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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-78K9.0-2.0 RECOM
    R-78K-2.0 Series Single Output 9 V 2 A Non Isolated DC/DC Converter - SIP-3
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    In Stock: 43
    Ships Immediately
    MANUFACTURER STOCK 39
    can ship 12/5/25

    43
    $6.509
    86
    $6.278
    129
    $6.247
    258
    $5.941
    516
    $5.819
    R-78K12-2.0L RECOM
    2A DC/DC-Converter - 12VDC - Input: 14-36 VDC - -40 to 79°C - SIP3 - Tube
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    In Stock: 172
    Ships Immediately
    MANUFACTURER STOCK 1000
    can ship 12/5/25

    43
    $6.570
    86
    $6.356
    129
    $6.247
    258
    $6.217
    516
    $6.186
    R-78K1.2-2.0L RECOM
    2A DC/DC-Converter - 1.2VDC - Input: 4.5-36 VDC - -40 to 91°C - SIP3 - Tube
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    In Stock: 387
    Ships Immediately

    43
    $6.662
    86
    $6.156
    129
    $6.125
    258
    $5.819
    516
    $5.804
    R-78K15-2.0L RECOM
    2A DC/DC-Converter - 15VDC - Input: 18-36 VDC - -40 to 62°C - SIP3 - Tube
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    In Stock: 59
    Ships Immediately
    MANUFACTURER STOCK 1000
    can ship 12/5/25

    43
    $7.221
    86
    $7.045
    129
    $7.010
    258
    $6.857
    516
    $6.708
    R-78K1.5-2.0L RECOM
    2A DC/DC-Converter - 1.5VDC - Input: 4.5-36 VDC - -40 to 91°C - SIP3 - Tube
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    In Stock: 43
    Ships Immediately
    MANUFACTURER STOCK 465
    can ship 12/5/25

    43
    $7.090
    86
    $7.013
    129
    $6.906
    258
    $6.707
    516
    $6.677
    R-78K1.8-2.0L RECOM
    2A DC/DC-Converter - 1.8VDC - Input: 4.5-36 VDC - -40 to 91°C - SIP3 - Tube
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    In Stock: 43
    Ships Immediately
    MANUFACTURER STOCK 465
    can ship 12/5/25

    43
    $7.075
    86
    $6.998
    129
    $6.906
    258
    $6.431
    516
    $6.293
    R-78K2.5-2.0L RECOM
    2A DC/DC-Converter - 2.5VDC - Input: 4.5-36 VDC - -40 to 90°C - SIP3 - Tube
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    In Stock: 43
    Ships Immediately
    MANUFACTURER STOCK 455
    can ship 12/5/25

    43
    $5.513
    86
    $5.406
    129
    $5.328
    258
    $5.221
    516
    $5.114
    R-78K3.3-2.0L RECOM
    2A DC/DC-Converter - 3.3VDC - Input: 4.5-36 VDC - -40 to 90°C - SIP3 - Tube
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    In Stock: 86
    Ships Immediately
    MANUFACTURER STOCK 1000
    can ship 12/5/25

    43
    $7.163
    86
    $6.860
    129
    $6.827
    258
    $6.738
    516
    $6.634
    R-78K5.0-2.0L RECOM
    2A DC/DC-Converter - 5.0VDC - Input: 6.5-36 VDC - -40 to 87°C - SIP3 - Tube
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    In Stock: 129
    Ships Immediately
    MANUFACTURER STOCK 554
    can ship 12/5/25

    43
    $7.163
    86
    $6.831
    129
    $6.796
    258
    $6.558
    516
    $6.454