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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-78HE5.0-0.3 RECOM
    DC-DC Switching Regulator - 6.5 to 72VDC Input - 5VDC@0.3A Output - LM78xx Pin Compatable
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    In Stock: 610
    Can Ship immediately 
    MANUFACTURER STOCK 1000
    can ship 12/1/25

    5
    $6.12
    42
    $5.03
    84
    $4.92
    126
    $4.84
    252
    $4.81
    R-78S3.3-0.1 RECOM
    DC-DC Boost Converter - 0.65 to 3.15VDC Input - 3.3VDC@0.1A Output - 4 Lead SIP
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    In Stock: 32
    Can Ship immediately 
    MANUFACTURER STOCK 133
    can ship 12/1/25

    1
    $6.083
    42
    $5.530
    84
    $5.310
    126
    $5.180
    252
    $4.960
    R-78T12-1.0/FC-TRAY RECOM
    DC-DC Switching Regulator - 15 to 42VDC Input - 12VDC@1A Output - SMD
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    In Stock: 16
    Can Ship immediately 
    MANUFACTURER STOCK 248
    can ship 12/1/25

    5
    $13.59
    25
    $12.72
    50
    $12.35
    100
    $11.97
    250
    $11.49
    R-78W12-0.5 RECOM
    DC-DC Switching Regulator - 15 to 32VDC Input - 12VDC@0.5A Output - LM78xx Pin Compatable /Wire Leads
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    In Stock: 257
    Can Ship immediately 
    MANUFACTURER STOCK 592
    can ship 12/1/25

    5
    $10.69
    25
    $8.96
    50
    $8.72
    100
    $8.67
    250
    $8.63
    R-78W3.3-0.5 RECOM
    DC-DC Switching Regulator - 6.5 to 32VDC Input - 3.3VDC@0.5A Output - LM78xx Pin Compatable /Wire Leads
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    In Stock: 382
    Can Ship immediately 
    MANUFACTURER STOCK 1000
    can ship 12/1/25

    25
    $8.26
    50
    $7.94
    100
    $7.69
    250
    $7.40
    500
    $7.17
    R-78W5.0-0.5 RECOM
    DC-DC Switching Regulator - 6.5 to 32VDC Input - 5VDC@0.5A Output - LM78xx Pin Compatable /Wire Leads
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    In Stock: 450
    Can Ship immediately 
    MANUFACTURER STOCK 1000
    can ship 12/1/25

    25
    $7.84
    50
    $7.67
    100
    $7.57
    250
    $7.53
    500
    $7.50
    R-78W9.0-0.5 RECOM
    DC-DC Switching Regulator - 11 to 32VDC Input - 9VDC@0.5A Output - LM78xx Pin Compatable /Wire Leads
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    In Stock: 50
    Can Ship immediately 
    MANUFACTURER STOCK 675
    can ship 12/1/25

    5
    $10.12
    25
    $8.35
    50
    $8.20
    100
    $8.10
    250
    $8.06
    R-782.5-1.0 RECOM
    DC-DC Switching Regulator - 4.75 to 32VDC Input - 2.5VDC@1A Output - LM78xx Pin Compatable
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    In Stock: 81
    Can Ship immediately 
    MANUFACTURER STOCK 232
    can ship 12/1/25

    5
    $8.76
    42
    $7.80
    84
    $7.70
    126
    $7.66
    252
    $7.57
    R-78B12-1.0L RECOM
    DC-DC Switching Regulator - 16 to 32VDC Input - 12VDC@1A Output - LM78xx Pin Compatable /90° Bend
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    In Stock: 509
    Can Ship immediately 
    MANUFACTURER STOCK 1000
    can ship 12/1/25

    5
    $10.08
    42
    $9.83
    84
    $9.63
    126
    $9.58
    252
    $9.53
    R-78B15-1.0 RECOM
    DC-DC Switching Regulator - 20 to 32VDC Input - 15VDC@1A Output - LM78xx Pin Compatable
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    In Stock: 96
    Can Ship immediately 
    MANUFACTURER STOCK 554
    can ship 12/5/25

    5
    $11.27
    42
    $9.39
    84
    $9.27
    126
    $9.22
    252
    $9.18