Could you help me identify this transistor?

I have searched every SMD code decoder and can't find the exact type of this transistor:

enter image description here

It apparently has CCE1X written on it, and has a SOT-23-6 package if I’m not mistaken.

It’s part of a router main board, blown because of using a wrong power adapter (the polarity was reversed).

  • 4
    \$\begingroup\$ It is probably not a transistor. It is more likely a switch mode power supply integrated circuit. The large black things marked "4R7" are inductors (coils.) \$\endgroup\$
    – JRE
    Mar 13, 2023 at 9:30
  • \$\begingroup\$ Is there any chance I could replace that? \$\endgroup\$
    – Nandosuke
    Mar 13, 2023 at 9:54
  • \$\begingroup\$ The hint that it is a SMPS IC may not be enough to help you find a replacement - I took a quick look and couldn't find anything that matches. It might be easier to find out what voltage those two regulators were supposed to produce and replace them with separate modules. You'd remve the IC and probably other parts of the circuit, then wire in voltage regulator modules to the power input and output. \$\endgroup\$
    – JRE
    Mar 13, 2023 at 9:57
  • \$\begingroup\$ I haven’t checked what voltage that runs in the circuitry, since it just happened, but the external wall adapter output is 12 volts \$\endgroup\$
    – Nandosuke
    Mar 13, 2023 at 10:08
  • \$\begingroup\$ Can’t find it but it’s probably a synchronous buck IC, considering the surrounding components. \$\endgroup\$
    – winny
    Mar 13, 2023 at 10:11

1 Answer 1


Personnaly i read "CCEQ" on the marking (not sure). MCP3421A2T-E/CH has a marking type "CCNN" with NN date/lot code in SOT-23-6 package. It is an ADC with I2C interface, is this related with the board functionnalities?

Picture from ebay: enter image description here


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