SMD code P7A

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.

12 parts are printed P7A

Not sure which one you have?

Answer up to 4 quick questions and these 12 parts are ranked, with a meter test that settles it. It works on a dead part too.

IXD5108N47AMRSOT-23-5Voltage supervisor, 5 pins, IXYSVoltage supervisorSOT-23-55 pinsIXYS
What it is
Voltage supervisor
Maker
IXYS
Package
SOT-23-5
Pins
5
Details
Voltage detector IC: 4.7V±2%, Hst, -Reset ODO, Cd
Source
Published code list
Is it dead? The meter test is below: Integrated circuit.
IXD5118C37AMR-GSOT-23-5Voltage supervisor, 5 pins, IXYSVoltage supervisorSOT-23-55 pinsIXYS
What it is
Voltage supervisor
Maker
IXYS
Package
SOT-23-5
Pins
5
Details
Voltage detector IC: 3.7V±2%, ±Reset PPO, Sense, Hst 5%, Cd
Source
Published code list
Is it dead? The meter test is below: Integrated circuit.
PDTA144TUSOT-3233 pins, NXPNot recordedSOT-3233 pinsNXP
What it is
Not recorded
Maker
NXP
Package
SOT-323
Pins
3
Details
equivalent PDTA144TS
Source
Published code list
Is it dead? The meter test is below: This part.
PESD3V3S2UATSOT-23ESD protection diode, 3 pins, NexperiaESD protection diodeSOT-233 pinsNexperia
What it is
ESD protection diode
Maker
Nexperia
Package
SOT-23
Pins
3
Details
Double ESD protection diode in SOT23 package
Source
An older or alternative marking, from a published code list
Is it dead? The meter test is below: TVS or ESD protection diode.
Datasheetfor PESD3V3S2UAT, opens in a new tab
XC6108N47AMRSOT-23-5Voltage supervisor, 5 pins, TorexVoltage supervisorSOT-23-55 pinsTorex
What it is
Voltage supervisor
Maker
Torex
Package
SOT-23-5
Pins
5
Details
CMOS-IC: Voltage Detector 4,7V, 5%, Hst, -Reset Open drain output
Source
Published code list
Is it dead? The meter test is below: Integrated circuit.
XC6118C37AMR-GSOT-23-5Voltage supervisor, 5 pins, TorexVoltage supervisorSOT-23-55 pinsTorex
What it is
Voltage supervisor
Maker
Torex
Package
SOT-23-5
Pins
5
Details
Voltage detector IC: 3.7V±2%, ±Reset PPO, Sense, Hst 5%, Cd
Source
Published code list
Is it dead? The meter test is below: Integrated circuit.
XC9147D48CER-GUSP-6CDC-DC converter, 6 pins, TorexDC-DC converterUSP-6C6 pinsTorex
What it is
DC-DC converter
Maker
Torex
Package
USP-6C
Pins
6
Details
DC/DC voltage converter IC: PWM st-up, 1.2MHz, 4.8V±2%, 1.4A, CrLL, ShPr, CL, +CE
Source
Published code list
Is it dead? The meter test is below: Integrated circuit.
XC9147D48CPR-GSOT-89-5DC-DC converter, 5 pins, TorexDC-DC converterSOT-89-55 pinsTorex
What it is
DC-DC converter
Maker
Torex
Package
SOT-89-5
Pins
5
Details
DC/DC voltage converter IC: PWM step-up, 1.2MHz, 4.8V±2%, 1.4A, CrLL, ShPr, CL, +CE
Source
Published code list
Is it dead? The meter test is below: Integrated circuit.
4 more parts have no package on record
- IXD5108N47AGRVoltage supervisor, IXYSVoltage supervisorNot recordedNot recordedIXYS
  What it is
  Voltage supervisor
  Maker
  IXYS
  Package
  Not recorded
  Pins
  Not recorded
  Details
  Voltage detector IC: 4.7V±2%, Hst., -Reset ODO, Cd
  Source
  Published code list
  Is it dead? The meter test is below: Integrated circuit.
- IXD5118C37AGR-GVoltage supervisor, IXYSVoltage supervisorNot recordedNot recordedIXYS
  What it is
  Voltage supervisor
  Maker
  IXYS
  Package
  Not recorded
  Pins
  Not recorded
  Details
  Voltage detector IC: 3.7V±2%, ±Reset PPO, Sense, Hst. 5%, Cd
  Source
  Published code list
  Is it dead? The meter test is below: Integrated circuit.
- XC6108N47AGRVoltage supervisor, TorexVoltage supervisorNot recordedNot recordedTorex
  What it is
  Voltage supervisor
  Maker
  Torex
  Package
  Not recorded
  Pins
  Not recorded
  Details
  CMOS-IC: Voltage Detector 4,7V5%, Hst, -Reset Open drain output
  Source
  Published code list
  Is it dead? The meter test is below: Integrated circuit.
- XC6118C37AGR-GVoltage supervisor, TorexVoltage supervisorNot recordedNot recordedTorex
  What it is
  Voltage supervisor
  Maker
  Torex
  Package
  Not recorded
  Pins
  Not recorded
  Details
  Voltage detector IC: 3.7V±2%, ±Reset PPO, Sense, Hst. 5%, Cd
  Source
  Published code list
  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.

This part

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.

TVS or ESD protection diode

Diode range, from the protected line to ground, part lifted if you can.

Working, it reads

A one-way part reads about 0.6 to 0.8 V forward and open in reverse. A two-way part reads open both ways. Arrays with several lines read as the datasheet's diagram draws them.

Dead, it reads

From the line to ground, the same reading both ways, near 0 V with a continuous beep: shorted.
A reading both ways on a one-way part: leaky.
A one-way part open both ways: failed open.

On the board: , a line reading shorted to ground can be this part or anything else on that line. Lift it: if the short goes with it, it has failed.
Compare:: The same part on the next line or connector pin is the healthy reading to compare with.
Watch for:: A two-way part reads open both ways when it is good, exactly like one that has failed open. The meter cannot tell them apart; an identical part on the next line can.

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 P7A

One character differs, and it is one that is easy to confuse under a lamp. Each code has a page of its own.

PTA2

Codes that begin with P7A

For a marking with its end worn or burnt off. Each code has a page of its own.

PTA331

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