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Low Resistance Current Sensing (Through Hole)



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  1. A-H Series Manganin® Foil Precision Resistor (1mΩ to 100Ω)

    A-H Series Manganin® Foil Precision Resistor (1mΩ to 100Ω)

    The A-H resistor series from Isabellenhuette offers 4-terminal connection technology for current sensing applications. The Kelvin connections on this resistor allow high precision measurements even with low resistance values. This resistor has low inductance and has high pulse power handling capabilities.

    • 4-Terminal connection
    • Available in select resistance values between 1mΩ to 100Ω
    • Power ratings of 3W in free air or 10W on a suitable heatsink
    • Maximum permanent current of 81A.
    • ±0.1% tolerance available on select resistance values
    • TCR of <30ppm/°C between +20°C and +60°C
    More Info
  2. A-N Series Manganin Foil Precision Resistor 1mR to 10R

    A-N Series Manganin Foil Precision Resistor 1mR to 10R

    This resistor has low inductance and has high pulse power of up to ten times the continuous power rating, and is ideal for instrumentation circuits.

    • Available in values from 1mΩ to 10Ω
    • 1W free air power handling
    • ±0.1% tolerance
    • 10ppm/°C TCR
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  3. BVH solid alloy element resistor series (up to 5W, 100A)

    BVH solid alloy element resistor series (up to 5W, 100A)

    The BVH series resistors are made up of an electron beam welded sandwich of copper and Manganin or Aluchrome resistance alloys. The resistors offer a continuous current load of up to 100A and a permanent power rating of up to 5W (0.5mOhm). They are ideally suited for through hole high current applications and are suitable for wave soldering.

    • 0.5mΩ resistance value available
    • 5W permanent power rating
    • Continuous current load up to 100A
    • Size 3820
    • Heavy copper connectors
    • Excellent long-term stability
    • AEC-Q200 qualified
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  4. HPCR-4T Series High Power Current Sensing Resistor

    HPCR-4T Series High Power Current Sensing Resistor

    The  HPCR-4T High Power Precision Current Sensing Resistors is designed with Kelvin connections to allow high precision measurements with low resistance values, with excellent long term stability & TCR.

    Manufactured with a non-inductive copper/manganin element, which is encapsulated within a ceramic case and finally sealed with a cement molding.

    An additional feature of the HPCR-4T resistor is a short term overload rating of 2.5x it's maximum rated power for 5 seconds.

     

    Ideal replacement to the Isabellenhuette A-N or AN series

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  5. IRHF series precision shunt 50A - 500A

    IRHF series precision shunt 50A - 500A

    With a temperature coefficient of ± 15ppm/°C between +20°C and +60°C, self heating errors are kept to a minimum. Custom current or output voltages are also available.

    • 50 - 500A
    • 100mV output
    • 1% - 0.1% tolerance
    • Custom design options
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  6. MP821 Series Kool-Pak TO-220 Power Resistors

    MP821 Series Kool-Pak TO-220 Power Resistors

    The MP821 Kool-Tab® Power Film Resistors are constructed with Caddock's Micronox® resistance film fired onto a flat ceramic substrate which is thermally bonded to the copper heat sink tab. The resistor body is then molded with a high temperature molding compound to finish the metal tab TO-220 package. The lead wire attachment and resistance element geometry are configured to provide outstanding non-inductive performance. 

    The resistance element is isolated from the heatsink mount tab. The device can be clip or screw mounted to the heatsink.  By clipping the resistor to the heat sink, the mounting is ess prone to vibration effects than conventional devices.

    • 20W @ +25°C (mounted on suitable heatsink)
    • 2.25W free-air power rating
    • 0.02Ω to 9.99Ω resistance range
    • Non-inductive design
    • TO-220 package
    More Info
  7. MPM20 Series Heat sink mount "Pure Tin Free" resistors 20W - 0.02R to 10K

    MPM20 Series Heat sink mount "Pure Tin Free" resistors 20W - 0.02R to 10K

    The Caddock MPM20 Kool-Tab® Power Film Resistors introduce a ”Pure Tin Free” design for High Performance Applications.  Caddock's proven Micronox® resistance film system is utilized in the widely accepted TO-220 Power Package to provide a compact 20 watt heat sink mountable resistor. The non-inductive design makes this resistor ideal in high frequency communications, power switching circuits and snubbers. The special performance features of the series MPM20 Kool-Tab® Power Film Resistors include:

