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SMD code 13- in SOD-523

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 in SOD-523 are printed 13-

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.

15 parts have no package on record. Nothing rules them out, so they stay.

  • SGM61032SCXKB6GDC-DC converter, 6 pins, SG MicroDC-DC converter6 pinsSG Micro
    What it is
    DC-DC converter
    Maker
    SG Micro
    Package
    Not recorded
    Pins
    6
    Details
    2.5V to 5.5V, 3A High Efficiency, Synchronous Buck Converter
    Source
    Manufacturer datasheet

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

  • SS1030HESchottky diode, Galaxy MicroelectronicsSchottky diodeNot recordedGalaxy Microelectronics
    What it is
    Schottky diode
    Maker
    Galaxy Microelectronics
    Package
    Not recorded
    Pins
    Not recorded
    Details
    1A, 30V, Surface Mount Schottky Barrier Rectifiers
    Source
    Manufacturer datasheet

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

  • TMP103AYFFRTemperature sensor, UMWTemperature sensorNot recordedUMW
    What it is
    Temperature sensor
    Maker
    UMW
    Package
    Not recorded
    Pins
    Not recorded
    Source
    Manufacturer datasheet

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

  • USFZ13VZener diode, KECZener diodeNot recordedKEC
    What it is
    Zener diode
    Maker
    KEC
    Package
    Not recorded
    Pins
    Not recorded
    Source
    Manufacturer datasheet

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

  • 02DZ13XZener diode, ToshibaZener diodeNot recordedToshiba
    What it is
    Zener diode
    Maker
    Toshiba
    Package
    Not recorded
    Pins
    Not recorded
    Details
    Zener diode: 12.40..13.08V, Iz=5mA, Zz=15, 200mW
    Source
    Published code list

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

  • 02DZ13YZener diode, ToshibaZener diodeNot recordedToshiba
    What it is
    Zener diode
    Maker
    Toshiba
    Package
    Not recorded
    Pins
    Not recorded
    Details
    Zener diode: 12.88..13.57V, Iz=5mA, Zz=15, 200mW
    Source
    Published code list

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

  • 02DZ13ZZener diode, ToshibaZener diodeNot recordedToshiba
    What it is
    Zener diode
    Maker
    Toshiba
    Package
    Not recorded
    Pins
    Not recorded
    Details
    Zener diode: 13.37..14.10V, Iz=5mA, Zz=15, 200mW
    Source
    Published code list

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

  • AP8822C-53GIVoltage supervisor, Anwell SemiconductorVoltage supervisorNot recordedAnwell Semiconductor
    What it is
    Voltage supervisor
    Maker
    Anwell Semiconductor
    Package
    Not recorded
    Pins
    Not recorded
    Details
    Voltage detector IC: 5.3V±2%, -Reset PPO, 200ms Rt delay, H-free
    Source
    Published code list

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

  • AP8822C-53GSVoltage supervisor, Anwell SemiconductorVoltage supervisorNot recordedAnwell Semiconductor
    What it is
    Voltage supervisor
    Maker
    Anwell Semiconductor
    Package
    Not recorded
    Pins
    Not recorded
    Details
    Voltage detector IC: 5.3V±2%, -Reset PPO, 200ms Rt delay, H-free
    Source
    Published code list

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

  • AP8822C-53PIVoltage supervisor, Anwell SemiconductorVoltage supervisorNot recordedAnwell Semiconductor
    What it is
    Voltage supervisor
    Maker
    Anwell Semiconductor
    Package
    Not recorded
    Pins
    Not recorded
    Details
    Voltage detector IC: 5.3V±2%, -Reset PPO, 200ms Rt delay
    Source
    Published code list

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

  • AP8822C-53PSVoltage supervisor, Anwell SemiconductorVoltage supervisorNot recordedAnwell Semiconductor
    What it is
    Voltage supervisor
    Maker
    Anwell Semiconductor
    Package
    Not recorded
    Pins
    Not recorded
    Details
    Voltage detector IC: 5.3V±2%, -Reset PPO, 200ms Rt delay
    Source
    Published code list

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

  • BZY55-C13Zener diode, Taiwan SemiconductorZener diodeNot recordedTaiwan Semiconductor
    What it is
    Zener diode
    Maker
    Taiwan Semiconductor
    Package
    Not recorded
    Pins
    Not recorded
    Details
    Zener diode: 12.35..13.65V, Izt=5mA, Zzt=26, 500mW
    Source
    Published code list

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

  • CDZ55C13Zener diode, Crownpo TechnologyZener diodeNot recordedCrownpo Technology
    What it is
    Zener diode
    Maker
    Crownpo Technology
    Package
    Not recorded
    Pins
    Not recorded
    Details
    Zener diode: 12.35..13.65V, Zzt=26, Izt=5mA, 500mW
    Source
    Published code list

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

  • CDZ55C13SZener diode, Crownpo TechnologyZener diodeNot recordedCrownpo Technology
    What it is
    Zener diode
    Maker
    Crownpo Technology
    Package
    Not recorded
    Pins
    Not recorded
    Details
    Zener diode: 12.35..13.65V, Zzt=26, Izt=5mA, 500mW
    Source
    Published code list

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

  • CDZ55C13TZener diode, Crownpo TechnologyZener diodeNot recordedCrownpo Technology
    What it is
    Zener diode
    Maker
    Crownpo Technology
    Package
    Not recorded
    Pins
    Not recorded
    Details
    Zener diode: 12.35..13.65V, Zzt=26, Izt=5mA, 200mW
    Source
    Published code list

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

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.

Schottky diode

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

Working, it reads

About 0.15 to 0.45 V anode to cathode, roughly half a silicon diode, and open the other way.

Dead, it reads

  • The same reading both ways round, near 0 V with a continuous beep or the same middling value: shorted.
  • A reading the wrong way round as well: leaky.
  • Open both ways: 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:
If an identical part sits elsewhere on the board, measure it the same way: that is what this one should read.
Watch for:
A large Schottky can read about 0.1 V forward and beep like a short, and leaks a little the wrong way when good, more when warm. It is shorted only if it reads the same both ways. Measure it cold, beside an identical cold one.

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.

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