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Advanced ESS Test Chamber for Reliable Environmental Stress Screening

Key Advantages:

Capacity: 100 to 12,000L 

Temperature Range: -70°C to +180°C 

Temperature Change Rate: 5°C/min  to 25°C/min (optional)

Temperature Fluctuation: < ±0.5°C

Temperature Deviation: < ±2.0°C

Temperature Uniformity: < 2.0°C

Patent No.: CN201920954255.X

Key Specifications:

Serial
number
Capacity ( m3 )0.2450.4081.0 
1 ModelClimatic Test ChamberEATH225-40EATH225-70EATH408-40EATH408-70EATH1000-40EATH1000-70
2Internal Dimension
WxHxD (mm)
700x700x500700x800x7301000x1000x1000
3External Dimension
WxHxD (mm)
900x1680x1300900x1780x15001200x1980x1700
4Temperature Range -40℃ to +180℃ -70℃ to +180℃ -40℃ to +180℃ -70℃ to +180℃ -40℃ to +180℃ -70℃ to +180℃
5Temperature Change Range

-40°C to +85°C -Popuplar range ;

-45°C to +85°C(+125℃);   

-55°C to +85°C(+125℃)-Military level;

6Temperature Fluctuation≤ ± 0.5℃
7Temperature Deviation≤ ± 2.0℃
8Temperature Uniformity≤  2.0℃
9Airflow198L/Sec Cold Fusion260L/Sec Cold Fusion472L/Sec Cold Fusion
10

Heating & Cooling Rate  :Speed with 5℃/min  to 25℃/minutes  for optional ( Hot sales: 5℃/min, 10℃/min,15℃/min,20℃/min

Support:※3 Linear control  with loading  or without loading 

                 ※3  Whole average with loading or without loading          

11Humidity Range (%RH)※2 10%~98% RH
12Humidity Uniformity±1.0 % RH
13Relative Humidity Deviation ≤+2.0% ~ -3%RH (humidity>75%RH)
≤±5.0%RH (humidity≤75%RH)
14Window sizer
WxH(mm)
300x360380x520
15HeatingNoise Level
Heating/Cooling
494949494949
16Cooling656865686768
17Water Supply MethodPump Supply
18Water Tank Capacity ( L )2540
19Power  AC380V; 3 phase 5 lines ; 50/60HZ
22※1 The temperature chambers model is ET-Series

※2 This indicator only applies to the humidity test chamber

 ※3 This is for temperature Rate change should be clear with test sample

Boost Product Reliability with Fast Temp Change chamber!

Opening:

The ESS (Environmental Stress Screening) Test Chamber is engineered to identify latent defects and improve product reliability by exposing electronic components and assemblies to controlled environmental stresses.

With precise temperature, humidity, and vibration control, this chamber accelerates failure mechanisms in a controlled environment, helping engineers catch potential issues before products reach the market.


How ESS Test Chamber Works:

The ESS Test Chamber combines temperature cycling, humidity control, and optional vibration modules to accelerate latent failure mechanisms in electronic devices. By replicating real-world environmental stress conditions in a controlled laboratory setting, manufacturers can detect weak points early in the production process, improving product quality and reliability.


Thermal vs Environmental Stress Testing:


FeatureThermal StressEnvironmental Stress Screening (ESS)
Stress TypeTemperature cyclingTemperature + Humidity + Optional Vibration
ApplicationElectronics, PCBElectronics, Automotive, Aerospace
ObjectiveAccelerate failure mechanismsIdentify latent defects pre-market
StandardJESD22JEDEC, MIL-STD, IEC 60068

 Why Choose TestEQ:

  • Proven experience in high-end ESS solutions

  • Advanced thermal and humidity control technology

  • Stable performance even under continuous testing cycles

  • Custom engineering for aerospace, automotive, and semiconductor standards

  • Energy-efficient and durable design


Optional Configurations:

  • Combined thermal + humidity + vibration modules

  • Multi-zone environmental control

  • Remote monitoring and IoT integration

  • Large custom chamber volumes

  • JEDEC / MIL-STD optimized testing protocols


 FAQ:

Q1: What is an ESS Test Chamber?
A: An ESS Test Chamber is designed to detect latent defects in electronic devices by exposing them to controlled environmental stresses such as temperature, humidity, and vibration.


Q2: How does ESS testing differ from thermal cycling?
A: ESS combines thermal cycling with humidity and sometimes vibration to simulate real-world stress conditions more comprehensively.


Q3: What industries use ESS testing?
A: Semiconductor, automotive, aerospace, defense, battery, and consumer electronics industries.


Q4: What standards does this chamber comply with?
A: JEDEC, MIL-STD-810, IEC 60068, and other global reliability standards.


Q5: How to select the right ESS Test Chamber?
A: Consider temperature/humidity ranges, ramp rates, volume, optional vibration modules, and compliance with applicable industry standards.


Fully Compliant with Major International Test Standards:
The TestEQ Rapid Temperature Change Test Chamber is engineered to meet and exceed the stringent requirements of key industry standards, including:


  • JEDEC Standard JESD22-A104G
    (Temperature Cycling)
    ― Reliably performs high-speed temperature cycling tests for semiconductor and electronic components to evaluate their robustness against thermal fatigue and interconnect failures.


  • MIL-STD
    (Military Standard Environmental Test Methods)
    ― Supports a wide range of defense and aerospace environmental stress screening (ESS) tests, including rapid transition thermal cycling as required by MIL-STD-810 and MIL-STD-883.


  • RTCA/DO-160
    (Environmental Conditions and Test Procedures for Airborne Equipment)
    ― Ideal for validating avionics equipment under extreme temperature variations and rapid transition conditions per Sections 4.0 and 5.0.


Applications:

This ESS Test Chamber is widely used in:

  • Semiconductor & IC testing (JEDEC JESD22 standards)

  • Automotive electronics (ECUs, sensors, control modules)

  • Aerospace & avionics systems (MIL-STD testing)

  • Battery and EV system reliability testing

  • PCB and solder joint fatigue analysis

  • Consumer electronics durability testing


Call To Action:

"Request a custom ESS Test Chamber solution today

Our engineers will help you select the optimal configuration for your reliability and stress screening needs.

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