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SMD code 5Gs

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.

The last letter, s, is lower case, which on NXP and Philips parts is a date or factory code, so it was set aside and 5G was searched.

53 parts are printed 5Gs

Not sure which one you have?

Answer up to 4 quick questions and these 50 parts are ranked, with a meter test that settles it. It works on a dead part too.

  • FT533GeSOT-353LDO regulator, 5 pins, Fremont Micro DevicesLDO regulatorSOT-3535 pinsFremont Micro Devices
    What it is
    LDO regulator
    Maker
    Fremont Micro Devices
    Package
    SOT-353
    Pins
    5
    Details
    Linear voltage regulator IC: LDO, 2.8V±2%, 700mA, +CE
    Source
    Published code list

    Is it dead? The meter test is below: Voltage regulator.

  • FT533GfSOT-353LDO regulator, 5 pins, Fremont Micro DevicesLDO regulatorSOT-3535 pinsFremont Micro Devices
    What it is
    LDO regulator
    Maker
    Fremont Micro Devices
    Package
    SOT-353
    Pins
    5
    Details
    Linear voltage regulator IC: LDO, 2.8V±2%, 700mA, +CE
    Source
    Published code list

    Is it dead? The meter test is below: Voltage regulator.

  • FT533GgSOT-23LDO regulator, 3 pins, Fremont Micro DevicesLDO regulatorSOT-233 pinsFremont Micro Devices
    What it is
    LDO regulator
    Maker
    Fremont Micro Devices
    Package
    SOT-23
    Pins
    3
    Details
    Linear voltage regulator IC: LDO, 2.8V±2%, 700mA
    Source
    Published code list

    Is it dead? The meter test is below: Voltage regulator.

  • FT533GhSOT-23LDO regulator, 3 pins, Fremont Micro DevicesLDO regulatorSOT-233 pinsFremont Micro Devices
    What it is
    LDO regulator
    Maker
    Fremont Micro Devices
    Package
    SOT-23
    Pins
    3
    Details
    Linear voltage regulator IC: LDO, 2.8V±2%, 700mA
    Source
    Published code list

    Is it dead? The meter test is below: Voltage regulator.

  • FT533GiSOT-89LDO regulator, 3 pins, Fremont Micro DevicesLDO regulatorSOT-893 pinsFremont Micro Devices
    What it is
    LDO regulator
    Maker
    Fremont Micro Devices
    Package
    SOT-89
    Pins
    3
    Details
    Linear voltage regulator IC: LDO, 2.8V±2%, 700mA
    Source
    Published code list

    Is it dead? The meter test is below: Voltage regulator.

  • HABC808-40SOT-23PNP transistor, 3 pins, Hottech ElectronicsPNP transistorSOT-233 pinsHottech Electronics
    What it is
    PNP transistor
    Maker
    Hottech Electronics
    Package
    SOT-23
    Pins
    3
    Details
    PNP transistor: GP, 30V, 800mA, 300mW, 100MHz, B=250..600
    Source
    Published code list

    Is it dead? The meter test is below: PNP transistor.

  • MMBD352SOT-233 pins, onsemiNot recordedSOT-233 pinsonsemi
    What it is
    Not recorded
    Maker
    onsemi
    Package
    SOT-23
    Pins
    3
    Details
    Si-diode: Dual, UHF-Mix, 7V, 10mA, Vf<0,6V(10mA), <1pF
    Source
    Published code list

    Is it dead? The meter test is below: Silicon diode.

  • R3131N25EASOT-233 pins, Nisshinbo Micro DevicesNot recordedSOT-233 pinsNisshinbo Micro Devices
    What it is
    Not recorded
    Maker
    Nisshinbo Micro Devices
    Package
    SOT-23
    Pins
    3
    Details
    CMOS-IC: Voltage Detector 2,5V, Reset Push-pull output, 240ms
    Source
    Published code list

    Is it dead? The meter test is below: Integrated circuit.

  • R3132Q16ECSOT-1434 pins, Nisshinbo Micro DevicesNot recordedSOT-1434 pinsNisshinbo Micro Devices
    What it is
    Not recorded
    Maker
    Nisshinbo Micro Devices
    Package
    SOT-143
    Pins
    4
    Details
    CMOS-IC: Voltage Detector 1,6V, MR, -Reset Open drain output
    Source
    Published code list

    Is it dead? The meter test is below: Integrated circuit.

