• Specifications

    Parameter
    Description
    Resistance Range
    Refer to the table below.
    Tolerance
    ±10% ~ ±20% (Other tolerances available upon request).
    Temperature Coefficient
    -500ppm/°C ~ -1500ppm/°C (Other temperature coefficients available upon request).
    Thermal Expansion Coefficient
    ~5-15ppm/°C
    Rated Power
    Refer to the table below.
    Maximum Working Voltage
    50Hz AC, rms:2.4×(1.8R/t)0.3
    Maximum Pulse Voltage

  • Specifications

    Parameter
    Description
    Resistance Range
    Refer to the table below.
    Tolerance
    ±10% ~ ±20% (Other tolerances available upon request).
    Temperature Coefficient
    -500ppm/°C ~ -1500ppm/°C (Other temperature coefficients available upon request).
    Thermal Expansion Coefficient
    ~5-15ppm/°C
    Rated Power
    Refer to the table below.
    Maximum Working Voltage
    50Hz AC, rms:2.4×(1.8R/t)0.3
    Maximum Pulse Voltage

  • Specifications

    Parameter
    Description
    Resistance Range
    Refer to the table below.
    Tolerance
    ±10% ~ ±20% (Other tolerances available upon request).
    Temperature Coefficient
    -500ppm/°C ~ -1500ppm/°C (Other temperature coefficients available upon request).
    Thermal Expansion Coefficient
    ~5-15ppm/°C
    Rated Power
    Refer to the table below.
    Maximum Working Voltage
    50Hz AC, rms:2.4×(1.8R/t)0.3
    Maximum Pulse Voltage
    • EAK Resistors logo Resistors
    8099d217852ffc9714ef0fb4beebe44
    Ceramic Composition Resistors

