Method of measuring IGBT

(1) Measure 3 feet of IGBT with multimeter RX10kΩ without damping tube. One of them is infinity at the other two feet, this foot is at G, the other two feet are at C and E.

In the test, there are two legs with specific resistance, small resistance such as NPN type pipe, black pen is connected to E, red pen is connected to C. PNP type is the opposite.



(2) Three-electrode measurement with RX10Ω to RX100Ω for attenuation tube measurement. The secondary resistance is hundreds of ohms, the other is thousands of ohms. The two legs are C and E, the resistance is small, the black pen is the E pole, the red stylus is the C pole, and the other foot is the B pole (G pole).



(3) When measuring IGBT modules, it is necessary to measure the resistance between IGBT's CE, CB, and BE using a multimeter RX10Ω matched to the resistance of the attenuation meter. If an IGBT component fails, there may be a short between the collector and the emitter, and the collector and the gate. (Note: When the IGBT operates, the voltage between the gate and the emitter is about 9 V and the emitter is the reference. When using the road measurement method, first cut the corresponding pins to prevent the circuit due to the influence of the circuit You need to make an internal resistance by mistake.



If you want to know more, our website has IGBT product specifications, you can go to Allicdata Electronics Limited to get more information.



IGBT: HGTD1N120BNS9A

IGBT module : IXGN320N60A3