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4
votes
2answers
96 views

MAX682 with electrolytic capacitors

In a new design I would like to use the MAX682. In the datasheet I found this typical operating circuit: I would like to use it exactly like that except that I'm going to pull /SKIP to GND. In ...
1
vote
0answers
87 views

Are polymer tantalum capacitors safe for use in new designs?

I want to expand this post to cover polymer tantalum caps. In my application I have an older switching regulator that outputs 24V and needs large output capacitance (220uf), so ceramic or polymer ...
35
votes
3answers
4k views

Are tantalum capacitors safe for use in new designs?

I've heard it suggested that "solid tantalum" capacitors are dangerous and may cause fire, may fail short circuit and are fatally sensitive to even very short over voltage spikes. Are tantalum ...
4
votes
1answer
474 views

Are tantalums good for PIC Vcap?

I understand that ceramics are good at ESR but would like to know if tantalum would suffice for my application. Some 16 bit PICs require a >4.7uf cap (10uf recommended) low ESR cap for their internal ...
7
votes
4answers
753 views

What is this: a dual CAP?

I am trying to figure this cap out and locate a new one. It says 107K and 10K on it. Is is polarized ? what is it and where do i find one ?
5
votes
2answers
2k views

Which type of 100nF capacitor is best for 78xx regulator output?

I use 78L12 or similar voltage regulators in a few power supplies. I use them in their basic setup, see the picture: This diagram is common for all 78xx and 78Lxx regulators. It says that output ...
13
votes
3answers
3k views

Why does the LM1117 data sheet specifically specify tantalum capacitors?

I'm planning on using an LM1117 to regulate 5 V to 3.3 V. Looking at (any of the several) data sheets for the LM1117, they recommend 10 µF tantalum capacitors between input and ground ...
2
votes
1answer
970 views

Replacing Tantalum capacitor?

I'm going to make a PIC programmer, so currently I'm acquiring parts that I'll need. And here's the one part that I can't get: ...
1
vote
3answers
392 views

Voltage rating and tantalum capacitors

I was originally considering using a 10u 6.3V 0603 ceramic capacitor for stabilising the onboard voltage regulator on my microcontrollers. However, it may not be capable because of temperature ...