Need help identifying a few SMT parts

[Evan Shultz]

There are a couple SMT parts I can't figure out. Can you help?

Top mark, package, notes
1. 688, SOT89, NPN
2. W3, SOT23-5, from HB-PPM of Punch 45HD daughterboard
3. DK (upper) QD (lower), SOT89 (SOT23 would be BCX42), NPN
4. W25, SOT23
5. T4, SOT23-6, may be linear voltage regulator
6. 2Z, SOT23, PNP?
7. p05, SOT23

When trying to identify parts, I usually check out SMD Halbleiter Code 0... and NXP's website. Are there other good resources?

 

[Evan Shultz]

1. Pretty sure it's Diodes, Inc. (formerly Zetex) FCX688B.
2. ROHM (and others) FMW3.
3. Used as FET gate driver in totem pole with SOT89 BCX52-10 [which has marking AG (upper) QB (lower)].

Can anyone help identify the last 5 parts?

Or suggest good SMT marking code lookup sites?

 

[Enzo]

Do you have a bag of loose parts? Or are they in something, and if so, WHAT? Maybe we have a schematic.

I usually find it easier to look up R101 in a schematic than to try to ID on the board.

 

[Evan Shultz]

Thanks for the reply Enzo. These parts are on PCBs for which I don't have the schematic.

#3 is on the gate driver daughterboard from a Tsunami dB1100 car amp.

8. pink (cathode end) then blue band, MELF/SOD80, 400V+ diode

How does one find color band codes for MELF/SOD80 diodes? I found this and this, but they don't have this particular color band code.