    PCB Energy Absorption Resistor

    <ul> <li data-spm-anchor-id="a2ty_o01.29997173.0.i5.11fec921pCf1Ie"> <h4 data-spm-anchor-id="a2ty_o01.29997173.0.i6.11fec921pCf1Ie">Specifications</h4> <div class="qwen-markdown-table-wrap qwen-markdown-table-wrap-pc group relative w-full"> <div class="scrollbar-hidden relative max-w-full overflow-x-auto whitespace-nowrap rounded-lg"> <table class="qwen-markdown-table w-full max-w-full table-auto rounded-xl text-left text-sm text-gray-500 dark:text-gray-400"> <thead class="qwen-markdown-table-thead border-none bg-gray-50 text-xs uppercase text-gray-700 dark:bg-gray-850 dark:text-gray-400"> <tr class="qwen-markdown-table-thead-tr"> <th class="qwen-markdown-table-thead-tr-th cursor-pointer select-none border border-gray-50 dark:border-gray-850" scope="col"> <div class="qwen-markdown-table-thead-tr-th-col flex items-center gap-1.5">Parameter</div></th> <th class="qwen-markdown-table-thead-tr-th cursor-pointer select-none border border-gray-50 dark:border-gray-850" scope="col"> <div class="qwen-markdown-table-thead-tr-th-col flex items-center gap-1.5">Description</div></th> </tr> </thead> <tbody class="qwen-markdown-table-tbody"> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]">Resistance Range</div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]">Refer to the table below.</div></td> </tr> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]">Tolerance</div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]">±10% ~ ±20% (Other tolerances available upon request).</div></td> </tr> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]">Temperature Coefficient</div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]">-500ppm/°C ~ -1500ppm/°C (Other temperature coefficients available upon request).</div></td> </tr> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]">Thermal Expansion Coefficient</div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]">~5-15ppm/°C</div></td> </tr> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]">Rated Power</div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]">Refer to the table below.</div></td> </tr> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]">Maximum Working Voltage</div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]">50Hz AC, rms:<span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">2.4</span><span class="mbin">×</span></span><span class="base"><span class="mopen">(</span><span class="mord">1.8</span><span class="mord mathnormal">R</span><span class="mord">/</span><span class="mord mathnormal">t</span><span class="mclose">)<span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist"><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">0.3</span></span></span></span></span></span></span></span></span></span></div></td> </tr> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]">Maximum Pulse Voltage</div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"></div></td> </tr> </tbody> </table> </div> <div class="qwen-markdown-table-thead-tool invisible group-hover:visible"> <div class="flex" aria-label="导出到 CSV"></div> </div> </div> <ul> <li>1.2/50μs pulse: <span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">1.26</span><span class="mord mathnormal">R</span><span class="mbin">×</span></span><span class="base"><span class="mopen">(</span><span class="mord">−</span><span class="mord">1</span><span class="mbin">+</span></span><span class="base"><span class="mord sqrt"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist"><span class="svg-align"><span class="mord">1<span class="mbin">+</span>33/<span class="mord mathnormal">R</span></span></span></span><span class="vlist-s">​</span></span></span></span><span class="mclose">)</span></span></span></span></li> <li>10/1000μs pulse: <span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">0.0627</span><span class="mord mathnormal">R</span><span class="mbin">×</span></span><span class="base"><span class="mopen">(</span><span class="mord">−</span><span class="mord">1</span><span class="mbin">+</span></span><span class="base"><span class="mord sqrt"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist"><span class="svg-align"><span class="mord">1<span class="mbin">+</span>658/<span class="mord mathnormal">R</span></span></span></span><span class="vlist-s">​</span></span></span></span><span class="mclose">)</span></span></span></span></li> <li>500/5000μs pulse: <span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">0.0126</span><span class="mord mathnormal">R</span><span class="mbin">×</span></span><span class="base"><span class="mopen">(</span><span class="mord">−</span><span class="mord">1</span><span class="mbin">+</span></span><span class="base"><span class="mord sqrt"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist"><span class="svg-align"><span class="mord">1<span class="mbin">+</span>3288/<span class="mord mathnormal">R</span></span></span></span><span class="vlist-s">​</span></span></span></span><span class="mclose">)</span></span></span></span> | | Maximum Operating Temperature | 150°C (continuous), 200°C (non-continuous) | | Thermal Time Constant | <span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord mathnormal">t</span><span class="mrel">=</span></span><span class="base"><span class="mord">4Γ</span></span></span></span> where <span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">Γ</span><span class="mrel">=</span></span><span class="base"><span class="mord"><span class="mord mathnormal">E</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist"><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord text mtight">max</span></span></span></span><span class="vlist-s">​</span></span></span></span></span><span class="mopen">(</span><span class="mord">2</span><span class="mord">5<span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist"><span class="sizing reset-size6 size3 mtight"><span class="mbin mtight">∘</span></span></span></span></span></span></span><span class="mord mathnormal">C</span><span class="mclose">)</span><span class="mord">/</span><span class="mord"><span class="mord mathnormal">W</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist"><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord text mtight">max</span></span></span></span><span class="vlist-s">​</span></span></span></span></span><span class="mopen">(</span><span class="mord">2</span><span class="mord">5<span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist"><span class="sizing reset-size6 size3 mtight"><span class="mbin mtight">∘</span></span></span></span></span></span></span><span class="mord mathnormal">C</span><span class="mclose">)</span></span></span></span> | <h3>Application Cases</h3> <ol start="1"> <li><strong>Power Transmission Systems </strong>: <ul> <li>In high-voltage power systems, these resistors can be used to suppress voltage surges caused by switching operations or lightning strikes. Their ability to handle high-energy pulses makes them ideal for protecting sensitive components.</li> </ul> </li> <li><strong>Electric Traction Applications </strong>: <ul> <li>In railway systems, these resistors are used in regenerative braking circuits to dissipate excess energy generated during braking. Their compact size and high pulse load capacity make them suitable for space-constrained environments.</li> </ul> </li> <li><strong>Pulse Power Sources </strong>: <ul> <li>For laser systems or radar equipment, these resistors can absorb and dissipate high-energy pulses efficiently. Their low inductance ensures minimal interference with high-frequency signals.</li> </ul> </li> <li><strong>Induction Heating Equipment </strong>: <ul> <li data-spm-anchor-id="a2ty_o01.29997173.0.i9.11fec921pCf1Ie">In industrial heating applications, these resistors help manage thermal runaway conditions by absorbing sudden energy spikes. Their robust construction ensures reliability under harsh operating conditions.</li> </ul> </li> </ol> </li> </ul> </li> </ul>

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    Category: Ceramic Composition Resistors

    Description Specifications

    The PCB energy absorption resistor is a specialized component designed for high-frequency applications. It is made from inorganic materials such as graphite and Al₂O₃, which are sintered at high temperatures to form a solid core. The resistive element uses a semiconductor mechanism, ensuring low inductance suitable for high-frequency use. The surface is encapsulated with epoxy resin, providing excellent moisture resistance and sealing properties. This resistor can absorb random strong pulse energy release within a short time, making it ideal for applications such as power transmission, electric traction, pulse power sources, and induction heating.

    Technical Features

    • Low Inductance : Suitable for high-frequency applications with negligible parasitic inductance.

    • PCB Plug-in Design : Easy installation and integration into printed circuit boards.

    • Compact Size : Space-saving design for efficient board layout.

    • High Pulse Load Capacity : Capable of handling large transient energy spikes.

    • Physical Technical Parameters and Dimensions

      • Encapsulation : High-temperature epoxy resin coating ensures a smooth, hard surface with good appearance. Over long-term operation at temperatures above 150°C, the surface coating may undergo minor decomposition or color changes, but this will not affect the resistance performance.
      • Terminals : The resistor terminals are treated with tin plating on the end face, followed by high-temperature soldering with brass-plated copper leads, ensuring excellent electrical performance.
      • Soldering : The terminals feature a spring design, with each resistor fixed at four points. This design simplifies PCB assembly and provides stable connections. Recommended mounting hole diameters are 2mm to 3mm. Solder with a melting point below 230°C is recommended for optimal results.

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