1 / 6Power board of a Qsc KS118 powered sub
Photos show this part as we found it on boards during repairs - not the stock you'll receive.
MMBTA42
Marking on the part: K3M
Where to buy online
Other stores - prices, stock and shipping are theirs.
- Identified on 7 board photos in 4 devices
- Found faulty in 1 repair
Specifications (BJT)
| NPN, PNP | NPN |
|---|---|
| Max collector power dissipation | 0.25 W |
| Max collector-base voltage |Vcb| | 300 V |
| Max collector-emitter voltage |Vce| | 300 V |
| Max emitter-base voltage |Veb| | 6 V |
| Max collector current |Ic| | 0.5 A |
| Max junction temperature | 150 deg C |
| Transition frequency | 50 MHz |
| Collector capacitance | 3 pF |
| Min forward current transfer ratio (hFE) | 80 |
| Package, e.g. TO220 | SOT23 |
Found in these devices
Where we've identified this part on boards we've worked on.
| Device | Board | Position on board |
|---|---|---|
| Qsc KS118 powered sub | Power board | Q12, Q4 |
| Qsc K12.2 powered speaker | Power board | Q15 |
| Qsc KW152 powered speaker | Power board | Q15 |
| Qsc KW181 powered sub | Main board | Q15 |
From our repair bench
1
repairs involving this part
0
times replaced
1
found faulty
0
checked and OK
Failed or replaced in: Qsc KS118 (1)
Totals across every repair logged on Circuit Fixers.
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