1 / 1q309 ยท Main board of a Crest CC5500 amplifier
Photos show this part as we found it on boards during repairs - not the stock you'll receive.
MMBT5551
NPN bipolar junction transistor, small-signal, general purpose switching/amplification.
Where to buy online
Other stores - prices, stock and shipping are theirs.
- Identified on 1 board photo in 1 device
Specifications (BJT)
| Si, Ge | Si |
|---|---|
| NPN, PNP | NPN |
| Max collector power dissipation | 0.2 W |
| Max collector-base voltage |Vcb| | 180 V |
| Max collector-emitter voltage |Vce| | 160 V |
| Max emitter-base voltage |Veb| | 5 V |
| Max collector current |Ic| | 0.6 A |
| Max junction temperature | 175 deg C |
| Transition frequency | 100 MHz |
| Collector capacitance | 10 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 |
|---|---|---|
| Crest CC5500 amplifier | Main board | Q309 |
From our repair bench
1
repairs involving this part
0
times replaced
0
found faulty
1
checked and OK
Totals across every repair logged on Circuit Fixers.
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