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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-78K15-0.5 RECOM
    R-78K-0.5 Series Single Output 15 V 500 mA Non Isolated DC/DC Converter - SIP-3
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    In Stock: 387
    Ships Immediately
    MANUFACTURER STOCK 1000
    can ship 12/5/25

    43
    $3.491
    86
    $3.400
    258
    $3.293
    516
    $3.277
    1,032
    $3.247
    R-78K2.5-0.5 RECOM
    R-78K-0.5 Series Single Output 2.5 V 500 mA Non Isolated DC/DC Converter - SIP-3
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    In Stock: 43
    Ships Immediately
    MANUFACTURER STOCK 1000
    can ship 12/5/25

    43
    $5.038
    86
    $4.380
    258
    $3.906
    516
    $3.752
    1,032
    $3.721
    R-78K3.3-0.5 RECOM
    R-78K-0.5 Series Single Output 3.3 V 500 mA Non Isolated DC/DC Converter - SIP-3
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    In Stock: 1505
    Ships Immediately
    MANUFACTURER STOCK 1000
    can ship 12/5/25

    43
    $3.491
    86
    $3.400
    258
    $3.293
    516
    $3.277
    1,032
    $3.247
    R-78K5.0-0.5 RECOM
    R-78K-0.5 Series Single Output 5 V 500 mA Non Isolated DC/DC Converter - SIP-3
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    In Stock: 4859
    Ships Immediately
    MANUFACTURER STOCK 1000
    can ship 12/5/25
    On Order: 4300
    can ship 12/15/25

    43
    $3.906
    86
    $3.797
    258
    $3.629
    516
    $3.599
    1,032
    $3.583
    R-78K6.5-0.5 RECOM
    R-78K-0.5 Series Single Output 6.5 V 500 mA Non Isolated DC/DC Converter - SIP-3
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    In Stock: 430
    Ships Immediately
    MANUFACTURER STOCK 453
    can ship 12/5/25

    43
    $3.825
    86
    $3.794
    258
    $3.633
    516
    $3.605
    1,032
    $3.376
    R-78K9.0-0.5 RECOM
    R-78K-0.5 Series Single Output 9 V 500 mA Non Isolated DC/DC Converter - SIP-3
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    In Stock: 129
    Ships Immediately
    MANUFACTURER STOCK 1000
    can ship 12/5/25

    43
    $3.920
    86
    $3.813
    258
    $3.644
    516
    $3.599
    1,032
    $3.583
    R-78K12-1.0 RECOM
    R-78K-1.0 Series Single Output 12 V 1 A Non Isolated DC/DC Converter - SIP-3
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    In Stock: 129
    Ships Immediately
    MANUFACTURER STOCK 33
    can ship 12/5/25

    43
    $4.349
    86
    $4.273
    258
    $4.149
    516
    $4.135
    1,032
    $4.120
    R-78K15-1.0 RECOM
    R-78K-1.0 Series Single Output 15 V 1 A Non Isolated DC/DC Converter - SIP-3
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    In Stock: 43
    Ships Immediately
    MANUFACTURER STOCK 1000
    can ship 12/5/25

    43
    $4.747
    86
    $4.563
    258
    $4.487
    516
    $4.456
    1,032
    $4.441
    R-78K1.8-1.0 RECOM
    R-78K-1.0 Series Single Output 1.8 V 1 A Non Isolated DC/DC Converter - SIP-3
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    In Stock: 43
    Ships Immediately
    MANUFACTURER STOCK 938
    can ship 12/5/25

    43
    $5.481
    86
    $5.345
    258
    $4.900
    516
    $4.686
    1,032
    $4.609
    R-78K2.5-1.0 RECOM
    R-78K-1.0 Series Single Output 2.5 V 1 A Non Isolated DC/DC Converter - SIP-3
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    In Stock: 172
    Ships Immediately
    MANUFACTURER STOCK 187
    can ship 12/5/25

    43
    $4.732
    86
    $4.686
    258
    $4.671
    516
    $4.273
    1,032
    $4.074