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Voltage Drop Across High Current TEC Interconnect Cables

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Voltage Drop Across High Current TEC Interconnect Cables

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This ILX Lightwave Technical Note compares the voltage drop across the standard and high-current interconnect cables available from ILX Lightwave, and identifi es where each cable should be used. All ILX current source and TEC interconnect cables are braid shielded, with twisted pair conductors to improve noise immunity. In addition, these cables are designed with mis-matched connector ends (gender and size) to prevent improper connections between the instrument and the device-mounting fi xture.A standard TEC cable and a high-current TEC cable were connected to a corresponding temperature control instrument, and then to a known resistive load. Current was sourced to the load, and the voltage drop across the cable was measured using a typical hand-held multimeter.

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