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RECOM's R-78K-xx Series DC/DC Switching Regulators

Switching regulators - superior alternative to inefficient linear ones, offer up to 97% efficiency, eliminating the need for heat sinks, saving space and costs. RECOM's regulators integrate seamlessly, with pin-compatible replacements, wide input range, and accurate output voltage regulation, making them a cost-effective choice.

  • R-78K-0.5 Series - Cutting-edge switching regulator with high efficiency, wide input range, and cost-effective production. No heat-sink needed, operates from -40 to 90°C, and saves board space in a compact package.
  • R-78K-1.0 Series - Unleashing high efficiency up to 95%, this switching regulator delivers precision and wide-ranging capabilities. No heat-sink needed, operates from -40 to 90°C with minimal derating, and saves valuable board space in a sleek TO-220 compatible SIP3 package.
  • R-78K-2.0 Series - Elevate your power solutions with up to 96% efficiency, wide input range, and cost-effectiveness. No heat-sink needed, operates seamlessly from -40 to 90°C without derating, and preserves board space in a stylish TO-220 compatible SIP3 package.
  • R-78K-2.0(L) Series - Unmatched performance with fixed output options from 1.2V to 15V, reaching up to 96% efficiency. Horizontal mount for space-critical designs, no heatsink needed, and operating at +110°C max ensures reliability.
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89 Products

    R-78K3.3-1.0 RECOM
    R-78K-1.0 Series Single Output 3.3 V 1 A Non Isolated DC/DC Converter - SIP-3
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    In Stock: 344
    Immediately
    MANUFACTURER STOCK 1000
    Ships 8/28/26

    43
    $3.31
    86
    $3.22
    258
    $3.13
    516
    $3.12
    1,032
    $3.11
    R-78K5.0-1.0 RECOM
    The R-78K5.0-1.0 is a non-isolated, 1.0A DC/DC switching regulator providing a 5.0V output from a wide input volt ...
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    In Stock: 731
    Immediately
    MANUFACTURER STOCK 1000
    Ships 8/28/26

    43
    $3.30
    86
    $3.19
    258
    $3.12
    516
    $3.11
    1,032
    $3.10
    R-78K9.0-1.0 RECOM
    R-78K-1.0 Series Single Output 9 V 1 A Non Isolated DC/DC Converter - SIP-3
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    In Stock: 172
    Immediately
    MANUFACTURER STOCK 1000
    Ships 8/28/26

    43
    $3.25
    86
    $3.09
    258
    $3.07
    516
    $3.06
    1,032
    $3.05
    R-78K12-2.0 RECOM
    R-78K-2.0 Series Single Output 12 V 2 A Non Isolated DC/DC Converter - SIP-3
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    In Stock: 301
    Immediately
    MANUFACTURER STOCK 1000
    Ships 8/28/26

    43
    $4.69
    86
    $4.57
    129
    $4.48
    258
    $4.46
    516
    $4.45
    R-78K1.5-2.0 RECOM
    Non-Isolated DC/DC Converters 4.5-36Vin 1.5Vout 2A
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    MANUFACTURER STOCK 218
    Ships 8/28/26

    43
    $5.28
    86
    $5.07
    129
    $4.95
    258
    $4.74
    516
    $4.53
    R-78K15-2.0 RECOM
    R-78K-2.0 Series Single Output 15 V 2 A Non Isolated DC/DC Converter - SIP-3
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    In Stock: 210
    Immediately
    MANUFACTURER STOCK 1000
    Ships 8/28/26

    43
    $4.95
    86
    $4.81
    129
    $4.71
    258
    $4.69
    516
    $4.68
    R-78K1.8-2.0 RECOM
    Non-Isolated DC/DC Converters 4.5-36Vin 1.8Vout 2A
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    In Stock: 43
    Immediately
    MANUFACTURER STOCK 194
    Ships 8/28/26

    43
    $5.39
    86
    $5.17
    129
    $5.06
    258
    $4.83
    516
    $4.62
    R-78K2.5-2.0 RECOM
    Non-Isolated DC/DC Converters 4.5-36Vin 2.5Vout 2A
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    In Stock: 43
    Immediately
    MANUFACTURER STOCK 617
    Ships 8/28/26

    43
    $5.39
    86
    $5.17
    129
    $5.06
    258
    $4.83
    516
    $4.62
    R-78K3.3-2.0 RECOM
    R-78K-2.0 Series Single Output 3.3 V 2 A Non Isolated DC/DC Converter - SIP-3
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    In Stock: 172
    Immediately
    MANUFACTURER STOCK 1000
    Ships 8/28/26

    43
    $4.87
    86
    $4.82
    129
    $4.74
    258
    $4.72
    516
    $4.70
    R-78K5.0-2.0 RECOM
    The R-78K5.0-2.0 is a non-isolated DC/DC switching regulator that provides a regulated 5V output at up to 2.0A.
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    MANUFACTURER STOCK 1000
    Ships 8/28/26

    43
    $4.62
    86
    $4.51
    129
    $4.47
    258
    $4.46
    516
    $4.45