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SERIES KR - Isolated Regulated 20 Watt DC-DC Converters

Series KR
DC to DC Converters
Single and Dual Output

Wide Input Range up to 3.33:1
Isolated Regulated up to 20 Watt DC to DC Converters
Full Regulated All Units Shielded

This series of high efficiency, wide input range, encapsulated regulators come in 51 different models. These units feature a 500 VOLT DC input to output isolation in both single and dual output models. The KR Series will operate over a temperature range of -25º C TO +70º C with no heat sink or electrical derating. These units are excellent for applications where input voltage varies dramatically, yet a high efficiency and output voltage regulation must be maintained.

FEATURES
  • Single and dual isolated outputs
  • Voltage regulation over input range of
Unit
Low
High
KRA
18V
36V
KRB
36V
60V
KRC
18V
60V

  • Encapsulated semiconductors, conservatively rated for maximum reliability.
  • Load regulation (see table for typical variation at different loads)
  • Line regulation = Typical values
18-36V DC = ±1.5%
    36-60V DC = ±1.5%
    18-60V DC = ±3.0%
    • High efficiency - up to 83%
    • Will operate over a temperature range of -25º C to
      +70º C with no heat sink or electrical derating
    • 6 sided shielding
    • Isolation - 100 megohms at 500 volts DC
    • External output trimming pin standard +5%
    • Each unit is supplied with an external control pin. This "C" pin, when connected to the negative (-) input, will disable the unit, allowing for remote shutdown.
    TYPICAL CHARACTERISTICS:

    Test conditions: 25º C ambient
    Operating temperature: -25º C to +70º C ambient
    Output voltage tolerance: ± 2.5% at typcial input voltage
    Output voltage temperature coefficient: 0.02% / º C
    Storage temperature: -55º C to +125º C
    Short circuit protection: Temporary
    Operating frequency: 40Khtz, typical

    OPTIONS AVAILABLE

    • Selected Mil-Std 883
    • Expanded operating temp.
      (-55º C to +85º C)
    • Stabilization Bake (125º C ambient)
    • Temperature Cycle (-55º C to +125º C)
    • High Temp, full power burn in (100% power, 125º C case temp)





    SERIES KR - SINGLE OUTPUT

    Pico
    Part
    Number
    Input
    Voltage
    Range
    Output
    Voltage
    DC
    Max.
    Load
    Current
    mA
    Max.
    Output
    Power
    (watts)
    EFF.@
    Full
    Load
    Typical
    (%)*
    Input
    Current
    Full
    Load
    Typical
    (mA)*
    Out Volt
    Ripple @
    Full LD.
    1-1MHz BW
    mv p-p
    Out Volt
    Tolerance
    (± %)*
    **

    VLD. Reg.
    25%-100%
    Load
    (± %)*

    Line
    Regu-
    lation*
    (± %)
    Price
    (US $)
    KRA3.3S
    KRA5S
    KRA5.2S
    KRA9S
    KRA12S
    KRA15S
    KRA24S
    KRA28S
    KRA48S
    KRA100S
    18-36
    18-36
    18-36
    18-36
    18-36
    18-36
    18-36
    18-36
    18-36
    18-36
    3.3
    5
    5.2
    9
    12
    15
    24
    28
    48
    100
    6061
    4000
    3846
    2222
    1667
    1333
    833
    714
    417
    200
    20
    20
    20
    20
    20
    20
    20
    20
    20
    20
    78
    78
    78
    80
    78
    78
    81
    82
    83
    83
    950
    950
    950
    925
    950
    950
    915
    905
    890
    890
    60
    60
    60
    60
    60
    60
    60
    60
    80
    100
    1.00
    0.75
    0.75
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    3.00
    2.50
    2.50
    1.25
    1.00
    1.00
    0.50
    0.50
    0.50
    0.50
    2.50
    1.50
    1.50
    0.75
    0.50
    0.50
    0.25
    0.25
    0.25
    0.25
    226.77
    226.77
    226.77
    226.77
    226.77
    226.77
    226.77
    226.77
    226.77
    304.66
    KRB3.3S
    KRB5S
    KRB5.2AS
    KRB9S
    KRB12S
    KRB15S
    KRB24S
    KRB28S
    KRB48S
    KRB100S
    36-60
    36-60
    36-60
    36-60
    36-60
    36-60
    36-60
    36-60
    36-60
    36-60
    3.3
    5
    5.2
    9
    12
    15
    24
    28
    48
    100
    6061
    4000
    3846
    2222
    1667
    1333
    833
    714
    417
    200
    20
    20
    20
    20
    20
    20
    20
    20
    20
    20
    78
    78
    78
    80
    78
    78
    81
    82
    83
    83
    534
    535
    535
    520
    535
    535
    515
    510
    500
    500
    60
    60
    60
    60
    60
    60
    60
    60
    80
    100
    1.00
    0.75
    0.75
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    3.00
    2.50
    2.50
    1.25
    1.00
    1.00
    0.50
    0.50
    0.50
    0.50
    2.50
    1.00
    1.00
    0.50
    0.50
    0.50
    0.25
    0.25
    0.25
    0.25
    264.78
    264.78
    264.78
    264.78
    264.78
    264.78
    264.78
    264.78
    264.78
    355.73
    KRC3.3S
    KRC5S
    KRC5.2S
    KRC9S
    KRC12S
    KRC15S
    KRC24S
    KRC28S
    KRC48S
    KRC100S
    18-60
    18-60
    18-60
    18-60
    18-60
    18-60
    18-60
    18-60
    18-60
    18-60
    3.3
    5
    5.2
    9
    12
    15
    24
    28
    48
    100
    6061
    4000
    3846
    2222
    1667
    1333
    833
    714
    417
    200
    20
    20
    20
    20
    20
    20
    20
    20
    20
    20
    78
    78
    78
    80
    78
    78
    81
    82
    83
    83
    657
    660
    660
    640
    660
    660
    635
    625
    615
    615
    60
    60
    60
    60
    60
    60
    60
    60
    80
    100
    1.00
    0.75
    0.75
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    3.0
    2.50
    2.50
    1.25
    1.00
    1.00
    0.50
    0.50
    0.50
    0.50
    2.50
    2.00
    2.00
    1.00
    0.75
    0.75
    0.50
    0.50
    0.50
    0.50
    283.13
    283.13
    283.13
    283.13
    283.13
    283.13
    283.13
    283.13
    283.13
    379.85
    * Measurements taken with input voltage set at mid value
    ** 10% minimum load require

