Specification
Details
Resistance Range
10–1 kΩ (Other resistance values can be negotiated.)
Resistance Tolerance
±5% ~ ±10%
Temperature Coefficient
±25 ppm/°C (25°C~85°C)<br>(Other temperature coefficient requirements can be negotiated.)
Thermal Capacity
ECP52/14: 0.03 kJ/°C<br>ECP52/18: 0.05 kJ/°C<br>ECP72/25: 0.13 kJ/°C
Maximum Impulse Voltage
1500 V (Exceeding this value requires negotiation.)
Rated Power
ECP52/14: 25 W<br>ECP52/18: 35 W<br>ECP72/25: 50 W
Lead Terminal Installation
M4 screws, maximum torque 3 Nm.
Power vs. Environmental Temperature (%)

Ordering Example

Model
Resistance Value
Tolerance
ECP72/25
50 Ω
5%
Dimensional Specifications
Model
Power at 70°C (W)
Time Constant = 0.5S
Dimensions (mm/inches)
A
ECP52/14
25
E = 1700 J
52.0 ±0.02
ECP52/18
35
E = 2200 J
52.0 ±0.02
ECP72/25
50
E = 5600 J
72.0 ±0.02

Application Cases

  1. Variable Frequency Drives (VFDs) :
  2. Electric Motor Control Systems :
  3. Power Supply Pre-Charging Circuits :
  4. Inductive Load Protection :
  5. Railway and Transportation Systems :
  6. Industrial Automation Equipment :

Conclusion

This high-power pulse energy absorption resistor offers robust performance in demanding applications, combining high thermal capacity, precise tolerance, and reliable pulse load handling. Its compact design and compatibility with various operating conditions make it an essential component in modern electronic systems. Whether in industrial, automotive, or aerospace applications, this resistor ensures efficient energy management and system reliability.

Specification
Details
Resistance Range
10–1 kΩ (Other resistance values can be negotiated.)
Resistance Tolerance
±5% ~ ±10%
Temperature Coefficient
±25 ppm/°C (25°C~85°C)<br>(Other temperature coefficient requirements can be negotiated.)
Thermal Capacity
ECP52/14: 0.03 kJ/°C<br>ECP52/18: 0.05 kJ/°C<br>ECP72/25: 0.13 kJ/°C
Maximum Impulse Voltage
1500 V (Exceeding this value requires negotiation.)
Rated Power
ECP52/14: 25 W<br>ECP52/18: 35 W<br>ECP72/25: 50 W
Lead Terminal Installation
M4 screws, maximum torque 3 Nm.
Power vs. Environmental Temperature (%)

Ordering Example

Model
Resistance Value
Tolerance
ECP72/25
50 Ω
5%
Dimensional Specifications
Model
Power at 70°C (W)
Time Constant = 0.5S
Dimensions (mm/inches)
A
ECP52/14
25
E = 1700 J
52.0 ±0.02
ECP52/18
35
E = 2200 J
52.0 ±0.02
ECP72/25
50
E = 5600 J
72.0 ±0.02

Application Cases

  1. Variable Frequency Drives (VFDs) :
  2. Electric Motor Control Systems :
  3. Power Supply Pre-Charging Circuits :
  4. Inductive Load Protection :
  5. Railway and Transportation Systems :
  6. Industrial Automation Equipment :

Conclusion

This high-power pulse energy absorption resistor offers robust performance in demanding applications, combining high thermal capacity, precise tolerance, and reliable pulse load handling. Its compact design and compatibility with various operating conditions make it an essential component in modern electronic systems. Whether in industrial, automotive, or aerospace applications, this resistor ensures efficient energy management and system reliability.

Specification
Details
Resistance Range
10–1 kΩ (Other resistance values can be negotiated.)
Resistance Tolerance
±5% ~ ±10%
Temperature Coefficient
±25 ppm/°C (25°C~85°C)<br>(Other temperature coefficient requirements can be negotiated.)
Thermal Capacity
ECP52/14: 0.03 kJ/°C<br>ECP52/18: 0.05 kJ/°C<br>ECP72/25: 0.13 kJ/°C
Maximum Impulse Voltage
1500 V (Exceeding this value requires negotiation.)
Rated Power
ECP52/14: 25 W<br>ECP52/18: 35 W<br>ECP72/25: 50 W
Lead Terminal Installation
M4 screws, maximum torque 3 Nm.
Power vs. Environmental Temperature (%)

Ordering Example

Model
Resistance Value
Tolerance
ECP72/25
50 Ω
5%
Dimensional Specifications
Model
Power at 70°C (W)
Time Constant = 0.5S
Dimensions (mm/inches)
A
ECP52/14
25
E = 1700 J
52.0 ±0.02
ECP52/18
35
E = 2200 J
52.0 ±0.02
ECP72/25
50
E = 5600 J
72.0 ±0.02

Application Cases

  1. Variable Frequency Drives (VFDs) :
  2. Electric Motor Control Systems :
  3. Power Supply Pre-Charging Circuits :
  4. Inductive Load Protection :
  5. Railway and Transportation Systems :
  6. Industrial Automation Equipment :

Conclusion

This high-power pulse energy absorption resistor offers robust performance in demanding applications, combining high thermal capacity, precise tolerance, and reliable pulse load handling. Its compact design and compatibility with various operating conditions make it an essential component in modern electronic systems. Whether in industrial, automotive, or aerospace applications, this resistor ensures efficient energy management and system reliability.

