SMD code 10UF
Marking codes are not standardised, and the same code is reused by unrelated makers for unrelated parts. Below is every part in our tables printed with it, and any printed with a code that is easy to misread as it, from the manufacturers' own marking tables and published code lists.
10UF is a capacitor marking
10 µF
10 µF capacitor
The value is printed in full: 10 µF. A value this large is usually an electrolytic, which is polarised: on an aluminium can the stripe marks the negative lead, and one fitted backwards can vent.
Check it with a meter
Lift one end and measure it on a capacitance range. A good one reads close to 10 µF. In circuit the meter also sees everything connected across it, so the reading means little until it is out. An electrolytic that has dried out can still read close to its value while its ESR has risen, which only an ESR meter shows. A domed or leaking top means it has failed. A failed reading does not change what to fit: the marking still says 10 µF.
On a transistor or diode body, 10UF is a part code instead. Those parts are listed below.
The only part printed 10UF in our tables
SIP2210DMP-UF-E3
- What it is
- LDO regulator
- Maker
- Vishay
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Linear voltage regulator IC: LDO, Dual out., Vo1/Vo2=3.5V±2%(150mA)/1.5V±2%(300mA), +CE, Error
- Source
- Published code list
Is it dead?
Voltage, board powered, black probe on ground. Then ohms with the power off.
Working, it reads
Input pin at the supply, output pin at its rated voltage, and the enable pin high if it has one.
Dead, it reads
- Output equal to the input: the pass element has shorted. Everything after it may have taken the full input.
- Input present, enable high, no output: failed open, or holding itself off into a shorted load. Power off and measure output to ground.
- Power off, input to output near 0 Ω: shorted.
- On the board:
- An output at 0 V is often a shorted load with the regulator in current limit. Lift the output pin: if the short stays on the board, the regulator may be fine.
- Compare:
- The same regulator on another rail or another board shows the right voltages and the right resistances.
- Watch for:
- Makers put input, output and ground on different pins in the same package, so take them from this part's datasheet. Diode or ohms readings between its pins say little; check it powered.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
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