Specs side by side
2 parts compared · 16 differing specs across 16 total parameters.
| Parameter | ||
|---|---|---|
| Voltage - Collector Emitter Breakdown | 40 V | - |
| Operating temperature | -55°C ~ 150°C (TJ) | - |
| Frequency - Transition | 300MHz | - |
| Case | TO-226-3, TO-92-3 (TO-226AA) Formed Leads | TO-92 / SOT-23 |
| Package | Tape & Reel (TR) Cut Tape (CT) | - |
| Component Category | - | Small-Signal Transistors |
| Current - Collector (ic) | 200 mA | - |
| Current - Collector Cutoff | 50nA | - |
| Dc Current Gain (hfe) (min) @ Ic, Vce | 100 @ 10mA, 1V | - |
| Fet Type | NPN | - |
| Market Reality | - | The S8050 / S8550 pair is the transistor of Chinese mass production - relays, chargers, LED drivers, small audio stages, appliance boards. Every fab makes it, it costs almost nothing, and that is exactly the problem: vendor specifications drift (collector-emitter ratings quoted at 20V by some makers and 25V by others), the SS prefix versions pass over twice the current in the same body, and the TO-92 lead order (E-B-C) is the mirror of the European small-signal parts it gets cross-referenced against (C-B-E). Substitution on this pair is a pinout and vendor-grade exercise, not an electrical one. |
| Mounting | Through Hole | - |
| Power - Max | 625 mW | - |
| Role In Circuit | - | Original Reference Part |
| Sourcing Status | - | Active Shenzhen Spot Sourcing (24–48h) |
| Vce Saturation (max) @ Ib, Ic | 300mV @ 5mA, 50mA | - |
Parts
- 2N3904 · diotec-semiconductor
- S8050 / S8550 · diotec-semiconductor