    • 20W power rating at +25°C case temperature (suitable heatsink required)
    • 2.25W in free-air.
    • 0.02Ω to 10KΩ resistance range
    • Non-inductive design
    • TO-220 package
    • "Pure Tin Free" for high performance industrial and military applications.
    The resistance element is electrically isolated (>10GΩ) from the heatsink mount tab.  The device can be screw mounted or clipped to the heatsink making the resistor mounting less prone to vibration effects than conventional devices.
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  8. MSR Bare Metal Element Resistor Series

    MSR Bare Metal Element Resistor Series

    The MSR series from Riedon uses a bare metal element in an all-welded construction for through-hole circuit board mounting to provide resistance values from 5mΩ to 100mΩ, while also achieving low inductance (<10nH) and low TCR (±20ppm/°C). MSR resistors are available with a power rating up to 5W and tolerances available down to ±1%.

    • Resistances from 0.005Ω to 0.100Ω
    • Economical bare metal element with all welded construction
    • Tolerances down to ±1%
    • Resistance wire TCR of ±20ppm/°C
    • Low inductance (<10nH)
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  9. MV Series Low Resistance Power Film Resistors

    MV Series Low Resistance Power Film Resistors

    The Caddock MV series of low resistance power film resistors combine Caddock's exclusive non-inductive design with many of the high performance capabilities of the Micronox® resistance films to achieve these advantages over other low Ohm resistors:

    This device has a maximum operating temperature up to ±275°C, which makes it an ideal solution for current sensing in the most demanding of geophysical and aerospace applications.

    • 0.1Ω - 50Ω resistaqnce range
    • Full 1.5W to 10W rating without derating for non-inductive performance.
    • 1% tolerance
    • +275°C operating temperature
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  10. PCR-4T Series Precision Current Sensing Resistor

    PCR-4T Series Precision Current Sensing Resistor

    The  PCR-4T Precision Current Sensing Resistors is designed with Kelvin connections to allow high precision measurements with low resistance values, with excellent long term stability & TCR.

    Manufactured with a non-inductive copper/manganin element, which is encapsulated within a ceramic case and sealed with a cement molding.

    An additional feature of the PCR-4T resistor is a short term overload rating of 2.5 x its maximum rated power for 5 seconds.

    Features:

    • Resistance values of 0.001Ω, 0.00333Ω, 0.005Ω and 0.010Ω available
    • ±0.5%, ±1% and ±5% tolerance options.
    • ±30ppm/°C TCR (+20°C to +60°C)
    More Info
  11. PLC series Manganin® foil resistor 2.5mR to 1R

    PLC series Manganin® foil resistor 2.5mR to 1R

    This device offers a long term stability of <0.5% after 2000h. The foil element has a very low inductance.

    • 2.5mΩ-1Ω
    • 1W
    • 1%,5% tolerance
    • 50ppm/°C TC
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  12. SR10 Series Current Sensing Resistor

    SR10 Series Current Sensing Resistor

    The Caddock SR10 current sense resistors utilize Caddock's Micronox® resistance films to achieve a low cost resistor with non-inductive performance.  The compact construction of the SR10 makes this sense resistor ideal for many current monitoring or control applications.

    Special performance features of the SR10 current sense resistors include:

    • 0.008Ω to 1.00Ω resistance range
    • 1W power rating
    • Choice of ±1% or ±5% tolerance
    • Compact footprint
    • Kelvin terminals for precision voltage measurement
    More Info
  13. SR20 Series Current Sensing Resistor

    SR20 Series Current Sensing Resistor

    The Caddock SR20 current sense resistors utilize Caddock's Micronox® resistance films to achieve a low cost resistor with non-inductive performance.  The compact construction of the SR20 makes this sense resistor ideal for many current monitoring or control applications.

    Special performance features of the SR20 current sense resistors include:

    • 0.005Ω to 1.00Ω resistance range
    • 2W power rating
    • Choice of ±1% or ±5% tolerance
    • Compact footprint
    • Kelvin terminals for precision voltage measurement
    More Info

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