SMD code EED

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 are printed EED

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.

CHDTC115EEGPSOT-416Digital transistor (NPN, resistors built in), 3 pins, ChenmkoDigital transistor (NPN, resistors built in)SOT-4163 pinsChenmko
What it is
Digital transistor (NPN, resistors built in)
Maker
Chenmko
Package
SOT-416
Pins
3
Details
NPN Digital Silicon Transistor, 50 V, 20 mA
Source
Manufacturer datasheet
Is it dead? The meter test is below: Digital transistor.
Datasheetfor CHDTC115EEGP, opens in a new tab
CHDTC115EEPTSOT-416Digital transistor (NPN, resistors built in), 3 pins, Chenmko EnterpriseDigital transistor (NPN, resistors built in)SOT-4163 pinsChenmko Enterprise
What it is
Digital transistor (NPN, resistors built in)
Maker
Chenmko Enterprise
Package
SOT-416
Pins
3
Details
NPN transistor: Sw, 50V, 20mA, 250MHz, R1/R2=100k/100k
Source
Published code list
Is it dead? The meter test is below: Digital transistor.
IXD5121E444MR-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: 4.4V±2%, -Reset ODO, +WDEN, Wt=200ms, Rdt=200ms
Source
Published code list
Is it dead? The meter test is below: Integrated circuit.
S-80849ALMP-EEDSOT-23-55 pins, ABLICNot recordedSOT-23-55 pinsABLIC
What it is
Not recorded
Maker
ABLIC
Package
SOT-23-5
Pins
5
Details
equivalent S-80849ALY
Source
Published code list
Is it dead? The meter test is below: This part.
S-80849ALNP-EEDSOT-3434 pins, ABLICNot recordedSOT-3434 pinsABLIC
What it is
Not recorded
Maker
ABLIC
Package
SOT-343
Pins
4
Details
equivalent S-80849ALY
Source
Published code list
Is it dead? The meter test is below: This part.
S-80849ALUP-EEDSOT-893 pins, ABLICNot recordedSOT-893 pinsABLIC
What it is
Not recorded
Maker
ABLIC
Package
SOT-89
Pins
3
Details
equivalent S-80849ALY
Source
Published code list
Is it dead? The meter test is below: This part.
XC6121E444MR-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: 4.4V±2%, -Reset ODO, +WDEN, Wt=200ms, Rdt=200ms
Source
Published code list
Is it dead? The meter test is below: Integrated circuit.
XC6367E435MRSOT-23-5DC-DC converter, 5 pins, TorexDC-DC converterSOT-23-55 pinsTorex
What it is
DC-DC converter
Maker
Torex
Package
SOT-23-5
Pins
5
Details
DC/DC voltage converter IC: PWM st-up, 4.3V±2.5%, 200mA, 500kHz, +CE
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.

Digital transistor

Ohms range, part lifted. The datasheet gives the built-in resistors: R1 in series with the base, R2 from base to emitter.

Working, it reads

Base to emitter reads about R1 plus R2 either way round, about 20 kΩ on a 10 k and 10 k part, give or take their wide tolerance. Collector to emitter reads open. A part with no R2 reads a junction behind R1 one way instead.

Dead, it reads

Collector to emitter the same both ways, near 0 Ω with a continuous beep: shorted.
From the base, open or far above R1 plus R2: R1 has failed. Static damage shows here most often.
Base to emitter near 0 Ω: failed short.

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:: The readings depend on the resistor values, so an identical part elsewhere on the board is the surest reference. Measure it the same way.
Watch for:: On the diode range a good part with 10 kΩ resistors reads open on every pair, so a good part looks dead there. Use the ohms range.

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.

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.

Printed with a code easy to misread as EED

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

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