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Altera_Forum
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17 years ago

Fpga Programmer - Quest For Fuse

Hello, i'm in between a project and stuck with the design of safety of the system. I'm in need of the following fuses, :confused: 15 mA, 3.3V 75 micro-ampere, 3.3V 15 mA...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

What do you exactly mean with safety? If you intend to protect a connected device against damage by overcurrent, any melting fuse is possibly to slow to provide effective protection slow. Fuses down to a mA range are available, but rather expensive. uA fuses don't exist, I think.

Actually, an electronic current limiting would be an appropriate means, but it has to be designed to the circuit, it doesn't work as a simple passive add-on.