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Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets.

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Old 23rd May 2017, 11:34 am   #1
'LIVEWIRE?'
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Question What is a T1235H-L6??

This is a 3-terminal device on a Numatic 208428 Speed Control PCB fitted to a Henry Vacuum Cleaner. In-circuit it reads about 32 ohms both ways round between it's two outer terminals. Is it a Thyristor, Triac, Transistor(Bipolar or FET) or some other type of device? I'll probably replace the control PCB anyway, as these are available for less than £20, but am curious as to the type of device it uses.
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Old 23rd May 2017, 11:55 am   #2
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Default Re: What is a T1235H-L6??

If this is a Triac, it reads 32 ohms each way between one anode and the gate - unless the reading is due to other components on the PCB (all SMD, btw) this cannot be right, surely?
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Old 23rd May 2017, 12:03 pm   #3
ms660
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Default Re: What is a T1235H-L6??

Triac, T135H-6 mentioned in here for vacuum cleaners:


http://www.st.com/content/ccc/resour...CD00198967.pdf

Lawrence.
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Old 23rd May 2017, 1:24 pm   #4
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Default Re: What is a T1235H-L6??

A very useful document, Lawrence. Many thanks. Now I know that the T1235H is a Triac.
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