    SERIES KR - DUAL OUTPUT

    Pico
    Part
    Number
    Input
    Voltage
    Range
    Output
    Voltage
    DC
    Per
    Output
    Max.
    Load
    Current
    mA
    Per
    Output
    Max.
    Output
    Power
    (watts)
    Per
    Output
    EFF.@
    Full
    Load
    Typical
    (%)*
    INPUT
    Current
    Full
    Load
    Typical
    (mA)*
    Out Volt
    Ripple @
    Full LD.
    1-1MHz BW
    mv p-p
    Out Volt
    Tolerance
    (± %)*
    **

    VLD. Reg.
    25%-100%
    Load
    (± %)*

    Line
    Regu-
    lation
    (± %)
    Price
    (US $)
    KRA5D
    KRA9D
    KRA12D
    KRA15D
    KRA24D
    KRA28D
    KRA48D
    18-36
    18-36
    18-36
    18-36
    18-36
    18-36
    18-36
    5
    9
    12
    15
    24
    28
    48
    2000
    1111
    833
    667
    417
    357
    208
    10
    10
    10
    10
    10
    10
    10
    78
    80
    78
    78
    81
    82
    83
    950
    925
    950
    950
    915
    905
    890
    60
    60
    60
    60
    60
    60
    80
    0.75
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    2.50
    1.25
    1.00
    1.00
    0.50
    0.50
    0.50
    1.50
    0.75
    0.50
    0.50
    0.25
    0.25
    0.25
    259.54
    259.54
    259.54
    259.54
    259.54
    259.54
    278.94
    KRB5D
    KRB9D
    KRB12D
    KRB15D
    KRB24D
    KRB28D
    KRB48D
    36-60
    36-60
    36-60
    36-60
    36-60
    36-60
    36-60
    5
    9
    12
    15
    24
    28
    48
    2000
    1111
    833
    667
    417
    357
    208
    10
    10
    10
    10
    10
    10
    10
    78
    80
    78
    78
    81
    82
    83
    535
    520
    535
    535
    515
    510
    500
    60
    60
    60
    60
    60
    60
    80
    0.75
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    2.50
    1.25
    1.00
    1.00
    0.50
    0.50
    0.50
    1.00
    0.50
    0.50
    0.50
    0.25
    0.25
    0.25
    297.55
    297.55
    297.55
    297.55
    297.55
    297.55
    319.80
    KRC5D
    KRC9D
    KRC12D
    KRC15D
    KRC24D
    KRC28D
    KRC48D
    18-60
    18-60
    18-60
    18-60
    18-60
    18-60
    18-60
    5
    9
    12
    15
    24
    28
    48
    2000
    1111
    833
    667
    417
    357
    208
    10
    10
    10
    10
    10
    10
    10
    78
    80
    78
    78
    81
    82
    83
    660
    640
    660
    660
    635
    625
    615
    60
    60
    60
    60
    60
    60
    80
    0.75
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    2.50
    1.25
    1.00
    1.00
    0.50
    0.50
    0.50
    2.00
    1.00
    0.75
    0.75
    0.50
    0.50
    0.50
    315.90
    315.90
    315.90
    315.90
    315.90
    315.90
    339.52
    * Measurements taken with input voltage set at mid value
    ** 10% minimum load require

     

    Series KR Single Output

    Series KR Single Output
    C: is control pin
    NOTE: all radii typ. 7/64"

    bottom view

    Larger Size Drawing

    Each unit is supplied with an external control pin. This "C" pin,
    when connected to the negative (-) input, will disable the unit,
    allowing for remote shutdown.

    Larger Size Schematic

    Typical Weight: 165 Grams

       

    Series KR Dual Output

    Series KR Dual Output
    C: is control pin
    NOTE: all radii typ. 7/64"

    bottom view

    Larger Size Drawing

    Each unit is supplied with an external control pin. This "C" pin,
    when connected to the negative (-) input, will disable the unit,
    allowing for remote shutdown.

    Larger Size Schematic

    Typical Weight: 165 Grams

       



    For immediate engineering assistance or to place an order:
    Call Toll Free: 800-431-1064

    PICO Electronics, Inc.

    143 Sparks Ave. Pelham, NY 10803-1810
    Tel: 914-738-1400 or Fax: 914-738-8225

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