SMD code AFAA in SOT-23
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.
8 parts in SOT-23 are printed AFAA
Not sure which one you have?
Answer up to 4 quick questions and these 8 parts are ranked, with a meter test that settles it. It works on a dead part too.
all SOT-23, 3 pins. What differs:
CN809RSOT-23ConsonanceConsonance
- What it is
- Voltage supervisor
- Maker
- Consonance
- Package
- SOT-23
- Pins
- 3
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Integrated circuit.
MAX809S-263SOT-23HXYHXY
- What it is
- Voltage supervisor
- Maker
- HXY
- Package
- SOT-23
- Pins
- 3
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Integrated circuit.
AM809RSOT-23Xiang Shuo ElectronicsXiang Shuo Electronics
- What it is
- Voltage supervisor
- Maker
- Xiang Shuo Electronics
- Package
- SOT-23
- Pins
- 3
- Details
- Voltage detector IC: 2.63V±1.5%, -Reset PPO
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
HM809RSOT-23Huamei SemiconductorHuamei Semiconductor
- What it is
- Voltage supervisor
- Maker
- Huamei Semiconductor
- Package
- SOT-23
- Pins
- 3
- Details
- Voltage detector IC: 2.63V±2.5%, -Reset PPO
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
HWD809REUSOT-23Chengdu Sino MicroelectronicsChengdu Sino Microelectronics
- What it is
- Voltage supervisor
- Maker
- Chengdu Sino Microelectronics
- Package
- SOT-23
- Pins
- 3
- Details
- Voltage detector IC: 2.63V±2%, -Reset PPO
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
MAX809RSOT-23Analog DevicesAnalog Devices
- What it is
- Not recorded
- Maker
- Analog Devices
- Package
- SOT-23
- Pins
- 3
- Source
- Published code list
Is it dead? The meter test is below: This part.
MAX809RURSOT-23Analog DevicesAnalog Devices
- What it is
- Not recorded
- Maker
- Analog Devices
- Package
- SOT-23
- Pins
- 3
- Details
- CMOS-IC: Voltage Detector 2,63V, -Reset Push-pull output
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
MAX809RXRSOT-23Analog DevicesAnalog Devices
- What it is
- Not recorded
- Maker
- Analog Devices
- Package
- SOT-23
- Pins
- 3
- Details
- microproc -ve reset gen 3.0V
- Source
- Published code list
Is it dead? The meter test is below: This part.
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.
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