Skip to content
WhatSMDSign in

SMD code 7D in SOT-363

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.

14 parts in SOT-363 are printed 7D

Not sure which one you have?

Answer up to 4 quick questions and these 31 parts are ranked, with a meter test that settles it. It works on a dead part too.

  • BAV99DGPSOT-363Switching diode, 6 pins, ChenmkoSwitching diode6 pinsChenmko
    What it is
    Switching diode
    Maker
    Chenmko
    Package
    SOT-363
    Pins
    6
    Details
    FAST SWITCHING DIODE ARRAY, 75 V, 215 mA
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: Silicon diode.

    Datasheetfor BAV99DGP, opens in a new tab
  • BAV99DGP-ASOT-363Switching diode, 6 pins, ChenmkoSwitching diode6 pinsChenmko
    What it is
    Switching diode
    Maker
    Chenmko
    Package
    SOT-363
    Pins
    6
    Details
    FAST SWITCHING DIODE ARRAY, 75 V, 215 mA
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: Silicon diode.

    Datasheetfor BAV99DGP-A, opens in a new tab
  • FMUN5214DWSOT-363Digital transistor (resistors built in), 6 pins, Formosa MicrosemiDigital transistor (resistors built in)6 pinsFormosa Microsemi
    What it is
    Digital transistor (resistors built in)
    Maker
    Formosa Microsemi
    Package
    SOT-363
    Pins
    6
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: Digital transistor.

    Datasheetfor FMUN5214DW, opens in a new tab
  • FMUN5214DW-Q1SOT-363Digital transistor (resistors built in), 6 pins, Formosa MicrosemiDigital transistor (resistors built in)6 pinsFormosa Microsemi
    What it is
    Digital transistor (resistors built in)
    Maker
    Formosa Microsemi
    Package
    SOT-363
    Pins
    6
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: Digital transistor.

    Datasheetfor FMUN5214DW-Q1, opens in a new tab
  • HBC114YS6RSOT-363Digital transistor (NPN, resistors built in), 6 pins, CYStekDigital transistor (NPN, resistors built in)6 pinsCYStek
    What it is
    Digital transistor (NPN, resistors built in)
    Maker
    CYStek
    Package
    SOT-363
    Pins
    6
    Details
    dual NPN digital (resistor-equipped) transistor, R1 10K, R2 47K
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: Digital transistor.

    Datasheetfor HBC114YS6R, opens in a new tab
  • LMUN5214DW1T1GSOT-363Digital transistor (resistors built in), 6 pins, LRCDigital transistor (resistors built in)6 pinsLRC
    What it is
    Digital transistor (resistors built in)
    Maker
    LRC
    Package
    SOT-363
    Pins
    6
    Details
    Digital transistor (bias resistors built in), N+N, IC 100 mA, VCEO 50 V
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: Digital transistor.

    Datasheetfor LMUN5214DW1T1G, opens in a new tab
  • MMUN5214DWSOT-363Digital transistor (resistors built in), 6 pins, YFWDigital transistor (resistors built in)6 pinsYFW
    What it is
    Digital transistor (resistors built in)
    Maker
    YFW
    Package
    SOT-363
    Pins
    6
    Details
    Digital transistor (bias resistors built in)
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: Digital transistor.

    Datasheetfor MMUN5214DW, opens in a new tab
  • MUN5214DW1SOT-363Digital transistor (NPN, resistors built in), 6 pins, onsemiDigital transistor (NPN, resistors built in)6 pinsonsemi
    What it is
    Digital transistor (NPN, resistors built in)
    Maker
    onsemi
    Package
    SOT-363
    Pins
    6
    Details
    Dual NPN Bias Resistor Transistors R1 = 10 k  , R2 = 47 k 
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: Digital transistor.

    Datasheetfor MUN5214DW1, opens in a new tab
  • NSVMUN5214DW1SOT-363Digital transistor (NPN, resistors built in), 6 pins, onsemiDigital transistor (NPN, resistors built in)6 pinsonsemi
    What it is
    Digital transistor (NPN, resistors built in)
    Maker
    onsemi
    Package
    SOT-363
    Pins
    6
    Details
    Dual NPN Bias Resistor Transistors R1 = 10 k  , R2 = 47 k 
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: Digital transistor.

    Datasheetfor NSVMUN5214DW1, opens in a new tab
  • S-LMUN5214DW1T1GSOT-363Digital transistor (resistors built in), 6 pins, LRCDigital transistor (resistors built in)6 pinsLRC
    What it is
    Digital transistor (resistors built in)
    Maker
    LRC
    Package
    SOT-363
    Pins
    6
    Details
    Digital transistor (bias resistors built in), N+N, IC 100 mA, VCEO 50 V
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: Digital transistor.

    Datasheetfor S-LMUN5214DW1T1G, opens in a new tab
  • SMUN5214DWSOT-363Digital transistor (resistors built in), 6 pins, SeCoSDigital transistor (resistors built in)6 pinsSeCoS
    What it is
    Digital transistor (resistors built in)
    Maker
    SeCoS
    Package
    SOT-363
    Pins
    6
    Details
    Digital (resistor-equipped) transistor
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: Digital transistor.

    Datasheetfor SMUN5214DW, opens in a new tab
  • SMUN5214DW1SOT-363Digital transistor (NPN, resistors built in), 6 pins, onsemiDigital transistor (NPN, resistors built in)6 pinsonsemi
    What it is
    Digital transistor (NPN, resistors built in)
    Maker
    onsemi
    Package
    SOT-363
    Pins
    6
    Details
    Dual NPN Bias Resistor Transistors R1 = 10 k  , R2 = 47 k 
    Source
    Manufacturer datasheet

    Is it dead? The meter test is below: Digital transistor.

    Datasheetfor SMUN5214DW1, opens in a new tab
  • MUN5214DWSOT-3636 pins, MotorolaNot recorded6 pinsMotorola
    What it is
    Not recorded
    Maker
    Motorola
    Package
    SOT-363
    Pins
    6
    Details
    Si-npn-Digi: Dual, Sw, 2x50V, 100mA, 200mW, R1/R2=10/47k
    Source
    Published code list

    Is it dead? The meter test is below: This part.

  • MUN5214DW1T1SOT-3636 pins, onsemiNot recorded6 pinsonsemi
    What it is
    Not recorded
    Maker
    onsemi
    Package
    SOT-363
    Pins
    6
    Source
    Published code list

    Is it dead? The meter test is below: This part.

  • 1 more part has no package on record. Nothing rules it out, so it stays.

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.

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.

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.

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.

TVS or ESD protection diode

Diode range, from the protected line to ground, part lifted if you can.

Working, it reads

A one-way part reads about 0.6 to 0.8 V forward and open in reverse. A two-way part reads open both ways. Arrays with several lines read as the datasheet's diagram draws them.

Dead, it reads

  • From the line to ground, the same reading both ways, near 0 V with a continuous beep: shorted.
  • A reading both ways on a one-way part: leaky.
  • A one-way part open both ways: failed open.
On the board
, a line reading shorted to ground can be this part or anything else on that line. Lift it: if the short goes with it, it has failed.
Compare:
The same part on the next line or connector pin is the healthy reading to compare with.
Watch for:
A two-way part reads open both ways when it is good, exactly like one that has failed open. The meter cannot tell them apart; an identical part on the next line can.

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 7D

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

Did you find your part?

Open this in the search to correct a character or try another package.