SMD code T5-
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.
87 parts are printed T5-
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.
1N4448LSOD-882Switching diode, 2 pins, Galaxy MicroelectronicsSwitching diodeSOD-8822 pinsGalaxy Microelectronics
- What it is
- Switching diode
- Maker
- Galaxy Microelectronics
- Package
- SOD-882
- Pins
- 2
- Details
- 0.15A, 80V, Surface Mount Small Signal Switching Diodes
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Silicon diode.
1N4448WSOD-123Switching diode, 2 pins, Diodes IncorporatedSwitching diodeSOD-1232 pinsDiodes Incorporated
- What it is
- Switching diode
- Maker
- Diodes Incorporated
- Package
- SOD-123
- Pins
- 2
- Pinout
- 1 cathode
- 2 anode
- Details
- Fast switching surface-mount diode
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Silicon diode.
1N4448W-7-FSOD-123Switching diode, 2 pins, HXYSwitching diodeSOD-1232 pinsHXY
- What it is
- Switching diode
- Maker
- HXY
- Package
- SOD-123
- Pins
- 2
- Details
- Switching diode, 100 V, 0.3 A
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Silicon diode.
1N4448WQSOD-123Switching diode, 2 pins, Yangjie Electronic TechSwitching diodeSOD-1232 pinsYangjie Electronic Tech
- What it is
- Switching diode
- Maker
- Yangjie Electronic Tech
- Package
- SOD-123
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Silicon diode.
1N4448WSSOD-323Switching diode, 2 pins, Formosa MicrosemiSwitching diodeSOD-3232 pinsFormosa Microsemi
- What it is
- Switching diode
- Maker
- Formosa Microsemi
- Package
- SOD-323
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Silicon diode.
1N4448WS-7-FSOD-323Switching diode, 2 pins, HXYSwitching diodeSOD-3232 pinsHXY
- What it is
- Switching diode
- Maker
- HXY
- Package
- SOD-323
- Pins
- 2
- Details
- Switching diode, 100 V, 0.3 A
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Silicon diode.
1N4448WS-HFSOD-323Switching diode, 2 pins, ComchipSwitching diodeSOD-3232 pinsComchip
- What it is
- Switching diode
- Maker
- Comchip
- Package
- SOD-323
- Pins
- 2
- Details
- 100 V, 250 mA switching diode
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Silicon diode.
1N4448WSGWSOD-323Switching diode, 2 pins, DiotecSwitching diodeSOD-3232 pinsDiotec
- What it is
- Switching diode
- Maker
- Diotec
- Package
- SOD-323
- Pins
- 2
- Details
- SMD Small Signal Switching Diodes VF10mA
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Silicon diode.
1N4448WTSOD-523Switching diode, 2 pins, Galaxy MicroelectronicsSwitching diodeSOD-5232 pinsGalaxy Microelectronics
- What it is
- Switching diode
- Maker
- Galaxy Microelectronics
- Package
- SOD-523
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Silicon diode.
1N4448XSOD-523Switching diode, 2 pins, JSCJSwitching diodeSOD-5232 pinsJSCJ
- What it is
- Switching diode
- Maker
- JSCJ
- Package
- SOD-523
- Pins
- 2
- Details
- Switching diode, 100 V, 250 mA
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Silicon diode.
BZT52B30LSOD-882Zener diode, 2 pins, Galaxy MicroelectronicsZener diodeSOD-8822 pinsGalaxy Microelectronics
- What it is
- Zener diode
- Maker
- Galaxy Microelectronics
- Package
- SOD-882
- Pins
- 2
- Details
- 30V, 100mW, Surface Mount Zener Diodes
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Zener diode.
BZX84-C30SOT-23Zener diode, 3 pins, NexperiaZener diodeSOT-233 pinsNexperia
- What it is
- Zener diode
- Maker
- Nexperia
- Package
- SOT-23
- Pins
- 3
- Pinout
- 1 anode
- 2 not connected
- 3 cathode
- Details
- 30 V approx. ±5% voltage regulator (Zener) diode
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Zener diode.
BZX384-C3V0SOD-323Zener diode, 2 pins, NexperiaZener diodeSOD-3232 pinsNexperia
- What it is
- Zener diode
- Maker
- Nexperia
- Package
- SOD-323
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Zener diode.
BZX584B30SOD-523Zener diode, 2 pins, Good-ArkZener diodeSOD-5232 pinsGood-Ark
- What it is
- Zener diode
- Maker
- Good-Ark
- Package
- SOD-523
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Zener diode.
BZX584B30VSOD-523Zener diode, 2 pins, Yangjie Electronic TechZener diodeSOD-5232 pinsYangjie Electronic Tech
- What it is
- Zener diode
- Maker
- Yangjie Electronic Tech
- Package
- SOD-523
- Pins
- 2
- Source
- Manufacturer datasheet
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.
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.
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.
Printed with a code easy to misread as T5-
One character differs, and it is one that is easy to confuse under a lamp. Each code has a page of its own.
Codes not listed here are printed on 11 more parts.
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