Q&A Impulse Noise Simulators (Model: INS series)

 

INS (Impulse Noise Simulators) vs FNS (Fast Transient Noise Simulators)

 

Q1.

What are the differences between the Impulse Noise Testing (INS series) and Electrical Fast Transient/Burst (EFT/B) testing (FNS series), which is most widely used in electronics industry?

 

Q2.

Are test results by using the INS series product and FNS (electrical fast transient/burst) series product compatible each other?  

 

   

    

Q1.

What are the differences between the Impulse Noise Testing (INS series) and Electrical Fast Transient/Burst (EFT/B) testing (FNS series), which is most widely used in electronics industry?

 

 

The below table shows the major (important) differences between the two: 

PARAMETER INS (IMPULSE NOISES) FNS(EFT/B NOISE)
Output waveform Rectangular (square) Triangular
Rise times Less than 1ns 5ns
The pulse width 50ns-1000ns 50ns
Output voltages Max. 4000V  Max. 4800V
Repetition frequency Max 100Hz *4 Max 2MHz *5
Frequency components Including high frequency more than 1GHz  400MHz or less
Test mode (To power lines) Common mode / Normal mode  Only common mode
Test mode (To signal lines) Capacitive coupling / magnetic field coupling Capacitive coupling
 
Conforming Standard or Guild line NECA TR-28
JEM-TR177
JEC 0103_2005
Individual industry standards or private standards
IEC61000-4-4
JIS C 61000-4-4
Individual industry standards or private standards
Users Mainly Japanese and other Asian countries  Worldwide

For more details, refer to the document "What is different? Between Impulse Noise and Electrical Fast Transient Burst".

   
Q2.

Are test results by using the INS series product and FNS (electrical fast transient/burst) series product compatible each other?

 

 

The answer is No.  Complementary to the IEC61000-4-4 EFT/Burst test, the NoiseKen INS-series Impulse Noise Simulators with unique valuable features and capabilities, most of which are not met by Electrical Fast Transient/Burst generators, greatly helps to enhance your test program to ensure your products are really immune from real world phenomena. Also refer to Q&A. 1

 

   

 

 

   
   

 

 

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