SMD code 1042V
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.
1042V is a capacitor marking
100 nF, 2 V
100 nF capacitor, 2 V
10 followed by the multiplier 4, in picofarads: 100 nF. Printed this way on film and larger ceramic capacitors; small chip ceramics are usually not printed at all. 2 V is the rated voltage.
Check it with a meter
Lift one end and measure it on a capacitance range. A good one reads close to 100 nF. In circuit the meter also sees everything connected across it, so the reading means little until it is out. A failed one usually reads near 0 Ω, or a steady low resistance, on the ohms range, often from a crack. On the board a shorted capacitor shorts its whole rail. A failed reading does not change what to fit: the marking still says 100 nF, 2 V. Fit the same capacitance at the same or a higher voltage.
On a transistor or diode body (DFN), 1042V is a part code instead. Those parts are listed below.
The only part printed 1042V in our tables
TPT1042V-DF6R-S
- What it is
- Not recorded
- Maker
- 3PEAK
- Package
- DFN
- Pins
- 8
- Details
- Fault Protected High-Speed CAN FD Transceiver with Standby
- Source
- Manufacturer datasheet
Is it dead?
Diode range and ohms range, part lifted.
Working, it reads
Depends on what it is. The datasheet, or an identical part, says.
Dead, it reads
- Between two pins, the same reading both ways, near 0 V with a continuous beep: shorted.
- Open between every pair of pins: failed open, or a part that reads open when working.
- On the board
- this is a first look only: the meter reads every path between those pins, and a short can be a neighbour. Lift one leg before you condemn it.
- Compare:
- If an identical part sits elsewhere on the board, measure it the same way: that is what this one should read.
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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