SMD code C7-
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.
165 parts are printed C7-
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.
R3130N37ECSOT-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 3,7V, -Reset Open drain output, 240ms
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
RN5VD27AASOT-23-55 pins, Nisshinbo Micro DevicesNot recordedSOT-23-55 pinsNisshinbo Micro Devices
- What it is
- Not recorded
- Maker
- Nisshinbo Micro Devices
- Package
- SOT-23-5
- Pins
- 5
- Details
- CMOS-IC: Voltage Detector 2,7V, Reset Push-pull output
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
RP109L151BDFNLDO regulator, RicohLDO regulatorDFNNot recordedRicoh
- What it is
- LDO regulator
- Maker
- Ricoh
- Package
- DFN
- Pins
- Not recorded
- Details
- Linear voltage regulator IC: LDO, 1.5V±1%, 150mA, +CE
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
RT9014A-JPPQWDFNLDO regulator, RichtekLDO regulatorDFNNot recordedRichtek
- What it is
- LDO regulator
- Maker
- Richtek
- Package
- DFN
- Pins
- Not recorded
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
RT9030-10GU5SOT-353LDO regulator, 5 pins, RichtekLDO regulatorSOT-3535 pinsRichtek
- What it is
- LDO regulator
- Maker
- Richtek
- Package
- SOT-353
- Pins
- 5
- Details
- Linear voltage regulator IC: LDO, 1.0V±2%, 150mA, +CE
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
RT9161-45CXSOT-89LDO regulator, 3 pins, RichtekLDO regulatorSOT-893 pinsRichtek
- What it is
- LDO regulator
- Maker
- Richtek
- Package
- SOT-89
- Pins
- 3
- Details
- VR-IC: LDO, 4.5V±2%, 300mA
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
RT9161-165CVSOT-23LDO regulator, 3 pins, RichtekLDO regulatorSOT-233 pinsRichtek
- What it is
- LDO regulator
- Maker
- Richtek
- Package
- SOT-23
- Pins
- 3
- Details
- VR-IC: LDO, 1.6V±2%, 300mA
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
RT9169-40CBSOT-23-5LDO regulator, 5 pins, RichtekLDO regulatorSOT-23-55 pinsRichtek
- What it is
- LDO regulator
- Maker
- Richtek
- Package
- SOT-23-5
- Pins
- 5
- Details
- VR-IC: LDO, -CE, 4.0V±2%, 100mA
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
RT9193-28PQVWSONLDO regulator, RichtekLDO regulatorWSONNot recordedRichtek
- What it is
- LDO regulator
- Maker
- Richtek
- Package
- WSON
- Pins
- Not recorded
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
RT9293B-20GJ6SOT-23-6LED driver, 6 pins, RichtekLED driverSOT-23-66 pinsRichtek
- What it is
- LED driver
- Maker
- Richtek
- Package
- SOT-23-6
- Pins
- 6
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
SN74LVC1G17DFNLogic gate, Texas InstrumentsLogic gateDFNNot recordedTexas Instruments
- What it is
- Logic gate
- Maker
- Texas Instruments
- Package
- DFN
- Pins
- Not recorded
- Details
- Schmitt-Trigger
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
4 more parts have no package on record
RKZ3.0B2KKZener diode, RenesasZener diodeNot recordedNot recordedRenesas
- What it is
- Zener diode
- Maker
- Renesas
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Zener diode: 2.95..3.20V, Izt=5mA, Zzt=120, 150mW
- Source
- Published code list
Is it dead? The meter test is below: Zener diode.
RKZ3.0B2KLZener diode, RenesasZener diodeNot recordedNot recordedRenesas
- What it is
- Zener diode
- Maker
- Renesas
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Zener diode: 2.95..3.20V, Izt=5mA, Zzt=120, 100mW
- Source
- Published code list
Is it dead? The meter test is below: Zener diode.
RN1908AFSToshibaNot recordedNot recordedNot recordedToshiba
- What it is
- Not recorded
- Maker
- Toshiba
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Si-npn-Digi: Dual, Sw, 50V, 80mA, 50mW, 250MHz, R1/R2=22k/47k
- Source
- Published code list
Is it dead? The meter test is below: This part.
SN74LVC1G17DRY2Logic gate, Texas InstrumentsLogic gateNot recordedNot recordedTexas Instruments
- What it is
- Logic gate
- Maker
- Texas Instruments
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Schmitt-Trigger
- 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.
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.
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.
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.
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.
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