SMD code P6X
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.
6 parts are printed P6X
Not sure which one you have?
Answer up to 4 quick questions and these 6 parts are ranked, with a meter test that settles it. It works on a dead part too.
BGA3015SOT-89RF amplifier (MMIC), 3 pins, NXPRF amplifier (MMIC)SOT-893 pinsNXP
- What it is
- RF amplifier (MMIC)
- Maker
- NXP
- Package
- SOT-89
- Pins
- 3
- Details
- 1 GHz 15 dB gain wideband amplifier MMIC
- Source
- An older or alternative marking, from a published code list
Is it dead? The meter test is below: RF amplifier.
PMBFJ174SOT-23JFET, 3 pins, PhiJFETSOT-233 pinsPhi
- What it is
- JFET
- Maker
- Phi
- Package
- SOT-23
- Pins
- 3
- Details
- 1 Product profile
- Source
- Published code list
Is it dead? The meter test is below: JFET.
PMBFJ176SOT-23JFET, 3 pins, PhiJFETSOT-233 pinsPhi
- What it is
- JFET
- Maker
- Phi
- Package
- SOT-23
- Pins
- 3
- Details
- 1 Product profile
- Source
- Published code list
Is it dead? The meter test is below: JFET.
S-1701B3026-M5T1SOT-23-55 pins, ABLICNot recordedSOT-23-55 pinsABLIC
- What it is
- Not recorded
- Maker
- ABLIC
- Package
- SOT-23-5
- Pins
- 5
- Details
- CMOS-IC: LDO VR, CE, 3V±1%, 400mA and VDet 2,6V, -Reset ODO
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
S-1701B3026-U5T1SOT-89-55 pins, ABLICNot recordedSOT-89-55 pinsABLIC
- What it is
- Not recorded
- Maker
- ABLIC
- Package
- SOT-89-5
- Pins
- 5
- Details
- CMOS-IC: LDO VR, CE, 3V±1%, 400mA and VDet 2,6V, -Reset ODO
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
1 more part has no package on record
PCA9306GMLogic level translator, 8 pins, NXPLogic level translatorNot recorded8 pinsNXP
- What it is
- Logic level translator
- Maker
- NXP
- Package
- Not recorded
- Pins
- 8
- Details
- 1 General description 2 Features and benefits
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Integrated circuit.
Is it dead? One meter test per kind
Parts of the same kind are tested the same way, so each test is here once. Each part above points to its own.
Integrated circuit
Voltage with the board powered; ohms from each pin to ground with it off.
Working, it reads
Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.
Dead, it reads
- A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
- Supply present, output stuck: failed, or its load has.
- On the board:
- A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
- Compare:
- The surest reference is the same IC on a working board, measured pin by pin.
- Watch for:
- Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
RF amplifier
Voltage, board powered, on the output pin that the bias resistor or choke feeds.
Working, it reads
The output pin sits at the device voltage the datasheet gives, a few volts, below the supply.
Dead, it reads
- Output pin at 0 V, or near 0 Ω to ground with the power off: shorted inside.
- Output pin at the full supply voltage: open inside, no current flowing.
- On the board:
- Measured on the board with power on; the bias network is part of the reading.
- Compare:
- If an identical part sits elsewhere on the board, measure it the same way: that is what this one should read.
- Watch for:
- The figures depend on the part and its bias resistor. The datasheet gives both.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
JFET
Ohms range for drain to source, diode range for the gate, part lifted.
Working, it reads
Drain to source conducts both ways at a few hundred ohms, depending on the part, and some meters beep on it. The gate reads one junction to drain and to source, about 0.6 to 0.7 V, and open the other way.
Dead, it reads
- The gate the same both ways to drain or source, near 0 V with a continuous beep: gate shorted.
- Drain to source open: the channel has failed open.
- 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:
- Drain to source resistance varies from part to part. An identical part elsewhere on the board shows what is normal.
- Watch for:
- A good channel can beep like a short between drain and source. That is normal; the gate junction says whether it has failed.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
Voltage regulator
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.
Printed with a code easy to misread as P6X
One character differs, and it is one that is easy to confuse under a lamp. Each code has a page of its own.
Codes that begin with P6X
For a marking with its end worn or burnt off. Each code has a page of its own.
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