Electrical Standards Compliance Service

Consulting and Test Services

Mitsubishi Materials can provide surge countermeasures to our customers, especially for the following issues you may be having:


• Your device cannot pass UL standards during development.
• Your device has been damaged by lightning and you'd like to prevent it in the future.

Because every variation and model can have different characteristics, it's important to perform surge tests on your actual PCBs.

At the Mitsubishi Materials Ceramics Factory our engineers can perform surge tests on your devices and suggest surge countermeasures with or without you in attendance. After completing the test we can send a detailed report on how to best prevent surges from affecting your device and quickly return your unit.

We can model the testing on many standards, including IEC61000-4-2, IEC61000-4-5, JEC, JIS, UL, ITU-T, and customer-specific tests.

Please contact our sales representative with any questions.


Surge Testing Service Flow

Test   Wave form Comments
Lightning surge test IEC61000-4-5 Electromagnetic compatibility (EMC) - Part 4-5:
testing and measurement techniques - surge immunity test

● Combination wave
1.2/50μs ~15kV

8/20μs ~7.5kA
10/700μs ~15kV

JEC 0202   ● Voltage wave
1.2/50μs ~12kV
● Electric current wave
8/20μs ~2.4kA
● Electric current wave
8/20μs ~20kA
4/10μs ~50kA
ITU-T K.20 Ability to resist overvoltage and overcurrent in telecommunication equipment at customer premises
● Voltage Wave
10/700μs 〜15kV
ITU-T K.21 Ability to resist overvoltage and overcurrent in telecommunication equipment at customer premises
(FCC Part68)
Technical requirements to connect to the telephone network ● Voltage wave
10/560μs ~800V 100A
10/160μs ~1.5kV 200A
2/10μs ~2.5kV 1kA
ITU-T K.44
(ITU-T K.17)
Tests on powered repeaters on solid-state devices to confirm protection from external interference ● Voltage wave
0.5/700μs ~6kV
10/700μs ~5kV
100/700μs ~5kV
IEC61643-311 Components for low-voltage surge protective devices - Part 311:
Specification for Gas Discharge Tubes (GDTs)
● Electric current wave
Static electricity test IEC61000-4-2 Electromagnetic compatibility (EMC) - Part 4-2:
Testing and measurement techniques - electrostatic discharge immunity test
● ESD wave maximum voltage applied: 〜30kV
C Unit: 100p〜500pF
Arc resistance: 150Ω〜10kΩ
ISO10605 Road vehicle testing for affect of electrostatic discharge (British standard)
JASO D001 General rules for environmental testing for automotive electronic equipment
JASO D010 Road vehicles and automotive parts - electrical disturbances from electrostatic discharges
Lightning tolerance level IEEE std.
Surge voltage in low voltage AC power circuits ● Linking surge wave
0.5μ 〜100kHz 6kVmax
Noise simulation JEC 0103   ● Pulse voltage wave maximum voltage applied: 4kV
Pulse amplitude: 50ns〜1,000ns
cycle: 10ms〜999ms
Fast transient vast test IEC61000-4-4

Electromagnetic compatibility (EMC) - part 4-4:
Testing and measurement techniques - fast transient/burst immunity test

● Fast immunity test
1) Pulse repetition: 2.5kHz〜5KHz
Fast duration: 8msec〜30msec
Fast repetition: 150msec〜600msec
2) Fast repetition: 10KHz
Fast duration: 8msec〜65msec
Fast repetition: 300msec〜600msec

others UL497A Secondary protectors for communications circuits ● Excessive voltage test 〜AC600V
* Other standard excessive voltage tests supported
others   ● Voltage Wave

Please inquire for other tests.

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