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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 PRODUCT RESULTS FOR ""

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89 Products

    R-78E5.0-1.0 RECOM
    DC-DC Switching Regulator - 7 to 28VDC Input - 5VDC@1.0A Output - LM78xx Pin Compatable
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    In Stock: 5408
    Can Ship immediately 
    MANUFACTURER STOCK 1000
    can ship 12/1/25

    42
    $3.25
    84
    $3.15
    252
    $3.08
    504
    $3.07
    1,008
    $3.05
    R-78E9.0-0.5 RECOM
    DC-DC Switching Regulator - 12 to 28VDC Input - 9VDC@0.5A Output - LM78xx Pin Compatable
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    In Stock: 340
    Can Ship immediately 
    MANUFACTURER STOCK 1000
    can ship 12/1/25

    42
    $2.735
    84
    $2.676
    252
    $2.576
    504
    $2.563
    1,008
    $2.550
    R-78HB12-0.5 RECOM
    DC-DC Switching Regulator - 17 to 72VDC Input - 12VDC@0.5A Output - LM78xx Pin Compatable
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    In Stock: 35
    Can Ship immediately 
    MANUFACTURER STOCK 1000
    can ship 12/5/25

    5
    $12.93
    42
    $12.45
    84
    $12.39
    126
    $12.32
    252
    $12.26
    R-78HB12-0.5/W RECOM
    DC-DC Switching Regulator - 17 to 72VDC Input - 12VDC@0.5A Output - LM78xx Pin Compatable /Wire Leads
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    In Stock: 49
    Can Ship immediately 
    MANUFACTURER STOCK 156
    can ship 12/5/25

    1
    $19.13
    10
    $14.67
    25
    $14.26
    50
    $14.09
    100
    $14.02
    R-78HB12-0.5L RECOM
    DC-DC Switching Regulator - 17 to 72VDC Input - 12VDC@0.5A Output - LM78xx Pin Compatable /90° Bend
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    In Stock: 504
    Can Ship immediately 
    MANUFACTURER STOCK 1000
    can ship 12/1/25

    5
    $15.11
    42
    $14.18
    84
    $13.87
    126
    $13.67
    252
    $13.60
    R-78HB15-0.5 RECOM
    DC-DC Switching Regulator - 20 to 72VDC Input - 15VDC@0.5A Output - LM78xx Pin Compatable
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    In Stock: 252
    Can Ship immediately 
    MANUFACTURER STOCK 1000
    can ship 12/1/25

    5
    $14.53
    42
    $13.64
    84
    $13.34
    126
    $13.15
    252
    $13.09
    R-78HB24-0.3 RECOM
    DC-DC Switching Regulator - 36 to 72VDC Input - 24VDC@0.3A Output - LM78xx Pin Compatable
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    In Stock: 74
    Can Ship immediately 
    MANUFACTURER STOCK 1000
    can ship 12/1/25

    1
    $18.82
    10
    $15.34
    42
    $14.65
    84
    $14.32
    252
    $14.25
    R-78HB5.0-0.5 RECOM
    DC-DC Switching Regulator - 9 to 72VDC Input - 5VDC@0.5A Output - LM78xx Pin Compatable
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    In Stock: 241
    Can Ship immediately 
    MANUFACTURER STOCK 1000
    can ship 12/1/25

    5
    $13.91
    42
    $12.72
    84
    $12.33
    126
    $12.10
    252
    $11.71
    R-78HB5.0-0.5/W RECOM
    DC-DC Switching Regulator - 9 to 72VDC Input - 5VDC@0.5A Output - LM78xx Pin Compatable /Wire Leads
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    In Stock: 100
    Can Ship immediately 
    MANUFACTURER STOCK 696
    can ship 12/1/25

    1
    $18.24
    10
    $13.95
    25
    $13.67
    50
    $13.42
    100
    $13.36
    R-78HB5.0-0.5L RECOM
    DC-DC Switching Regulator - 9 to 72VDC Input - 5VDC@0.5A Output - LM78xx Pin Compatable /90° Bend
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    In Stock: 89
    Can Ship immediately 
    MANUFACTURER STOCK 81
    can ship 12/1/25

    5
    $12.61
    42
    $12.24
    84
    $12.18
    126
    $12.12
    252
    $12.06