  • R5106N211ASOT-23-6Voltage supervisor, 6 pins, RicohVoltage supervisorSOT-23-66 pinsRicoh
    What it is
    Voltage supervisor
    Maker
    Ricoh
    Package
    SOT-23-6
    Pins
    6
    Details
    Voltage detector IC: 2.1V±1%, -Reset ODO, Inhibit
    Source
    Published code list

    Is it dead? The meter test is below: Integrated circuit.

  • 5 more parts have no package on record
    • MIC5365-1.8YMTLDO regulator, MicrelLDO regulatorNot recordedNot recordedMicrel
      What it is
      LDO regulator
      Maker
      Micrel
      Package
      Not recorded
      Pins
      Not recorded
      Details
      Linear voltage regulator IC: LDO, 1.8V±2%, 150mA, +CE
      Source
      Published code list

      Is it dead? The meter test is below: Voltage regulator.

    • MM5Z11VZener diode, Fairchild SemiconductorZener diodeNot recordedNot recordedFairchild Semiconductor
      What it is
      Zener diode
      Maker
      Fairchild Semiconductor
      Package
      Not recorded
      Pins
      Not recorded
      Source
      Published code list

      Is it dead? The meter test is below: Zener diode.

    • MMBD353onsemiNot recordedNot recordedNot recordedonsemi
      What it is
      Not recorded
      Maker
      onsemi
      Package
      Not recorded
      Pins
      Not recorded
      Details
      dual series MBD101
      Source
      Published code list

      Is it dead? The meter test is below: This part.

    • R1161D251BNisshinbo Micro DevicesNot recordedNot recordedNot recordedNisshinbo Micro Devices
      What it is
      Not recorded
      Maker
      Nisshinbo Micro Devices
      Package
      Not recorded
      Pins
      Not recorded
      Details
      VR-IC: LDO, CE, 2.5V±2%, 350mA
      Source
      Published code list

      Is it dead? The meter test is below: Voltage regulator.

    • RP101K202BLDO regulator, RicohLDO regulatorNot recordedNot recordedRicoh
      What it is
      LDO regulator
      Maker
      Ricoh
      Package
      Not recorded
      Pins
      Not recorded
      Details
      Linear voltage regulator IC: LDO, LN, 2.0V±0.8%, 300mA, +CE
      Source
      Published code list

      Is it dead? The meter test is below: Voltage regulator.

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.

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.

PNP transistor

Diode range, part lifted or its base leg off the pad.

Working, it reads

Black probe on the base reads about 0.6 to 0.75 V to the emitter and to the collector, and open the other way round. Collector to emitter reads open both ways.

Dead, it reads

  • Collector to emitter the same both ways, near 0 V with a continuous beep: shorted. The commonest failure.
  • The base the same both ways to another pin, near 0 V or a middling value: a shorted junction.
  • Only one junction reads, or none: a junction has failed open. It then looks like a diode.
  • A reading the wrong way round, where it should be open: leaky.
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.
Watch for:
A pair of diodes with a common pin reads just like a transistor, and some transistors carry a built-in diode or resistor. The datasheet says which.

A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

Zener diode

Diode range for the forward check, part lifted, red probe on the anode. A bench supply for the Zener voltage.

Working, it reads

About 0.6 to 0.8 V forward and open in reverse on the diode range. Its Zener voltage shows only on a supply: feed it through a resistor that sets about 5 mA, cathode to positive, read quickly, and it should hold near its rated voltage.

Dead, it reads

  • The same reading both ways round, near 0 V with a continuous beep or the same middling value: shorted.
  • Open both ways, forward too: failed open.
  • Holds well off its rated voltage on the supply test: drifted.
  • A soft knee, or a voltage that creeps on the supply test: leaky.
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.
Watch for:
A meter's diode range stops at about 2 to 3 V, so almost every Zener reads open in reverse on it, good or bad; a 3 V meter may just show a 2.4 or 2.7 V part. Above about 3 V the meter cannot tell a Zener from a plain diode.

A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.

Silicon diode

Diode range, part lifted or one leg off the pad. Red probe on the anode.

Working, it reads

About 0.5 to 0.8 V anode to cathode, and open the other way. Small switching diodes read about 0.6 to 0.7 V; large rectifiers can read a little lower.

Dead, it reads

  • The same reading both ways round, near 0 V with a continuous beep or the same middling value: shorted.
  • Open both ways: failed open.
  • A reading the wrong way round as well: leaky.
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.
Watch for:
A three-pin body can hold two diodes. With a common pin they read two junctions from that pin, just like a transistor; in series they read two drops end to end. Test each pair the datasheet names.

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.

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.

Did you find your part?

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