EAK Resistors logo Resistors
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Ultra High Power Resistors

High-Power Pulse Energy Absorption Resistor

<table class="w-full max-w-full table-auto rounded-xl text-left text-sm text-gray-500 dark:text-gray-400" style="color: #333333; font-size: 16px;"> <thead class="border-none bg-gray-50 text-xs uppercase text-gray-700 dark:bg-gray-850 dark:text-gray-400"> <tr class=""> <th class="cursor-pointer select-none border border-gray-50 !px-2 !py-1.5 dark:border-gray-850" scope="col"> <div class="flex items-center gap-1.5"><strong>Specification</strong></div></th> <th class="cursor-pointer select-none border border-gray-50 !px-2 !py-1.5 dark:border-gray-850" scope="col"> <div class="flex items-center gap-1.5"><strong>Details</strong></div></th> </tr> </thead> <tbody> <tr class="bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex"><strong>Resistance Range</strong></div></td> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">10–1 kΩ (Other resistance values can be negotiated.)</div></td> </tr> <tr class="bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex"><strong>Resistance Tolerance</strong></div></td> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">±5% ~ ±10%</div></td> </tr> <tr class="bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex"><strong>Temperature Coefficient</strong></div></td> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">±25 ppm/°C (25°C~85°C)&lt;br&gt;(Other temperature coefficient requirements can be negotiated.)</div></td> </tr> <tr class="bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex"><strong>Thermal Capacity</strong></div></td> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">ECP52/14: 0.03 kJ/°C&lt;br&gt;ECP52/18: 0.05 kJ/°C&lt;br&gt;ECP72/25: 0.13 kJ/°C</div></td> </tr> <tr class="bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex"><strong>Maximum Impulse Voltage</strong></div></td> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">1500 V (Exceeding this value requires negotiation.)</div></td> </tr> <tr class="bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex"><strong>Rated Power</strong></div></td> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">ECP52/14: 25 W&lt;br&gt;ECP52/18: 35 W&lt;br&gt;ECP72/25: 50 W</div></td> </tr> <tr class="bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex"><strong>Lead Terminal Installation</strong></div></td> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">M4 screws, maximum torque 3 Nm.</div></td> </tr> </tbody> </table> <div class="group relative w-full"> <div class="invisible absolute right-1.5 top-1 z-20 group-hover:visible"> <div class="flex" aria-label="导出到 CSV"><strong style="color: #1b1919; font-size: 22px;">Power vs. Environmental Temperature (%)</strong></div> </div> </div> <ul> <li><strong>Description </strong>: The graph illustrates the relationship between environmental temperature and power percentage. As the temperature increases, the power handling capability decreases linearly.</li> </ul> <div class="my-2"></div> <hr /> <h3><strong>Ordering Example</strong></h3> <div class="group relative w-full"> <div class="scrollbar-hidden relative max-w-full overflow-x-auto whitespace-nowrap rounded-lg"> <table class="w-full max-w-full table-auto rounded-xl text-left text-sm text-gray-500 dark:text-gray-400"> <thead class="border-none bg-gray-50 text-xs uppercase text-gray-700 dark:bg-gray-850 dark:text-gray-400"> <tr class=""> <th class="cursor-pointer select-none border border-gray-50 !px-2 !py-1.5 dark:border-gray-850" scope="col"> <div class="flex items-center gap-1.5"><strong>Model</strong></div></th> <th class="cursor-pointer select-none border border-gray-50 !px-2 !py-1.5 dark:border-gray-850" scope="col"> <div class="flex items-center gap-1.5"><strong>Resistance Value</strong></div></th> <th class="cursor-pointer select-none border border-gray-50 !px-2 !py-1.5 dark:border-gray-850" scope="col"> <div class="flex items-center gap-1.5"><strong>Tolerance</strong></div></th> </tr> </thead> <tbody> <tr class="bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">ECP72/25</div></td> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">50 Ω</div></td> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">5%</div></td> </tr> </tbody> </table> </div> <div class="invisible absolute right-1.5 top-1 z-20 group-hover:visible"> <div aria-label="导出到 CSV"></div> <div class="flex" aria-label="导出到 CSV"><strong style="color: #1b1919; font-size: 22px;">Dimensional Specifications</strong></div> </div> </div> <div class="group relative w-full"> <div class="scrollbar-hidden relative max-w-full overflow-x-auto whitespace-nowrap rounded-lg"> <table class="w-full max-w-full table-auto rounded-xl text-left text-sm text-gray-500 dark:text-gray-400"> <thead class="border-none bg-gray-50 text-xs uppercase text-gray-700 dark:bg-gray-850 dark:text-gray-400"> <tr class=""> <th class="cursor-pointer select-none border border-gray-50 !px-2 !py-1.5 dark:border-gray-850" scope="col"> <div class="flex items-center gap-1.5"><strong>Model</strong></div></th> <th class="cursor-pointer select-none border border-gray-50 !px-2 !py-1.5 dark:border-gray-850" scope="col"> <div class="flex items-center gap-1.5"><strong>Power at 70°C (W)</strong></div></th> <th class="cursor-pointer select-none border border-gray-50 !px-2 !py-1.5 dark:border-gray-850" scope="col"> <div class="flex items-center gap-1.5"><strong>Time Constant = 0.5S</strong></div></th> <th class="cursor-pointer select-none border border-gray-50 !px-2 !py-1.5 dark:border-gray-850" scope="col"> <div class="flex items-center gap-1.5"><strong>Dimensions (mm/inches)</strong></div></th> </tr> </thead> <tbody> <tr class="bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex"></div></td> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex"></div></td> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex"></div></td> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex"><strong>A</strong></div></td> </tr> <tr class="bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">ECP52/14</div></td> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">25</div></td> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">E = 1700 J</div></td> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">52.0 ±0.02</div></td> </tr> <tr class="bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">ECP52/18</div></td> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">35</div></td> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">E = 2200 J</div></td> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">52.0 ±0.02</div></td> </tr> <tr class="bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">ECP72/25</div></td> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">50</div></td> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">E = 5600 J</div></td> <td class="w-max border border-gray-50 !px-2 !py-1.5 font-medium text-gray-900 dark:border-gray-850 dark:text-white"> <div class="flex">72.0 ±0.02</div></td> </tr> </tbody> </table> </div> <div class="invisible absolute right-1.5 top-1 z-20 group-hover:visible"> <div class="flex" aria-label="导出到 CSV"></div> </div> </div> <h3><strong>Application Cases</strong></h3> <ol start="1"> <li><strong>Variable Frequency Drives (VFDs) </strong>: <ul> <li>In VFDs, these resistors are used for motor braking to dissipate kinetic energy efficiently. They help prevent overvoltage and ensure smooth operation.</li> </ul> </li> <li><strong>Electric Motor Control Systems </strong>: <ul> <li>For industrial machinery, these resistors are employed in control circuits to manage sudden load changes and protect sensitive components from voltage spikes.</li> </ul> </li> <li><strong>Power Supply Pre-Charging Circuits </strong>: <ul> <li>In high-voltage power supplies, these resistors are used to absorb surge currents during the pre-charging phase, ensuring safe and controlled startup.</li> </ul> </li> <li><strong>Inductive Load Protection </strong>: <ul> <li>When dealing with inductive loads, such as solenoids or relays, these resistors help dissipate stored energy, preventing damage to downstream components.</li> </ul> </li> <li><strong>Railway and Transportation Systems </strong>: <ul> <li>In railway traction systems, these resistors are used for regenerative braking, where they absorb and dissipate the kinetic energy of moving trains, converting it into heat.</li> </ul> </li> <li><strong>Industrial Automation Equipment </strong>: <ul> <li>These resistors are integrated into automation systems to handle high-energy pulses generated by actuators and other electromechanical devices.</li> </ul> </li> </ol> <h3><strong>Conclusion</strong></h3> <p data-spm-anchor-id="a2ty_o01.29997173.0.i18.1493c921xr1jqT">This high-power pulse energy absorption resistor offers robust performance in demanding applications, combining high thermal capacity, precise tolerance, and reliable pulse load handling. Its compact design and compatibility with various operating conditions make it an essential component in modern electronic systems. Whether in industrial, automotive, or aerospace applications, this resistor ensures efficient energy management and system reliability.</p>

