SMD code S01A
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.
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The only part printed S01A in our tables
LM2660MM
- What it is
- Not recorded
- Maker
- National Semiconductor
- Package
- SOIC-8
- Pins
- 8
- Details
- Switched Capacitor Voltage Converter
- Source
- Published code list
Is it dead?
Ohms range across it, and a capacitance range with it lifted.
Working, it reads
On the ohms range it reads open, or climbs to open as it charges. Lifted, a capacitance range reads close to its value.
Dead, it reads
- Near 0 Ω, or a few ohms: shorted. The usual failure, often from a crack caused by board flex or heat, and it can come and go.
- A steady resistance, kilohms rather than open: cracked and leaking.
- Lifted, far below its value on a capacitance range: cracked open or drifted. Less common than a short, but it happens.
- On the board
- a shorted capacitor shorts its whole rail, so every capacitor on that rail reads the same short. Lift one end, or feed the rail from a current-limited supply and feel which part warms up.
- Compare:
- Chip capacitors are mostly unmarked, so the value comes from the schematic or the same position on a working board.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
Was it this one?
Printed with a code easy to misread as S01A
One character differs, and it is one that is easy to confuse under a lamp. Each code has a page of its own.
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