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How to test an LDR.

Datasheet archive on 11-12-2006

The drive must go from MT2 to G. Please research this point and correct the fucking diagram, you retards, instead of wasting peoples time. IIRC the description of the test circuit has an error: Leave a Reply Cancel reply Your email address will not be published. A multimeter can be used to test the health of m10,z47 triac. Yes now it is ok and working Mt2 and Mt1 must be reversed otherwise it is not working I was tried many times I would like to thanks all of you for the tips.

The triac test circuit shown is incorrect and will not work as shown. Testing triac using a multimeter. When you release the push button, you can see the lamp extinguishing.

Selling M10H, M10LZ47, M10LZ52 with M10H, M10LZ47, M10LZ52 Datasheet PDF of these parts.

This circuit is nothing but a simple arrangement to demonstrate the elementary action of a triac. The multimeter will show a high resistance reading open circuit.


Please correct the diagram. MT2 label should be at the top and MT1 label at the bottom datashedt with the gate. If the input is AC or pulsed DC, the lamp stays on while S1 is held closed, and datashheet turns off at the next zero-crossing — i.

If wired that way it will work correctly. I just tested it on an actual part. Are these some other types of triacs, in behaviour or so, than the TIC ones?

Your email address will not be published. How to test a triac. This is another approach for testing a triac. Connect triac to the circuit as shown in circuit diagram and switch S2 ON.

M1PD Datasheet PDF, M1PD

MT1 and MT2 are labelled back to front. Now press the push button switch S1. Thanks for your help!

Eric, MT1 and MT2 have to be reversed, as you say. If the above tests are positive then we can assume that the triac is healthy.

M10LZ47 – Vdrm=800V, Thyristor – Toshiba

Previous post Next post. Now put the selector switch to a low resistance mode, connect daatsheet MT1 and gate to positive lead and MT2 to negative lead. But you cannot trigger the gate by connecting it to the same potential as MT1. Almost all type of triacs can be tested using this circuit.


I agree with the previous comments. The multimeter will now show a low resistance reading indicating the switch ON.

The lamp must glow indicating the switching ON of triac. MT2 should be at the top and MT1 at the bottom, next to the gate G. Datasueet this test is not applicable triacs that require high gate voltage and current for triggering. First put the multimeter selector switch in a high resistance mode say Kthen connect the positive lead satasheet multimeter to the MT1 terminal of triac and negative lead to the MT2 terminal of triac there is no problem if you reverse the connection.

You may also like: I have test this circuit with a TICM triac. If the above tests are positive you can assume that the triac is healthy. Circuit for testing a triac.

Trigger voltage in phase with MT2 at top to allow triac to operate in the first and third quadrants when AC is normally applied. The lamp must not glow. Great step by step instruction. Thanks for pointing out. Wireless mains voltage tester. They are definately different.