR-039 Series | TRANSFORMER, SMD
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    1.5 Push-Pull 130 1:1.11 SMD
    29 RECOM | RPE-021 Series | TRANSFORMER, THT
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    6.08 Flyback 11 1:2.25:1:1.25 THT