Dual relay board 1/0 control

Any hardware type questions or problems for all other Phidget devices.
cuevision
Phidgetsian
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Re: Dual relay board 1/0 control

Postby cuevision » Thu Mar 15, 2018 8:32 am

Board

DF55BE7A-EE67-4EB4-8ED0-BB179B2FA4B3.jpeg

fraser
Engineering
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Re: Dual relay board 1/0 control

Postby fraser » Thu Mar 15, 2018 10:09 am

I wouldn't bother replacing R1 or C1, I'm sure they're fine.
D1 is a BAV74 dual diode w/ common cathode.

U1 is a TPC6201, but it's obsolete. So use FDC6561AN as a replacement part.

Edit: But if you want to replace C1, it's a 100nF 0603
R1 is a 15K 4-resistor array. Example https://www.digikey.ca/products/en?keywords=EXB-38V153JV

cuevision
Phidgetsian
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Re: Dual relay board 1/0 control

Postby cuevision » Thu Mar 15, 2018 12:10 pm

Thanks Fraser,

Was thinking too about the conensator and the resistant that might not be damaged.

I have ordered the mentioned components. Hope this will repair the boards.

Best regards,
Ed

F8849990-88D1-4660-94D0-2D1EFDB95402.png

cuevision
Phidgetsian
Posts: 14
Joined: Thu Aug 02, 2012 3:26 pm
Contact:

Re: Dual relay board 1/0 control

Postby cuevision » Sat Mar 17, 2018 7:06 am

Hi Phidget team!

I have repaired it and its working again. Replaced U1, the FET mentioned above, which is a very sensitive ESD Device.

Thanks for all and best regards,

Ed


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