SMD code 25-
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.
122 parts are printed 25-
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.
ELM9825BBSOT-233 pins, ELM TechnologyNot recordedSOT-233 pinsELM Technology
- What it is
- Not recorded
- Maker
- ELM Technology
- Package
- SOT-23
- Pins
- 3
- Details
- Linear voltage regulator IC: 2.5V±2%, 200mA
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
FDZ12EVSOD-523Zener diode, 2 pins, First SilionZener diodeSOD-5232 pinsFirst Silion
- What it is
- Zener diode
- Maker
- First Silion
- Package
- SOD-523
- Pins
- 2
- Details
- Zener diode: 11.740..12.240V, Izt=5mA, Zzt=30, 150mW
- Source
- Published code list
Is it dead? The meter test is below: Zener diode.
FDZ12VT1GSOD-323Zener diode, 2 pins, First SilionZener diodeSOD-3232 pinsFirst Silion
- What it is
- Zener diode
- Maker
- First Silion
- Package
- SOD-323
- Pins
- 2
- Details
- Zener diode: 11.740..12.240V, Izt=5mA, Zzt=30, 200mW
- Source
- Published code list
Is it dead? The meter test is below: Zener diode.
GDZ2V4B-V-GSOD-323Zener diode, 2 pins, VishayZener diodeSOD-3232 pinsVishay
- What it is
- Zener diode
- Maker
- Vishay
- Package
- SOD-323
- Pins
- 2
- Details
- Zener diode: 2.43..2.63V, Izt=5mA, Zzt=100, 200mW
- Source
- Published code list
Is it dead? The meter test is below: Zener diode.
HMSZ5225BSOD-3232 pins, Hi-Sincerity MicroelectronicsNot recordedSOD-3232 pinsHi-Sincerity Microelectronics
- What it is
- Not recorded
- Maker
- Hi-Sincerity Microelectronics
- Package
- SOD-323
- Pins
- 2
- Details
- Z-diode: 3V±5%, Izt=20mA, Zzt=29Ω, 225mW
- Source
- Published code list
Is it dead? The meter test is below: Silicon diode.
LC1472CKETR25DFNLDO regulator, Shanghai LeadChip MicroelectronicsLDO regulatorDFNNot recordedShanghai LeadChip Microelectronics
- What it is
- LDO regulator
- Maker
- Shanghai LeadChip Microelectronics
- Package
- DFN
- Pins
- Not recorded
- Details
- Linear voltage regulator IC: LDO, 2.5V±2%, 300mA, +CE
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
LDK130PU25RDFNLDO regulator, SGS-Thomson MicroelectronicsLDO regulatorDFNNot recordedSGS-Thomson Microelectronics
- What it is
- LDO regulator
- Maker
- SGS-Thomson Microelectronics
- Package
- DFN
- Pins
- Not recorded
- Details
- Linear voltage regulator IC: LDO, 2.5V±2%, 300mA, +CE
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
LDLN025DFN4 pins, STMicroelectronicsNot recordedDFN4 pinsSTMicroelectronics
- What it is
- Not recorded
- Maker
- STMicroelectronics
- Package
- DFN
- Pins
- 4
- Details
- 250 mA ultra low noise LDO (1.8V)
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
MMBD2102SOT-233 pins, Texas InstrumentsNot recordedSOT-233 pinsTexas Instruments
- What it is
- Not recorded
- Maker
- Texas Instruments
- Package
- SOT-23
- Pins
- 3
- Details
- Si diode 100V 200mA
- Source
- Published code list
Is it dead? The meter test is below: Silicon diode.
MMPZ5253SPTSOD-323Zener diode, 2 pins, Chenmko EnterpriseZener diodeSOD-3232 pinsChenmko Enterprise
- What it is
- Zener diode
- Maker
- Chenmko Enterprise
- Package
- SOD-323
- Pins
- 2
- Details
- Zener diode: 24.50..25.50V, Izt=5mA, Zzt=62, 225mW
- Source
- Published code list
Is it dead? The meter test is below: Zener diode.
PDTA143XKSOT-233 pins, NXPNot recordedSOT-233 pinsNXP
- What it is
- Not recorded
- Maker
- NXP
- Package
- SOT-23
- Pins
- 3
- Details
- equivalent PDTA143XS
- Source
- Published code list
Is it dead? The meter test is below: This part.
4 more parts have no package on record
IXD5126C31ANR-GVoltage supervisor, IXYSVoltage supervisorNot recordedNot recordedIXYS
- What it is
- Voltage supervisor
- Maker
- IXYS
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Voltage detector IC: 3.1V±0.8%, -Reset PPO
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
KL3R25ShindengenNot recordedNot recordedNot recordedShindengen
- What it is
- Not recorded
- Maker
- Shindengen
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Thy-SPD: V Of-St=220V, Ifsm=30A(1ms), Ih=100mA, Bidirectional
- Source
- Published code list
Is it dead? The meter test is below: This part.
KL3RU25ShindengenNot recordedNot recordedNot recordedShindengen
- What it is
- Not recorded
- Maker
- Shindengen
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Thy-SPD: V Of-St=220V, Ifsm=30A(1ms), Ih=100mA, Bidirectional
- Source
- Published code list
Is it dead? The meter test is below: This part.
MSA-25434 pins, BroadcomNot recordedNot recorded4 pinsBroadcom
- What it is
- Not recorded
- Maker
- Broadcom
- Package
- Not recorded
- Pins
- 4
- 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.
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.
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.
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.
Did you find your part?
Open this in the search to correct a character or try another package.