STMicroelectronics · Discrete semiconductors
START499D
RF TRANS NPN 4.5V SOT89
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START499D specifications
Recorded source facts. Missing values are kept explicit; verify the exact manufacturer document before design approval.
| Manufacturer | STMicroelectronics |
|---|---|
| Ordering code | START499D |
| Family | Discrete semiconductors |
| Package | TO-243AA |
| Product Status | Obsolete |
| Transistor Type | NPN |
| Voltage - Collector Emitter Breakdown (Max) | 4.5V |
| Frequency - Transition | Not provided in source |
| Noise Figure (dB Typ @ f) | Not provided in source |
| Gain | 13dB ~ 14dB |
| Power - Max | 1.7W |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 150 @ 160mA, 3V |
| Current - Collector (Ic) (Max) | 1A |
| Operating Temperature | 150°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | TO-243AA |
| Supplier Device Package | SOT-89 |
Documents and evidence
START499D ↗Before sourcing START499D
- Identify the firmware and board baseline
- Check flash, RAM and required peripherals
- Review pin assignment and supply limits
- Keep the full temperature and package suffix
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