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Category: Ultra High Power Resistors

Description Specifications

This resistor is designed for applications requiring high-power pulse energy absorption, such as in circuits that need to handle large transient energy spikes. It is particularly suitable for use in environments where forced air cooling is not available or where natural convection cooling is preferred. The product is ideal for scenarios such as:

  • Motor Braking : Used in variable frequency drives (VFDs) and electric motors for regenerative braking.
  • Pre-Charging Circuits : Employed in power supplies to absorb surge currents during pre-charging processes.
  • Energy Dissipation : Utilized in systems that require rapid dissipation of stored energy, such as inductive loads.

Technical Features

  1. Pulse Energy Absorption Capability :
    • The resistor utilizes an RC feedback circuit to perform pulse energy absorption testing. Specific parameters are listed in the table below.
  2. Special Exterior Structure :
    • Material : Thick-film cylindrical ceramic substrate with excellent thermal conductivity.
    • Design : One end is connected to a brass flange terminal, featuring an M4 screw hole for lead-out and secure mounting.
    • Advantages : Compact size, high temperature resistance, and stable performance under high-energy conditions.
  3. Excellent Pulse Load Capacity :
    • Designed to withstand repeated high-energy pulses without degradation in performance.
  4. Material Compliance :
    • The material has passed UL94 V0 flammability testing, ensuring safety and reliability in demanding applications.

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